Sand and water games improve the level of creativity in kids. Show your kids how to make outlines and shapes with sand models in the sand with their fingers or stuffs such as combs or a small plastic rake(耙子). Put some sand on a plate to use indoors and make learning to mark out letters and numbers added fun. Sand and water games or activities are things that even you can do with your kids that combine amusement, knowledge, creativity, and you can spend quality time with your children as well. 56. According to the text, sand and water games _________. A. are popular with many kids B. are played only on the beach C. can’t be shared with parents D. are welcomed by most parents 57. Why can sand and water games make teaching and learning easy? A. Because parents can instruct them. B. Because kids’ vocabulary is improveD. C. Because kids can predict the answers. D. Because kids are curious about them. 58. According to the text, playing sand and water games _________. A. can make kids amused, creative and sociable B. will change the traditional way of schooling C. may prevent kids from communicating with others D. may do harm to kids’ health 59. What’s the main purpose of the text? A. To teach kids how to play sand and water games. B. To tell parents the benefits of kids’ playing sand and water games. C. To persuade parents to allow their kids to play outsidE. D. To tell kids how to improve vocabulary and communication skills.

ThecoastoftheStateofMaineisoneofthemostirregularintheworlD.A.straightlinerunningfromthesouthernmostcoastalcitytothenorthernmostcoastalcitywouldmeasureabout225miles.Ifyoufollowedthecoastlinebetweenthesepointsyouwouldtravelmorethantentimesasfar.ThisirregularityistheresultofwhatiscalledadrownedcoastlinE.Thetermcomesfromtheglacial冰川的activityoftheIceAgE.AtthattimethewholeareathatisnowMainewaspartofamountainrangethattoweredabovetheseA.AstheglacierdescendedhoweveritappliedenormousforceonthosemountainsandtheysankintotheseA.AsthemountainssankoceanwaterchargedoverthelowestpartsoftheremaininglanD.Andthehighestpartsoftheformermountainrangenearesttheshoreremainedasislands.Marinefossilsfoundhereare225feetabovesealevelindicatingtheleveloftheshorelinepriortotheglacier.The2500-mile-longrockyandjaggedcoastlineofMainekeepswatchovernearly2000islands.Manyoftheseislandsaretinyanduninhabitedbutmanyarehometobloomingcommunities.Mt.DesertIslandisoneofthelargestmostbeautifuloftheMainecoastislandsleftbehindbytheglacier.Measuring16milesby12milesMt.Desertwasverynearlyformedastwodistinctislands.ItissplitalmostinhalfbySomesSoundaverydeepandverynarrowstretchofwatersevenmileslong.ForyearsMt.DesertIslandparticularlyitsmajorsettlementBarHarborhasaffordedsummerhomesforthewealthy.RecentlythoughBarHarborhasbecomeanewartscommunityaswell.ButthebestpartoftheislandistheunspoiledforestlandknownasAcadiaNationalPark.Sincetheislandsitsontheborderbetweentwodifferentgeographicalzonestheparksupportstheplantsandanimalsofbothzones.Italsoliesinamajorbirdmigrationlaneandisarestingspotformanybirds.TheestablishmentofAcadiaNationalparkin1916meansthatthisnaturalmonumentwillbepreservedandthatitwillbeavailabletoallpeoplenotjustthewealthy.VisitorstoAcadiamayreceivenatureinstructionfromtheparknaturalistsaswellasenjoycampinghikingcyclingandboating.OrtheymaychoosetospendtimeatthemuseumlearningabouttheStoneAgeinhabitantsoftheislanD.72.ThelargenumberofsmallislandsalongthecoastofMaineistheresultof__________.A.thedrowningoftheMainecoastlineB.glacier’sforcingmountainsintotheseaC.theirregularityoftheMainecoastlineD.oceanwater’sfloodingthemountainrange73.Fromthepassagewelearnthat__________.A.thecoastlineofMaineistentimeslongeraftertheIceAgeB.therearemorethan2500islandsalongtheMainecoastlineC.Mt.DesertIslandhasbeenbrokenapartbya7-mile-longwaterstretchD.anartscommunitygavewaytothesummerhomesonMt.DesertIsland74.WhatCANNOTbeinferredabouttheAcadiaNationPark?A.Itwelcomesallthepeoplerichorpoor.B.Ithasmuchappealforbird-watchinglovers.C.Itoffersvisitorsbothentertainmentandeducation.D.Itisaborderbetweenthetwogeographicalzones.75.Whichofthefollowingmightbethebesttitleofthepassage?A.ThepastandthepresentofMaineB.TheformationofMainecoastlineC.EffortsforpreservingnationalparksD.TouristattractionsonMt.DesertIsland

You'veheardofthefatsuitandthepregnancysuitnowmeetAGNES—theoldpersonsuit.AGNESstandsforAgeGainNowEmpathy换位体验SystemandwasdesignedbyresearchersatMIT'sAgeLabtoletyouknowwhatitfeelslike—physically—tobe75yearsold.ThebusinessofoldagedemandsnewtoolssaidJosephCoughlindirectoroftheAgeLab.Whilefocusgroupsandobservationsandsurveyscanhelpyouunderstandwhattheolderconsumerneedsandwantsyoungmarketersnevergetthat‘Ahha!’momentofhavingdifficultyopeningajarorgettinginandoutofacar.That’swhatAGNESprovides.Coughlinandhisteamcarefullyadjustedthesuittomakethewearerjustasuncomfortableasanoldpersonwhohasspentalifetimeeatingpoorlyandnotdoingmuchexercise.Specialshoesprovideafeelingofimbalancewhilebracesonthekneesandelbowslimitjointmobility.Glovesgivethefeelingofdecreasedstrengthandmobilityinthehandsandwristsandearplugsmakeitdifficulttohearhigh—pitchedsoundsandsofttones.Ahelmetwithstraps带attachedtoitpressesthespine脊柱andmorestrapsattachedtotheshoesdecreasehamstringflexibilityandshortensthewearer'sstep.AGNEShasbeenusedmostrecentlybyagroupofstudentsworkingonadesignofanupdatedwalker.Bywearingthesuittheycouldseeforthemselveswhatdesignandmaterialswouldmakethemostsenseforaphysicallylimitedolderperson.Coughlinsaidthesuithasalsobeenusedbyclothingcompaniescarcompaniesandretailgoodscompaniestohelpthemunderstandthelimitationsofanolderconsumer.AGNESisnotthedestinyofeverybodyhesaid.Sheisabadlybehavedladywhodidn'teatandexerciseverywell.Asecondarybenefitwe’vefoundwithAGNESisthatithasbecomeapowerfultooltogetyoungerpeopletoinvestintheirlong-termhealth.71.AGNEShasbeendevelopedto______.A.maketheusersmorecomfortableB.1etusunderstandoldpeoplebetterC.helpoldpeoplemovemorequicklyD.producenewtoolsfortheold-agebusiness72.Accordingtothearticleyoungmarketersnever.A.feelthesamewayasoldpeopledoB.seetheeffortsoldpeoplemakeC.askwhatoldpeopleneedandwantD.sayAhha!whentheymeetwithdifficulty73.The3rdparagraphmainlytellsabout.A.howtheAGNESwearerfeelsB.howAGNEShasbeendevelopedC.howoldpeopleactD.howAGNESworks74.Anupdatedwalkerunderlinedmostlikelyrefersto.A.someonewhotravelsalotB.aphysicallylimitedoldpersonC.someequipmentthathelpsoldpeoplewalkD.acompanywhoseserviceinvolvesoldpeople75.WhichmaybeafactresultingfromthesecondarybenefitofAGNES?A.Youngpeoplerespectoldpeople.B.Old-agebusinessimprovestheirservice·C.Oldpeopleeatandexercisewell.D.Youngpeopleeatandexercisewell.

Haveyoueveraskedyourselfwhyyouhavetwoeyesinsteadofonethreeorevenhundredsassomeinsectshave?Haveyouwonderedwhyyoureyesaresetclosetogetheronthefrontofyourfaceratherthanonthesidesofyourheadasonanimalslikerabbitsantelopesandhorses?Thereasonsaresimple—andimportanttothewayyouseetherestofyourworlD.Youreyesareliketwosmallcameras.A.cameracatchesanimageofanobjectandrecordsthisimageinminiatureonasmallpieceoffilm.Similarlywhenyoulookatsomethingeacheyetakesinwhatitseesandsendsthisimagetothebackoftheeyeball.Fromeacheyeanopticnervethensendstheimagetothebrain.Becauseyoureyesaresetclosetogethertheyviewtheworldfromaboutthesameheightbutfromslightlydifferentangles.Whileyourrighteyeseesanobjectalittletotherightyourlefteyeseesthesameobjectslightlytotheleft.WorkingasateamtheeyessendtheimagestothepartofyourbraincalledthecerebralcortexwhichcombinesthemintoasinglecenteredimagE.Seeingwithtwoeyesworkingtogetheriscalledstereoscopicvision.Thisallowsyoutoviewtheworldinthreedimensionsor3-D.Thesedimensionsareheightwidthanddepth.SensingdepthallowsyoutojudgethedistancebetweenyouandtheobjectsyouseE.Italsohelpsyoutoadjusttothechangingangleatwhichyouseesomethingasyoumoveclosertoorfartherawayfromit.Asyouwalkalongasidewalkforexampleseeinginstereohelpsyoutoknowhowcloseyouaretothestreethowfaryouneedtowalktoarriveatacertainbuildingandhowcloseyouaretosteppingonarockorapieceofglass.AsyourbodymovesyoureyesgiveyouacontinualflowofinformationaboutwherethingsareinrelationtowhereyouarE.Ifimagesarecomingfromonlyoneeyehoweveronlytwoofthesedimensions-heightandwidth-canbesenseD.A.worldseenwithoneeyeisthustwo-dimensionalasinaphotograph.Thesenseofdepthislackingmakingitmoredifficulttomovearoundsafely.NowconsiderwhyyourtwoeyesarelocatedonthefrontofyourfacE.Thinkofotheranimalswiththissamearrangement.Someexamplesarelionswolvesandowls.Whatdothesecreatureshaveincommon?Theyareallanimalsthathunt.Theseanimalshaveeyesfacingdirectlyinfrontofthem.Thisprovidesafieldofvisionthatisabout180degreeswidelikeahalf-circlE.Thiskindofsightiscalledbinocularvision.OntheotherhandanimalsthatarehuntedhaveeyesonthesidesoftheheaD.Thisprovidesnearlya360-degreefieldofvision.BecausetheseanimalsneedtodereadytorunatanymomentinordertostayalivetheyneedtoseethingscomingfromthesidesandfrombehinD.Howeverwithoutstereoscopicvisiontheseanimalshaveamoredifficulttimedetermininghowfarawayathreatis.64.Whichclaimfromthearticleisleastsupportedbyfactualevidence?A.Youreyesareliketwosmallcameras.B.Ifyouthinkitwouldbegreattohaveanothertypeofvision...thinkagain!C.Thisallowsyoutoviewtheworldinthreedimensionsor3-D.D.OntheotherhandanimalsthatarehuntedhaveeyesonthesidesoftheheaD.65.Thisarticlewouldmostlikelybefoundina______.A.textbookaboutanimalbehaviorB.popularscienceorhealthmagazineC.professionalmagazinefordoctorsD.newspaper’slocalnewssection66.Theauthorofthispassageconcludesthatseeinginstereo______.A.isanabilityhumansarefortunatetohaveB.helpspeopletohavebettervisionthananimalshaveC.wouldbebetterifitallowedforawiderfieldofvisionD.issimilartothewaycameraswork

You’veheardofthefatsuitandthepregnancysuit;nowmeetAGNES—theoldpersonsuit.AGNESstandsforAgeGainNowEmpathySystemandwasdesignedbyresearchersatMIT’sAgeLabtoletyouknowwhatitfeelslike—physically—tobe75yearsolD.ThebusinessofoldagedemandsnewtoolssaidJosephCoughlindirectoroftheAgeLaB.Whilefocusgroupsandobservationsandsurveyscanhelpyouunderstandwhattheolderconsumerneedsandwantsyoungmarketersnevergetthat‘Ahha!’momentofhavingdifficultyopeningajarorgettinginandoutofacar.That’swhatAGNESprovides.CoughlinandhisteamcarefullyadjustedthesuittomakethewearerjustasuncomfortableasanoldpersonwhohasspentalifetimeeatingpoorlyandnotdoingmuchexercisE.Specialshoesprovideafeelingofimbalancewhilebracesonthekneesandelbowslimitjointmobility机动性.Glovesgivethefeelingofdecreasedstrengthandmobilityinthehandsandwristsandearplugsmakeitdifficulttohearhigh-pitchedsoundsandsofttones.A.helmetwithstraps带attachedtoitpressesthespine脊柱andmorestrapsattachedtotheshoesdecreasehamstringflexibilityandshortenthewearer’sstep.AGNEShasbeenusedmostrecentlybyagroupofstudentsworkingonadesignofanupdatedwalker.Bywearingthesuittheycouldseeforthemselveswhatdesignandmaterialswouldmakethemostsenseforaphysicallylimitedolderperson.Coughlinsaidthesuithasalsobeenusedbyclothingcompaniescarcompaniesandretailgoodscompaniestohelpthemunderstandthelimitationsofanolderconsumer.AGNESisnotthedestiny天命ofeverybodyCoughlinsaiD.Sheisabadlybehavedladywhodidn’teatandexerciseverywell.A.secondarybenefitwe’vefoundwithAGNESisthatithasbecomeapowerfultooltogetyoungerpeopletoinvestintheirlong-termhealth.56.AGNESissupposedto_____.A.maketheusersmorecomfortableB.letusunderstandoldpeoplebetterC.helpoldpeoplemovemorequicklyD.producenewtoolsfortheold-agebusiness57.Accordingtothetextyoungmarketersnever_____.A.askwhatoldpeopleneedandwantB.seetheeffortsoldpeoplemakeC.feelthesamewayasoldpeopledoD.sayAhha!whentheymeetwithdifficulty58.The3rdparagraphmainlytellsabout_____.A.howadvancedAGNESisB.howAGNEShasbeendevelopedC.howoldpeopleactD.howAGNESworks59.Theunderlinedphraseanupdatedwalkermostlikelyrefersto_____.A.anewkindofsuitthathelpspeoplerelaxB.aphysicallylimitedoldpersonC.someequipmentthathelpsoldpeoplegetaroundD.acompanywhichservesoldpeople60.WhichmightbeafactresultingfromthesecondarybenefitofAGNES?A.YoungpeoplerespectoldpeoplemorE.B.Old-agebusinessesimprovetheirservicE.C.Oldpeopleeatandexercisewell.D.Youngpeopleeatandexercisewell.

Whatdoyouknowaboutthesea?Weknowthatitlooksveryprettywhenthesunisshiningonit.WealsoknowthatitcanbeveryroughwhenthereisastrongwinD.Whatotherthingsdoweknowaboutit?Thefirstthingtorememberisthattheseaisverybig.WhenyoulookatthemapoftheworldyouwillfindthereismorewaterthanlanD.TheseacoversthreequartersoftheworlD.Theseaisalsoverydeepinsomeplaces.ItisnotdeepeverywherE.Somepartsoftheseaareveryshallow.Butinsomeplacesthedepthoftheseaisverygreat.ThereisonespotnearJapanwheretheseaisnearly11kilometersdeep!Thehighestmountainintheworldisabout9kilometershigh.Ifthatmountainwereputintotheseaatthatplacetherewouldbe2kilometersofwateraboveit!Whatadeepplace!Ifyouhaveswumintheseayouknowthatitissalty.Youcantastethesalt.RiverswhichflowintotheseacarrysaltfromthelandintotheseA.Somepartsoftheseaaresaltierthanotherparts.ThereisoneseacalledtheDeadSeawhichisverysalty.Itissosaltythatswimmerscannotsink!FishcannotliveintheDeadSea!Inmostpartsoftheseathereareplentyoffishandplants.SomelivenearthetopoftheseA.Otherslivedeepdown.TherearealsomillionsoftinylivingthingsthatfloatintheseA.Thesefloatingthingsaresosmallthatitishardtoseethem.Manyfishlivebyeatingthesefloatingthings.TheseacanbeverycolD.Diverswhogodeepdownintheseaknowthis.Onthetopthewatermaybewarm.Whenthedivergoesdownwardstheseabecomescolderandcolder.Anotherthinghappens.Whenthedivergoesdeeperthewaterabovepressesdownonhim.Itsqueezeshim.Thenthediverhastowearclothesmadeofmetal.Buthecannotgoverydeep.Somepeoplewhowantedtogoverydeepusedaverystrongdivingship!Theywentdowntothedeepestpartoftheseainit.Theywentdowntoadepthofelevenkilometers!66.Whendoesthesealookbeautiful?A.Whenitiscalm.B.WhentheweatherisfinE.C.WhenthereisastrongwinD.D.Whenthereisastorm.67.Howmuchoftheearth’ssurfacedoeslandcover?A.15%B.25%C.30%D.45%68.WhydoestheauthormentiontheseasomewherenearJapan?A.Toshowthattheseainsomeplacesisverydeep.B.Toshowthattheseainsomeplacesisveryshallow.C.Toshowthatitsdepthis9kilometersgreaterthantheheightofthehighestmountain.D.Toshowthatitsdepthis11kilometersgreaterthantheheightofthehighestmountain.69.WhichofthefollowingstatementsabouttheDeadSeaisNOTtrue?A.Thereareplentyoffishinit.B.Itisasafeplaceforswimmers.C.Itisextremelysalty.D.Nofishcanbefoundinit.70.Whycan’tpeoplegoverydeepinthesea?A.BecausethedeepestpartoftheseaisverycolD.B.Becausethedeepestpartoftheseaisveryrough.C.BecausethepressureofthewateratgreatdepthsisunendurablE.D.BecausefiercefishusuallylivetherE.

Everwonderhowmuchacloudweighs?Whataboutahurricane?A.meteorologisthasdonesomeestimatesandtheresultsmightsurpriseyou.Let'sstartwithaverysimplewhitepuffycloud—acumuluscloud积云.Howmuchdoesthewaterinacumuluscloudweigh?PeggyLeMoneseniorscientistattheNationalCenterforAtmosphericResearchinBoulderColoradodidthenumbers.Thewaterinthelittlecloudweighsabout550tonsshecalculates.Orifyouwanttoconvertittosomethingthatmightbealittlemoremeaningfulthinkofelephants.Thethoughtofahundredelephants-worthofwatersuspendedintheskybegsanotherquestion—whatkeepsitupthere?Firstofallthewaterisn'tinelephantsizedparticles微粒it'sintinytinytinyparticlesexplainsLeMonE.Andthoseparticlesfloatonthewarmerairthat'srisingbelow.ButstilltheconceptofsomuchwaterfloatingintheskywassurprisingeventoameteorologistlikeLeMonE.IhadnoideahowmuchacloudwouldweighactuallywhenIstartedthecalculationsshesays.Sohowmanyelephantunitsofwaterareinsideabigstormcloud—10timesbiggerallthewayaroundthanthepuffycumuluscloud?AgainLeMonedidthenumbers:About200000elephants.NowratchetupthecalculationsforahurricaneaboutthesizeofMissouriandthefiguresgetreallymassivE.Whatwe'redoingisweighingthewaterinonecubicmetertheoreticallypulledfromacloudandthenmultiplyingbythenumberofmetersinawholehurricanesheexplains.Theresult?Fortymillionelephants.Thatmeansthewaterinonehurricaneweighsmorethanalltheelephantsontheplanet.Perhapsevenmorethanalltheelephantsthathaveeverlivedontheplanet.67.TheweightofisNOTmentionedinthepassagE.A.acumuluscloudB.atornadoC.ahurricaneD.astormcloud68.HowdidPeggyLeMonefeelabouttheresultofhercalculations?A.Shefounditnotconvincing.B.Shethoughtitneededfurthercalculations.C.Shewasquitesurprisedatit.D.SheconsideredthecalculationsinaccuratE.69.Whatcanbeinferredfromthepassage?A.Astormcloudweighsabout200000elephants.B.ThewaterinahurricaneweighsmorethanthatinanyotherkindofclouD.C.Therearelessthanfortymillionelephantslivingontheearth.D.Thewaterinthecloudisinverytinypartials.70.Whatisthebesttitleforthepassage?A.HowMuchaCloudWeighsB.HowMuchaHurricaneWeighsC.SurprisingResultsD.ElephantsintheSky

WiththeTeslaRoadsterandotherplug­in插入式electricvehicleshittingtheroaddemandisgrowingforaccessiblerefuelingpointstorechargethem.CarbonDayAutomotiveaChicago­basedcompanyhasnowdemonstratedasolar­poweredrechargingpointknownastheSolarPlug­InStationwhichletsmotoristseasilychargetheircarsusingelectricitythathasbeenproducedwithoutanyenvironmentaldamagE.TheSolarPlug­InStationhasgoneonshowinChicagoaspartofthecity’sbidtohostthe2016OlympicGames.AccordingtoCarbonDayAutomotivetheSolarPlug­InStationonshowinChicagoispartofthevitalinfrastructure基础设施requiredforelectricvehiclesinChicagoandwasthefocusofarecentvisitbytheInternationalOlympicCommitteE.Thesesolar­poweredelectricitypointswillbeuseddailytofuelthecity’selectricvehicleswithpowerfromthesun.Byproducingtheelectricityfrompollution­freesolarcelltheCO2emissionsarereducedtozero.SolarenergyandelectricvehiclesareapartnershipthatisonemoresteptoreducingourdependenceonforeignoilsaysRichardLowenthalCEOofCoulombTechnologies.CoulombTechnologiesrecentlydevelopedthecomponents部件requiredforindividualrechargingstationsmarketedasChargePointNetworkedChargingStations.CarbonDayAutomotiveistheMidwestdistributorfortheChargePointstations.TheSolarPlug­InStationconsistsofgiantsolarpanels电池板thatshadethetinyChargePointNetworkedChargingStation.Thesolarpanelisconnectedtoanundergroundbatterypackreadyforeverydayrefueling.WithoutthesestationsitwouldbelikedrivingaroundinatraditionalcarwithouttheavailabilityofgasstationssaysScottEmalfarbCEOatCarbonDay.Thedayoftrueplug­inelectricvehicleswillbeheresoonerthanmostpeoplerealizeandtheworldneedstobereadytoaccommodatethem.66.TheSolarPlug­InStationisusedaspartofthebidtohosttheOlympicsmainlybecause________.A.it’senvironmentallyfriendlyB.itmakesupforthelackofelectricityC.it’sanewideaandattractspeople’sattentionD.itbringsconveniencetoelectricvehicleusers67.Wecanlearnfromthepassagethat________.A.torechargetheelectricvehiclestakesalongtimeB.theSolarPlug­InStationwillcomeintousein2016C.theSolarPlug­InStationhasgoneonshowinternationallyD.Chicagoispromotingtheuseofelectricvehicles68.AccordingtothepassagehowmanyofthefollowingstatementsareTRUE?A.TeslaRoadsterisakindofplug­inelectricvehiclE.B.TheSolarPlug­InStationusessolarpowertochargeallofthecars.C.Chicagoisacitywhichisrichinoil.D.TheSolarPlug­InStationconsistsofundergroundbatterypacks.E.ScottEmalfarbisoptimisticaboutthefutureofplug­inelectricvehicles.A.2.B.3.C.4.D.5.69.ThepassageimpliesthatwhentheSolarPlug­InStationbecomespopular________.A.morevisitorswillcometoChicagoB.thecitizensofChicagowillbeabletogotoworkfasterC.morespaceforelectricvehicleswillbeneededD.thecostofelectricvehicleswillbelowerthantraditionalcars70.Whatwouldbethebesttitleforthepassage?A.ChicagoWillSoonBeFullofElectricVehiclesB.ChicagoCallsonPeopletoBuyElectricVehiclesC.ChicagoFightsforItsBidtoHostthe2016OlympicsD.ChicagoShowsItsSolar­poweredRechargingStations

HighSpeedBookScannerSimplyturningpagesofabookquicklymaynotseemlikethebestwaytoscanit.A.JapaneseresearchgroupatTokyoUniversityhascreatednewsoftwarethatallowshundredsofpagestobescannedwithinminutes.ScanningtextisnormallyaboringprocesswitheachpagehavingtobeinsertedintoascannerbuttheteamledbyProfessorMasatoshiIshikawausesahighspeedcamerathattakes500picturesasecondtoscanpagesastheyareturnedbyworkers.NormalscannerscanonlyscantheinformationthatisactuallybeforethemonthepagE.Thishighspeedbookscannerusesacamerathatcapturespagesat1000fpsastheyareturneD.A.systembuiltinallowsittoautomaticallycorrectanychangestothetextduetothepagebendingaswellaslightdifferencesduetoshadows.IttakesashotoftheshapethenitcalculatestheshapeandusesthosecalculationstofilmthescanningIshikawasaidexplainingthesystemusedtoreconstructtheoriginalpagE.Thecurrentsystemisabletoscananaverage250-pagebookinalittleover60secondsusingbasiccomputerhardwarE.Whileitnowrequiresextratimetoprocessthescannedimages影像theresearchershopetoeventuallymakethetechnologybothfasterandmuchsmaller.Inthemoredistantfutureonceitbecomespossibletoputallofthisprocessingononechip芯片andthenputthatinaniPadoriPodonecouldscanjustusingthatchip.AtthatpointitbecomespossibletoscansomethingquicklytosaveforlaterreadingIshikawasaiD.BeingabletoscanbookswithaniPhonemaybefurtheroffbutIshikawasaysthatacommercialversionofthelarge-scalecomputerbasedscanningsystemcouldbeavailableintwoorthreeyears.Whilethetechnologyhasthepotentialtotakepaperbooksintothedigitalageitremainstobehowpublisherswillreacttopeoplescanningtheirbookswhilejustturningpagesquickly.63.Accordingtothepassagetheadvantageofthenewscanningsoftwareisthat______.A.thereisnoneedtoscaneverypageB.itcanworkmuchmoreeffectivelyC.nomanpowerisneededinoperatingthescannerD.itcanmakethescanningprocessmoreinteresting64.AccordingtoIshikawathescannerworksby_____.A.changingtheshapeoftheimagesB.reducingthesizeoftheimagesC.reconstructingtheoriginalpageD.scanningseveralpagesatthesametime65.WhatisIshikawa’sattitudetowardsthedevelopmentofthescanningsystem?A.OptimistiC.B.Uncertain.C.Disapproving.D.Cautious.66.Whatdoestheunderlinedsentencemean?A.Peoplewillgetanybooktheylikemoreeasily.B.PublisherswillrefusetocommentonthenewsoftwarE.C.PublisherswillprobablynotwelcomethenewsoftwarE.D.Peoplewon’tneedtobuybooksanymorewithaniPhonE.

Intoday’sworldalmosteveryoneknowsthatairpollutionandwaterpollutionareharmfultopeople’shealth.Howevernotallknowthatnoiseisalsoakindofpollutionandthatisharmfultohumantoo.Peoplewhoworkandliveundernoisyconditionsusuallybecomedeaf耳聋的.Todayhoweverscientistsbelievethat10%ofworkersinBritainaredeafenedbythenoisewheretheywork.Manyoftheworkerswhoprintnewspapersandbooksandwhoweaveclothbecomedeaf.Quiteafewpeoplelivingnearairportsalsobecomedeaf.RecentlyitwasdiscoveredthatmanyteenagersinAmericacouldhearnobetterthan65-year-oldpeoplefortheseyoungpeopleliketolistentopopmusicandmostofpopmusicisakindofnoisE.Besidesnoiseproducedbyjetplaneormachineswillmakepeople’slifedifficultandunpleasantorevenmakepeopleillorevendrivethemmaD.Itissaidthatacontinuousnoiseofover85decibels分贝cancausedeafness.Nowadaysthegovernmentsinmanycountrieshavemadelawstoreduceorcontrolnoiseandmakeitlessthan85decibels.InChinathepeople’sgovernmentistryingtosolvenotonlyairandwaterpollutionproblemsbutalsothenoisepollutionproblems.45.Intheworldtodaynoteverypersonknows.A.waterpollutionB.airpollutionC.harmfulpollutionD.noisepollution46.Todayscientistsbelievethat.A.90%ofalltheworkersinBritainarenotsufferingfromnoiseB.10%ofalltheworkersinBritainareworkinginnoisyplacesC.10%ofalltheworkersinBritainaredeafenedbythenoisewheretheywork.D.90%ofalltheworkersarefreefromanynoise47.Thosewhousuallyhavepoorerhearing.A.weaveclothB.sellnewspapersC.likelisteningtomusicD.oftentravelbyplane48.Accordingtothepassageacontinuousnoisecanmakeyoudeaf.A.inworkingplacesB.oflessthen85decibelsC.ofover85decibelsD.ofonly85decibels

60.Fromthepassagewecanlearnthat______.A.catswouldratherplayalonethanwithothersB.catswereborntoplaytricksontheirownersC.manypeoplethinkdogsareman’sbestfriendsD.catssleeplessthananyotheranimaldoes61.Whatcanweinferfromthepassage?A.Catsareveryeasytobekeptashousepets.B.Catsneedmoretimetodoexercisethandogs.C.CatsareafraidofgoingoutalonE.D.Catsdon’tliketocleanthemselves.62.Thepassagetellsusthatifacatisleftaloneathomeitwill________.A.stayinitslittleboxB.destroythefurnitureC.bequieterthanusualD.doitsusualactivities63.Inthelastparagraphwecanlearnthatcatsare_______.A.playfulB.cuteC.politeD.noisy

Haveyoueverwonderedwhybirdssing?Maybeyouthoughtthattheywerejusthappy.Afterallyouprobablysingorwhistle吹口哨whenyouarehappy.Doyouknowwhataterritoryis?A.territoryisanareathatananimalusuallythemaleclaims声称asitsown.OnlyheandhisfamilyarewelcometherE.Nootherfamiliesofthesamespecies物种arewelcomE.YouryardandhouseareyourterritorywhereonlyyourfamilyandfriendsarewelcomE.Ifastrangershouldenteryourterritoryandthreatenyouyoumightshout.Probablythiswouldbeenoughtofrightenhimaway.Ifsoyouhaveactuallyscaredthestrangerawaywithouthavingtofighthim.A.birddoesthesamething.Butheexpectsnooutsidersalmostanytimeespeciallyatnesting筑巢season.Soheisscreamingallthetimewhetherhecanseeanoutsiderornot.Thisscreamingiswhatwecallabird’ssonganditisusuallyenoughtokeepanoutsideraway.Birdssingloudestinthespringwhentheyaretryingtoattractamateandwarnothersnottoentertheterritoryoftheirs.Youcanseethatbirdshavealanguageoftheirown.Mostofithastodowithattractingmatesandsettingupterritories.56.Somescientistsbelievethatmostofthetimebirds’singingisactually.A.anexpressionofhappinessB.awayofwarningC.anexpressionofangerD.awayofgreeting57.Whatisabird’sterritory?A.A.placewherefamiliesofotherspeciesareaccepteD.B.A.placewhereabirdmayshoutatthetopofitsvoicE.C.Anareaforwhichbirdsfightagainsteachother.D.Anareawhichabirdconsiderstobeitsown.58.Whydobirdskeeponsingingatnestingseason?A.Becausetheywanttoinvitemorefriends.B.Becausetheirsinginghelpsfrightenoutsidersaway.C.BecausetheywanttofindoutsidersarounD.D.Becausetheirsinginghelpsgetridoftheirfears.59.Howdoesthewriterexplainbirds’singing?A.Bycomparingbirdswithhumanbeings.B.Byreportingexperimentresults.C.Bydescribingbirds’dailylifE.D.Bytellingabird’sstory.60.Wherewillyouprobablyfindthepassage?A.A.textbookB.A.newspaperC.A.sciencereportD.A.guidebook

Foodsometimesgetspoisonedwithharmfulthings.A.personwhoeatssuchfoodcangetanillnesscalledfoodpoisoning.Foodpoisoningisusuallynotseriousbutsometypesaredeadly.ThesignsoffoodpoisoningusuallybeginwithinhoursofeatingthepoisonedfooD.Feverisoneofthemostcommonsigns.Certainmicroorganisms微生物causemosttypesoffoodpoisoning.Bacteriaandothermicroorganismscanpoisoneggsmeatvegetablesandmanyotherfoods.Afterenteringthebodythesetinylivingthingsrelease释放poisonsthatmakepeoplesick.Somechemicalscanalsocausefoodpoisoning.TheyareoftenaddedtofoodwhileitisbeinggrownprocessedorprepareD.Forexamplemanyfarmersspraychemicalsoncropstokillweedsandinsects.Somepeoplemayhaveabadreactiontothosechemicalswhentheyeatthecrops.SomeplantsandanimalscontainnaturalpoisonsthatareharmfultopeoplE.Theseincludecertainkindsofseafoodgrainsnutsseedsbeansandmushrooms.Whenpeoplehandlefoodproperlytheriskoffoodpoisoningisverysmall.Microorganismsmultiplyrapidlyindirtyplacesandinwarmtemperatures.Thismeansthatpeopleshouldnevertouchfoodwithdirtyhandsorputfoodonunwashedsurfaces.Foodshouldbekeptinarefrigeratortostopmicroorganismsfromgrowing.Meatneedstobecookedthoroughlytokillanydangerousmicroorganisms.Peopleshouldalsowashfoodcoveredwithchemicalsbeforeeatingit.FinallypeopleshouldnoteatwildmushroomsorotherfoodsthatgrowinthewilD.Someofthesefoodsmaycontainnaturalmaterialsthatarepoisonoustohumans.Inadditionsometypesoffishcanbepoisonous.Mostpeoplerecoverfromfoodpoisoningafterafewdaysofrestinganddrinkingextrawater.IfpeopleeatnaturalpoisonstheymustgotothehospitalrightawaytohavetheirstomachsemptieD.77.WhichofthefollowingstatementsisNOTtrue?A.Foodwhenpoisonedcanmakepeoplesick.B.Foodpoisoningmeansdeath.C.Foodpoisoningcomesinvarieties.D.Foodpoisoningcanbeserious.78.Weknowfromthepassagethatthesymptomsoffoodpoisoning.A.arealwaysaccompaniedbyafeverB.aretoocommontobenotedC.canbenoticedwithinhoursD.canheignored79.FoodpoisoningcanbecausedbyallthefollowingEXCEPT.A.somechemicalsB.lowtemperaturesC.sometinylivingthingsD.certainnaturalmaterials80.FromParagraph5wecanlearnthat.A.mushroomsshouldnotbeeatenB.vegetablesaresaferthanmeatandseafoodC.naturalpoisonsaremoredangerousthanchemicalsD.differenttypesoffoodshouldbehandleddifferently

Manypsychologistsintheearlytwentiethcenturybelievedthathumansuseonly10percentoftheirbrainsandeventhegreatAlbertEinsteinoncewrotethatmostpeopleuseonlyasmallportionofthegreymatterbetweentheirears.It'satheorythathasoftenbeenputforwardintelevisiondocumentaries;magazinesadvertisementsandbooksoverthepastcentury.Butnearlyallscientistsnowagreethe10percenttheoryiscompletelyunfounded.InfacttheyquestionhowthisfigurewaseverarrivedatinthefirstplaceandwhatareasofthebrainaresupposedtobeunneedeD.Thetheorysupposesthatif90percentofthebrainwereremovedapersonwouldStillbeabletofunctionnormallywhileinrealityitisknownthatdamagetoevenasmallareaofthebraincanresultinextremelyseriousphysicalinjurydifferentactivitiesandthatmanyareasofthebrainareusedatthesametimeforsomecomplexactivitiesorthoughtprocesses.Throughoutthecourseofonedaymost.areasofthebrainareactiveatsometimeevenduringsleep.The10percenttheorysuggeststhatcertainareaso'thebrainarenotusedbutscansslowactivitiesthroughouttheentirebrainandnotinanyseparatepart.Thefinalargumentagainstthe10percenttheoryisthefactthatdoctorscarefullymapthebrainbeforeremovingbraincancerssothattheydon'taffectotheressentialareas.Fromanevolutionarypointofviewit'shighlyunlikelybuttourcomparativelylargerbrainswouldhaveevolvedfromourancestorsiftheextraareaswerenotneedeD.Infactthereisabsolutelynoevidencesupportthe10percenttheory.41.Howdidthe10percenttheorygetsuchwidespreadpopularity?A.ItwaspromotedinvarioustypesofcopularmediA.B.AlbertEinsteinarguedstronglyinsupport.C.Itwasproveninscientificresearch.D.Fewpeoplecouldproveitwrong.42.Theunderlinedwordunfoundedischestinmeaningto_________.A.undiscoveredB.unprovenC.unknownD.unnecessary43.Whichofthefollowingistrueaccordingtothewriter?A.Weuselessthan10%ofourbrains.B.Mostbraindisordersaffectthesamepartofthebrain.C.Thebrainislessactiveduringtimesofsleep.D.The10percenttheorydoesnotmakeevolutionarysensE.44.Whatcanweinferfromthepassage?A.Peopletodayusemoreoftheirbrainthaninthepast.B.ScientificopinionaboutthetopicofbrainuseisequallydivideD.C.Ourunderstandingofthebrainhaschangedgreatlyinthepastdecades.D.Modernscientistshaveacompletepictureofhowthebrainworks.45.Whatisthemainpurposeofthepassage?A.Topresenttwosidesofbraintheory.B.Tocriticizethe10percenttheory.C.Toexplainhowbrainworks.D.Todescribethehistoryofbrainresearch.

OppositionisgrowingtotheBerlinZoo’splanstofindanewhomeforKnutthemoneymakingcelebritypolarbearwhosepopularityhasbeenexploitedbyenvironmentalistsandevenCanadiantourismpromoters.NolongercuteandjustdaysbeforehissecondbirthdayKnutwillbegivenanewhomethatisexpectedtoincludeapotentialmatingpartner.TheBerlinZoofacingtheglobaleconomiccrisiscan’taffordtheestimated$13millionitwouldtaketoacquireafemaleandanewhomeforthemtosharE.It’stimeforhimtogo---thesoonerhegetsanewhomethebettersaidseniorbearkeeperHeinerKloes.ButsomeBerlinersarebeginningacampaigncollectingpetition请愿书signaturesandarguingthathe’satouristdrawandasymbolasimportantastheBrandenburgGatE.HemeansalottomanypeoplE.Whenyou’rewithhimyouforgetyourproblemsHartmutWiedenrothco-founderofthecampaigntoldSpiegelOnlinE.Knutbecameaninternationalcelebrityin2007drawinghugecrowdstohiscageandtriggeringsalesofthousandsofKnuttoysandKnut-shapedcandies.TheVancouver-basedCanadianTourismCommissionmadeKnutamajorpartofitsCanada—KeepExploringcampaigntodrawtouriststothecountry---andespeciallytopolarbearcountryinnorthernManitobatoseethemintheirnaturalhabitat.Environmentalistsalsousedthebeartopromotethefightagainstglobalwarming.ButKnut’spopularitydiminishedashissizeincreasedto210kilogramsHewasphotographedatonepointsnapping咬atachildnearhiscagE.InSeptemberhiskeeperThomasDoerfleindiedofaheartattack.DoerfleinwhobecameacelebrityhimselfafternursingthetinyballofwhitefurwhenKnut’smotherrejectedhimhadbeenre-assignedshortlyafterKnut’sfirstbirthday.SomeanimalrightscriticssaidKnuthasbeenshowingunusuallyaggressivebehaviorbecauseofhisunnaturalupbringing.63.TheBerlinZoointendstofindanewhomeforKnutmainlybecauseof_______.A.themotherbeardesertinghimB.Knut’saggressivebehaviorC.lackingaskillfulbearkeeperD.itsfinancialproblem64.A.campaignisbeinglaunchedinBerlin_______.A.inordertokeepKnutinthezooB.bysellingKnut-shapedcandiesC.todrawtouriststonorthernManitobaD.towarnpeopleofglobalwarming65.TheunderlinedwordtriggeringinParagraph5canbereplacedby_______.A.decreasingB.preventingC.promotingD.conducting66.Whatwouldbethebesttitleforthepassage?A.DoerfleinacelebrityofGermanyB.ZoosaysKnutmustgoC.ThepolarbearcapitaloftheworldD.PolarbearsinCanada

TodayalmosteveryoneknowscomputersandtheInternet.ffIaskyouWhatisthemostimportantinyourlife?maybeyouwillsayComputersandtheInternet.?ThefirstcomputerWasmadein1946.Itwasverybigbutitworkedslowly.Todaycomputersaregettingsmallerandsmaller.Buttheyworkfasterandfaster.Whatcancomputersdo?A.writerhassaidPeoplecan'tlivewithoutcomputerstoday.TheInternetcamealittlelaterthancomputers.Itisabouttwenty-fiveyearslaterthancomputers.ButnowitcanbefoundalmosteverywherE.Wecanuseittoreadbookswritelettersdoshoppingplaygamesormakefriends.ManystudentsliketheInternetverymuch.TheyoftengointotheInternetassoonastheyarefreE.TheymakefriendsontheInternetandmaybetheyhaveneverseenthesefriends.Theydon'tknowtheirrealnamesagesandevensex性别.Theyaresointerestedinmakingtheunrealfriendsthattheycan'tputtheirheartintostudy.Manyofthemcan'tcatchupwithothersonmanysubjectsbecauseofthat.WecanusecomputersandtheInternettolearnmoreabouttheworlD.ButatthesametimeweshouldrememberthatnotallthethingscanbedonebycomputersandtheInternet.68.TheInternetcannotbeusedfor______A.studyingB.shoppingC.thinkingD.playing69.TheInternetwasborninabout______A.1960B.1970C.1980D.198570.WhichofthefollowingisTRUE?A.FewstudentslikegoingintotheInternet.B.StudentsusetheInternettomakeunrealfriends.C.Theseunrealfriendsoftenmeeteachother.D.StudentsknowthefriendsOntheInternetverywell.71.WhatdoesthewriterthinkoftheInternet?A.Itiswonderful.B.Itcanmakestudentsstudyharder.C.Itisnotgoodforstudents.D.Itishelpfulbutwecan'tdoeverythingonit.

InaworldwithlimitedlandwaterandothernaturalresourcestheharmfromthetraditionalbusinessmodelisontherisE.Actuallythepastdecadehasseenmoreandmoreforestsdisappearingandglobebecomingincreasinglywarm.Peoplenowrealizethatthisunhealthysituationmustbechangedandthatwemustbeabletodevelopinsustainable可持续的ways.Thatmeansgrowthwithlowcarbonordevelopmentofsustainableproducts.Inotherwordsweshouldkeeptheearthhealthywhileusingitssupplyofnaturalresources.Todaysustainabledevelopmentisapopulartrendinmanycountries.Accordingtoarecentstudytheglobalmarketforlow-carbonenergywillbecomethreetimesbiggeroverthenextdecadE.Chinaforexamplehassetitsmindonleadingthatmarkethopingtoseizechancesinthenewroundoftheglobalenergyrevolution.Itisnowtryinghardtomakefulluseofwindandsolarenergyandisspendingahugeamountofmoneymakingelectriccarsandhigh-speedtrains.Inadditionwearealsoseeinggreatgrowthintheglobalmarketsforsustainableproductssuchaspalmoil棕榈油whichisproducedwithoutcuttingdownvaluablerainforest.Inrecentyearsthemarketsforsustainableproductshavegrownbymorethan50%.Governmentscanfullydevelopthepotentialofthesenewmarkets.Firsttheycansethightargetsforreducingcarbonemissions排放andtargetsforsavingandreusingenergy.Besidesstrongerarrangementofpublicresourceslikeforestscanalsohelptospeedupthedevelopment.FinallygovernmentscanavoidthehugeexpensesthataretakingusinthewrongdirectionandredirectingsomeofthoseexpensescanacceleratethechangefromtraditionalmodeltoasustainableonE.Themajorchallengeofthiscenturyistofindwaystomeettheneedsofagrowingpopulationwithinthelimitsofthissingleplanet.Thatisnosmalltaskbutitoffersabundantnewchancesforsustainableproductindustries.62.ThetraditionalbusinessmodelisharmfulbecauseofallthefollowingEXCEPTthat______.A.ItmakestheworldwarmerB.itconsumesnaturalresourcesC.itbringsseveredamagetoforestsD.itmakesgrowthhardtocontinue63.Whatisthemainpurposeofthepassage?A.Tointroduceanewbusinessmodel.B.Toadvocatesustainabledevelopment.C.Topredictachangeoftheglobalmarket.D.Tocomparetwobusinessmodels.64.Tofullydevelopthelow-carbonmarketsgovernmentcan______.A.cutpublicexpensesB.forbidcarbonemissionsC.developpublicresourcesD.encourageenergypreservation65.Wecanlearnfromthelastparagraphthatbusinesseshavemanychancesto______.A.developsustainableproductsB.explorenewnaturalresourcesC.makefulluseofnaturalresourcesD.dealwiththemajorchallenge

Dogsandmillionaireshavealotincommon.Theyareabsoluteopportunistsespeciallywhenitcomestorewards.Theydefendtheirterritory地盘.Andingeneraltheydon’tlikecats.Perhapsthatexplainsanewsurveyshowingthatmillionairesarefarmoredog-friendlythantherestofAmericans.AccordingtoastudybySpectremGroup58%ofmillionairepetownershaveadog.Only37%ownacat.Only3%keepfish2%birdsand2%haveahorsE.Similarly39%ofU.S.householdsownadogcomparedto33%ofhouseholdsowningacatreleasedbytheHumaneSocietyJenniferConaatrustandestatesattorney信托和资产律师andpartnerwithGenserSubowGenser&ConainNewYorkdoesalotofworkonpettrusts.Shesaidofallthepettrustsshe’sworkedon90%arefordogsandonly10%areforcats.Shesaiddogsprovideonethingespeciallyimportantforthewealthy:unconditionallovE.Youdon’tgetthatfromacatshesaidDogsarelikechildrenforsomefamiliesexceptthattheydon’tmessupincollegeorrunoffwithmoney.Sometimesit’seasytoseewhydogsarethefavoritechilD.Millionairesshowtheirlovefortheirdogsinpartbytheirspending.Onequarterofmillionairepetownersspendmorethan$1000ayearontheirpetseveryyeartheSpectremstudysaidwhilemorethanhalfspendmorethan$500ayear.Manywouldsaythosenumbersareunderstatedgivenallthediamond-dogcollarsdogfoodsandboomingdogspasinevidencethesedaysnottomentionthemedicalbills.Thesurveyshowed34%ofpetownersspendmoneyondecoratingwhileonly6%spendonsweatersoutfitsandcostumes.Morethanhalfofmillionairepetownersspendmoneyonteethcleaningfortheirpets.Morethan16%meanwhilesaidtheywouldspendmoneyonreconstructivesurgeriesandanti-anxietyanti-depressionmedicationfortheirpets.72.Whatisthepassagemainlyabout?A.MillionaireslikedogsmorethanotherAmericans.B.KeepingdogsaspetsisquitepopularamongAmericans.C.Petdogshelprelievetheirowners’anxietyanddepression.D.Millionairesspendmuchmoneyonteethcleaningfortheirpets.73.FromthesurveybySpectremGroupwecanlearn___________.A.aboutonethirdofAmericanhouseholdsownacatB.morethanhalfofmillionairepetownershaveadogC.millionairepetownersspend$1000ontheirpetsdailyD.34%ofpetownersspendmoneyondogclothing74.What’sthemainreasonwhymillionairesshowgreatlovefortheirdogs?A.Theycanaffordthehighexpensetoraisepetdogs.B.PetdogshavenevermadeamessofthingsarounD.C.Millionairesfeelmoresecureincompanyofdogs.D.Petdogsshowunconditionallovefortheirowners.75.WhatdoesJenniferConaprobablythinkofmillionairesowningpetdogs?A.Ridiculous.B.AcceptablE.C.NegativE.D.Indifferent.

ScientistsatHarvardUniversityandBatesCollegefindfemalechimpanzees黑猩猩appeartotreatsticksasdollscarryingthemarounduntiltheyhavechildrenoftheirown.Youngmalesengageinsuchbehaviormuchlessfrequently.ThenewworkbySonyaM..KahlenbergandRichardW..WranghamdescribedthisweekinthejournalCurrentBiologyprovidesthefirstevidenceofawildnon­humanspeciesplayingwithdollsaswellasthefirstknownsexdifferenceinawildanimal’schoiceofplaythings.Thetworesearcherssaytheirworkaddstoagrowingbodyofevidencethathumanchildrenareprobablybornwiththeirownideasofhowtheywanttobehaveratherthansimplymirroringothergirlswhoplaywithdollsandboyswhoplaywithtrucks.Dollplayamonghumanscouldhaveitsoriginsinobject—carryingbyearlierapes猿类theysaysuggestingthattoyselectionisprobablynotdueentirelytosocialization.Inhumansthereareobvioussexdifferencesinchildren’stoyplayandtheseareremarkablysimilaracrossculturessaysKahlenberg.Whilesocializationbyeldersandpeershasbeentheprimaryexplanationourworksuggeststhatbiologymayalsohaveanimportantroletoplayinactivitypreferences.In14yearsofdataonchimpanzeebehaviorattheKibaleNationalParkinUgandaKahlenbergandWranghamcountedmorethan100examplesofstick­carrying.Someyoungchimpanzeescarriedsticksintothenesttosleepwiththemandononeoccasionbuiltaseparatenestforthestick.WehaveseenjuvenilesoccasionallycarryingsticksformanyyearsandbecausetheysometimestreatedthemratherlikedollswewantedtoknowifingeneralthisbehaviortendedtorepresentsomethinglikeplayingwithdollssaysWranghamaProfessoratHarvarD.Ifthedollhypothesis假设wasrightwethoughtthatfemalesshouldcarrysticksmorethanmalesdoandthatthechimpanzeesshouldstopcarryingstickswhentheyhadtheirfirstchilD.Wehavenowwatchedenoughyoungchimpanzeestoprovebothpoints.67.Whatdoesafemalechimpanzeedowithsticks?A.Shegivesthemtoherchildtoplaywith.B.Shetreatsthemasdolls.C.Shemakesusefultoolsfromthem.D.Shetreatsthemasweapons.68.Whatcausesthedifferenttoyselectionofchimpanzeesaccordingtothepassage?A.SexdifferencE.B.Socialization.C.Environment.D.CulturaldifferencE.69.Wecaninferfromthefourthparagraphthat________.A.socializationhasnothingtodowithhuman’schoiceofplaythingsB.sexdifferenceistheonlyfactorinhuman’schoiceofplaythingsC.thebiologyfactormayalsoinfluencetoychoiceD.peoplechoosedifferenttoysindifferentcultures70.Itcanbeconcludedfromthepassagethat________.A.bothhumansandchimpanzeeschoosetheirplaythingsduetosexdifferenceB.differentfactorscausehumansandchimpanzeestochoosedifferentplaythingsC.onlyfemalechimpanzeeshaveplaythingsD.chimpanzeesusuallychooseplaythingsfortheirchildren

Europe’sdeadlyoutbreakofarareformofE.colibacteria大肠杆菌hasbroughtnewattentiontofoodsafetyissues.Oneoftheproblemswhenpeoplegetsickfromfoodisthatthesimplestquestionisoftendifficultorevenimpossibletoanswer.Justwhatdidthepeopleeatthatmadethemsick?Ofcourseonewaytoavoidthesemedicalmysteriesistokeepdangerousorganismsoutofthefoodsupply.Thisiseasiersaidthandonebutscientistskeeplookingfornewways.ScientistsintheUnitedStateshavedevelopedanexperimentalsystemthatusesahigh-techopticalscanner.Thesystemisdesignedtoidentifythepresenceofcontaminants致污物likesoiloranimalwasteonfreshproducE.ThesecanbesourcesofE.coli.E.colibacterianaturallyliveintheintestines肠ofhumansandmanyanimals.MostkindsofE.coliareharmlessbutsomecanmakepeoplesick.Thenewscannercanalsoshowdamageandimperfectionsthatmightmaketheproduceunappealingtoshoppers.ScientistsdesignedthesystemataDepartmentofAgricultureresearchcenterinBeltsvilleMarylanD.MoonKimoftheAgriculturalResearchServiceledtheteam.MOONKIM:WewererequestedwewereaskedtodevelopamethodtodetectcontaminationinproducE.SowestartedwiththeappleasthemodelsamplE.Thescannerusesahigh-speedcameraplacedovertheconveyerbeltthatmovestheproducealong.Astheapplesmovealongthebeltthescannercapturesimagesofeachpieceoffruit.MoonKimsaystheteamhopesthesystemwillbeavailablebeforelong.MOONKIM:Wearetargetingfordevelopmentincommercialplantsforthenextseveralyears.Thescannercandirectasortingmachinetoseparatethebadapplesfromthegoodones.Thesystemiscurrentlyabletoshowthesurfaceofonlyhalftheappleasitspeedsby.TheinventershopetoimprovetheprocesssoitcanshowthewholesurfacE.57.Whatisthemaintopicofthetext?A.BacteriA.B.A.high-techscanner.C.A.cameraD.Foodsafety.58.E.colibacteria______.A.brokeoutallovertheworldB.comesfromsoiloranimalwasteC.isextremelyharmfultohealthD.doesnotcauseillness59.Thehigh-techscanner______.A.canhelptosortoutdifferentfruitsB.maketheproduceappealtoshoppersC.canonlycaptureimagesofthewholeappleD.canidentifythepresenceofcontaminants60.Whatcanbeinferredfromthetext?A.ThescannerneedstobeimproveD.B.Thescannerwillbeavailableinthenextseveralyears.C.MoonKimisunwillingtodevelopthescanner.D.ThescannerisconnectedtoasortingmachinE.

Researchershaveestablishedthatwhenpeoplearementallyengagedbiochemicalchangesoccurinthebrainthatallowittoactmoreeffectivelyincognitive认知的areassuchasattentionandmemory.ThisistrueregardlessofagE.Peoplewillbealert警觉的andreceptiveiftheyarefacedwithinformationthatgetsthemtothinkaboutthingstheyareinterestedin.AndsomeonewithahistoryofdoingmoreratherthanlesswillgointooldagemorecognitivelysoundthansomeonewhohasnothadanactiveminD.Manyexpertsaresoconvincedofthebenefitsofchallenginginthebrainthattheyareputtingthetheorytoworkintheirownlives.TheideaisnotnecessarilytolearntomemorizelargeamountsofinformationsaysJamesFozardassociatedirectoroftheNationalInstituteofAgeing.Mostofusdon’tneedthatkindofskill.Suchspecifictrainingisoflessinterestthanbeingabletomaintainmentalalertness.Fozardandotherssaytheychallengetheirbrainswithdifferentmentalskillsbothbecausetheyenjoythemandbecausetheyaresurethattheirrangeofactivitieswillhelpthewaytheirbrainswork.GeneCohenactingdirectorofthesameinstitutesuggeststhatpeopleintheiroldageshouldengageinmentalandphysicalactivitiesindividuallyaswellasingroups.Cohensaysthatwearefrequentlyadvisedtokeepphysicallyactiveasweagebutolderpeopleneedtokeepmentallyactiveaswell.ThosewhodoaremorelikelytomaintaintheirintellectualabilitiesandtobegenerallyhappierandbetteradjusteD.ThepointisyouneedtodobothCohensays.Intellectualactivityactuallyinfluencesbrain-cellhealthandsizE.50.Whatisthepassagemainlyabout?A.SpecialmentaltrainingforoldpeoplE.B.Biochemicalchangesinthehumanbrain.C.Theinfluenceofintellectualactivitiesonbrain-cellsizE.D.Theimportanceofmentalactivitiesintheefficiencyofthebrain.51.A.personwhoissaidtobecognitivelyhealthyshould________.A.bealertandreceptiveinmindB.whoarehighlyintelligentC.begoodatdoinggroupworkD.rememberlargequantitiesofinformation52.ThefindingsofJamesandotherscientistsintheirwork_________.A.remainatheorytobefurtherprovedB.havebeenchallengedbymanyotherexpertsC.arepracticedbytheresearchersthemselvesD.havebeengenerallyaccepted53.AccordingtoFozard'sargumentpeoplecanmaketheirbrainsworkmoreefficientlyby_________.A.constantlydoingmemoryworkB.makingfrequentadjustmentsC.goingthroughspecifictrainingD.takingpartinvariousmentalactivities54.WhichofthefollowingstatementswouldCohenmostprobablysupport?A.Olderpeopleshouldkeepmentallyactivebychallengingtheirbrains.B.Nomatterwhetheritisdoneingrouporalonementalactivityisalwaysgoodforbrain-cellhealth.C.Physicalstrengthismoreimportanttoolderpeoplethanmentalhealth.D.Peoplewhoengageinmorementalactivitiesbutlessphysicalonesarealwayshappier.

ForgetfamousgoalcelebrationsuchasTheRobotbyPeterCrouchandTheDivebyJuergenKlinsmannherecomestheSouthAfricanDiskidance.TheDiskidancewhichisperformedthroughheadingandkickinganimaginaryballmaybeagoalcelebrationtowatchinthefollowingmatches.SouthAfrica’sSiphiweTshabalalaandhisteammatesperformedthisdifferentdancewhentheycelebratedhisgoalagainstMexicointheopeningWorldCupgameonFriday.ThedanceisalreadypopularonYouTubeandmanysoccerfansmaywanttolearnthemoves.EvenSouthAfrica’sPresidentJacobZumahaslearnttheDiskidancewhichcouldbebetterthanCameroonRogerMilla’scornerflagdancecelebrationinthe1990FIFAWorldCup.USactorJohnTravoltaperformedthedanceshortlyafterlandinghisBoeing707atLanseriaairportnorthofJohannesburgonWednesdaymorning.Goalcelebrationsarenowpartofthebiggestsportingeventandplayersplantheminadvancejustincasetheyfindthebackofthenet.Infootballagoalcelebrationisthepracticeofcelebratingthescoringofagoal.Thecelebrationmaybeperformedbythegoal-scorerhisorherteammatesthemanagerorcoachesandthesupportersoftheteam.TheRobotgoalcelebrationwassopopularthatEnglandfansweresurprisedwhenCrouchanEnglishinternationalfootballersaidthathewouldn’tbedoingitanymoreunlessEnglandwontheWorldCup.ThewordDiskiisthewordusedbythelocalpeopleforsoccerandmayalsodescribethelocalstyleoffootballwhichfocusesondribbling带球andothertricks.63.BesidesDiskidancehowmanytypesofgoalcelebrationsarementionedinthepassage?A.2.B.3.C.4.D.5.64.TheunderlinedpartfindthebackofthenetinParagraph4means.A.scoreagoalB.winthematchC.takearestD.takepartinamatch65.WhatdowelearnaboutthewordDiski?A.Ithasbecomethemostpopularsportswordintheworldnow.B.Itwasusedtoshowhowpeopleweregoodatdribbling.C.Itwasusedtodescribeafootballwhichwasimaginedbyfootballers.D.ItwasprobablymainlyusedinSouthAfricabeforetheSouthAfricaWorldCup.66.Whatcanweinferfromthepassage?A.Allthefootballersshouldhavetheirowngoalcelebrations.B.Goalcelebrationsplayanimportantroleinfootballgames.C.FamousgoalcelebrationsallappearedintheWorldCupgames.D.Footballersoftendon’tplantheirgoalcelebrationsaheadoftimE.

PresentorFuture?Americansarefuture-minded.Theyreallyliveinthefuture.Thepresentisjustawaystation.ThisenthusiasmforthefutureisreallynotsharedevenbyallEuropeancountries.TheFrenchareknowntobepresent-mindedwhiletheBritishareoftencalledpast-minded.ForJapaneseZenfollowerstimeislikeapoolofwater.Thingsjusthappen.Thereisnopastpresentorfuture.Egyptiansarewellknownfortheirpastmindedness.Ididnotgrowupwithatelephone.SotheYellowPagesweresomethingbrandnewformewhenIfirstarrivedintheU..S...Istillhadthehabitofgoingtoastoreonlytofindoutthatitdidn'thavewhatIneeded.MywifeusedtoaskDidn'tyoucallbeforegoingthere?Theconceptofcallingaheadoftimerequiresplanningandafuturemindwhilemyupbringingwasinapresent-mindedculture.Onethingmynuclearfamilyenjoyswhenmymomvisitsishercooking.SonormallyIaskmymomacoupleofdaysinadvancewhatthingssheneedsfortheupcomingmeals.Sheisalwayssurethatshehaseverything.Thetruthisthatmanytimesinthemiddleofcookingshewillaskforitemswedon'thave.Thatshowsapresentmind.Youdealwithitwhenyougetthereinsteadofdoingadvancedplanning.Listeningtoweatherforecastsandthenlivingyourlifeaccordinglyisasignofafuturemind.NormallywhenIgettoworkandseeeveryonewalkingaroundwiththeirumbrellasIfigurethatitwillraintoday.Herepeoplearetrainedfromtheirchildhoodtofigureoutatleastthatday'sexpectedweatherbeforeleavingthehouse.Iamnormallymissingmyumbrellabecauseitwasnotrainingandtheskydidnothavedarkclouds.Heremypresentmindgetsmeweteverytime.MainstreamAmericanshaveputinsidethemselvestheclocktoadegreewhichisbeyondthecomprehensionofmanyculturesacrosstheglobe.SotheannoyancemanyAmericansfacewhenworkingwithpeoplefromotherculturesisunderstandable.Intoday'sdialoguebuildingthebridgetothe21stcenturymayturnouttobeeasierthanbuildingbridgeswithothercultureswhichmayappeartobesoforeign.Howevertheyarevitalpartnersforourinterdependentlifeonthisplanet.60.Theauthorwasmostlikelybornin____.A.AmericaB.FranceC.BritainD.Egypt61.Whichistrueabouttheauthor?A.Hewasmorefuture-mindedthanhismother.B.HereceivedmostofhiseducationinJapan.C.Helearnedtochecktheweatherbeforegoingout.D.Hedislikedcallingthestorebeforegoingshopping.62.What'sthemainideaofthelastparagraph?A.Americansvaluetimemorethananyotherculture.B.Americansshouldbeunderstoodbyothercultures.C.Communicationbetweenculturesiseasierthanbefore.D.Harmonyshouldbeachieveddespiteculturaldifferences.

Onecauseofthecurrentfoodcrisisisdrought.FoodpricesarehighinpartbecauseofdryweatherinplacesasfardistantasSpainandAustralia.Aroundtheworldtheamountoflandaffectedbydroughthasdoubledinthepastthirtyyears.AndscientistsconcernedaboutclimatechangebelieveitwillcausemoredroughtinmanyareasinthefuturE.Alotofresearchisgoingintoeffortstodevelopdrought-resistantcrops.Oneprojectinvolvestobaccoplantsgeneticallyengineeredtokeeptheirleavesduringwatershortages.Theychosetobaccobecauseithasbigleaves.Alsoitgrowsfastandhasstructuralsimilaritieswithsomeotherplants.Theresearchersdidanexperimentwithtwogroupsoftobaccoplants.Theyworkedwithasetofnormalplantsandasetoftransgenicplants.Thesehadageneaddedtointerferewiththebiologicalcausesofleaflossduringdrought.Theresearchersputalltheplantsinagreenhousetogrowundernormalconditionsforfortydays.Thenforfifteendaysafterthattheplantsdidnotreceiveanywater.Thenormalplantslosttheirgreencolor.Finallytheylosttheirleaves.Buttheresearcherssaythetransgenicplantskepttheirleavesandtheircolor.Afterthefifteendrydaysalltheplantswerewateredagainforaweek.Thetransgenicplantsreturnedtonormalgrowthandtheirseedproductionwasclosetonormal.ButtheotherplantsalldieD.Inadditiontheresearchersfoundthattheplantscouldsurviveononlythirtypercentofthenormalamountofirrigationwater.YieldlosswasminortheysaiD.Thefindingsappearedlate2007intheProceedingsoftheNationalAcademyofSciences.TheUniversityofCaliforniahasappliedforpatentprotectionforthetechnology.TheresearchersexpecttomoveforwardwithfieldtestingofthetransgenictobaccoinlateAugust.Theyhopeforsimilarresultswithcropsliketomatoesricewheatandcotton.71.ItcanbeinferredfromParagraph1that_______A.theamountoflandaffectedbydroughthasdoubledinthepastthirtyyearsintheworldB.droughtistheonlycausetoleadtothecurrentfoodcrisis.C.foodpriceswillbehigherinthefuturewiththedroughtareasextendingD.foodpriceshasnothingtodowiththeclimatechangeintheworld72.Oneprojectchoosestobaccoplantsbecause__________A.plantingtobaccocanbringingreatprofits.B.tobaccoplantshavelargeleavesandstructuralsimilaritieswithsomeotherplantsC.tobaccoplantsgrowsfastD.BothB.andC.73.Fromthebeginningtotheendtheexperimentwithtwogroupsoftobaccoplantslastsforatleast_______daysA.40B.55C.62D.7774.Theconclusiontheycandrawintheexperimentisthat________A.thetwogroupsoftobaccoplantsarethesamedrought-resistantcrops.B.thetransgenicplantscanreturntothenormaltobaccoplantsC.thetransgenicplantsneedmorewaterthanthenormalonesD.thetransgenicplantsneedlesswaterandthedecreaseofproductionissmall75.Thenextaimoftheexperimentis______A.toapplyforpatentprotectionforthetransgenictechnologyB.toincreasetheproductionofthetransgenicplantsC.tohopeforsimilarresultswithothercrops.D.tomoveforwardwithfieldtestingofthetransgenictobacco

SnowfallsintheEarth’sextremeNorthandSouththroughouttheyear.Howevertheheaviestsnowfallshavebeenreportedinthemountainsofotherareasduringwinter.SnowisevenknowntofallneartheEquator赤道butonlyonthehighestmountains.Snowcontainsmuchlesswaterthanrainbutmuchofthewatertheworldusescomesfromsnow.Meltingsnowprovideswaterforriverselectricpowerstationsandagriculturalcrops.InthewesternUnitedStatesmountainsnowprovidesuptoseventy-fivepercentofallsurfacewatersupplies.Snowfallhelpstoprotectplantsandsomewildanimalsfromwinterweather.Freshsnowismadelargelyofairtrappedamongthesnowcrystals晶体.BecausetheairhastroublemovingthemovementofheatislimiteD.Snowalsoinfluencesthemovementofsoundwaves.Thesurfaceofthesnowtakesinorabsorbssoundwaves.Assnowgrowsolderoriftherehavebeenstrongwindsitcanbecomehardandflat.Thenthesnowssurfacewillhelptosendbacksoundwaves.Snowmaybebeautifulbutitcanbedeadly.ItisresponsibleforthedeathsofhundredsofpeoplE.Manypeopledieintrafficaccidentsonroadscoveredwithsnowandiceorfrombeingseriouslystuckinthewinterstorm.OthersdiefromheartattackscausedbytoomuchphysicalactivityoutinthecolD.Peoplemaynotbeabletoavoidlivinginareaswhereitsnowsoften.Howevertheycanavoidbecomingvictimsofsnowstorms.PeopleshouldstopdrivingandstayathomeuntilthestormhaspasseD.PeoplelivingintheseareasshouldcarryemergencysuppliesintheirvehiclE.Theseincludefoodemergencymedicalsuppliesandextraclothingtostaywarmanddry.72.Mountainsnowfall_____.A.isheavierthanthatintheSouthandtheNorthPolesB.hasneveroccurredneartheEquatoroftheearthC.bringslessofthewatertheworldusesthanraindoesD.providesuptoseventy—fivepercentofwatersuppliesworldwide73.Snowprotectsplantsandwildanimalsfromcoldweatherby_____.A.supplyingmuchmoreairB.limitingheatmovementC.absorbingstrongwindsD.sendingbacksoundwaves74.Snowcanbedeadlymainlybecauseitcan_____.A.causeroadaccidentsB.makepeoplestuckinwinterstormsC.leadtoheartattacksD.makepeoplevictimsofsnowstorms75.Whatwillthetextprobablytellusfollowingthelastparagraph?_.A.HowtodriveduringsnowstormsB.WherewecangetemergencysuppliesC.HowtopreventheartattacksoutincoldD.Whyweshouldstaywarmanddryinwinter

Itisoftennecessarytoreleaseafishthatissetitfreeaftercatchingbecauseitistoosmalloryoujustdon’twanttotakeithometoeat.InsomecasesreleasingfishisagoodmeasurethatwillhelpkeepfishvarietyandbuildtheirpopulationsizE.TheDepartmentofGameandInlandFisheriesDGIFencouragesfishermenwhopracticecatch-and-releasefishingtouseafewsimpleskillswhendoingso.Theadviceprovidedbelowwillhelpmakesurethatthefishyoureleasewillsurvivetobiteagainanotherday.—WhencatchingafishplayitquicklyandkeepthefishinthewaterasmuchaspossiblE.Don’t’useanetinlandingthefishandreleaseitquicklytopreventitfromdying.—Holdthefishgently.Donotputyourfingersinitseyes.Don’twipethescales鱼鳞offthefishbecauseitmightcauseittodevelopadiseaseandreduceitschanceofsurvival.—Removeyourhookquickly.Ifthehookistoodeeporhookedinthestomachcutthelineandleavethehookin.Thehookleftinsidewillcausenoseriousproblemtothefish.—Takegoodcareofthefishbymovingitgentlyinwater.Releasethefishwhenitbeginstostruggleandisabletoswim.—Donotholdfishinabucketorsomeothercontainersandlaterdecidetoreleaseit.Ifyouaregoingtoreleaseafishdosorightaway.Withalittlecareandbyfollowingthesuggestionsgivenaboveyoucangivethereleasedfishabetterchanceofsurvival.64.Peoplesometimessetafishfreeaftercatchingitbecausethey_________A.don’twantittodieB.hopeitwillgrowquicklyC.don’twanttohaveitasfoodD.wanttopracticetheirfishingskills65.Whichofthefollowingwillprobablymakeafishill?A.Takingthehookoffit.B.Removingitsscales.C.Touchingitseyes.D.HoldingitinyourhanD.66.A.properwaytoreleaseafishisto_________.A.moveitinwatertillitcanswimB.takethehookoutofitsstomachC.keepitinabucketforsometimeD.letitstrugglealittleinyourhand67.Whatisthepurposeofthetest?A.Toshowhowtoenjoyfishing.B.Topersuadepeopletofishlessoften.C.ToencouragepeopletosetfishfreE.D.Togiveadviceonhowtoreleasefish.

ThereisnobelievableevidencefortheexistenceofBigfootortoputitanotherwaythere’sreallyquitealotofevidencebutunfortunatelyit’sverypoorquality.That’saproblemforBigfoot-believersbecauseifthecreaturereallydoesexistthenitmustexistinfairlybignumbers.Otherwiseitwouldlongagohavegoneextinct灭绝.NotasingledeadbodyhasbeenfoundsaidJoeNickell.Whilewecan’tproveBigfootdoesn’texist.It’sfairtopointoutthatwecan’tprovethatthefairydoesn’texist.Wecan’tprovethattherearenoleprechauns妖精.TheBigfootmythisfueledbyhumanhopesandfears.Inthatmanneritissimilartoothermyths.Wearehopefulthatwearenotaloneintheuniversesowebelieveinextraterrestrials外人JoeNickellsaiD.Wearefearfuloftheunknownsoweimaginemonsters妖怪.CraigWoolheateroftheTexasBigfootResearchCentreagreedthatthereareawholelotofquestionsandnotmanyanswers.Whatwe’retryingtodoisgetsomeanswersandgatherhardevidencE.Ithinkwe’redealingwithananimalthatisfairlyrareWoolheateraddeD.Soyou’retalkingaboutsomethingthatisprobablyahundredtimesmorerarethanablackbearandcertainlyalotmorerarethanamountainlionandthoseanimalsaren’tseenallthatoften.MeanwhiletheInstituteofTexanCulturesistakingademocratic民主的approach.ThefinalportionoftheexhibitiongivesvisitorsachancetovoteonwhetherornottheybelievetheevidenceisbelievablE.Onthefirstdayyesoutweighedno178to53.64.Whatisthepurposeofthepassage?A.TodiscusswhetherBigfootexists.B.TotellreaderswhereBigfootlives.C.Togivereadersadefiniteanswer.D.Toimprovereaders’interestaboutBigfoot.65.AccordingtoJoeNickell________.A.Bigfoot’sdeadbodiesarefamiliarwithpeopleB.Bigfootistheresultofpeople’shopesandfearsC.leprechaunsdon’texistD.peoplearepolitetoBigfoot66.AccordingtothepassageWoolheater________.A.thinkstherearenoquestionsaboutBigfootB.getshisanswersfromexhibitionsC.believesthevotingisademocraticwayD.seemstothinkBigfootexists67.Fromthelastparagraphwelearnthat________.A.theInstituteofTexanCulturesthinksBigfootexistsB.mostpeopletrusttheInstituteofTexanCulturesC.mostpeoplethinkBigfootexistsaccordingtothevoteD.theInstituteofTexanCulturesisademocraticorganization

Manypeoplehavebeentalkingaboutthewayinwhichtheworldwillcometoanendin2012.EverybodywantstofindoutifDecember212012isthelastdayoftheearth.TherumorhasalreadybeenspreadingforaverylongtimE.TheMayan’spredictionscanaccountfortherumor.Accordingtotherumortheearthwillexperiencedramaticchangesin2012andthechangeswillbedisastroustoallofthelivingcreaturesonearth.ItiswidelyassumedthataPlanetXwillreturntoorbitthesolarsystem.ThereturnofPlanetofPlanetXwillhaveadestructiveeffectonthesolarsystemaswellasonsomeplanetsincludingtheNeptune海王星theJupiter木星andtheearth.PlanetXwillcrossintotheirorbits.There’sapossibilitythatJupiterwillchangeintoalittlesunatthistimesofolkswillbewellplacedtoseetwosunsintheskyin2012.Thesolarflares耀斑thatoccurinal1-yearcyclewillreachtheirhighestpointin2012.Thepowerfulsolarflareswillaffectthemagneticfieldoftheearthandcausedisasters.OnDecember212012thesunandtheearthwilllineupinthesamelineattheequator赤道Thewintersolstice冬至onlyoccursonceevery25800years.Theeventsintheuniversearesignalsthattheworldwillcometoanend.Asaresultofthesolarflareslotsofdisasterswillhappenthatwilldestroythefaceofthewholeearth.ScientistsaremakingtheguessprimarilybasedontheMayanLongCourtCalendar.ManyfilmshavebeenmadeabouttheendoftheworldincludingEndGamebyAlexJonesandEndClockNostradamus2012.Theformerprovidesinsightsaboutthewaytheworldwillbecomeonestate.Aftertheworldgovernmentisinplaceit'sgoingtobeeasytoexterminate80％ofthepeopleintheworld.Therestwillcontinuetolivewithassistancefromadvancedtechnology.NooneknowswhethertheworldwillendonDecember212012Thereisnoclearansweruntilthedayarrives.JustastheMayansclaimsitwillnotbethetimefortheworldtoend.Instead.itwillbethedawnofafleshstart.66.Whatisthepassagemainlyabout?A.Informationaboutend-of-the-worldpredictions.B.Differentopinionsaboutend-of-the-worldpredictions.C.Somedoubtsaboutend-of-the-worldpredictions.D.Destructiveeffectsoftheendoftheworld.67.WhichofthefollowingthingswillNOThappeniftheendoftheworldreallyhappens?A.Humanswillseetwosunsatthesametime.B.Theearthwilllookcompletelydifferent.C.Theearthandthemoonwilllineupinthesameline.D.Thesolarflareswillbecomestrongerthanbefore.68.TheunderlinedwordexterminateinParagraph3probablymeans.A.saveB.killC.helpD.rule69.Whichofthefollowingstatementsistrue?A.InthefilmEndClockNostradamus2012.theworldwillberuledbyonegovernment.B.Accordingtothetexttherumorof2012wasfromtheMayan’spredictions.C.Peoplein2012mayseetwosunsofwhichoneisNeptuneofnowadays.D.In2012.PlanetXwillbreakintheorbitofsolarsystemforthefirsttime.70.Whatistheauthor’sattitudetotherumorthattheworldwillend?A.Optimistic.B.Sad.C.Unconcerned.D.Scared.

Ifyouexhibitpositivecharacteristicssuchashonestyandhelpfulnessthechancesarethatyouwillbethoughtasagood-lookingpersonforanewstudyhasfoundthattheperception认知ofphysicalattractivenessisinfluencedbyaperson'spersonality.ThestudywhichwasledbyGaryW..Lewandowskihasfoundthatpeoplewhoexhibitnegativecharacteristicssuchasunfairnessandrudenessappeartobelessphysicallyattractivetoobservers.Inthestudytheparticipantsviewedphotographsofopposite-sexindividualsandratedthemforattractivenessbeforeandafterbeingprovidedwithinformationabouttheirpersonalities.Afterpersonalityinformationwasreceivedparticipantsalsoratedtheprobabilityofeachindividual'sbecomingafriendandadatingpartner.Informationonpersonalitywasfoundtosignificantlychangetheprobabilityshowingthatcognitive认知的processesmodify修改judgmentsofattractiveness.ThinkingapersonashavingadesirablepersonalitymakesthepersonmoresuitableingeneralasacloserelationshippartnerofanykindsaidLewandowski.Thefindingsshowthatapositivepersonalityleadstogreaterexpectationofbecomingfriendswhichleadstogreaterexpectationofbecomingromanticpartnersandfinallytobeingviewedasmorephysicallyattractive.Thefindingsremainedconsistentregardlessofhowattractivetheindividualwasformerlythoughttobeoroftheparticipants'currentrelationshipstatus.Thisresearchprovidesapositiveoutcomebyremindingpeoplethatpersonalitygoesalongwaytowarddeterminingyourattractiveness;itcanevenchangepeople'simpressionsofhowgood-lookingyouaresaidLewandowski.66.Inthestudytheparticipantswererequiredto_____.A.trytomakefriendswitheachotherB.trytoprovepositivecharactersmakepeoplemoreattractiveC.exhibitnegativecharacterssuchasunfairnessandrudenessD.rateone'sattractivenessbyphotosbeforeandafterknowingherorhispersonality67.What'stheCORRECTorderofhowcognitiveprocessesmodifyjudgmentsofattractiveness?a.findapersonwithapositivepersonalityb.viewthepersonmorephysicallyattractivec.wanttomakefriendswiththepersond.wanttobehis/herromanticpartnerA.a→c→d→bB.d→c→b→aC.c→b→a→dD.a→d→c→b68.WhichofthefollowingisWRONGaccordingtothepassage?A.Theresearchremindspeopletopaymoreattentiontothepersonality.B.Personalitycanchangepeople'simpressionsofone'sappearance.C.Thejudgmentofone'sattractivenessalwaysstaysunchanged.D.Positivepersonalitymayleadtomorefriends.69.Thepassageiswritteninan_____tone.A.subjectiveB.objectiveC.scepticalD.negative70.Whoaretheintendedreadersofthispassage?A.Peoplewithpositivecharacteristics.B.Good-lookingpeople.C.Peoplewithnegativecharacteristics.D.Generalpeople.

Scientificexperimentscansometimesgowrongandwhentheydotheresultsmayrangefromthedisastroustothetroubling.OnesuchexperimenttookplaceinSouthAmericaaboutfiftyyearsago.Whetheritsfinalconsequenceswillcauseseriousdamageornothingmorethanasmalltroublestillremainstobeseen.Thestorybeganin1956whenanAmericanscientistworkinginBrazildecidedtosolvetheproblemofincreasingtheproductivityofthatcountry’sbees.HeimportedaveryactivetypeofAfricanbeefromTanzaniaandmated交配itwiththemoreeasygoingnativevarietytoproduceanewkindofbees.Thenewbeesworkedharderandproducedtwiceasmuchhoney.ItseemedthatProfessorKerrforthatwasthescientist’snamehadatotalsuccessonhishands.Thenthingsbegantogowrong.Forsomereasonasyetunseenbutperhapsasaresultofsomethingintheirenvironmentthenewbeesbegantodevelopextremelyattackingpersonalities.Theybecamebad-temperedandeasytobeangryattackedthenativebeesanddrovethemfromtheirlivingplaces.Butworsewastofollow.Havingtakenoverthecountrysidethenewbees.Withtheirdangerousstings叮begantoattackitsneighbors—catsdogshorseschickensandfinallymanhimself.A.longperiodofterrorbeganthathassofarkilledagreatnumberofanimalsandabout150humanbeings.ThiswouldhavebeenenoughifthebeeshadstayedinBrazil.ButnowtheyareonthemoveheadingnorthwardsincountlessmillionstowardsCentralandNotthAmericaandmovingatthealarmingspeedof200milesayear.Thecountriesthatlieintheirpatharenaturallyworriedbecauseitlooksasifnothingcanbedonetostopthem.56.TheresultsoftheSouthAmericanexperiment____________A.havecausedaserioustroubleB.haveprovedtobewrongC.arenotyetcertainD.arenotimportant57.Theexperimentmentionedinthispassagewasdesignedto_________A.increasetheamountofhoneyinBrazilB.makeBrazilianbeesmoreeasy-goingC.increasethenumberofbeesinBrazilD.makeAfricanbeeslessactive58.Whichofthefollowingmaybethecauseofthenewbees’attackingpersonalities?A.TheirproductionofhoneyB.TheirhardworkC.TheirlivingenvironmentD.Theirbadtemper59.Thelastparagraphimpliesthat_____A.thebeeshavebeendriventoCentralandNorthAmericaB.thebeesmaybringabouttroubleinmorecountriesC.thebeesmustbestoppedfrommovingnorthD.thebeesprefertoliveinBrazil.

SomewonderfullycreativeusesofX-rayshavebeenintheworldofart.Butthemostimpressiveoneistouncoverwhathasbeencoveredup.DetailsunfoldedbyanX-rayofapaintingcan'tbeseenanyotherway.Forexampleinthepastpaintingswereoftenrepairedifsmallpiecesofpaintfelloffthecanvas帆布.Theserepairscannotbeseenjustbylookingatthepainting.IttakesanX-raytodiscoverwheretherepairshavebeenmade.AnX-rayofapaintingisoneofthebestwaystotellifitwascreatedbyafamouspainterorifitisaforgery.IfthereisaquestionastowhetheranoldmasterhaspaintedacertainpaintingornotX-raysaremadeandcomparedtothoseofpaintingsthatareknowntobeoriginal.Ifthebrushstrokes笔迹forexampleareshowntobetotallydifferentthaninotherworkdonebyacertainartistthenthepaintingisprovedtobeafakecopy.SincemodernpaintsareusuallymadefromdifferentmaterialsthanpaintsofhundredsofyearsagotheimagetheyleaveonanX-rayfilmlooksdifferent.ThisisanotherwayX-rayscanbeusedtospotaforgery.Amodemartistwilltrytomakeaforgerylookhundredsofyearsoldbypaintingdirtyvamishonitorbyusingartificialmeanstogetthevarnishtolookcracked.TothenakedeyetheforgerymaylookoldbutwhenacarefulstudyoftheX-rayimageismadethedeceptionisobvious.Itwascommonmanyyearsagoforanartisttofinishapaintingdecideitwasn'tanygoodandpaintacompletelydifferentpictureontopofit.Orartistswouldpaintoverothers'work—itwastheirversionofrecycling.TakinganX-rayistheonlywaytofindoutifthereisapictureunderneaththepictureyouseewithyoureyes.Sometimesmuseumswillbemoreinterestedinthepaintingbeneaththantheoneontopandwillrestoretheolderonebyhavingthetoplayerpainstakinglyremoved.63.Whatisthemainpurposeofthearticle?A.Toprovideinformationtopolicewhoarelookingforstolenart.B.Topersuadeartdealerstocheckforfakecopiesbeforesellingart.C.Toexplainhowmoderntechnologycanbeappliedinuniqueways.D.Tohelpartistsrestoredamagedartworktoitsoriginalappearance.64.Accordingtothepassage.X-raysareusedto______.A.makerepairsonpaintingsinthepastB.identifytheauthenticityofanartworkC.changethematerialsofaforgeryD.removetherecyclablepaints65.InParagraph3theworddeceptionprobablymeans______.A.comparisonB.drawbackC.trickeryD.judgement66.Whichisthebesttitleforthepassage?A.X-rayDetectivesB.CreativeUsesofTechnologyC.ForgeryStudiesD.X-rayPaintingTechniques

Sincethebeginningoftimemanhasbeeninterestedinthemoon.TheRomansdesignedaspecialdaytoshowadmirationandrespecttothemoon.TheycalleditMondayorMondayasweknowittoday.LaterthegreatmindofLeonardodaVincistudiedthemoonanddesignedamachinetocarryahumantothemoon.Leonardosaidthatonedayagreatmachinebirdwouldtakeapersontothemoonandbringgreathonourtothehomewhereitwasborn.FourandahalfcenturieslaterLeonardo’sideawasrealized.ApolloⅡtookthreeAmericansCollinsAldrinandArmstrongtothemoon.Themission任务didfillthewholeworldwithgreatsurpriseasLeonardohadsaiditwould.Numerousmanyessaysarticlesandbookswerewrittenaboutman’sfirstmoonmission.Butperhapsthemostinterestingstorywasonewrittenbeforetheeventover100yearsbefore.In1865FrenchauthorJulesVernewroteastoryaboutthefirstjourneytothemoon.Hisstorywasverysimilartothe1969ApolloⅡmission.Verne’sspacecraftalsocontainedthreemen—twoAmericansandaFrenchman.ThespacecraftwasdescribedasbeingalmostthesamesizeasApolloⅡ.Thelaunch发射siteinVerne’sstorywasalsoinFlorida.ThespacecraftinVerne’sstorywasnamedtheColumbiad.TheApolloⅡcommandshipwascalledColumbia.HisaccountdescriptionofsendingthespacecraftintothespacecouldeasilyhavebeenwrittenabouthowApolloⅡwassentintothespace.Verne’sstorywasthesameastheactualeventinseveralotherrespects方面.ThespeedofVerne’sspacecraftwas36000feetpersecond;Apollo’swas35533feetpersecond.Verne’sspacecrafttook97hourstoreachthemoon;Apollo’stimewas103hours.LikeApollo’sspacemenVerne’sspacementookpicturesofthemoon’ssurfacerelaxedontheirseatscookedwithgasandexperiencedweightlessness.TheytwocamedowninthePacificandwerepickedupbyanAmericanwarship.WhatwerethereasonsforJulesVerne’sextremeaccuracy精确indescribinganevent100yearsormorebeforeitactuallyoccurred?Hebasedhiswritingsonthelawsofphysicsandastronomy.Nineteenth-centuryscienceandthevividclearVerne’simaginationgavepeopleanunbelievablyaccurateexactpredictionofoneofthegreatesteventsofthe20thcentury.72.JulesVernewrotehisstoryofaman’svisittothemoonabout_________.A.100yearsbeforetheApolloⅡmissionB.10yearsbeforetheApolloⅡmissionC.fourandonehalfcenturiesagoD.100yearsago73.Verne’sstoryaboutthefirstjourneytothemoonisverysimilarto_________.A.thesecondUSspacemissionB.theApolloⅡmissionC.LeonardodaVinci’sstoryD.numerousotherbooksonthesamesubject74.ThepassagesuggeststhatJulesVerne_________.A.developedthelawsofphysicsB.basedhiswritingsontheworksofLeonardodaVinciC.wasveryluckyinwhathehaddescribedaboutthefutureD.knewagreatdealaboutthelawsofphysicsandastronomy75.Thepassagemainlydescribes_________.A.therapidprogressofmankindB.Verne’saccuratepredictionofthefutureC.the1969ApolloⅡmoonmissionD.the19thcenturyscienceandtechnology

Couldaneaglecarryoffahumanbaby?EversincethestoryofSinbadtheSailorwe’veheardtalesofhumaninfants幼儿carriedoffbybigbirds.SinbadsothestorygoeswascarriedoffbyaRoC.TheRoc---ahugebird---tookSinbadinhisbeak喙andflewhimofftohisnestinthemountains.SinbadandtheRocwereonlyimaginary.Butwhatabouteagles?Cananeagleliftababy?Twoscientistswantedtofindout.TheyclimbedupintothehighmountainsandcaughtagoldeneaglE.Theytiedaneight---poundweighttoitsneck.Eightpoundstheyfeltwasabouttherightweightforaveryyoungbaby.ThentheylettheeagleloosE.Theeaglecouldn’tgetofftheground!40.ThestoryofSinbadtheSailortoldusthat__________.A.SinbadwasaveryyoungbabyB.thebigbirdenjoyedlivinginthemountainsC.SinbadwasonceliftedbyaverybigbirdD.bigbirdsdidharmtohumanbeings41.Whichofthefollowingistrueaccordingtothepassage?A.Storieshavebeentoldofhumanbeingscarriedoffbybirdsbutwedon’tknowifthesestoriesaretruE.B.TheRocwasarealbirdthatlivedlongago.C.ScientistsaresearchingfortheRocinthemountains.D.TheRocwasmuchbiggerthanthegoldeneaglE.42.Thispassageismainlyabout_______A.eagleB.theliftingpowerofeagleC.twoscientistsD.SinbadtheSailor

SportsshoesthatworkoutwhethertheirownerhasdoneenoughexercisetowarranttimeinfrontofthetelevisionhavebeendevisedintheUK.Theshoes-namedSquareEyes-containanelectronicpressuresensorandatinycomputerchiptorecordhowmanystepsthewearerhastakeninaday.A.wirelesstransmitterpassestheinformationtoareceiverconnectedtoatelevisionandthisdecideshowmucheveningviewingtimethewearerdeservesbasedontheday’sefforts.ThedesignwasinspiredbyadesiretofightagainsttherapidlyballooningwaistlinesamongBritishteenagerssaysGillianSwanwhodevelopedSquareEyesasafinalyeardesignprojectatBrunelUniversityinLondonUK.Welookedatcurrentissuesandchildhoodoverweightreallystoodoutshesays.AndIwantedtotacklethatwithmydesign.Onceachildhasuseduptheirdailyallowancegainedthroughexercisethetelevisionautomaticallyswitchesoff.AndfurthertimeinfrontoftheTVcanonlybeearnedthroughmoresteps.Swancalculatedhowexerciseshouldtranslatetotelevisiontimeusingtherecommendeddailyamountsofboth.Healthexpertssuggestthatachildtake12000stepseachdayandwatchnomorethantwohoursoftelevision.Soevery100stepsrecordedbytheSquareEyesshoesequalspreciselyoneminuteofTVtimE.Existingpedometers计步器normallyclipontoabeltorslipintoapocketandkeepcountofstepsbymeasuringsuddenmovement.Swansaysthesecanbeeasilytrickedintorecordingstepsthroughshaking.Buthershoehasbeenbuilttobeharderforlazyteenagerstocheat.Itispossiblebutitwouldbealotofeffortshesays.Thatwasoneofmymaindesignconsiderations.38.WhichofthefollowingistrueofSquareEyesshoes?A.Theyregulateachild’seveningTVviewingtimE.B.Theydetermineachild’sdailypocketmoney.C.Theyhaveraisedthehotissueofoverweight.D.Theycontaininformationofthereceiver.39.Whatisstressedbyhealthexpertsintheirsuggestion?A.Theexactnumberofstepstobetaken.B.TheprecisenumberofhoursspentonTV.C.TheproperamountofdailyexerciseandTVtimE.D.ThewayofchangingstepsintoTVwatchingtimE.40.Whichofthefollowingwouldbethebesttitleforthetext?A.SmartShoesDecideonTelevisionTimeB.SmartShoesGuaranteeMoreExerciseC.SmartShoesMeasureTimeofExerciseD.SmartShoesStopChildhoodOverweight

Imagineputtingaseedinafreezerwaiting30000yearsandthentakingtheseedoutandplantingit.Doyouthinkaflowerwouldgrow?Amazinglyscientistshavejustmanagedtodosomethingverysimilar.TheyfoundthefruitofanancientplantthathadbeenfrozenundergroundinSiberia—aregioncoveringcentralandeasternRussia—forabout31800years.UsingpiecesofthefruitthescientistsgrewplantsinalaB.Thenewbloomshavedelicatewhitepetals.TheyarealsotheoldestfloweringplantsthatresearchershaveeverrevivedfromadeepfreezE.ThisislikeregeneratingadinosaurfromtissuesofanancienteggsaidUniversityofCaliforniaLosAngelesbiologistJaneShen-Miller.Theplanthasalonghistory.BackwhenmammothsandwoollyrhinoceroseswalkedthelandanArcticgroundsquirrelburiedseedsandfruitsinanundergroundchamberneartheKolymaRiverinnortheasternSiberiA.ThegroundbecamepermafrostalayerofsoilthatstaysfrozenforalongtimE.RecentlyRussianscientistsdugouttheoldsquirrelholeandfoundtheplantremains38metersbelowthesurfacE.Backatthelabtheteamfednutrientstotissuefromthreeofthefruitstogrowshoots.Thenthescientiststransferredtheshootstopotsfilledwithsoil.Theplantsproducedseedsthatcouldbeusedtogrowevenmoreofthem.It’simportantforscientiststoknowthatplanttissuescanstillberevivedafterbeingfrozenforalongtimE.That’sbecausemanyresearchersaretryingtopreservetheseedsofmodernplantsbyfreezingthemandthenstoringthemingiantlockersatvariousspotsaroundtheglobE.OnesuchendeavoranundergroundfacilityinNorwayiscalledtheSvalbardGlobalSeedVault.Itstoreshundredsofthousandsoffrozenseeds.IfaplantevergoesextinctscientistscouldbringitbackbytakingitsseedsfromtheSvalbardorotherstoragelockers.Nooneknowshowlongtheyareabletoliveforbutfreezingisbasicallytheformatformanyplantconservationattemptsnowadays.Shen-MillersaiD.It’sagoodthingthatatleastsomeplantsaretoughenoughtosurvivetheexperiencE.64.Howdidthefruitoriginallygetunderground?A.Itwasplacedtherebyananimal.B.Itwastrappedthereduringtheice-agE.C.Itwasplantedtherebyancientfarmers.D.ItwasburiedthereaftertheearthquakE.65.Whyarescientistsinterestedinthisdiscovery?A.Ithelpsthemlearnhowplantlifehaschangedinthepast30000years.B.Itcanhelpguidefutureeffortstoprotectendangeredplant-lifE.C.Itcanprovidedirectionsforwheretolookforotherancientplants.D.Itprovesthatallplantlifecansurviveforthousandsofyearswhenfrozen.66.Theunderlinedwordtheyinthefinalparagraphrefersto_______.A.plantsB.seedsC.scientistsD.storagelockers67.Thepurposeofthepassageisto_______.A.discussaplantconservationeffortB.introducesomeancientplantsC.outlinesomecausesofglobalwarmingD.describeascientificresearchproject

DailyTelegraph-Anenormousnumberofsardines沙丁鱼havebeenphotographedastheyswamintheformationofadolphin海豚.SteveDeNeefphotographedthefishnearCebuinthePhilippinesgroupingtogethertoprotectthemselvesfromlargeranimals.Hesaid:Gettingthepictureofthedolphinshapewasjustaboutbeingintherightspotattherighttimebutitwouldbetotheirbenefitiftheycouldimitate模仿alargeranimal.DailyMail-Blackgarlic-asweetvarietyofthepopularcookingingredientthatdoesn'tleaveyouwithbadbreath-isgettingreadytohittheUKsupermarketshelves.Blackgarlictastesmuchsweeterthantraditionalgarlicandenjoystwicetheamountofanti-oxidants抗氧化剂andcanlasttwiceaslongontheshelf.BBC-ResearchersintheUnitedStateshavedevelopedthefirstwirelesslycontrolleddevice装置thatcansupplyadrugdirectlyintothebody.Asmallchipisimplantedundertheskin.Itcontainsthemedicinewhichitreleasesatprogrammedtimes.Thedeveloperssaythedevicecouldimprovethelivesofmillionsofpeoplewhotakemedicineforlong-termillnessesandmayonedayfreepatientsfromhavingtoremembertotaketheirmedicineorgivethemselvesinjections.VOA-Globalwarmingcouldmakehumansshorterwarnscientistswhoclaimtohavefoundevidencethatitcausedtheworld'sfirsthorsestoshrinknearly50millionyearsago.Astemperatureswentuptheirsizewentdownandviceversa反之亦然;atonepointtheywereassmallasahousecat.Thescientistssaythatthecurrentwarmingcouldhavethesameeffectonmammalsandevenhumans.59.WhatinformationcanweobtainfromSteveDeNeef'swords?A.Thesardinesswimtogethertoprotectthemselvesfromdolphins.B.Thesardineswillbeinsafetywhenmeetingalargeranimal.C.Hetookthisrarepictureofsardinesprobablybyaccident.D.It'seasytogetthepictureofthedolphinshape.60.Incomparisonwithtraditionalgarlicblackgarlic_____.A.willleaveyoumuchstrongerbreathB.ismorepopularintheUKsupermarketC.canbekeptfreshforamuchlongertimeD.containsthesameamountofanti-oxidants61.Whowillprobablyfindthewirelesslycontrolleddevicemostuseful?A.Janetwhoissufferingabadcold.B.Sophiawhohadhadanoperation.C.Winfredwhohasbeenillforlong.D.Lynettewhohasapoormemory.62.TheunderlinedwordshrinkinParagraph4probablymeans_____.A.becomesmallerB.becomeweakerC.growbiggerD.growstronger

Throughouttheworldboysandgirlsprefertoplaywithdifferenttypesoftoys.Boystypicallyliketoplaywithcarsandtruckswhilegirlstypicallychoosetoplaywithdolls.Whyisthis?A.traditionalsociologicalexplanationisthatboysandgirlsaresocializedandencouragedtoplaywithdifferenttypesoftoysbytheirparentspeersandthesociety.Growingscientificevidencesuggestshoweverthatboys’andgirls’toypreferencesmayhaveabiologicalorigin.In2002GerianneM.AlexanderofTexasA&MUniversityandMelissaHinesofCityUniversityinLondonsurprisedthescientificworldbyshowingthatmonkeysshowedthesamesextypicaltoypreferencesashumans.InthestudyAlexanderandHinesgavetwomasculinetoysaballandapolicecartwofemininetoysasoftdollandacookingpotandtwoneutraltoysapicturebookandastuffeddogto44maleand44femalemonkeys.Theythenassessedthemonkeys’preferenceforeachtoybymeasuringhowmuchtimetheyspentwitheach.Theirdatashowedthatmalemonkeysshowedsignificantlygreaterinterestinthemasculinetoysandthefemalemonkeysshowedsignificantlygreaterinterestinthefemininetoys.Thetwosexesdidnotdifferintheirpreferencefortheneutraltoys.Ifchildren’stoypreferenceswerelargelyformedbygendersocializationastraditionalsociologists’claiminwhichtheirparentsgivegenderappropriatetoystoboysandgirlshowcanthesemaleandfemalemonkeyshavethesamepreferencesasboysandgirlsTheywereneversocializedbyhumansandtheyhadneverseenthesetoysbeforeintheirlives.61.Traditionalsociologistsbelieveboys’andgirls’toypreferences________.A.arepasseddownfromtheirparentsB.arelargelyformedinlaterlifeC.havenothingtodowithgendersocializationD.haveabiologicalorigin62.ThestudybyAlexanderandHinesshowsthatmonkeys________.A.alsohaveasextypicaltoypreferenceB.alsoplaytoysashumansdoC.havenotoypreferencesD.liketoplaydifferenttoysatdifferenttime63.AlexanderandHinescarriedoutthestudyto________.A.findmoreevidencefortraditionalsociologyB.testtheintelligenceofmonkeysC.testwhethermonkeysliketoplaytoysD.findoutwhyboysandgirlspreferdifferenttoys64.Accordingtothestudyifgivenastuffeddog________.A.onlythemalemonkeysshowedinterestB.thefemalemonkeysshowedmoreinterestC.themaleandfemalemonkeysshowedthesameinterestD.neitherthemalenorthefemalemonkeysshowedanyinterest65.Masculinetoysaremainlyintendedfor________.A.boysB.adultC.monkeysD.girls

Welcometoyourfuturelife!Yougetupinthemorningandlookintothemirror.Yourfaceisfirmandyoung-looking.In2035medicaltechnologyisbetterthanever.Manypeopleyouragecouldlivetobe150soat40you’renotoldatall.Andyourparentsjusthadananti-aging抗衰老的treatment.Nowallthreeofyoulookthesameage!YousaytoyourshirtTurnreD.ItchangesfrombluetoreD.In2035smartclothescontainparticles粒子muchsmallerthanthecellsinyourbody.Theparticlescanbeprogrammedtochangeclothes’colororpattern.Youwalkintothekitchen.YoupickupthemilkbutavoicesaysYoushouldn’tdrinkthat!Yourfridgehasreadthechip芯片thatcontainsinformationaboutthemilkanditknowsthemilkisold.In2035everyarticleoffoodinthegrocerystorehassuchachip.It’stimetogotowork.In2035carsdrivethemselves.Justtellyoursmartcarwheretogo.OnthewayyoucancallafriendusingyourjacketsleevE.Suchsmarttechnologyisallaroundyou.Sowillallthesethingscometrue?FornewtechnologytosucceedsaysscientistAndrewZolliithastobesomuchbetterthatitreplaceswhatwehavealready.TheInternetisoneexample—whatwillbethenext?63.Wecanlearnfromthetextthatinthefuture__________.A.clotheswillbeabletochangetheirpatternB.everyonewilllookthesameC.redwillbethemostpopularcolorD.peoplewillnevergetold64.WhatcanbeinferredfromParagraph4?A.Milkwillbeharmfultohealth.B.MoredrinkswillbeavailableforsalE.C.Milkinthegrocerystorewillstayfreshmuchlonger.D.Foodinthegrocerystorewillcarryelectronicinformation.65.Whichofthefollowingismentionedinthetext?A.NothingcanreplacetheInternet.B.FridgeswillknowwhatpeopleneeD.C.Carswillbeabletodriveautomatically.D.JackedsleevescanbeusedasaguidE.66.Whatisthetextmainlyabout?A.FuturetechnologyineverydaylifE.B.Foodandclothingin2035.C.MedicaltreatmentsofthefuturE.D.Thereasonforthesuccessofnewtechnology.

SpaceisadangerousplacE.notonlybecauseofmeteors流星butalsobecauseofraysfromthesunandotherstars.TheAtmosphereagainactsasourprotectiveblanketonearth.Lightgetsthroughandthisisessentialforplantstomakethefoodwhichweeat.HeattoomakesourenvironmentendurablE.Variouskindsofrayscomethroughtheairfromouterspacebutenormousquantitiesofradiationfromthesunarescreenedoff.AssoonasmenleavetheatmospheretheyareexposedtothisradiationbuttheirspacesuitsorthewallsoftheirspacecraftiftheyareinsidedopreventalotofradiationdamagE.RadiationisthegreatestknowndangertoexplorersinspacE.Theunitofradiationiscalledrem.Scientistshavereasontothinkthatamancanputupwithfarmoreradiationthan0.1remwithoutbeingdamaged;thefigureof60remshasbeenagreedon.Thetroubleisthatitisextremelydifficulttobesureaboutradiationdamage-apersonmayfeelperfectlywellbutthecellsofhisorhersexorgansmaybedamagedandthiswillnotbediscovereduntilthebirthofdeformed畸形的childrenorevengrandchildren.MissionsoftheApolloflightshavehadtocrossbeltsofhighradiationandduringtheoutwardandreturnjourneystheApollocrewaccumulatedalargeamountofrems.SofarnodangerousamountsofradiationhavebeenreportedbuttheApollomissionshavebeenquiteshort.Wesimplydonotknowyethowmenaregoingtogetonwhentheyspendweeksandmonthsoutsidetheprotectionoftheatmosphereworkinginaspacelaboratory.Drugsmighthelptodecreasethedamagedonebyradiationbutnoreallyeffectiveoneshavebeenfoundsofar.1.Accordingtothefirstparagraphtheatmosphereisessentialtomaninthat______.A.itprotectshimagainsttheharmfulraysfromspaceB.itprovidessufficientlightforplantgrowthC.itsuppliestheheatnecessaryforhumansurvivalD.itscreensoffthefallingmeteors2.Itcanbeinferredfromthepassagethat________.A.theApollomissionwasverysuccessfulB.protectionfromspaceradiationisnoeasyjobC.astronautswillhavedeformedchildrenorgrandchildrenD.radiationisnotathreattowell-protectedspaceexplorers3.Thebesttitleforthispassagewouldbe________.A.TheAtmosphereandOurEnvironmentB.ResearchonRadiation.C.EffectsofSpaceRadiationD.ImportanceofProtectionAgainstRadiation

Whatifthosenewjeansyou’vejustboughtstarttweeting吱吱地叫aboutyourlocationasyoucrossLondonBridge?Itsoundsfar-fetchedbutit’spossible—ifoneofyourcoatsisequippedwithatinyradio-frequencyidentificationdeviceRFIDyourlocationcouldberevealedwithoutyouknowingaboutit.RFIDsarechipsthatuseradiowavestosenddatatoareader—whichinturncanbeconnectedtotheweB.Thistechnologyisjustoneofthecurrentwaysofallowingphysicalobjectstogoonline—aconceptcalledtheInternetofthingswhichindustryinsidershaveshortenedtoIoT.ThisiswhennotonlyyourPCtabletandsmartphonecanconnecttothewebbutalsoyourcaryourhomeyourbaseballcapandeventhesheepandcowsonafarm.SmartbuildingsandintelligentcarswithassignedIPaddressesarealreadymakingcitiessmarter—andsoonenoughtheentireplanetmayfollow.AtypicalcityofthefutureinafullIoTsituationcouldbeaplacewithsmartcameraseverywhereneurosensors神经监测系统scanningyourbrainforover-activityineverystreetsaysRobvanKranenburgamemberoftheEuropeanCommission’sIoTexpertgroup.ThisvisionmightstillbeyearsoffbutonebyonesmartercitiesarebeginningtocropuparoundourlandscapE.IoTadvocatesclaimthatoverallinterconnectivitywouldallowustolocateandmonitoreverythingeverywhereandatanytimE.Imagineasmartbuildingwhereamanagercanknowhowmanypeopleareinsidejustbywhichroomsarereflectingmotion—forinstanceviamotion-sensitivelightssaysConstantineValhoulifromtheHammersmithGroupastrategyconsultingfirm.Thiscouldhelpsavelivesinanemergency.ButasmoreobjectsgointothedigitalworldthefinelinethatseparatesthebenefitsofincreasinglysmarttechnologyandpossibleprivacyconcernsbecomesreallyblurreD.TheIoTchallengeislikelytogrowbothinscaleandcomplexityassevenbillionhumansareexpectedtocoexistwith70billionmachinesandperhaps70000billion‘smartthings’withnumbersinvadingthelastfencesofpersonallifesaysGeraldSantucciheadofthenetworkedenterpriseandRFIDunitattheEuropeanCommission.Insuchanewcontexttheworriesincrease:towhatextentcanmonitoringofpeoplebeaccepted?WhichprinciplesshouldgovernthedeploymentoftheIoT?72.Thefirstparagraphisusedto________.A.introduceanewkindofjeanstoreadersB.arousereaders’interestintheRFIDC.drawreaders’attentiontothenewjeansD.setanexampleofusingtheRFID73.TheunderlinedphrasecropupinParA.8canbereplacedby__________.A.appearB.cooperateC.developD.change74.WhatcanweknowaboutIoT?A.A.typicalcityinafullIoTsituationhascomeintoreality.B.TheapplicationofIoTmayinvadepeople’sprivacy.C.ThetechnologyofIoThassavedlivesinanemergency.D.IoThasbeenlargelyusedinmanycities.75.Ifthistextcontinueswhatwouldbediscussednext?A.Solutionsofdefendingpeople’sprivacy.B.ThedevelopmentoftheIoT.C.Thecontrolonmonitoring.D.Smarttechnology’sdisadvantages.

Awell-knownmanufacturerofweighingmachinesproducedanewmodel.Themachinehadacomputerinsideitandthiscomputercoulddowonderfulthings:itcouldweighpeopleveryaccurately;itcouldtellthemtheirweightintheirownlanguage;anditcouldtellthemwhattheyshouldeattoreducetheirweight.Themanufacturerdecidedtotryouthismachinebeforehesoldittotheshops.Helookedaroundforagoodplacetoputitandfinallydecidedonanairport.Therewerealwayspeopleatanairportfrommanydifferentcountries.ThefirstpersontousethemachinewasanItalianwoman.Shestoodonthemachineputacoininandwaitedtohearherweight.Themachinetookonlyasecondortwotoweighherdecideonhernationalityandthelanguageshespokeandfigureoutwhatkindoffoodsheshouldeat.GoodmorningmadamitsaidinperfectItalian.Yourweightis72kilosthreemorethanitshouldbeforawomanofyourheightageandnationality.Thisisbecauseyouhavebeeneatingtoomuchspaghetti.Isuggestyoueatmorefruitandvegetables.Pleasehaveaniceday.ThesecondpersontousethemachinewasaChinesegirl.Shestoodonthemachineputacoininandwaitedtohearherweight.GoodmorningMissthemachinesaidinprefectChinesE.Yourweightis38kilosexactlythecorrectweightforyourheightageandnationality.Continuetoeatwhatyouareeating.Pleasehaveaniceday.ThethirdpersontousethemachinewasahugeAustralianwoman.ShewalkeduptothemachineandlookedatitforalongtimE.Atlastshefoundthecouragetostandonthemachineandputacoinin.Themachinespokeimmediately.Goodmorning.Willoneofyouladiespleasegetoff?31.Whatcouldthecomputerdo?A.WeighandtalktopeopleB.Translateinformation.C.Givethemdietpills.D.Makethemloseweight.32.Wheredidthemanufacturerfirstputthemachine?A.IntheshopsB.InmanydifferentcountriesC.InanairportD.Inahotel33.WhatdidthemachinesaytotheItalianwoman?A.Shewasalittletoolight.B.Shewasalittletooheavy.C.Shedislikedspaghetti.D.Shecouldn’tspeakItalian.34.WhatdidthemachinesaytotheChinesewoman?A.SheshouldeatmorE.B.ShecouldspeakChinesE.C.Shewouldhaveaniceday.D.ShewasfinE.35.WhatdidthemachinesuggestabouttheAustralianwoman?A.Shewasunwell.B.Shewascourageous.C.Shewastooheavy.D.Shehaddietedwell.

ResearchledbyUKandAustralianscientistssheds发出newlightontherolethatourancestorsplayedintheextinctionofAustralia'sprehistoricanimals.ThenewstudyprovidesthefirstevidencethatTasmania'sgiantprehistoricanimalswerestilllivingontheislandwhenhumansfirstarriveD.ThefindingssuggestthatthemassextinctionofTasmania'slargeprehistoricanimalswastheresultofhumanhuntingandnotclimatechangeaspreviouslybelieveD.ScientistshavelongarguedoverthereasonsbehindtheworldwidemassextinctionthattookplacetowardstheendofthelasticeagE.Themainculpritsaregenerallythoughttobeclimatechangeorsomeformofhumanimpact.PeopleonlyarrivedinTasmaniaaround43000yearsagowhentheislandbecametemporarilyconnectedbyalandbridgetomainlandAustraliA.NoneofTasmania'sgiantanimalsknownasmegafaunawereknowntohavesurviveduntilthistimE.Thisappearedtoclearhumansofanyinvolvementinthedisappearanceoftheisland'slargemegafaunA.ThisnewinternationalstudyreportsthediscoveryofgiantkangaroossurvivinginTasmaniauntilpeoplearrivedplacinghumansbackonthelistoflikelyculpritsfortheextinctionofthemegafaunA.UsingthelatesttechniquestheteamwereabletodeterminetheageofthefossilizedremainsofthemegafaunamoreaccuratelythaneverbeforE.Theresultsshowedthatsomeoftheseanimalssurviveduntilatleast41000yearsago一muchlaterthanpreviouslythoughtandupto2000yearsafterthefirsthumansettlersarriveD.AsclimateinTasmaniawasnotchangingdramaticallyatthistimetheresearchersarguethatthisisevidenceofthesespeciesbeingdriventoextinctionthroughover-huntingbyhumans.58.TheunderlinedwordculpritsinParagraph3probablymeans______.A.resultsB.signalsC.theoriesD.reasons59.Thethirdparagraphmainlytellsus________.A.theconclusionofpreviousstudiesB.whenandhowhumansarrivedinTasmaniaC.thedisappearanceofTasmania'sgiantanimalsD.thereasonsfortheworldwidemassextinction60.ItcanbeinferredfromtheresultsofthenewstudythatafterhumansarrivedinTasmania_________.A.theykilledalotofgiantanimalsB.giantanimalsbegantodisappearC.theybuiltabridgetothemainlandD.climatebegantochangedramatically61.Thebesttitleforthepassagewouldbe________.A.GiantprehistoricanimalsfoundinTasmaniaB.ClimatechangeandhumanactivitiesC.Humansinvolvedinprehistoricanimals’extinctionD.Rolesofclimatechangeandhumanactivities

Animalscanmovefromplacetoplacebutplantscannot.Whenananimalisunderattackitcanrunawayorfightback.Plantscertainlycannotrunawayandtheylackteethandclaws.Butplantscandefendthemselvesbyusingbothphysicalandchemicalmeans.Someplantshavetheirownwaystokeepanimalsaway.Forexampletheleavesofthehollyplanthavesharpspines刺thatdiscouragegrass-eatinganimals.Hollyleavesonlowerbrancheshavemorespinesthanleavesonupperbranches.Thisisbecausethelowerleavesareeasierformostanimalstoreach.Someplantssuchastheoaktreehavethickandhardleavesthataredifficultforanimalstoeat.Somegrassesmaycontainasandymaterial;eatingsuchgrasseswearsdowntheanimal'steeth.Manyplantsalsohavechemicaldefenses.Someplantsproducechemicalsthattastebitterorcauseanunpleasantreaction.Someplantsmayfightagainstanattackbyincreasingtheproductionofthesechemicals.Whenacaterpillar毛虫bitesatobaccoleaftheleafproducesachemicalmessenger.ThismessengersendstotherootstheinformationtoproducemorenicotinE.Thehigherlevelsofnicotinediscouragethecaterpillar.Manyplantsdependonbothphysicalandchemicaldefenses.A.certainplantinChinaforinstancehasprickly多刺的leavesandeachpricklecontainspoisonousvenom毒液A.singleexperiencewiththiskindofplantwillteachananimaltostayawayfromitinthefuturE.57.Thehollyplanthasmorespinesonthelowerleavesbecausemostanimals________.A.arenottallenoughB.likethelowerleavesonlyC.cangetthelowerleaveseasilyD.arenotcleverenough58.Todefendthemselvesoaktreesuse________.A.chemicalmeansB.sandymaterialsC.bitterchemicalsD.physicalmeans59.Howdoestobaccoprotectitselfagainstanattackfromacaterpillar?A.ItsrootsincreasetheproductionofnicotinewhenitisattackedB.Itsrootssendamessengertodiscouragethecaterpillar.C.Itsleavesfightagainsttheattackbyphysicalmeans.D.Itsleavesproducepoisonoussandtodrivethecaterpillaraway.60.Whatwouldbethebesttitleforthispassage?A.PlantsandAnimalsB.HowPlantsDefendThemselvesC.AttacksandDefensesD.HowAnimalsEatPlantLeaves

SportsshoesthatworkoutwhethertheirownerhasdoneenoughexercisetowarranttimeinfrontofthetelevisionhavebeendevisedintheUK.Theshoes-namedSquareEyes-containanelectronicpressuresensorandatinycomputerchiptorecordhowmanystepsthewearerhastakeninaday.A.wirelesstransmitterpassestheinformationtoareceiverconnectedtoatelevisionandthisdecideshowmucheveningviewingtimethewearerdeservesbasedontheday’sefforts.ThedesignwasinspiredbyadesiretofightagainsttherapidlyballooningwaistlinesamongBritishteenagerssaysGillianSwanwhodevelopedSquareEyesasafinalyeardesignprojectatBrunelUniversityinLondonUK.Welookedatcurrentissuesandchildhoodoverweightreallystoodoutshesays.AndIwantedtotacklethatwithmydesign.Onceachildhasuseduptheirdailyallowancegainedthroughexercisethetelevisionautomaticallyswitchesoff.AndfurthertimeinfrontoftheTVcanonlybeearnedthroughmoresteps.Swancalculatedhowexerciseshouldtranslatetotelevisiontimeusingtherecommendeddailyamountsofboth.Healthexpertssuggestthatachildtake12000stepseachdayandwatchnomorethantwohoursoftelevision.Soevery100stepsrecordedbytheSquareEyesshoesequalspreciselyoneminuteofTVtimE.Existingpedometers计步器normallyclipontoabeltorslipintoapocketandkeepcountofstepsbymeasuringsuddenmovement.Swansaysthesecanbeeasilytrickedintorecordingstepsthroughshaking.Buthershoehasbeenbuilttobeharderforlazyteenagerstocheat.Itispossiblebutitwouldbealotofeffortshesays.Thatwasoneofmymaindesignconsiderations.38.WhichofthefollowingistrueofSquareEyesshoes?A.Theyregulateachild’seveningTVviewingtimE.B.Theydetermineachild’sdailypocketmoney.C.Theyhaveraisedthehotissueofoverweight.D.Theycontaininformationofthereceiver.39.Whatisstressedbyhealthexpertsintheirsuggestion?A.Theexactnumberofstepstobetaken.B.TheprecisenumberofhoursspentonTV.C.TheproperamountofdailyexerciseandTVtimE.D.ThewayofchangingstepsintoTVwatchingtimE.40.Whichofthefollowingwouldbethebesttitleforthetext?A.SmartShoesDecideonTelevisionTimeB.SmartShoesGuaranteeMoreExerciseC.SmartShoesMeasureTimeofExerciseD.SmartShoesStopChildhoodOverweight

Haveyoueversuddenlyfeltthatsomeoneyouknewwasintrouble—andwashe?Haveyoueverdreamedofsomethingthatcametruelater?MaybeyouhaveESP超感觉知觉.ESPstandsforExtrasensoryPerception.ItmaybecalledasixthsensE.Itseemstoletpeopleknowabouteventsbeforetheyhappenoreventsthatarehappeningsomedistanceaway.Here’sanexamplE.A.womanwasironingclothes.SuddenlyshescreamedMyfatherisdead!Isawhimsittinginthechair!JustthenatelegramcamE.Thewoman’sfatherdiedofaheartattack.Hediedsittinginachair.TherearethousandsofstorieslikethisoneonrecorD.Scientistsarestudyingthemtofindoutwhat’sbehindthesestrangementalmessages.Here’sanotherexample—oneofhundredsofdreamsthathavecometruE.Amandreamedhewaswalkingalongaroadwhenahorseandcarriagecameby.ThedriversaidThere’sroomforonemorE.Themanfeltthedriverseemeddeadsoheranaway.ThenextdaywhenthemanwasgettingonacrowdedbusthebusdriversaidThere’sroomforonemorE.Thenthemansawthatthedriver’sfacewasthesamefacehehadseeninthedream.Hewouldn’tgetonthebus.Asthebusdroveoffitcrashedandburstintoflames.Everyonewaskilled!Somepeoplesaystorieslikethesearecoincidences.OthersincludingsomescientistssaythatESPisreal.FromstudiesofESPwemaysomedaylearnmoreaboutthehumanminD.59.Accordingtothepassagetheauthorbelievesthatthesixthsenseis.A.inexistenceB.imaginativeC.notrealD.impossible60.ESPletspeopleknow________.A.abouteventsbeforetheyhappenB.abouteventsaftertheyhappenC.abouteventsthatarehappeningsomedistanceawayD.AandC.61.BystudyingESPscientistsmaygetto.A.learnhowpeopletellliesB.knowmoreabouthumandreamsC.knowmoreabouthumanmindD.learnhowstrangethingshappen62.Inthelastparagraphtheunderlinedwordcoincidencesprobablymeans.A.thingsthatmaynothappenB.thingsthathappeninadreamC.thingsthatmusthappenD.thingsthathappenbyaccident63.Thisarticleismainlyabout.A.thehumandreamB.thesixthsenseC.thehumanmindD.acrowdedbus

AblindbabyisdoublyhandicappeD.Notonlyisitunabletoseebutbecauseitcannotreceivethevisualstimulus刺激fromitsenvironmentthatasightedchilddoesitislikelytobeslowinintellectualdevelopment.Nowtheten-montholdsonofDr.andMrs.DennisDaughtersisthesubjectofanunusualpsychologicalexperimentdesignedtopreventalag滞后inthelearningprocess.Withtheaidofasonar-typeelectronicthathewearsonhisheadinfant婴儿Dennisislearningtoidentifythepeopleandobjectsintheworldaroundhimbymeansofechoes回声.ThedeviceisanimprovementoftheSonicguideaninstrumentproducedbyTelesensorySystemsInC.ofPaloAltoCalifandusedbyblindadultsinadditiontoasmartorguidedog.AsadaptedforDennisitconsistsofabattery-poweredsystemaboutthesizeofahalfdollarthatisonaheadgear.A.transmittersendsoutanultrasonic超声的pulsethatcreatesan80degreeconeofsoundat6feet.Echoesfromobjectswithintheconeareperceivedfeltassoundsthatvaryinpitch音调andvolume音量withthesizeanddistanceoftheobject.Thecloseranobjectisthelowerthepitchandthelargertheobjectthelouderthesignal.Hardsurfacesproduceasharppingwhilesoftonessendbacksignalswithaslightlyfuzzyquality.AnobjectslightlytotherightofDenny’ssendsbackaloudersoundtohisrightearthantotheleft.Thusbysimplymovinghisheadrightandleftandupanddownhecannotonlylocateanobjectbutalsogetsomenotionofitsshapeandsizethankstothevaryingqualitiesofsoundsreachinghisearsastheconeofultrasound超声波passesitsedges.Dennislikestousethedevicetoplayakindofpeek-a-boowithhismother.Standingonherkneeandfacingherdirectlyhereceivesastrongsignalinbothears.Byturninghisheadawayhemakesherseemtodisappear.FromthefirsttimeheworeitsaysMrs.DaughtersitwaslikealightgoingoninhisheaD.WhatremainstobedeterminedishowwellthedevicewillhelpDenniscopewithhissurroundingsashebeginstowalkandventurefurtherintohisenvironment.MeanwhileTelesensoryIncisworkingonthedevelopmentofsonar声纳devicewithsomewhatthesamesensitivityasDennis’sforusebyschool-agechildren.66.Dr.andMrs.Daughters’researchisdirectedto______________.A.helpingtheblindtoseeandlearnaswellasothersB.benefitingthelearningprocessofblindchildrenC.solvingblindchildren’spsychologicalproblemsD.findingouthowchildrendevelopintellectually67.InfantDennisbecomesthesubjectoftheexperimentmostprobablybecause_____________.A.healreadylagsbehindthesightedchildrenB.heleadsalifeasnormalasanyotherchildrenC.heisattheearlystageofthelearningprocessD.hehastheaidofasonar-typeelectronicdevice68.WhatcanwelearnaboutinfantDennis’device?A.Itsthefirstdesignwasdesignedforblindadults.B.Itsbatteryisassmallasahalf-dollarcoin.C.Itisfunctionallysimilartoasaneandguidedog.D.IthasbeenimprovedbyTelesensorySystemsInC.69.Inthethirdparagraphitsedgerefersto___________.A.theedgeofanobjectB.theedgeofthedeviceC.theboundaryofDennis’movementD.theboundaryofthesoundpitch.70.WhatisTelesensorySystemsInC.mostlikelytothinkaboutinfantDennis’device?A.IthadbetterbeusedbyblindchildrenfromschoolagE.B.Itneedsimprovingforuseinacomplicatedenvironment.C.Itmaynotbesosuitablefortheblindadults.D.Itbenefitsblindchildrenintermsoflearning.

AstudypublishedinSeptembersuggeststhereisasurprisingwaytogetpeopletoavoidunhealthyfoods:changetheirmemories.ScientistElizabethLoftusoftheUniversityofCaliforniaatIrvineaskedvolunteerstoanswersomequestionsontheirpersonalitiesandfendexperiences.OneweeklaterLoftussaysWetoldthosepeoplewe’dfedtheiranswersintooursmartcomputeranditcameupwithanaccountoftheirearlychildhoodexperiences.Someaccountsincludedonekeyadditionaldetail:Yougotsickaftereatingstrawberryice-cream.Theresearchersthenchangedthisdetailintoamanufactured人造的memorythroughleadingquestions—Whowereyouwith?Howdidyoufeel?Bytheendofthestudyupto41%ofthosegivenafalsememorybelievedstrawberryice-creamoncemadethemsickandmanysaidthey’davoideatingit.WhenLoftuspublishedherfindingsshestartedgettingcallsfrompeoplebegginghertomakethemrememberhatingchocolateorFrenchfries.Unfortunatelyit’snotthateasy.Falsememoriesappeartoworkonlyforfoodsyoudon’teatonaregularbasis.Butmostimportantitislikelythatfalsememoriescanbeimplanted灌输onlyinpeoplewhoareunawareofthementalcontrol.Andlyingtoapatientisimmoralevenifadoctorbelievesit’sforthepatient’sbenefit.Loftussaysthere’snothingtostopparentsfromtryingitwiththeiroverweightchildren.Isaywakeup—parentshavebeenlyingaboutFatherChristmasforyearsandnobodyseemstominD.Iftheycanpreventdiseasescausedbyfatnessandalltheotherproblemsthatcomewiththatyoumightthinkthat’samoremoralliE.Decidethatforyourself.64.WhydidLoftusaskthevolunteerstoanswersomequestions?A.Toimprovehercomputerprogram.B.TofindouttheirattitudestowardsfooD.C.Tofindoutdetailsshecanmakeuseof.D.Topredictwhatfoodthey’lllikeinthefuturE.65.WhatdidLoftusfindoutfromherresearch?A.Peoplebelievewhatthecomputertellsthem.B.PeoplecanbeledtobelieveinsomethingfalsE.C.Peopletendtoforgettheirchildhoodexperiences.D.Peoplearenotalwaysawareoftheirpersonalities.66.AccordingtothestudypeoplemaystophavingacertainfoodiftheyA.learnitisharmfulforhealthB.lietothemselvesthattheydon’twantitC.arewillingtoletdoctorscontroltheirmindsD.thinktheyoncehadabadexperienceofeatingit.67.Whatisthebiggestconcernwiththemethod?A.Whetheritismoral.B.Whoitisbestfor.C.WhenitiseffectivE.D.HowitshouldbeuseD.

Whydomendieearlierthanwomen?Thelatestresearchmakesitknownthatthereasoncouldbethatmen’sheartsgointorapiddeclinewhentheyreachmiddleagE.Thelargeststudyoftheeffectsofageingonthehearthasfoundthatwomen’slongevitymaybelinkedtothefactthattheirheartsdonotlosetheirpumpingpowerwithagE.Wehavefoundthatthepowerofthemaleheartfallsby20-25percentbetween18and70yearsofagesaidtheheadofthestudyDavidGoldspinkofLiverpoolJohnMooresUniversityintheUK.Withinthehearttherearemillionsofcellsthatenableittobeat.Betweentheageof20and70one-thirdofthosecellsdieandarenotreplacedinmensaidGoldspink.Thisispartoftheageingprocess.Whatsurprisesscientistsisthatthefemaleheartseesverylittlelossofthesecells.A.healthy70-year-oldwoman’sheartcouldperformalmostaswellasa20-year-oldone’s.Thisgender性别differencemightjustexplainwhywomenlivelongerthanmensaidGoldspink.Theystudiedmorethan250healthymenandwomenbetweentheagesof18and80focusingonhealthypersonstoremovetheconfusinginfluenceofdiseasE.TheteamhasyettofindwhyageingtakesagreaterlossonthemaleheartsaidGoldspink.ThegoodnewsisthatmencanimprovethehealthoftheirheartwithregularexercisE.GoldspinkstressedthatwomenalsoneedregularexercisetopreventtheirlegmusclesbecomingsmallerandweakerastheyagE.51.Theunderlinedwordlongevityinthesecondparagraphprobablyrefersto________.A.healthB..longlifeC..ageingD..effect52.Thetextmainlytalksabout________.A.men’sheartcellsB.women’sageingprocessC.thegenderdifferenceD.heartsandlonglife53.AccordingtothetexttheUKscientistshaveknownthat________.A.womenhavemorecellsthanmenwhentheyarebornB.womencanreplacethecellsthatenablethehearttobeatC.thefemaleheartlosesfewofthecellswithageD.womenneverlosetheirpumpingpowerwithage

Globalwarmingmayormaynotbethegreatenvironmentalcrisisofthe21stcenturybut-regardlessofwhetheritisorisn't-wewon'tdomuchaboutit.AlGorecallsglobalwarminganinconvenienttruthasifmerelyrecognizingitcouldputusonapathtoasolution.Buttherealtruthisthatwedon'tknowenoughtorelieveglobalwarmingand-withoutmajortechnologicalbreakthroughs-wecan'tdomuchaboutit.From2003to2050theworld'spopulationisprojectedtogrowfrom6.4billionto9.1billiona42%increasE.IfenergyuseperpersonandtechnologyremainthesametotalenergyuseandgreenhousegasemissionsmainlyC02willbe42%higherin2050.Butthat'stoolowbecausesocietiesthatgrowricherusemoreenergy.Weneedeconomicgrowthunlesswecondemntheworld'spoortotheirpresentpovertyandfreezeeveryoneelse'slivingstandards.Withmodestgrowthenergyuseandgreenhouseemissionsmorethandoubleby2050.Nogovernmentwilladoptstrictrestrictionsoneconomicgrowthandpersonalfreedomlimitsonelectricityusagedrivingandtravelthatmightcutbackglobalwarming.Stillpoliticianswanttoshowthey'redoingsomething.ConsidertheKyotoProtocol京都议定书.Itallowedcountriesthatjoinedtopunishthosethatdidn't.Butithasn'treducedC02emissionsupabout25%since1990andmanysignatories签字国didn'tadopttoughenoughpoliciestohittheir2008-2012targets.Thepracticalconclusionisthatifglobalwarmingisapotentialdisastertheonlysolutionisnewtechnology.Onlyanaggressiveresearchanddevelopmentprogrammightfindwaysofbreakingourdependenceonfossilfuelsordealingwithit.Thetroublewiththeglobalwarmingdebateisthatithasbecomeamoralproblemwhenit'sreallyanengineeringonE.Theinconvenienttruthisthatifwedon’tsolvetheengineeringproblemwe’rehelpless.47.Accordingtotheauthor'sunderstandingwhatisAlGore'sviewonglobalwarming?A.Itisarealitybothpeopleandpoliticiansareunawareof.B.Itisaphenomenonthatcausesusmanyinconveniences.C.ItisaproblemthatcanbesolvedonceitisrecognizeD.D.Itisanareaweactuallyhavelittleknowledgeabout.48.Greenhouseemissionswillmorethandoubleby2050becauseof___________A.economicgrowthB.wastefuluseofenergyC.thewideninggapbetweentherichandpoorD.therapidadvancesofscienceandtechnology49.TheauthorbelievesthatsincethesigningoftheKyotoProtocol__________A.politicianshavestartedtodosomethingtobetterthesituationB.fewnationshaveadoptedrealtoughmeasurestolimitenergyuseC.reductionsinenergyconsumptionhavegreatlycutbackglobalwarmingD.internationalcooperationhascontributedtosolvingenvironmentalproblems50.Whatisthemessagetheauthorintendstoconvey?A.GlobalwarmingismoreofamoralissuethanapracticalonE.B.Thefinalsolutiontoglobalarmingliesinnewtechnology.C.Thedebateoverglobalwarmingwillleadtotechnologicalbreakthroughs.D.Peoplehavetogiveupcertainmaterialcomfortstostopglobalwarming.

ThePepperedMothakindofinsect昆虫isfoundinEnglanD.Itislightbrownincolourandlikestosettle栖息ontreeswhicharealsolightbrown.Thismakesthemothdifficulttobeseenandit’slesspossibleforthebirdstonoticeandeatit.Butwiththedevelopmentofindustry工业smokefromfactoriesbegantoreachthetreeswherethemothsettleD.Itmadethetreesblacker.Thensomethingverystrangetookplace:inindustrialareasthePepperedMothbegantochangecolour.Itbecamedarkeraswell.Thoughthechangetookseveralyearssomescientistssoonnoticethatnewly-bornmothswerealittledarkerthanusual.AscientistnamedKettlewelldecidedtomakeacarefulstudyofthisphenomenon现象.Hemarked标识someofthelightmothsandsomeofthedarkeronesandsetthemfreeinthewoodsnearBerminghamanindustrialcity.Laterherecaptured重新捕获asmanyasthemarkedmothsaspossiblE.Theresultswereasfollows.lightmothsdarkermothsMothssetfree201601mothsrecaptured3416%20634%Kettlewell'sresearch研究wasdoneintheearly1950s.SoonafterwardsBritainintroducednewlawstoreducesmokeandfactorypollution.Thenumberofthelightmothswouldbeontheriseonlyiftheairbecamecleaneragain.73.ThePepperedMothbegantochangeitscolourinindustrialareasbecause.A.itwouldlookmorebeautifulB.itcouldbelikethecolourofitsliving-placeC.ithadtokeepthebalanceofnatureD.itwasusuallydarkbrown74.FromtheresultsofKettlewell'sresearchwecanseethat.A.manymoreofthelightmothswerekilledoreatenB.morethanone-fifthofthelightmothswerenotkilledC.MorethanhalfofthedarkmothswerekeptsafeD.moredarkmothswerekilledinindustrialareas75.Astheairbecamecleaner.A.thenumberofthelightmothsbecamelargerB.thetotalnumberofthelightmothsremainedunchangedC.thereweremoreofthedarkermothsandfewerofthelightonesD.thedarkermothschangedintothelightonessuddenly

A.desertisabeautifullandofsilenceandspacE.Thesunshinesthewindblowsandtimeandspaceseemendless.Nothingissoft.Thesandandrocksarehardandmanyoftheplantsevenhavehardneedlesinsteadofleaves.Thesizeandlocation分布oftheworld’sdesertsarealwayschanging.Overmillionsofyearsasclimateschangeandmountainsrisenewdryandwetareasdevelop.Butwithinthelast100yearsdesertshavebeengrowingatafrighteningspeeD.Thisispartlybecauseofnaturalchangesbutthegreatestmakersarehumans.Humanscanmakedesertsbuthumanscanalsopreventtheirgrowth.AlgeriaMauritaniaisplantingasimilarwallaroundNouakchottthecapital.Iranputsathincoveringofpetroleum石油onsandyareasandplantstrees.Theoilkeepsthewaterandsmalltreesinthelandandmenonmotorcycles摩托车keepthesheepandgoatsaway.TheUSSRandIndiaarebuildinglongcanalstobringwatertodesertareas.40.Inthispassageneedlesrefersto_______.A.smallthinpiecesofsteel.B.longthinpiecesofbranches.C.smallpointedgrowthonthestem茎ofaplant.D.smallthinpiecesofsticks.41.WhichofthefollowingisNOTtrue?A.Thegreatestdesertmakersarehumans.B.Therearen’tanylivingthingsinthedeserts.C.Desertshavebeengrowingquickly.D.Thesizeofthedesertsisalwayschanging.42.WecanguessthatMauritaniaandAlgeriabelongto_______.A.AsiancountriesB.AmericancountriesC.EuropeancountiesD.Africancountries43.ChoosethesentencewhichbestgivesthemainideaofthepassagE.A.Thedesertsoftheworldarealwayschanging.B.Manistotakemeasurestocontrolthegrowthoftheworld’sdeserts.C.DesertsarelandsofsilenceandspacE.D.Desertshavegrownatafastpaceinthepast10years.

TheSouthPoleisaparticularplaceontheearth.Whenpeoplestandatthetopofitlookingaroundtheywillfindalldirectionsfacetonorth.Nomatterhowtheymaketheirfirststepinwhichdirectiontheywillalwayswalktowardsthenorth.That’stosayonlynorthandsouthexistthereneithereastnorwestexists.AtthetopoftheSouthPoleanyclockorwatchkeepsgoodtimebecauseallmeridians子午线jointherE.AllkindsoflocaltimearecompletelysuitabletherE.Itisevendifficulttodistinguish区别NewYear’sEvefromNewYear’sDay.Theexplorersandscientistsfromdifferentcountriesalwaysfixthetimeaccordingtotheirown.ThereforethetimebytheirwatcheswasdifferentwhenthepeoplewithdifferentnationalitygatheredtherE.TheWinterSolstice冬至日isanimportantfestivalattheSouthPolE.ItisalwaysonJune21or22.ThisdayiscalledMidwinterFestivalonwhichthedaytimeistheshortestinayearandthenightthelongest.AllpeopleattheSouthPoleextendgreetingstoeachotherandpresentgiftstoeachother.Theyusuallygiveallkindsofcelebrations.Fromthatdayonthedaytimewillgetlongerdaybyday.60.AtthetopoftheSouthPoleyourwatchwill________.A.keepgoodtimeB.befiveminutesfastC.stopD.betenminutesslow61.Thetimebythewatchesoftheexplorersandscientistsfromdifferentcountriesis________.A.alwaysthesameB.notalwaysdifferentC.alwaysslowD.notalwaysthesame62.TheWinterSolsticeisanimportantfestival________.A.intheworldB.attheNorthPoleC.attheSouthPoleD.inChina63.OntheWinterSolstice________istheshortestinayear.A.thenightB.thenoonC.themorningD.thedaytime

WaterPollutionandManWaterpollutionaffectsman’shealthrecreationaluseofwaterandsenseofbeauty.Thespreadofwater-carrieddiseaseisofgreatconcern.Inhighlydevelopedcountriesinparticularemphasishaschangedfromconcernoverbacterialdiseasetoconcernoverwater-carriedviral病毒性的diseasE.Viralhepatitis肝炎forexamplehasbeenfoundtooccurmorefrequentlyincitieswhosewatersupplieshavecomparativelyhighlevelsofwaterimpurity.Poisonouschemicalsfoundinstreamsthatareultimatelyusedforwatersuppliesalsocreateanimportantpublichealthproblem.Itisclearthatpoisonouschemicalsmustbeexcludedfromwaterbutmoreandmorechemicalsfromnewpesticides杀虫剂fertilizersandothernewproductshavebeenfoundinwater.Sincethepublichealthimportanceofthesechemicalsisnotyetfullyknowntheyareofincreasingconcern.Thechemicalsfromfertilizersarealsofindingtheirwayintowatersuppliesfrompollution.Asman’sdesireforwater-basedrecreationincreasesgreaterdemandsareplacedonthequalityofthewater.Thewatermustnotonlybutbeattractiveinappearancebutalsomeetcertainotherconditions.Sportssuchasswimminginvolvedirectcontactwithwaterandsowaterstandardsareraisedhigher.Therangeofwaterqualitynecessaryforindustrialprocessesvariesgreatlywiththeintendeduseofthewater.Thewaterusedinsteelmillsfoeexamplemusthavealowerchloride氧化物levelthanthatacceptedfordrinkingwater.Coolingwatercanoftenbeofcomparativelylowsanitary卫生的quality.A.largepartofthewaterusedinthepaper-makingindustryanbeofrelativelylowqualityinsomeaspectsbutmustcontainlittleironandcarbondioxidE.1.Thechemicalsfrompesticidesandfertilizersfoundinwaterareofincreasingconcernbecause_________.A.theirimportancetoman’shealthhasnotbeencompletelyknownB.theymaycausegroundwaterpollutiontheycanfindtheirwayintowatersuppliesforfarmerstheyareimportantfactorscontributingtothespreadofdisease2.Accordingtothepassagewater-basedrecreationdemandsthat_________.ThewatercontainahigherlevelofoxygenThewatercontainlittleironandcarbondioxideThewaterbeattractiveandofhighqualityThewaterstandardsbeappropriateforallsports3.Inthelastparagraphtheauthormentionsallofthefollowinitsfulltext?_________waterqualitynecessaryforsteelmillsB.softwaterandhardwaterforindustrialcoolingwateroflowsanitaryqualityD.waterstandardsforpeoplemills4.Asthepassageisnotcompletewhatdoyouthinkwouldfollowinitsfulltext?_________TherelationshipbetweencarbondioxideandpeoplemakingWaterpollution’sdirecteconomiceffectsonman.Examplesofcontinuedwaterpollution.Man’sviewsonwaterpollutionintermsofbeautyvalues.

AstherailroadsandthehighwaysshapedtheAmericanWestinthepastcenturiesanewelectricalgenerating发电andtransmission输送systemforthe21stcenturywillleavealastingmarkontheWestforbetterorworsE.Muchoftherealsignificanceofrailroadsandhighwaysisnotintheirdirectphysicaleffectonthescenerybutinthewaysthattheyaffectthesurroundingcommunity.ThesameistrueofbigsolarplantsandthepowerlinesthatwillbelaiddowntomoveelectricityarounD.The19thcenturysawlandgrants政府拨地offeredtorailroadcompaniestobuildthetranscontinentalrailroadsleavingpubliclandinbetweenprivatelyownedlanD.InmuchoftheWestsomeoftherailroadsectionsweredevelopedwhileothersremainedundevelopedandinbothcasesthelandownershiphaspresenteduniquechallengestolandmanagement.WiththecompletionoftheinterstatehighwaysystemmanyofthesmalltownswhichsprangupasrailwaystopsanddevelopedwellhavelosttheirlifebloodanddieD.BigsolarplantsandtheirpowerlineswillalsohaveeffectsfarbeyondtheirdirectfootprintintheWest.Thisisnotanargumentagainstbuildingthem.Weneedalternativeenergybadlyandtoreallytakeadvantageofitweneedtobeabletomoveelectricityaroundfarmorereadilythanwecannow.Sotrade-offswillhavetobemadE.SomescenicspotswillbesacrificeD.Somespecies物种willbeforcedtomoveorwillbecarefullymovedtospecialaccommodations.Dealswillbestrucktoreducetheimmediateeffects.Thelastingeffectsofthesetrade-offsareanothermatter.The21stcenturydevelopmentoftheAmericanWestasanidealplaceforalternativeenergyisgoingtothrowoffalotofpowerandmoneyintheregion.TherearechancesforthatpowerandmoneytodoalotofgooD.Butitisjustaslikelythattheywillbespentwastefullyandwillleavenewproblemsbehindjustliketherailroadsandthehighways.Themoneysetasideinnegotiatedtrade-offsandtheinstitutionsthatcontrolitwillshapetheWestfarbeyondtheimmediatefootprintofpowerplantsandtransmissionlines.Solet’sremembertheeffectsoftherailroadsandthehighwaysasweconstructthesenewpowerplantsintheWest.68.Whatwastheproblemcausedbytheconstructionoftherailways?A.SmalltownsalongtherailwaysbecameabandoneD.B.LandintheWestwashardtomanagE.C.SomerailroadstopsremainedunderuseD.D.Landgrantswentintoprivatehands.69.Whatisthemajorconcerninthedevelopmentofalternativeenergyaccordingtothelasttwoparagraphs?A.Theuseofmoneyandpower.B.Thetransmissionofpower.C.Theconservationofsolarenergy.D.TheselectionofanidealplacE.70.Whatistheauthor’sattitudetowardsbuildingsolarplants?A.Disapproving.B.Approving.C.Doubtful.D.Cautious.71.Whichisthebesttitleforthepassage?A.HowtheRailwaysHaveAffectedtheWestB.HowtheEffectsofPowerPlantsCanBeReducedC.HowSolarEnergyCouldReshapetheWestD.HowtheProblemsoftheHighwaysHaveBeenSettled

Therearetwomethodsbywhichhydrogen氢canbeusedtopowercars.Thefirstwayistousehydrogentodrivetheengineinmuchthesamewayasmanycarsusegas.ThesecondmethodistousethereactionofhydrogenwithoxygeninabatterymakingthecarakindofelectriconE.Thedreamofproducinghydrogeninthecarwhiledrivingalongbyelectrolyzing电解waterisalongwayoffsowearestillattheperiodofbatteriesandfillingthetankwithhydrogengas.Thisisthedifficultyforpotentialcarusersandproducers.ThereareonlysixteenhydrogenfillingstationsinLosAngelesandnonein99%ofothercitiesworldwidE.Indeedsomeofthebignameautomobileproducershavepulledoutoftheracetoputthefirstpracticalhydrogencaronthestreets.FordandGMhaveannouncedthattheyarepullingoutinAmericaandsohasRenaultinFrancE.HowevertheJapanesecompaniesarepressingon.InfactHondaintroduceditsfirsthydrogenfuelcellcarin1999.TheyarenowproducingsecondgenerationhydrogencarknownastheFCXClarity.Guesswheretheyareavailableforsale?Inonlyonecitybecauseofitsfillingstations.Hondathinksthattheycouldgointofull-scaleproductionoftheFCXClarityby2020iftheworldispreparedforthembythen.Thentherearehydrogen-poweredbusesinseveralEuropeancitiesincludingAmsterdamBarcelonaHamburgLondonLuxembourgandMadriD.LotusthemakersofLondontaxishaveannouncedthattheyproposetomanufacturehydrogen-poweredtaxisintimefortheLondonOlympics.Sothehydrogenvehicleisoutthereandthenumberswillbegrowingfairlysoon.ThebusesgobacktotheirbusstationwhereanelectrolyzingmachinechangeswaterintofuelforthemtofilluponandthesamewillbethecaseformanyofLondon’staxis.Unfortunatelygettingfuelisnottheonlydifficultyfortheaveragemotoristanumberofthesevehiclescostabout$300000each.67.Accordingtothetexthydrogen-poweredbuses________.A.caneasilybefilledupwithgas.B.arelikelytosellwellinthefuturE.C.aremainlyusedintheUnitedStatesD.won’tbeusedintheLondonOlympics68.Whatdoestheunderlinedwordtheminparagraph5referto?A.JapanesecompaniesB.HydrogenbusesC.TheFCXClarityD.Fillingstations69.Wherearehydrogencarscurrentlyavailableforsale?A.InBarcelonaB.InHamburgC.InLondonD.InLosAngeles70.Wecanlearnfromthetextthat________.A.therearesixtyhydrogenfillingstationsallovertheworldB.hydrogenvehiclesfueledbywaterwillbeveryexpensiveC.Hondawillmass-producetheFCXClarityby2012D.Hondaproduceditsfirsthydrogencarin1989

Stormsbroughtatornadoand2-mch-thinhail冰雹toWyomingonThursdayadayafterthunderstormshitpartsofWyomingandColoradowithgolfball-sizedhailandheavyrain.ThreehomeswereheavilydamagedbythetornadoonThursdayand10to12otherbuildingsalsohaddamage.Onepersonwastreatedatahospitalforacutonthehead.Somepowerlineswerealsodowntotheground.ThetornadotoucheddownbrieflynearWheatlandnorthofCheyenneinapopulatedareaofficialssaid.HailthesizeofgolfballswasreportedintheWheatlandareaand2-inch-thinhailwasreportedinLaramie.Forecasterssaidthunderstormsthatcanspawntornadoescoulddevelopandfloodingwaspossible.Citizensshouldbecareful.AfirewhichisbelievedtohavebeenstartedbylightningonSundaynighthasburnedabout3500acresabout20milesnorthwestofWheatland.About120firefightersaidedbyhelicoptersandairtankerswereonthescene.Therainprovidedsomehelpforfirefighterswhofullycontrolleda227-acrewildfireinnorthernColoradobuttheweatherinthebeginninghurteffortstocontrola6000-acreblaze火焰inWyoming'sMedicineBowNationalForest.StormspassedclosetotheWyomingfirebutmostlybroughtwindsthatfannedtheflames.Rainandhailfelllaterbutdidn'tmakeabigdifferencesaidfirespokeswomanBethHermanson.KyleFredinworkingfortheNationalWeatherServiceinDenversaidthebeginningofJuneisthepeaktimeforsuchsevereweatherinColorado.Mostofthestatehasbeenexperiencingmoderate-to-extremedroughtconditions.60.WhatdoestheunderlinedwordspawninParagraph2mean.A.CauseB.InvolveC.TolerateD.Reject61.Fromthetextwecanlearnthewildfireabout20milesnorthwestofWheatland____.A.hasbeenburningforawholeweekB.wasstartedbysomeoneonpurposeC.diedoutimmediatelytheraincameD.wasveryhardforfirefighterstocontrol62.Theweatherhurteffortstocontrola6000-acreblazebecause____.A.stormsdidn'tpassclosetotheWyomingfireB.heavywindsstoppedfirefightersfromworkingC.rainandhailstoppedfirefightersfromworkingD.theflamesbecameworseafterthestormsbroughtwinds63.AccordingtowhatKyleFredinsaidwecaninferthat_____.A.ColoradohasneverexperiencedsuchsevereweatherbeforeB.it'snotstrangethatastormhitColoradoatthebeginningofJuneC.moderate-to-extremedroughtconditionsoftenleadtothunderstormsD.Coloradowillbefrequentlyhitbysevereweatherinthefollowingmonths

Thecheetah猎豹isbestknownforbeingtheworld’sfastestlandanimalreachingspeedsofjustover110kphforshortperiodoftimE.Howevermanypeopleknowlittleelseaboutthiswonderfulanimal.ThewordcheetahprobablycomesfromaHindiwordspottedanimal.Itisverysimilartoothercatsbutalsohassomeobviousdifferences.Itsbodyismuchleanerthanmostcatsandithasmuchlongerlegs.Peoplesometimesmakeacheetahaleopard美洲豹becausetheybothhavespotsbutinfacttheyareverydifferent.A.leopardisfarheavierandmorepowerfulbutalsomuchslower.Thecheetah’sspotscovermostofitsbodyexceptforitsstomachandthroat.Thecheetah’stailhasspotsandthesebecomeringsattheendofthetail.Anadultcheetahweighsbetween35-65kilogramsandisabout80centimetershighattheshoulder.Thecheetah’sheadisquitesmallandtheeyesarequitehighup.A.blacklinerunsfromeacheyedowntoitsmouthandmakesitlookalittlesaD.Ithashighshouldersthathelpittowalksogracefully.Cheetahsareveryfastbuttheyarenotverystrong.TheyarenotgoodfightersandwillrunawayratherthanfightanotheranimaltoprotecttheirfooD.IftheymakeakillitissometimestakenawayfromthembystrongeranimalssuchaslionsandleoparD.TheseanimalswillkilltheiryoungiftheygetthechancE.Thecheetahisnotathreattohumansatall.Itwillnotattackhumansandpreferstostayawayfromoccupiedareas.68.Manypeopleknowthatthecheetah________A.isafastrunnerB.runsfasterthananyotheranimalonlandC.runsasfastasitcanD.isveryfastforperiodsoftime69.Thecheetah________A.hasspotsalloveritsbodyincludingitstailB.hasspotsonitsstomachandthroatC.doesnothavespotsonitsstomachandthroatD.hasspotseverywhereexceptforitsstomachandthroat70.Cheetahswillnotfightanotheranimaltoprotecttheirfoodbecause_______A.theycanquicklyrunawayB.theyareveryfastrunnersC.TheywanttoprotecttheiryoungD.Theyarepoorfighters

Honeybeescandothreekindsofjobs.ThehoneybeeisoneofthemostunusualinsectsintheworlD.Beesarespecialbecausetheydivideuptheirwork.Eachbeehasacertainjobtodo.Thebusiestbeeistheworker.WorkersbuildthenestcalledahivE.Insidethehiveworkersmakeahoneycombfromwax蜂蜡.TheystorehoneythereforfooD.WorkersarealwayscleaningandfixingthehivE.TheyevenstandattheopeningandfantheirwingstocoolthehivE.Workerbeeswillattackanything—evenpeople—tokeeptheirhivesafE.Anotherkindofbeeisthedrone雄蜂.Dronesaremalebeesandtheirjobistoflywiththequeenbeeandmatewithher.Afterthequeenmatestheworkerbeesdrivethedronesaway.Thedronesthenstarvetodeath.Thethirdkindofbeeisthequeen.Eachhiveneedsonlyonequeenandherjobislayingeggs.Shecanlayasmanyas2000eggsaday.64.Thebee’snestiscalleda_______.A.dronE.B.honeycomB.C.hivE.D.wax.65.Waxisusedtomakethe_______.A.nest.B.honeycomB.C.fan.D.hivE.66.Whichjobsdoworkersdo?A.Theylay2000eggseachdayandbuildanest.B.TheymatewiththequeenbeeandthenstarvE.C.Theycleanthehiveandkeepitcool.D.TheyattackthequeenbeE.67.Accordingtothestorybees_______.A.areverydangerousinsects.B.willattackanythingoranyonetoprotectthehiveifnecessary.C.arelikeanyotherinsectthatflies.D.eateachotherasfooD.

WiththeTeslaRoadsterandotherplug­in插入式electricvehicleshittingtheroaddemandisgrowingforaccessiblerefuelingpointstorechargethem.CarbonDayAutomotiveaChicago­basedcompanyhasnowdemonstratedasolar­poweredrechargingpointknownastheSolarPlug­InStationwhichletsmotoristseasilychargetheircarsusingelectricitythathasbeenproducedwithoutanyenvironmentaldamagE.TheSolarPlug­InStationhasgoneonshowinChicagoaspartofthecity’sbidtohostthe2016OlympicGames.AccordingtoCarbonDayAutomotivetheSolarPlug­InStationonshowinChicagoispartofthevitalinfrastructure基础设施requiredforelectricvehiclesinChicagoandwasthefocusofarecentvisitbytheInternationalOlympicCommitteE.Thesesolar­poweredelectricitypointswillbeuseddailytofuelthecity’selectricvehicleswithpowerfromthesun.Byproducingtheelectricityfrompollution­freesolarcelltheCO2emissionsarereducedtozero.SolarenergyandelectricvehiclesareapartnershipthatisonemoresteptoreducingourdependenceonforeignoilsaysRichardLowenthalCEOofCoulombTechnologies.CoulombTechnologiesrecentlydevelopedthecomponents部件requiredforindividualrechargingstationsmarketedasChargePointNetworkedChargingStations.CarbonDayAutomotiveistheMidwestdistributorfortheChargePointstations.TheSolarPlug­InStationconsistsofgiantsolarpanels电池板thatshadethetinyChargePointNetworkedChargingStation.Thesolarpanelisconnectedtoanundergroundbatterypackreadyforeverydayrefueling.WithoutthesestationsitwouldbelikedrivingaroundinatraditionalcarwithouttheavailabilityofgasstationssaysScottEmalfarbCEOatCarbonDay.Thedayoftrueplug­inelectricvehicleswillbeheresoonerthanmostpeoplerealizeandtheworldneedstobereadytoaccommodatethem.66.TheSolarPlug­InStationisusedaspartofthebidtohosttheOlympicsmainlybecause________.A.it’senvironmentallyfriendlyB.itmakesupforthelackofelectricityC.it’sanewideaandattractspeople’sattentionD.itbringsconveniencetoelectricvehicleusers67.Wecanlearnfromthepassagethat________.A.torechargetheelectricvehiclestakesalongtimeB.theSolarPlug­InStationwillcomeintousein2016C.theSolarPlug­InStationhasgoneonshowinternationallyD.Chicagoispromotingtheuseofelectricvehicles68.AccordingtothepassagehowmanyofthefollowingstatementsareTRUE?A.TeslaRoadsterisakindofplug­inelectricvehiclE.B.TheSolarPlug­InStationusessolarpowertochargeallofthecars.C.Chicagoisacitywhichisrichinoil.D.TheSolarPlug­InStationconsistsofundergroundbatterypacks.E.ScottEmalfarbisoptimisticaboutthefutureofplug­inelectricvehicles.A.2.B.3.C.4.D.5.69.ThepassageimpliesthatwhentheSolarPlug­InStationbecomespopular________.A.morevisitorswillcometoChicagoB.thecitizensofChicagowillbeabletogotoworkfasterC.morespaceforelectricvehicleswillbeneededD.thecostofelectricvehicleswillbelowerthantraditionalcars70.Whatwouldbethebesttitleforthepassage?A.ChicagoWillSoonBeFullofElectricVehiclesB.ChicagoCallsonPeopletoBuyElectricVehiclesC.ChicagoFightsforItsBidtoHostthe2016OlympicsD.ChicagoShowsItsSolar­poweredRechargingStations

Everyonehasgottwopersonalities—theonethatisshowntotheworldandtheotherthatissecretandreal.Youdon'tshowyoursecretpersonalitywhenyou'reawakebecauseyoucancontrolyourbehaviourbutwhenyou'reasleepyoursleepingpositionshowstherealyou.Inanormalnightofcoursepeoplefrequentlychangetheirposition.Theimportantpositionistheonethatyougotosleepin.Ifyougotosleeponyourbackyou'reaveryopenperson.Younormallytrustpeopleandyouareeasilyinfluencedbyfashionornewideas.Youdon'tliketoupsetpeoplesoyouneverexpressyourrealfeelings.You'requiteshyandyouaren'tveryconfident.Ifyousleeponyourstomachyouarearathersecretive不坦率的person.Youworryalotandyou'realwayseasilyupset.You'reverystubborn顽固的butyouaren'tveryambitious.Youusuallylivefortodaynotfortomorrow.ThismeansthatyouenjoyhavingagoodtimE.Ifyousleepcurledup卷曲youareprobablyaverynervousperson.Youhavealowopinionofyourselfandsoyou'reoftendefensivE.You'reshyandyoudon'tnormallylikemeetingpeoplE.Youprefertobeonyourown.You'reeasilyhurt.Ifyousleeponyoursideyouhaveusuallygotawell-balancedpersonality.Youknowyourstrengthsandweaknesses.You'reusuallycareful.Youhaveaconfidentpersonality.Yousometimesfeelanxiousbutyoudon'toftengetdepresseD.YoualwayssaywhatyouthinkevenifitannoyspeoplE.61.Accordingtothewriteryounaturallyshowyoursecretandrealpersonality_______.A.onlyinanormalnightB.onlywhenyouaresleepingC.onlywhenyourefusetoshowyourselftotheworldD.onlywhenyouchangesleepingposition62.WhichisNOTmentionedinthesecondparagraphaboutaperson'spersonalityA.Heorsheisalwaysopenwithothers.B.Heorshealwayslikesnewideasearlierthanothers.C.Heorsheisalwayseasilyupset.D.Heorshetendstobelieveinothers.63.PointoutwhichsentenceisusedtoshowthepersonalityofapersonwhoisusedtosleepingonhisorherstomachA.Heorsheiscarefulnottooffendothers.B.Heorshedoesn'twanttosticktohisorheropinion.C.Heorshemaynotbesuccessfulinanybusiness.D.Heorshelikestobringothershappiness.64.Maybeyoudon'twanttomakefriendswithapersonwhosleepscurledup.WhyA.Heorshewouldratherbealonethancommunicatewithyou.B.Heorsheisrarelyreadytohelpyou.C.Heorsheprefersstayingathometogoingout.D.Heorshewouldn'tliketogethelpfromyou.65.Itappearsthatthewritertendstothinkhighlyofthepersonwhosleepsononesidebecause__________.A.heorshealwaysshowssympathyforpeopleB.heorsheisconfidentbutnotstubbornC.heorshehasmorestrengthsthanweaknessesD.heorsheoftenconsidersannoyingpeople

FouroutoffiveparentsworrythattheirchildrenwillbecomeaddictedtoFacebookaccordingtoastudy.EightypercentbelievesocialnetworkingsitessuchasFacebookandTwitterhavetheabilitytotakeovertheirchildren’slives.OneinthreeparentsmeanwhilebelievetheInternethasthepowertorewirebrains改装大脑withoutaperson’sknowledgeandthinktheirchildrenareindangeroftheweB.Theextraordinaryfindingscomefromapollof1000parentscarriedoutbytheNominetTrustanorganizationthatpromotedInternetprojectswhichaddresssocialdisadvantages.HoweverNominetsaidtheirfindingsflyinthefaceofneurological神经学上的evidencE.TheTrustworkedwithneuroscienceandeducationexpertDr.PaulHowardJoneswhoanalysedresearchesontheInternetandsociety.Thereport—TheImpactofDigitalTechnologiesonHumanWell-being—concludedthatthereisnoneurologicalevidencetosuggestthattheInternetismoreeffectiveatrewiringourbrainsthanotherenvironmentalinfluences.ItalsofoundthattheInternetisavaluablelearningresourceandallformsoflearningcausechangeswithinthebrain.TherehavebeenreportsthattheuseoftheInternetwithitsvastresourcesofinformationischangingthewaypeoplethinkandaffectingtheirabilitytoconcentratE.ButNominetsaidthat’sscaremongering危言耸听andthemisinformationabouttheInternetusecanpotentiallydeny否定itsbenefitstopeopleinparticularparentswhoareworriedabouttheeffectsontheirchildren’sdevelopment.Thereportalsofoundthatsocialnetworkingsitesinthemselvesarenotaspecialsourceofrisktochildrenandaregenerallybeneficialastheysupportexistingfriendships.Inadditionplayingactionvideogamescanimprovesomevisualprocessingandmotorresponseskillswhilecomputer-basedactivityprovidesmentalstimulationandcanhelpslowratesofcognitivedeclinE.61.Whatdoesthepassagemainlytalkabout?A.FourinfiveparentsfeartheirchildrenwillbecomeFacebookaddicts.B.SocialnetworkingsitesmakepeoplemoresociablE.C.MoreandmorechildrenwillbecomeaddictedtoFacebook.D.TheInternethasthepowertorewiringbrains.62.WhatdoestheunderlinedphraseflyinthefaceofinParagraphfourprobablymean?A.Goagainst.B.Havealotincommonwith.C.Besimilarto.D.Havesomethingtodowith.63.Wecaninferfromthepassagethat_______.A.socialnetworkingsitessuchasFacebookandTwitterwillrewirechildren’sbrainsB.Dr.PaulHowardJonesisamemberoftheNominetTrustC.Dr.PaulHowardJonesthinkstheInternetisusefulandbeneficialD.thestudysurveyedapollof1000children64.AccordingtothepassagethestudycarriedbytheNominetTrustshowedthat_______.A.oneinthreeparentsbelievesFacebookhastheabilitytotakeovertheirchildren’slivesB.theInternetismoreeffectiveatrewiringourbrainsthanotherenvironmentalinfluencesC.fouroutoffiveparentsthinktheirchildrenareindangerofthewebD.eightypercentofparentsworrythattheirchildrenwillbecomeaddictedtoFacebook65.Thelastparagraphmainlytellspeople_______.A.playingactionvideogamescanimprovesomevisualprocessingandmotorresponseskillsB.theInternetinitselfisnotadangertochildrenbutgenerallybeneficialC.socialnetworkingsitesinthemselvessupportexistingfriendshipsD.computer-basedactivityprovidesmentalstimulationandcanhelpslowratesofcognitivedecline

Ifcarshadwingstheycouldflyandthatjustmighthappenbeginningin2011.ThecompanyTerrafugiabasedinWoburnMassachusettssaysitplanstodeliveritscar-planetheTransitiontocustomersbytheendof2011.It’sthenext‘wow’vehiclesaidTerrafugiavicepresidentRichardGersh.AnybodycanbuyaFerraributaswesayFerrarisdon’tfly.Thecarplanehaswingsthatunfoldforflying--aprocessthecompanysaystakesoneminute--andfoldbackupfordriving.A.runwayisstillrequiredtotakeoffandlanD.TheTransitionisbeingmarketedmoreasaplanethatdrivesthanacarthatfliesalthoughitisboth.ThecompanyhasbeenworkingwithFAAtomeetaircraftregulationsandwiththeNationalHighwayTrafficSafetyAdministrationtomeetvehiclesafetyregulations.ThecompanyisaimingtoselltheTransitiontoprivatepilotsasamoreconvenientandcheaperwaytofly.Theysayitsavesyouthetroublefromtryingtofindanothermodeoftransportationtogettoandfromairports:Youdrivethecartotheairportandthenyou’regoodtogo.WhenyoulandyoufoldupthewingsandhittheroaD.Therearenoexpensiveparkingfeesbecauseyoudon’thavetostoreitatanairport--youparkitinthegarageathomE.Thecar-planeisdesignedtoflyprimarilyunder10000feet.Ithasamaximumtakeoffweightof1430poundsincludingfuelandpassengers.TerrafugiasaystheTransitionreducesthepotentialforanaccidentbyallowingpilotstodriveunderbadweatherinsteadofflyingintomarginal临界conditions.TheTransition’spricetag:$194000.ButtheremaybeadditionalchargesforoptionslikearadiotransponderorGPS.Anotheroptionisafull-planeparachutE.IfyougetintoaveryawfulsituationitisthenecessarysafetyoptionGershsaiD.Sofarthecompanyhasmorethan70orderswithdeposits.We’reworkingverycloselywiththembuttherearestillsomeremainingstepsBrownsaiD.67.Fromthefirstparagraphwecanlearnthat________.A.car-planeswillbeproducedinlargeamountin2011B.RichardGershisthepresidentofTerrafugiaC.bothTransitionandFerraricanflyandlandsafelyD.possiblypeoplewilldriveacar-planein201168.Ittakesthecar-planeoneminuteto________.A.foldandunfolditswingsB.foldbackupfordrivingC.unfoldwingsforflyingD.landintheairport69.AccordingtothepassagewhichofthefollowingisWrong?A.Thecar-planerequiresarunwaytotakeoffandlanD.B.Thecar-planemayflyhigherthannormalplanes.C.Peoplecanparkthecar-planeinthegarageattheirhomE.D.thecompanyhasbeenworkingwithFAAtomeetaircraftregulations.70.What’sthebesttitleforthepassage?A.CarsWithWingsCanFlyasFastasPlanes.B.WhichtoChoose:A.FerrarioraCarPlane?C.A.moreConvenientandCheaperWaytoFly.D.CarsWithWingsMayBeJustAroundTheCorner.

AlltheoceansoftheworldwillbedeadinthefutureunlessactionistakenatoncE.Howcanthishappen?WehavealreadyseenthatpeopleallowallsortsofwasteproductstoflowintotheseA.Itisalmostimpossibletomeasurehowmuchwastewaterandindustrialwasteinouroceansbutwecanfindouthowmuchoilispouredintothemlegallyandillegally.Itisillegaltopouroilintotheseaclosetotheshorebutwhenashipismanymilesouttoseatherearenosuchrules.ScientistshavedifferentideasastotheamountofoilputtingintotheseabutthelowestfigureforoilpouredinEuropeanwatersaloneisnearly200000tonseveryyear.Somepeoplesaythefigurecouldbetentimesashigh.Itisnotonlyourcoaststhatsufferfromoilpollution.Manyshellfishforexamplenowhavehighamountsofpoisonoussubstances物质.Nexttimeyouhaveshellfishtoeathowcanyoubesurethattheyarefreefromoilpollution?Youcannotseetheeffectsandyoucannottastethemeither.Itisreallyquiteaproblem.51.Thispassageismainlyabout_________________.A.pollutionintheoceansB.oilpollutioninthewatersC.theamountsofpoisoninshellfishD.theamountsofoilinthesea52.Accordingtothepassagewhatisthemaincauseofoilpollution?A.Oilshipswhichmeetandstrikeeachother.B.Oilpouredatseawhentheoiltanksarecleanedout.C.OilfromwastewaterandindustrialwastE.D.OilcomingoutofthebottomoftheseA.53.Whichofthefollowingisillegalaccordingtothepassage?A.PouringoilintotheseafromlandespeciallywhenthereisnootherchoicE.B.PouringoilatseasidE.C.Allowingwastematerialstoflowintothewaters.D.Goingfishingwhenthewaterispollutedbyoil.54.AccordingtothepassagewhichoneisTRUE?A.Theamountofoilputintotheseaisnearly2000000tonsintheglobE.B.Everyyearthefigureforoilpouredintheoceanis1000000tonsinEuropE.C.Somepeoplethinkthefigureforoilpouredisestimatedtoolow.D.Thehighestamountofoilputintotheoceansreaches1000000tonsinglobE.55.WhichofthefollowingstatementsisWRONGaccordingtothepassage?A.Thewaterbodyoftheearthwillbedeadbytheyear2010withoutanyeffectivemeasurE.B.AlltheOceansintheworldarepollutedbyoil.C.It'spossiblethatallthecreaturesintheseawilldieoutifnoactionistaken.D.Somekindsofthelivingthingsinwatershavebeenpoisonedandwemustbecarefulofthem.

Haveyoueverhadthestrangefeelingthatyouwerebeingwatched?Youturnedaroundandsureenoughsomeonewaslookingrightatyou!Parapsychologists灵学家saythathumanshaveanaturalabilitytosensewhensomeoneislookingatthem.ToresearchwhethersuchasixthsensereallyexistsRobertBakerapsychologistattheUniversityofKentuckyperformedtwoexperiments.InthefirstoneBakersatbehindunknowingpeopleinpublicplacesandstaredatthebacksoftheirheadsfor5to15minutes.Thesubjects受试者wereeatingdrinkingreadingstudyingwatchingTVorworkingatacomputer.Bakermadesurethatthepeoplecouldnottellthathewassittingbehindthemduringthoseperiods.Laterwhenhequestionedthesubjectsalmostallofthemsaidtheyhadnosensethatsomeonewasstaringatthem.ForthesecondexperimentBakertoldthesubjectsthattheywouldbestaredatfromtimetotimefrombehindatwo-waymirrorinalaboratorysetting.Thepeoplehadtowritedownwhentheyfelttheywerebeingstaredatandwhentheyweren’t.Bakerfoundthatthesubjectswerenobetterattellingwhentheywerestaredatandwhentheyweren’t.BakerfoundthatthesubjectswerenobetterattellingwhentheywerestaredatthaniftheyhadjustguesseD.Bakerconcludesthatpeopledonothavetheabilitytosensewhenthey’rebeingstaredat.IfpeopledoubttheoutcomeofhistwoexperimentssaidBakerIsuggesttheyrepeattheexperimentsandseeforthemselves.67.Thepurposeofthetwoexperimentsisto______.A.explainwhenpeoplecanhaveasixthsenseB.showhowpeopleactwhilebeingwatchedinthelabC.studywhetherhumanscansensewhentheyarestaredatD.provewhyhumanshaveasixthsense68.Inthefirstexperimentthesubjects______.A.werenottoldthattheywouldbestaredatB.losttheirsensewhentheywerestaredatC.werenotsurewhentheywouldbestaredatD.wereuncomfortablewhentheywerestaredat69.TheunderlinedwordoutcomeinthelastparagraphmostprobablymeansA.valueB.resultC.performanceD.connection70.Whatcanbelearnedfromthepassage?A.PeoplearebornwithasixthsensE.B.Theexperimentssupportparapsychologists’ideA.C.Thesubjectsdonothaveasixthsenseintheexperiments.D.Peoplehaveasixthsenseinpublicplaces.

AsimplepieceofclotheslinehangsbetweensomeenvironmentallyfriendlyAmericansandtheirneighbors.Ononesidestandthosewhoseeclothesdryers干衣机asawasteofenergyandamajorpolluteroftheenvironment.Asaresulttheyareturningtoclotheslinesaspartofthewhat-I–candoenvironmentalism环境保护主义.Ontheothersidearepeoplewhoareagainstdryingclothesoutsidearguingthatclotheslinesareunpleasanttolookat.TheyhavepersuadedHomeownersAssociationsHOAsaccesstheU.S.tobanoutdoorclotheslinesbecauseclotheslinedryingalsotendstolowerhomevalueintheneighborhooD.ThishadledtoaRight-to-DryMovementthatiscallingforlawstobepassedtoprotectpeople’srighttouseclotheslines.SofaronlythreestateshavelawstoprotectclotheslinE.Right-to-DrysupportersarguethatthereshouldbemorE.MattReck37isthekindofeco-conscious有生态意识的personwhofeedshistreeswithbathwaterandreuseswaterdropsfromhisairconditionerstowaterplants.HisfamilyalsousesaclotheslinE.ButonJuly92007theHOAinWakeForestNorthCarolinatoldhimthatadissatisfiedneighborhadtelephonedthemabouthimclotheslinE.TheReckspaidnoattentiontothewarningandstilldriedtheirclothesonalineintheyarD.Manypeoplesaytheyareenvironmentallyfriendlybuttheydon’ttakemattersintheirownhandssaysReck.ThelocalHOAhasdecidednottotakeanyactionunlessmoreneighborscometothem.NorthCarolinalawmakersaresayingthatbanningclotheslinesisnottherightthingtodo.ButHOAsandhousingbusinessesbelievethatclotheslinedryingremindspeopleofpoorneighborhoods.Theyworrythatifbuyersthinktheirfutureneighborscan’tevenafforddryershousingpriceswillfall.EnvironmentalistssaysuchworriesarenotnecessaryandinviewofglobalwarmingthatideaneedstochangE.AstheysayTheclotheslineisbeautiful.HangingclothesoutsideshouldbeencourageD.Weallhavetodoatleastsomethingtoslowdowntheprocessofglobalwarming.8.Oneofthereasonswhysupportersofclothesdryersaretryingtobanclotheslinedryingisthat____.A.clothesdryersaremoreefficientB.clotheslinedryingreduceshomevalueC.clothesdryersareenergy-savingD.clotheslinedryingisnotallowedinmostU.S.states9.WhichofthefollowingbestdescribesMattReck?A.Heisakind-heartedman.B.Heisanimpoliteman.C.Heisandexperiencedgardener.D.Heisamanofsocialresponsibility.10.Whoareinfavorofclotheslinedrying?A.housingbusinesses.B.Environmentalists.C.HomeownersAssociations.D.Reck’sdissatisfiedneighbors.11.Whatismainlydiscussedinthetext?A.Clotheslinedrying:awaytosaveenergyandmoney.B.Clotheslinedrying:alostartrediscovereD.C.Oppositeopinionsonclotheslinedrying.D.Differentvarietiesofclotheslines.

Catchyourselfdaydreamingwhilewashingthedishesagain?Ifthishappensoftenyouprobablyhaveaprettycapableworkingmemoryandasharperbrainnewresearchsuggests.Thismindwanderingitseemsactuallygivesyourworkingmemoryaworkout.WorkingmemoryisthementalworkspacethatallowsthebraintojugglemultiplethoughtsatthesametimE.ThemoreworkingmemoryapersonhasthemoredaydreamingtheycandowithoutforgettingthetaskathanD.ResearchersstudiedgroupsofpeoplefromtheUniversityofWisconsin－Madisoncommunityranginginagefrom18to65.Thevolunteerswereaskedtoperformsimpletaskslikepressingabuttoneverytimetheytookabreathorclickinginresponsetoaletterpoppinguponacomputerscreen;thesetasksweresoeasythattheirmindswerelikelytowandertheresearchersfigureD.Theresearcherscheckedinperiodicallyaskingtheparticipantsiftheirmindswereontaskorwandering.Whenthetaskwasovertheymeasuredeachparticipant'sworkingmemorycapacitybyhavingthemrememberletterswhiledoingmathquestions.Thoughallparticipantsperformedwellonthetasktheresearchersnoticedthattheindividualswhoindicatedtheirmindshadwanderedmorethanothersalsoscoredhigherontheworkingmemorytest.Whatthisstudyseemstosuggestisthatwhencircumstancesforthetaskaren'tverydifficultpeoplewhohaveadditionalworkingmemoryresourcesallocatethemtothinkaboutthingsotherthanwhatthey'redoingsaidJonathanSmallwoodastudyresearcheroftheMaxPlanckInstituteforHumanCognitveandBrainSciencE.Whenourmindsrunoutofworkingmemorytheseoff－topicthoughtscantakethemainstagewithoutusconsciouslymeaningthemto;forinstancearrivingathomewithnomemoryoftheactualtriporsuddenlyrealizingthatthey'veturnedseveralpagesinabookwithoutunderstandinganyofthewords.It'salmostlikeyourattentionwassoabsorbedinthemindwanderingthattherewasn'tanyleftovertorememberyourgoaltoreadstudyresearcherDanielLevinsonsaidinastatement.Peoplewithoverallhigherworkingmemorywerebetterabletostayfocusedwhenthetaskathandrequiredit.Thosewhohadlowworkingmemoryoftenhadtheirthoughtsdriftawayfromthetaskanddidlesswellatit.Thefindingsaddtopastresearchsuggestingtheseminddriftscanbepositivemoments.Forinstancedaydreaminghasoftenbeenassociatedwithcreativity—researchersthinkthatourmostcreativeandinventivemomentscomewhendaydreaming.It'slikelythatthemostintelligentamongusalsohavehighlevelsofworkingmemoryLevinsonnoteD.40.Thewordjuggleinthesecondparagraphcanbereplacedby________.A.handleB.searchC.understandD.distribute41.WhatcanbeconcludedfromJonathanSmallwood'swords?A.Peoplewhooftenhavedaydreamsprobablyownaprettycapableworkingmemory.B.OntheworkingmemorytestpeoplewithwanderingmindswillgethighscorE.C.Absorbedinthemindwanderingyourattentionleftnospaceforyourgoal.D.Dealingwithsomeeasyjobspeoplewithhigherworkingmemorywilldaydream.42.Whatisthebesttitleofthepassage?A.MinddriftsarealwayspositivE.B.DaydreamingisgoodfortheminD.C.Creativemomentscomewithworkingmemory.D.Themoredaydreamingthemoreeffectivelyoneworks.

Wildlifefacesthreats威胁fromhabitatdestructionpollutionandotherhumanactions.Althoughprotectingwildlifemayseemtoohardattimesevensmallactionsinyourownneighborhoodcanhelpprotectmanydifferentanimals.Herearesometipsonhowtoprotectwildlifethroughsmallactions.1.CreatewildlifefriendlyareasinyourbackyarD.WhentryingtomakeyourgardenmorebeautifulyoucanchooseplantsthatcanprovidefoodandsheltertonativewildlifE.Thiswillalsohelpcutdownonpollution.Andbirdorbathousestoyouryardorgardentoattractandshelterthesespecies.2.Avoidharmingthenaturalecosystem生态系统inyourareA.SomeplantsfromotherplacescankillorharmnativeplantsthatprovidefoodandshelterforwildlifE.3.HaveagreenerlifestylE.Byusinglesswaterandfewerfuelsyouwillbehelpingtoprotectthewildlifearoundyou.Takebusesorthesubwaywhenyoucanturnoffelectricdeviceswhenyou'renotusingthemtakeshortershowersandkeepyourroomtemperatureatorbelow68degreesduringthewinter.4.Buyproductsthatarewildlifefriendly.Don'tbuyproductsthataremadefromendangeredanimals.Keepinmindthatsomeendangeredanimalsarekilledbytrapscatchesorhunterswhoareafterotherwildlifewithinthesamehabitat.5.Donatemoneyortimetoorganizationsthatprotectwildlifeandtheirhabitats.YoucangivemoneytoorganizationsorgroupsthatprotectwildlifespeciesinyourneighborhooD.53.Weinferthatthepurposeofthispassageisto________.A.telluswhyprotectingwildlifeisextremelyimportantnowB.suggestthatweprotectwildlifethroughactionsC.explainwhyprotectingwildlifeisnotashardaspeoplethinkD.giveussometipsonhowtoprotectwildlifethroughsmallactions54.WhichofthefollowingthreatstowildlifeisNOTmentionedinthepassage?A.Animaldiseases.B.Lossofhabitat.C.Pollution.D.Hunters.55.Inwhichsectionofanewspaperwouldyoumostprobablyreadthispassage?A.EnvironmentB.TeachingC.BusinessD.Geography

Whenwethinkaboutpeoplewhoareleadersweoftengetamentalpictureofsomeonewhoisoldersmarterandwiserthanourselves.StudiesofleadershipthoughhaveusuallyfoundthatthereisalmostnorelationshipbetweenskillasaleaderandtraditionalmeasuresofintelligencE.SomerecentresearchbypsychologistRedFiedleandhiscolleaguessuggeststhatbothintelligenceandexperiencemaybeimportant—butjustnowhowimportantdependsuponhowstressfultheworksituationisandwhatkindoftaskistobeaccomplisheD.Theresearchersobtainedmeasuresofintelligenceexperienceperformanceandstress.Overallthesevariablesdidnotrelatetooneanother.Menwithhighandlowintelligencewereequallylikelytogivegoodperformanceasweremenwithmoreandlessexperienceormoreandlessstresswiththeirbosses.Whenyoulookseparatelyatthosemenwhohavehighstresswiththeirbosseshoweverthepicturechanges.InhighstresssituationstherewasnoconnectionbetweenintelligenceandperformancebuttherewasbetweenexperienceandperformancE.Inotherwordsindifficultsituationsitwashelpfultoknowtheropes.InlowstresssituationsthefindingswerejusttheoppositE.Experiencewasnotrelatedtogoodperformancebutintelligencewas.Thatiswhenthingsaregoingwellintelligenceisveryusefulinleadership.Astudyoffirefighters’performanceunderhighandlowstressconditionsalsofoundtheexperiencedofficersperformedbestundersituationsofstress.Noneofthisisreallyverysurprising.Ifyouhaveeverhadasupervisoryjobyouprobablyfoundthatatleastasmuchenergywentintodealingwithpeopleaswentintomanagingthejobitself.Testsofintelligence—atleasttheoneswehavenow—donotpredictsuccessindealingwithpeoplE.55.Whatkindofpeoplecandothebestjobinstresssituation?A.intelligentpeopleB.experiencedpeopleC.calmpeopleD.skilledpeople56.Inthesecondsentenceofthefourthparagraphtoknowtheropesmostprobablymeans.A.tounderstandthesituationB.tocontrolthesituationC.togetridofthesituationD.tomakesurewhattodoaboutthesituation57.Inthethirdsentenceofthelastparagraphasupervisoryjobrefersto.A.amanagementjobB.anadvisoryjobC.ateachingjobD.anorganizingjob58.Whichofthefollowingstatementsistrueaccordingtothepassage?A.InstresssituationstherearenoassociationbetweenexperienceandperformancE.B.SomerecentresearchsuggeststhatmostleadersarelackofintelligencE.C.Inlowstresssituationsintelligenceplaysanimportantroleinleadership.D.GenerallyspeakingleadersarelikelytobeclevererthanordinarypeoplE.

About1966orsoaNASA美国宇航局teamdoingworkfortheApollomoonmission阿波罗登月计划tooktheastronautsnearTubaCity.TherethelandoftheNavajoReservationlooksverymuchlikethelunarsurfacE.Amongallthetrucksandlargevehiclesweretwolargefiguresthatweredressedinfulllunarspacesuits.NearbyaNavajoshepherd牧羊人andhissonwerewatchingthestrangecreatureswalkaboutoccasionallybeingwatchedoverbyotherNASAworkers.ThetwoNavajopeoplewerenoticedandapproachedbytheNASApeoplE.SincetheshepherdandhissondidnotknowEnglishtheyaskedtheNASApeoplewhothestrangecreatureswerE.TheNASApeopletoldthemthattheywerejustmenthatweregettingreadytogotothemoon.Theshepherdbecameveryexcitedandaskedifhecouldsendamessagetothemoonwiththeastronauts.TheNASAofficialsthoughtthiswasagreatideasotheyprovidedataperecorder.AfterthemangavethemhismessagetheyaskedhissontotranslatE.Hissonwouldnot.LatertheytriedafewmorepeopleontheNavajoReservationtotranslateandeverypersontheyaskedwouldchuckle偷偷地笑andthenrefusetotranslatE.FinallywithcashinhandsomeonetranslatedthemessageWatchoutfortheseguystheyhavecometotakeyourland!56.TheappearanceoftheNavajoReservationisverysimilartothatof________.A.theTubaCityB.themoonC.theNASAresearchcenterD.theApollomoonmission57.WhentheolderNavajoheardthatthemeninfrontofhimweregoingtothemoonhe________.A.feltfrightenedandranawayquicklyB.chattedexcitedlywiththeNASAworkersC.gotonthemoderntrucksandlargevehiclesforfunD.triedtosaysomethingtothemooncreatures58.Thesondidnottranslatethewordshisfathersaidbecause________.A.hehadtroubleinunderstandinghisfatherB.thewordshisfatherusedweretoodifficulttobetranslatedC.hisfatherwassendingawarningagainsttheNASApeopleD.hebelievedthattheNASAworkerscouldunderstandtheirlanguage59.Accordingtothispassagewecanknowthattheshepherdwas________.A.patientandbraveB.foolishandimpoliteC.humorousandintelligentD.knowledgeableandtalkative

Ifyouhaven’theardorseenanythingaboutRoadRageinthelastfewmonthsyou’veprobablybeenavoidingthemediA.Therehavebeencountlessstoriesaboutthisnewandscaryphenomenonconsideredatypeofaggressivedriving.YouhavemostlikelyencounteredaggressivedrivingorRoadRagerecentlyifyoudriveatall.Whiledrunkdrivingremainsacriticalproblemthefactsaboutaggressivedrivingaresurelyasdisturbing.ForinstanceaccordingtotheNationalHighwayTransportationSafetyAssociation41907peoplediedonthehighwaylastyear.Ofthosedeathstheagencyestimatesthatabouttwo-thirdswerecausedatleastinpartbyaggressivedrivingbehavior.Whyisthisphenomenonoccurringmorethanevernowandwhyisitsomethingthatseemedalmostnonexistentafewshortyearsago?Expertshaveseveraltheoriesandallareprobablypartiallycorrect.Onesuggestionissheerovercrowding.Inthelastdecadethenumberofcarsontheroadshasincreasedbymorethan11percentandthenumberofmilesdrivenhasincreasedby35percent.Howeverthenumberofnewroadmileshasonlyincreasedby1percent.Thatmeansmorecarsinthesameamountofspace;andtheproblemismagnifiedinurbanareas.Alsopeoplehavelesstimeandmorethingstodo.Withpeopleworkingandtryingtofitextrachoresandactivitiesintothedaystresslevelshaveneverbeenhigher.Stresscreatesanxietywhichleadstoshorttempers.ThesefactorswhencombinedincertainsituationscanspellRoadRagE.YoumaythinkyouarethelastpersonwhowoulddriveaggressivelybutyoumightbesurpriseD.Forinstancehaveyoueveryelledoutloudataslowerdriversoundedthehornlongandhardatanothercarorspeduptokeepanotherdriverfrompassing?Ifyourecognizeyourselfinanyofthesesituationswatchout!Whetheryouaregettingangryatotherdriversoranotherdriverisvisiblyupsetwithyoutherearethingsyoucandotoavoidanymajorconflict.IfyouareeasilyinfluencedbyRoadRagethekeyistodischargeyouremotioninahealthyway.Ifyouarethetargetofanotherdriver’sragedoeverythingpossibletogetawayfromtheotherdriversafelyincludingavoidingeyecontactandgettingoutoftheirway.63.ThefirstsentenceinParA.1impliesthat______.A.onemaybeangeredbymediareportsandwantstoavoidthemB.themediacoinedthetermRoadRageonlyafewmonthsagoC.RoadRagehasreceivedmuchmediacoverageinthelastfewmonthsD.peoplenotinterestedinthemediaknowlittleaboutrecenthappenings64.TheunderlinedwordspellinParA.3means________.A.relieveB.causeC.spreadD.prevent65.Whichofthefollowingcharacterizesaggressivedriving?A.Talkingwhiledriving.B.DrivingathighspeeD.C.Soundingthehornwhenpassing.D.Shoutingatanotherdriver.66.Thelastparagraphisintendedto_________.A.tellpeoplehowtodealwithRoadRageB.informpeoplehowaggressivedriverscouldbeC.showpeoplehowtocontrolthemselveswhenangryD.warnpeopleagainsteyecontactwithanotherdriver

SriLankaisknownasthePearloftheIndianOceananditiseasytoseewhy.Thislittlecountryneverfailstopleasevisitors.ArriveThenationalairlineisSriLankanAirlineswhichfliesfromColombotoLondonandacoupleofotherEuropeancities.Thecountry’smainairportisColomboBandaranaikelocated29kmnorthofthecapitalcity.Whynow?ThebesttimetovisitSriLanka’ssouthernbeachesisfromNovembertoApril.Sobygoingearlyintheseasonyou’llgetthebestweather.AlsoinNovemberDeepavaliknownasDiwaliortheFestivalofLightsisSriLanka’smainreligiousfestivalcelebratedthroughoutthecountry.SeeThereisplentytoseeinSriLankA.TheancientcapitalcitiesofPolonnaruwaandAnuradhapuraareworthseeingandsoaremanyoutstandingruins.Othermustseesaretherockfortress要塞ofSigiriyatoweringoverthejungleasfarastheeyecanseeandDambulla’scavetemplethecountry’slargestandbestpreserveD.BothareUNESCOWorldHeritage遗产Sites.Kandyisapicture-liketownwhichwasthelaststrongholdoftheKandyanKings.Todayitisaculturalreliccentrewhereage-oldcustomsartsandcraftsremain.DoSriLankaownsabout1600kmofbeautifulpalm-shadedbeachesaswellaswarmpureseasandcolourfulcoralreefs.Youcanexploretheunderwaterworldandsurfinganddivingareavailabletoo.AwayfromtheshorewildlifeisabigdrawforSriLankaandYalaNationalParkisoneofthebestplacesintheworldtoseewildanimalsincludingleopards豹andelephants.TasteSriLankaiscelebratedforitsexcellentfoodwithaparticularemphasisonfreshfruitandvegetablesonmenuseverywherE.Fishandseafoodareabigpartofthelocaldiet.Didyouknow?SriLankaisknownforitsteabutitisalsotheworld’slargestproducerandexporterofcinnamon肉桂.56.WhichofthefollowingisaculturalreliccentreofSriLanka?A..AnuradhapurA.B.KandyC.PolonnaruwA.D.Colombo.57.IfyouwanttoknowsomethingaboutDiwaliyou’dbettergotherein________..A.September.B.October.C.May.D.November.58.WelearnfromthepassagethatSriLanka_________..A.isinthePacificOceanB.hasonlyflightstoLondonC.istheworld’slargestproducerofteaD.isfamousforitsexcellentfood59.Theauthorwrotethearticleinorderto_______..A.introducethepicturesquelandscapeofSriLankaB.letreadersknowwhatisfamousforinSriLankaC.letpeoplegetmoretravelinformationaboutSriLankaD.makeSriLankawellknownthroughouttheworld

Haveyoueverwonderedwhybirdssing?Maybeyouthoughtthattheywerejusthappy.Afterallyouprobablysingorwhistlewhenyouarehappy.Somescientistsbelievethatbirdsdosingsomeofthetimejustbecausetheyarehappy.Howevertheysingmostofthetimeforaverydifferentreason.Theirsingingisactuallyawarningtootherbirdstostayoutoftheirterritory.Doyouknowwhataterritoryis?A.territoryisanareathatananimalusuallythemaleclaimsasitsown.OnlyheandhisfamilyarewelcometherE.NootherfamiliesofthesamespeciesarewelcomE.YouryardandhouseareyourterritorywhereonlyyourfamilyandfriendsarewelcomE.Ifastrangershouldenteryourterritoryandthreatenyouyoumightshout.Probablythiswouldbeenoughtofrightenhimaway.Ifsoyouhaveactuallyscaredthestrangerawaywithouthavingtofighthim.A.birddoesthesamething.Butheexpectsanoutsideralmostanytimeespeciallyatnestingseason.Soheisscreamingallthetimewhetherhecanseeanoutsiderornot.Thisscreamingiswhatwecallabird’ssonganditisusuallyenoughtokeepanoutsideraway.Birdssingloudestinthespringwhentheyaretryingtoattractamateandwarnothersnottoentertheterritoryoftheirs.Youcanseethatbirdshavealanguagealltheirown.Mostofithastodowithattractingmatesandsettingupterritories.50.Accordingtothepassagemostofthetimebirds’singingisactually.A.anexpressionofhappinessB.awayofwarningC.anexpressionofangerD.awayofgreeting51.Whatisabird’sterritory?A.A.placewherefamiliesofotherspeciesarenotaccepteD.B.A.placewhereabirdmayshoutatthetopofitsvoicE.C.Anareaforwhichbirdsfightagainsteachother.D.Anareawhichabirdconsiderstobeitsown.52.Whydobirdskeeponsingingatnestingseason?A.Becausetheywanttoinvitemorefriends.B.Becausetheirsinginghelpsfrightenoutsidersaway.C.BecausetheywanttofindoutsidersarounD.D.Becausetheirsinginghelpsgetridoftheirfears.53.Howdoesthewriterexplainbirds’singing?A.Bycomparingbirdswithhumanbeings.B.Byreportingexperimentresults.C.Bydescribingbirds’dailylifE.D.Bytellingabird’sstory.

Mostpeoplefeellonelysometimesbutitusuallyonlylastsbetweenafewminutesandafewhours.Thiskindoflonelinessisnotserious.Infactitisquitenormal.Forsomepeoplethoughlonelinesscanlastforyears.Nowresearcherssaytherearethreedifferenttypesofloneliness.Thefirstkindoflonelinessistemporary暂时的.ThisisthemostcommontypE.Itusuallydisappearsquicklyanddoesnotrequireanyspecialattention.Thesecondkindsituationallonelinessisanaturalresultoraparticularsituation----forexampleafamilyproblemthedeathofalovedoneormovingtoanewplacE.Althoughthiskindoflonelinesscancausephysicalproblemssuchasheadachesandsleeplessnessitusuallydoesnotlastformorethanayear.ThethirdkindoflonelinessisthemostseverE.Unlikethesecondtypechronic长期的lonelinessusuallylastmorethantwoyearsandhasnospecificcausE.Peoplewhoexperiencehabituallonelinesshaveproblemssocializingandbecomingclosetoothers.Unfortunatelymanychronicallylonepeoplethinkthereislittleornothingtheycandotoimprovetheircondition.Psychologists心理学家agreethatoneimportantfactinlonelinessisaperson’ssocialcontacts接触E.gfriendsfamilymembersco-workersetC.Wedependonvariouspeoplefordifferentreasons.Forinstanceourfamiliesgiveusemotionalsupportourparentsandteachersgiveusguidanceandourfriendssharesimilarinterestsandactivities.HoweverpsychologistshavefoundthatthoughlonepeoplemayhavemanysocialcontactstheysometimesfeeltheyshouldhavemorE.Theyquestiontheirownpopularity.Psychologistsaretryingtofindwaystohelphabituallylonelypeoplefortworeasons:theyareunhappyandunabletosocializeandthereisaconnectionbetweenchroniclonelinessandseriousillnesssuchasheartdiseasE.Whiletemporaryandsituationallonelinesscanbeanormalhealthypartoflifechroniclonelinesscanbeaverysadandsometimesdangerouscondition.56.Howwouldyoutreattemporarylonelinessaccordingtothepassage?A.TalktofriendsB.JustignoreitC.GotoseeadoctorD.Askyourteachersforguidance57.Thetopicofthe4thparagraphisthat_______________.A.lonelypeopledon’thavemanyfriendsB.lonelypeopledon’thavemanysocialproblemsC.oneproblemoflonelinessisaperson’ssocialcontactsD.wedependonvariouspeoplefordifferentreasons58.Whydopsychologistswanttohelpchronicallylonelypeople?A.ChroniclonelinesscancausefamilyproblemsB.ChroniclonelinesscancauseseriousillnessC.ChroniclonelinesscannotbeovercomeD.ABandC.areallcorrect59.Whatisthebesttitleofthepassage?A.ThreekindsofLonelinessB.LonelinessandDiseasesC.LonelinessandSocialContactsD.ChronicLoneliness

Ifcarshadwingstheycouldflyandthatjustmighthappenbeginningin2012.ThecompanyTerrafugiabasedinWoburnMassachusettssaysitplanstodeliveritscar­planetheTransitiontocustomersbytheendof2012.It’sthenext‘wow’vehiclesaidTerrafugiavicepresidentRichardGersh.AnybodycanbuyaFerraributaswesayFerrarisdon’tfly.Thecarplanehaswingsthatunfoldforflying—aprocessthecompanysaystakesoneminute—andfoldbackupfordriving.A.runwayisstillrequiredtotakeoffandlanD.TheTransitionisbeingmarketedmoreasaplanethatdrivesthanacarthatfliesalthoughitisboth.ThecompanyhasbeenworkingwithFAAtomeetaircraftregulationsandwiththeNationalHighwayTrafficSafetyAdministrationtomeetvehiclesafetyregulations.ThecompanyisaimingtoselltheTransitiontoprivatepilotsasamoreconvenientandcheaperwaytofly.Theysayitsavesyouthetroubleoftryingtofindanothermodeoftransportationtogettoandfromairports:Youdrivethecartotheairportandthenyou’regoodtogo.WhenyoulandyoufoldupthewingsandhittheroaD.Therearenoexpensiveparkingfeesbecauseyoudon’thavetostoreitatanairport—youparkitinthegarageathomE.Thecar­planeisdesignedtoflyprimarilyunder10000feet.Ithasamaximumtakeoffweightof1430poundsincludingfuelandpassengers.TerrafugiasaystheTransitionreducesthepotentialforanaccidentbyallowingpilotstodriveunderbadweatherinsteadofflyingintomarginal临界conditions.TheTransition’spricetag:$194000.ButtheremaybeadditionalchargesforoptionslikearadiotransponderorGPS.Anotheroptionisafull­planeparachutE.IfyougetintoaveryawfulsituationitisthenecessarysafetyoptionGershsaiD.Sofarthecompanyhasmorethan70orderswithdeposits.We’reworkingverycloselywiththembuttherearestillsomeremainingstepsBrownsaiD.66.Wecanlearnfromthefirstparagraphthat________.A.peoplemightdriveacar­planein2012B.car­planeswillbepopularin2012C.bothTransitionandFerraricantakeoffandlandD.RichardGershisthevicepresidentofMassachusetts67.Ittakesthecar­planeoneminuteto________.A.foldandunfolditswingsB.meetflyingsafetyregulationsC.landintheairportD.unfoldwingsforflying68.AccordingtothepassagewhichofthefollowingisNOTtrue?A.Thecar­planeneedsarunwaytotakeoffandlanD.B.Thecar­planemayflyashighasnormalplanes.C.TomeetaircraftregulationsthecompanyhasbeenworkingwithFAA.D.Peoplecanparkthecar­planeinthegarageattheirhomE.69.Theunderlinedworditinthelastbutoneparagraphrefersto________.A.theradioB.thetransponderC.thefull­planeparachuteD.theGPS70.What’sthebesttitleforthepassage?A.CarsWithWingsCanFlyAsFastAsPlaneB.WhichToChoose:A.FerrariOrA.Car­Plane?C.AMoreConvenientAndCheaperWayToFlyD.CarsWithWingsMayBeJustAroundTheCorner

Stormsbroughtatornadoand2-mch-thinhail冰雹toWyomingonThursdayadayafterthunderstormshitpartsofWyomingandColoradowithgolfball-sizedhailandheavyrain.ThreehomeswereheavilydamagedbythetornadoonThursdayand10to12otherbuildingsalsohaddamage.Onepersonwastreatedatahospitalforacutonthehead.Somepowerlineswerealsodowntotheground.ThetornadotoucheddownbrieflynearWheatlandnorthofCheyenneinapopulatedareaofficialssaid.HailthesizeofgolfballswasreportedintheWheatlandareaand2-inch-thinhailwasreportedinLaramie.Forecasterssaidthunderstormsthatcanspawntornadoescoulddevelopandfloodingwaspossible.Citizensshouldbecareful.AfirewhichisbelievedtohavebeenstartedbylightningonSundaynighthasburnedabout3500acresabout20milesnorthwestofWheatland.About120firefightersaidedbyhelicoptersandairtankerswereonthescene.Therainprovidedsomehelpforfirefighterswhofullycontrolleda227-acrewildfireinnorthernColoradobuttheweatherinthebeginninghurteffortstocontrola6000-acreblaze火焰inWyoming'sMedicineBowNationalForest.StormspassedclosetotheWyomingfirebutmostlybroughtwindsthatfannedtheflames.Rainandhailfelllaterbutdidn'tmakeabigdifferencesaidfirespokeswomanBethHermanson.KyleFredinworkingfortheNationalWeatherServiceinDenversaidthebeginningofJuneisthepeaktimeforsuchsevereweatherinColorado.Mostofthestatehasbeenexperiencingmoderate-to-extremedroughtconditions.60.WhatdoestheunderlinedwordspawninParagraph2mean.A.CauseB.InvolveC.TolerateD.Reject61.Fromthetextwecanlearnthewildfireabout20milesnorthwestofWheatland____.A.hasbeenburningforawholeweekB.wasstartedbysomeoneonpurposeC.diedoutimmediatelytheraincameD.wasveryhardforfirefighterstocontrol62.Theweatherhurteffortstocontrola6000-acreblazebecause____.A.stormsdidn'tpassclosetotheWyomingfireB.heavywindsstoppedfirefightersfromworkingC.rainandhailstoppedfirefightersfromworkingD.theflamesbecameworseafterthestormsbroughtwinds63.AccordingtowhatKyleFredinsaidwecaninferthat_____.A.ColoradohasneverexperiencedsuchsevereweatherbeforeB.it'snotstrangethatastormhitColoradoatthebeginningofJuneC.moderate-to-extremedroughtconditionsoftenleadtothunderstormsD.Coloradowillbefrequentlyhitbysevereweatherinthefollowingmonths

Adisplayofsupernaturalexistenceorisitanalieninterference?QuestionsstillremainunansweredwhileexpertsarestillresearchingontherealreasonbehindstonesofDeathValleythatslidebythemselveswithouttheinterferenceofhumansoranimals.InthesouthwestoftheUSAliesthismysteriousvalley—popularasthehottestanddriestlocationinNorthAmericaanditconsistsofadrylakebednamedRacetrackPlaya.SailingStonesofDeathValleyareallovertheRacetrackPlayA.TheplayaaflatbedofmudwitnessesthesailingofsuchstonesonitsbrokensurfacE.Thetracksformedbythesesailingstonesareusually2.5cmdeepand4—12incheswideandlastusuallyforthreetofouryears.Thisphenomenonisamysteryandtheexactreasonisstillunderresearch.Someresearchersbelieveacombinationofnaturaleventscausethesestonestosail.ThisareaofDeathValleycangetverycoldinthewinternightscausingalayeroficetoformonthebakedsmoothsoil.Therocksaregentlypushedacrossthesurfacebytheice-coatedgroundandstrongwinds.Someresearchersquestionthistheory.Somepointtheconditionshavetobejustrightforthesestonestomoveperhapsoccurringonceeveryonetothreeyears.Theysaytherearesomeotherunknownfactors.Toaddmoretothisstrangephenomenonthesesailingstonesdon’tfollowaspecificpaththatcouldbepredictedwheniceandwindarepresent.Somestonesthatarephysicallyneareachothermaystartoutsailinginaparalleldirectionbutthenonewouldstopwhiletheotheronecontinues.OtherresearchersbelievingthatthemovementsofstonesareduetoMilkyWay.Thepositionofstarscreateamagneticstructureinawaywhichmakesthestonesslideinthevalleyjustlikethetidesinoceanswhicharesometimescausedbythegravitation万有引力pullofthemoon.Sofarthesemysteriousstonesandtheirmovementsremainunfilmedandunobservedbyhumaneyes.60.Thefirstsentenceofthepassageisto___________.A.getreadersinterestedinthesubjectB.showhowconfusedresearchersgotC.indicatetheauthor’sstrongcuriosityD.telltheresultsofresearchers’studies61.HowmanyopinionsaboutthereasonbehindSailingStonesofDeathValleyarementioned?A.2.B.3.C.4.D.5.62.WhichofthefollowingstatementsisNOTtrue?A.Themysteryofsailingstoneshasn’tbeensolvedyet.B.SofarthepathofthesailingstonescanbepredicteD.C.DeathValleyisthehottestanddriestplaceinNorthAmericA.D.Thetracksformedbythesailingstonesusuallylast3to4years.63.Whatcanbethebesttitleforthepassage?A.DeathValleyB.AnAlienInterventionC.A.PuzzlingPhenomenonD.SailingStonesofDeathValley

Forthosewhohavelonelynightsandhavetroublefallingasleepheisprovingtheidealpartner.Thisisamanwhodoesnotsnore打鼾inbeD.Andheishappytowrapacomfortingarmaroundhisdearestuntilmorningarrives.Hedoesexist.Heisthebody-shapedpillowthelatestsleepingaidfromJapan.Thispillowcomeswithoutaheadandisfilledwithfoam.It’smadebyKameoandhasabodyandaflexiblearmthatcanbecurledarounditsowner.About1000ofthepillowshavebeensoldsincetheywentonsaleinJapanlastyearandmanybuyerssaytheyarepleasedwiththeirsleepingcompanion.ThispillowmakesmefeelrelaxedbecauseIcanholdthearmandfeelsomethingwarmatmysidesaid34-year-oldradioDJJunkoSuzuki.ButaccordingtoKameothepillowismorethanjustanemotionalhelpforthosetiredofspendingthenightalonE.Anditisshapedthefirmsaystosupportitspartneronbothsidestoensureanightofgoodsleep.Theideaistocurlupinbetweenthebodyandtheflexiblearm.Theheadjustrestsonthepillow’sarmmuscles.MygrandmotherusedtosaythatthereisnomorecomfortablepillowthananotherpersonsaidthefirmpresidentTomokiKakehashi.SoIthoughtthatmaybepeoplewouldwanttosleeponapillowshapedlikeanarm.ThepillowsonsaleonlyinJapanforthemomentcost8500yenaroundUS$80eachandcomewithshirt-orshirt-shapedpillowcoversinbluepinkorgreen.68.Whichofthefollowingstatementsisn’tmentionedinthetext?A.Manybuyersaresatisfiedwiththebody-shapedpillow.B.ThepillowsaresoldonlyinJapanatpresent.C.TheinventordecidedtodevelopnewmarketintheUS.D.Theideaofbody-shapedpillowisfromwhatanoldladysaiD.69.Theunderlinedwordinparagraph3and6Kameomaybethenameof_____.A.amanagerB.thefirmC.abuyerD.anotherradioDJ70.Thepurposeofthepassageseems_____.A.tointroducethelatestsleepingaidthebody-shapedpillowB.toadvisepeopletousethebody-shapedpillowC.totellhowthebody-shapedpillowisinventedD.totellhowthebody-shapedpillowworks

Whenaskedwhattheyhavedonetohelpprotecttheenvironmentmostpeoplewillalmostmentionrecycling.RecyclinginthehomeisveryimportantofcoursE.HoweverbeingforcedtorecycleoftenmeanswealreadyhavemorematerialthanweneeD.Wearedealingwiththeresultsofthatover–consumptioninthegreenestwaypossiblebutitwouldbefarbetterifwedidnotneedtobringsomuchmaterialhomeinthefirstplacE.Thetotalamountofpackaginghasincreasedby12%between1999and2005.Itnowmakesupathirdofatypicalhousehold’swasteintheUK.InmanysupermarketsnowadaysfooditemsarepackagedtwicewithplasticandcardboarD.Toomuchpackagingisdoingseriousdamagetotheenvironment.TheUKforexampleisrunningoutofitforburyingthisunnecessarywastE.Ifsuchpackagingisburntitgivesoffgreenhousegaseswhichgoontocausethegreenhouseeffect.Recyclinghelpsbuttheprocessitselfusesenergy.ThesolutionisnottoproducesuchitemsinthefirstplacE.Foodwasteisaseriousproblemtoo.ToomanysupermarketsencouragecustomerstobuymorethantheyneeD.HoweverfewofthemarecomingroundtotheideathatthiscannotcontinueencouragingcustomerstoreusetheirplasticbagsforexamplE.Butthisisnotjustaboutsupermarkets.Itisaboutallofus.Wehavelearnedtoassociatepackagingwithquality.Wehavelearnedtothinkthatsomethingunpackagedisofpoorquality.ThisisespeciallytrueoffooD.Butitisalsoappliedtoawiderangeofconsumerproductswhichoftenhavefarmorepackagingthannecessary.TherearesignsofhopE.AsmoreofusrecyclewearebeginningtorealizejusthowmuchunnecessarymaterialsarecollecteD.WeneedtofacethewastefulnessofourconsumerculturebutwehaveamountaintoclimB.66.Theunderlinedphrasethatover-consumptionreferto______________.A.Havingmorematerialthanisneeded.B.Recyclingtoomanywastes.C.Makingmoreproductsthannecessary.D.Usingtoomuchpackaging.67.TheauthorusesfiguresinParagraph2toshow___________.A.thetendencyofcuttinghouseholdwasteB.theincreaseofpackagingrecyclingC.therapidgrowthofsupermarketsD.thefactofpackagingoveruse68.Accordingtothetextrecycling___________.A.helpscontrolthegreenhouseeffectB.meansburningpackagingforenergyC.isthesolutiontogasshortageD.leadstoawasteofland69.ItcanbeinferredfromParagraph4that____________.A.Unpackagedproductsareofbadquality.B.Itisimpropertojudgequalitybypackaging.C.Otherproductsarebetterpackagedthanfood.D.Supermarketscaremoreaboutpackaging.70.Whatcanwelearnfromthelastparagraph?A.Peoplelikecollectingrecyclablewastes.B.Needlessmaterialismostlyrecycled.C.Fightingwastefulnessisdifficult.D.Theauthorisproudoftheirconsumerculture.

UrbangrasshopperschangetheirtuneforfemalesgrasshopperGrasshoppersthatliveinnoisyurbanenvironmentsarehavingtochangetheirsongastudyhasfounD.Researcherssuggestthathighlevelsofbackgroundnoisemayaffectthegrasshoppers’matingprocess.Theysaytheinsectsareforcedtoincreasethevolumeofthelow-frequencysectionsoftheircall.ResultsofthestudybyscientistsfromtheUniversityofBielefeldGermanyarepublishedinthejournalFunctionalEcology.Theresearchwhichshowstrafficnoisecouldupsetbow-wingedgrasshoppers’ChorthippusbiguttulusmatingsystemisthefirstofitskindaccordingtoleadresearcherUlrikeLampE.Effectsofman-madenoiseoncommunicationhasonlybeenstudiedwithvertebrates脊椎动物sofarsaidMsLampeaPhDstudentattheUniversityofBielefeld’sDepartmentofEvolutionaryBiology.Thescientistscaught188malebow-wingedgrasshoppersfromnoisyroadsidesandquietrurallocations.AccordingtoMsLampe:Bow-wingedgrasshoppersareagoodmodelorganismtostudysexualselectionbecausefemalescanrespondtomalelovingsongswiththeirownlow-frequencysignaliftheyareattractedtoamalesong.Thegrasshoppersproducetheirmatingcallbyrubbingatoothedfileontheirhind-legsagainstaveinthatislocatedontheirfrontwings.Themale’ssongconsistsofshortphrasesoftwotothreeseconds.ThefirstpartofthecallconsistsofslowertickingsoundsthatincreaseinspeedleadingtoabuzzingsoundtowardstheendofthephrasE.Inordertostimulatethemalestobeginmatingcallsscientistsexposedthemalestoafemaleandrecordedtheresultsinthelaboratory.Theteamthenanalysedthedifferencesbetweentheresultsofeachgroupofgrasshoppers.Resultsshowedthatcomparedtomalesfromrurallocationsurbangrasshoppersshiftthefrequencypeakofthelowerpartoftheirspectrum频谱upwardsMsLampeexplaineD.Thiswouldmakesensetoavoidlow-frequencynoiseastrafficnoisecouldmasksignalsinthatpartofthefrequencyspectrum.Theteam’sfindingsdemonstratethattrafficnoisecouldbeupsettingthegrasshopper’smatingsystem.IncreasednoiselevelscouldaffectgrasshoppercourtshipinseveralwayscommentedMsLampE.Itcouldpreventfemalesfromhearingmalelovingsongsproperlypreventfemalesfromrecognisingmalesoftheirownspeciesorimpairfemales’abilitytoestimatehowattractiveamaleisfromhissong.67.Whatistheusageofthegrasshoppers’songs?A.Tomakeoururbanhearbetter.B.Toattractthemategrasshoppers.C.TofightagainsttheurbannoisE.D.Toattractthefemalegrasshoppers.68.Howdidscientistprovetheirconclusion?A.Byusingstatistics.B.ByarguingatopiC.C.Byquotingperson’stheory.D.Bycomparingtheresults.69.Whatdoestheunderlinedwordmaskmean?A.Cover.B.Affect.C.Prevent.D.Destroy.70.Whatcanbeinferredfromthepassage?A.Urbanenvironmentaffectssomeanimallives.B.UrbangrasshoppershavetochangetheirtunE.C.Grasshoppersshiftthepeakofspectrum.D.Grasshoppersdon’tlikelivinginnoisyurbanareas.

Pollutantscomingfromautomobileoperationhavebeguntocausemanyenvironmentalproblems.Ithasbeencalculatedforexamplethat70%ofthecarbonmonoxide45%ofthenitrogenoxidesand34%ofthehydrocarbon碳氢化合物pollutionintheUnitedStatescanbetraceddirectlytoautomobileexhausts废气.Inadditionrubbermotoroilandothermaterialsaccumulateonroadwaysandarewashedintostreamswitheffectsnearlyasseriousasthoseofuntreatedwastewater.InanefforttoimprovethesituationtheU.S.governmenthasmaderegulationsontheuseoftheconstituents成分ofautomobileexhaustgasthatareknowntocauseairpollution.Theseconstituentsfallroughlyintothreetypes:hydrocarbonsthatpassthroughtheengineunburned;carbonmonoxidealsoaproductofincompleteburning;andnitrogenoxideswhichareformedwhennitrogenandoxygenareincontactathightemperatures.Besidestheirownpoisonouscharacterhydrocarbonsandnitrogenoxidesreactinthepresenceofsunlighttoformharmfulsmog.Carbonmonoxideandhydrocarbonsarerathereasilycontrolledbytheuseofhigherburningtemperaturesinengines.Unfortunatelytheconditionsthatproduceminimumemissionofhydrocarbonstendtoraiseemissionofnitrogenoxides.Inawaythisdifficultyissolvedbyaddingrecycledexhaustgastothefuelmixturethusavoidingtheoversupplyofoxygenthatfavorsformationofnitrogenoxides.Californiawhichhasthemoststrictair-pollutionlawsintheUnitedStatesrequiresfurtherspecialcompoundingofgastocontrolemissionsandseveralstateshaveorderedthatalcoholbemixedwithgasasthiswillreduceemissionsofthecarbonmonoxideby35percentandthehydrocarbonsby15percent.67.TheauthorusesfiguresinParagraph1________.A.toshowtheconsequenceofautomobileexhaustsB.tohighlighttheimportanceofenvironmentprotectionC.toreflecttherapidgrowthofautomobileuseD.tocriticizethelowqualityofcars68.Howarenitrogenoxidesformedaccordingtothetext?A.Nitrogenandoxygenareputtogetheringreatheat.B.Carbonmonoxideandoxygenaremixedtogether.C.HydrocarbonspassthroughtheenginE.D.Nitrogenisburnedincompletely.69.WhichofthefollowingisNOTtrueaccordingtothetext?A.Hydrocarbonshavenopoisonouscharacterthemselves.B.Smogwillformwhenhydrocarbonsmeetnitrogenoxidesinthesunlight.C.CarbonmonoxidecanbecontrolledintheenginE.D.Theconditionsthatdeceaseemissionofhydrocarbonswillincreaseemissionofnitrogenoxides.70.Accordingtothetextalcoholisaddedtogasinorderto______.A.increaseawarenessofenvironmentprotectionB.controlairpollutionC.increasethefuelefficiencyD.replacegasgradually

CanpeoplechangetheirskincolorwithoutsufferinglikepopkingMichaelJackson?Perhapsyes.Scientistshavefoundthegenethatdeterminesskincolor.Thegenecomesintwoversionsoneofwhichisfoundin99percentofEuropeans.Theotherisfoundin93t0100percentofAfricansresearchersatPennsylvaniaStateUniversityreportinthelatestissueofSciencE.Scientistshavechangedthecolorofadark-stripedzebrafish斑马鱼touniformgoldbyinsertingaversionofthepigment色素geneintoayoungfish.Aswithhumanszebrafishskincolorisdeter-minedbypigmentcellswhichcontainmelanin黑色素.Thenumbersizeanddarknessofmelaninperpigmentcelldetermineskincolor.Itappearsthatlikethegoldenzebrafishlight-skinnedEuropeansalsohaveamutation变异inthegeneformelaninproduction.Thisresultsinlesspigrnentedskin.HoweverKeithChengleaderoftheresearchteampointsoutthatthemutationisdifferentinhu-mananclzebrafishgenes.HumansacquireddarkskininAfricaaboutl.5millionyearsagotoprotectbodiesfromultra-violetraysofthesun.whichcancauseskincancer.ButwhenmodemhumansleaveAfricatoliveinnorthemlatitudestheyneedmoresunlightontheirskintoproducevitaminD.SotherelatedgenechangesaccordingtoCheng.AsianshavethesameversionofthegeneasAfricanssotheyprobablyacquiredtheirlightskinthroughtheactionofsomeothergenethataffectsskincolorsaidCheng.Thenewdiscoverycouldleadtomedicaltreatmentsforskincancer.ltalsocouldleadtoresearchin-towaystochangeskincolorwithoutdamagingitlikechemicaltreatmentdidonMichaelJackson.56.Scientistshavedoneanexperimentonadark-stripedzebrafishinordertoA.finclthedifferentgenesohumans'B.provethehumans'skincolorisdeterminedbythepigmentgeneC.findoutthereasonwhytheAfricans'skincolorisdarkD.fincloutthewaysofchangingpeople'sskincolor57.ltcanbeinferredfromthepassagethat.A.nowadayspeoplewhowanttochangetheirskincolorhavetosuffer8lotfromthedamagecausedbythechemicaltreatmentB.EuropeansandAfricanshavethesamegeneC.thenewdiscoverycouldhelptofindmedicaltreatmentsforskincancerD.therearetwokindsofgenes58.Thepassagemainlytellsusthat.A.scientistshavefoundoutthatpeople'sskincolorisdeterminedbythegeneB.thenewdiscoverycouldleadtoresearchintowaystochangeskincolorsafelyC.popkingMichaelJacksonoftenchangedhisskincolorashelikedD.peoplecannotchangetheirskincolorwithoutanypain59.ThereasonwhyEuropeansarelight-skinnedisprobablythat.A.theyarebomlight-skinnedpeopleB.light-skinnedEuropeanshavemutationinthegeneformelaninproductionC.theyhavefeweractivitiesoutsideD.theypaymuchattentiontoprotectingtheirskin60.Thewriter'sattitudetowarclsthediscoveryis.A.neutralB.negativeC.indifferentD.positive

MemorytheysayisamatterofpracticeandexercisE.Ifyouhavethewishandreallymakeaconsciouseffortthenyoucanquiteeasilyimproveyourabilitytorememberthings.Butevenifyouaresuccessfultherearetimeswhenyourmemoryseemstoplaytricksonyou.Sometimesyourememberthingsthatreallydidnothappen.OnemorninglastweekforexampleIgotupandfoundthatIhadleftthefrontdoorunlockedallnightyetIclearlyrememberlockingitcarefullythenightbeforE.Memorytricksworktheotherwayaswell.OnceinawhileyouremembernotdoingsomethingandthenfindoutthatyoudiD.OnedaylastmonthforexampleIwassittinginabarbershopwaitingformyturntogetahaircutandsuddenlyIrealizedthatIhadgotahaircuttwodaysbeforeatthebarbershopacrossthestreetfrommyofficE.Wealwaysseemtofindsomethingfunnyandamusinginincidentscausedbypeople’sforgetfulnessorabsent-mindedness.Storiesaboutabsent-mindedprofessorshavebeentoldforyearsandwenevergettiredofhearingnewones.Unfortunatelyhoweverabsent-mindednessisnotalwaysfunny.TherearetimeswhentricksofourmemorycancauseusgreattroublE.64.Ifyouwanttohaveagoodmemoryyoushould________.A.forceyourselftorememberthingsB.makeaconsciouseffortofpracticeandexerciseC.neverstoplearningD.tryhardtorememberthings65.WhichofthefollowingstatementsisTRUEaccordingtothepassage?A.Onenightthewriterforgottolockthefrontdoor.B.Onenightthewriterforgothavinglockedthefrontdoor.C.Thewriterrememberedtolockthedoor.D.Thewriterrememberedunlockingthefrontdoor.66.FromthesentenceWenevergettiredofhearingnewoneswecaninferthat.A.weenjoyhearingnewstoriesaboutabsent-mindednessofprofessorsB.wedon’twanttoknowanythingmoreaboutabsent-mindednessofprofessorsC.wewillnevergettiredoflisteningtonewstoriesaboutabsent-mindednessD.absent-mindednesshappensnotonlytoprofessorsbuttomanyotherpeople

HavingBreakfastOrNotWillitmatterifyoudon’ttakeyourbreakfast?A.shorttimeagoatest试验wasgivenintheUnitedStates.Peopleofdifferentagesfrom12to83wereaskedtohaveatest.Duringthetestthesepeopleweregivenallkindsofbreakfastandsometimestheygotnobreakfastatall.Scientists科学家wantedtoseehowwelltheirbodiesworkedwhentheyhadeatendifferentkindsofbreakfast.Theresultsshowthatifapersoneatsarightbreakfastheorshewillworkbetterthanifheorshehasnobreakfast.Ifastudenthasfruiteggsbreadandmilkbeforegoingtoschoolheorshewilllearnmorequicklyandlistenmorecarefullyinclass.Theresultisoppositetowhatsomepeoplethink.Havingnobreakfastwillnothelpyouloseweight减轻体重.Thisisbecausepeoplebecomesohungryatnoonthattheyeattoomuchforlunch.Theywillgainweight增加体重insteadoflosingit.Youwilllosemoreweightifyoureduceyourothermeals.56.Duringthetestthepeopleweregiven________.A.nobreakfastatallB.veryrichbreakfastC.differentfoodsorsometimesnoneD.littlefoodforbreakfast57.Theresultsshowthat________.A.breakfasthaslittletodowithaperson’sworkB.breakfasthasgreateffect影响onworkandstudiesC.apersonwillworkbetterifheonlyhasfruitandmilkD.girlstudentsshouldhavelessforbreakfast58.Accordingto根据thepassagesomepeoplethinkthatifyoudon’thavebreakfastyouwill__________.A.behealthierB.workbetterC.loseweightD.failthetest59.WhichofthefollowingisNOTtrue?A.Itisbadforyourhealthtohavenobreakfast.B.Toolittleforbreakfastandtoomuchforlunchmaymakeyoufatter.C.Ifyoudon’teatmuchforlunchandsupperyoumayloseweight.D.Themorebreakfastyouhavethemorequicklyyou’lllearninclass.

Areyoureadytodoyourbittostopglobalwarming?Doyouwanttolettheworldknowthatyoubelieveitisnotdoingnearlyenoughtofightclimatechange?OnSaturdayMarch29youwillhaveachancetocommunicateyourconcerns—totellOttawaandtheentireworldthatyouaredevotedtodoingyourpart.YoucandoitbyturningoffyourlightsduringEarthHourfrom8p.m.to9p.m.StartedlastyearbytheWorldWildlifeFundinSydneyAustraliaEarthHourthisyearisgoinginternationalwith17citiessignedupsofarincludingToronto.OthersincludeChicagoManilaTelAvivCopenhagenMelbourneandChristchurchNewZealanD.ThechallengeforusTorontonianswillbetoshowweareasdevotedtofightingglobalwarmingasSydneysiderswerelastyearwhenmorethan2.2millionofthemparticipatedandslashedthecity'spoweruseby10percentfortheplannedhour.Ofcourseonehourofdarknessisn’tgoingtostopglobalwarming.ButthethinkingbehindEarthHouristhatitgetspeoplepersonallyinvolveD.Besidesgivingpeopleachancetoregistertheirconcernsoverclimatechangethegoalistogetthemtostartchangingtheirwastefulhabits.Andweallhavethemincludingsomewearen'tevenawareof.Didyouknowforexamplethatyouarestilldrawingpowerifyouleaveyourcellphonechargerpluggedinafterchargingyourphone?Thesameistrueforotherelectronicdevicesthatyouthinkyou'veturnedoff.Ifyouwanttomakeadifferencesignuptodayathttp://www.wwf.ca/EarthHourandmakeapledge宣誓toturnoffyourlightswhenEarthHourarrivesonMarch29.Persuadeyourfriendsco-workersandyouremployeroremployeestodotheirpart.Butdon'twaitforthissymbolicgesturetoraiseawarenessthatweallhavetobepartofthesolution.Starttodaytothinkaboutchangesthatcanbemadeinyourhomeandyourworkplacethatwillcutdownonwasteandgreenhousegasemissions排放.63.Thepassagemainlycallsonpeopleof_____tojoinintheMarch29thactivity.A.SydneyB.TorontoC.theworldD.the17cities64.TheEarthHourmovementmainlyaimstogetpeopleto_______tosaveourearth.A.sensethedangerB.makeapledgeC.performtheirdutiesD.showtheirvalue65.Whichisimpliedinthepassagethatshouldnothappeninourdailylife?66.Thebesttitleforthepassageis_____.A.A.ChancetoHelpSavetheEarthB.A.ChancetoHelpPreventPollutionC.AnHourtoFightAgainstBadHabitsD.AnHourtoKeepClimateUnchanged

Manyanimalsrecognizetheirfoodbecausetheyseeit.Sodohumans.Whenyouseeanappleorapieceofchocolateyouknowthatthesearethingsyoucaneat.YoucanalsouseothersenseswhenyouchooseyourfooD.YoumaylikeitbecauseitsmellsgoodorbecauseittastesgooD.YoumaydislikesometypesoffoodbecausetheydonotlooksmellortasteverynicE.DifferentanimalsusedifferentsensestofindandchoosetheirfooD.A.fewanimalsdependononlyoneoftheirsenseswhilemostanimalsusemorethanonesensE.AlthoughtherearemanydifferenttypesoffoodsomeanimalsspendtheirliveseatingonlyonetypE.Thegiantpandaeatsonlyoneparticulartypeofbamboo竹子.OtheranimalseatonlyonetypeoffoodevenwhengiventhechoicE.A.kindofwhitebutterfly蝴蝶willstayontheleavesofacabbageeventhoughthereareplentyofothervegetablesinthegarden.Howevermostanimalshaveamorevaried多样化diet.Thebeareatsfruitsandfish.Thefoxeatssmallanimalsbirdsandfruits.Thedietoftheseanimalswillbedifferentdependingontheseason.Humanshaveaveryvarieddiet.Weofteneatfoodbecausewelikeitandnotbecauseitisgoodforus.IncountriessuchasFranceandBritainpeopleeatfoodswithtoomuchsugar.Thismakesthemoverweightwhichisbadfortheirhealth.Eatingtoomuchredmeatandanimalproductssuchasbuttercanalsobebadforthehealth.ChoosingtherightfoodthereforehasbecomeanareaofstudyinmodernlifE.58.Wecaninferfromthetextthathumansandanimals_________.A.dependononesenseinchoosingfoodB.arenotsatisfiedwiththeirfoodC.choosefoodinsimilarwaysD.eatentirelydifferentfood59.Whichofthefollowingeatsonlyonetypeoffood?A.Thewhitebutterfly.B.ThesmallbirD.C.Thebear.D.Thefox.60.Certainanimalschangetheirchoiceoffoodwhen___________.A.theseasonchangesB.thefoodcolorchangesC.theymovetodifferentplacesD.theyareattractedbydifferentsmells61.Wecanlearnfromthelastparagraphthat__________.A.foodischosenforagoodreasonB.FrenchandBritishfoodisgoodC.somepeoplehavefewchoicesoffoodD.somepeoplecarelittleabouthealthydiet

Doyoustillremembertheinterestingquestion:whydidthechickencrosstheroad?TogettotheothersidE.MostpeopleknowthisjokE.ButrecentlysomepeoplehavebeenmuchmoreconcernedwithhowthegrizzlybearandmountainlioncancrosstheroaD.MillionsofanimalsdieeachyearonUSroadstheFederalHighwayAdministrationreports.Infactonlyabout80ocelotsanendangeredwildcatexistintheUStoday.Themainreason?Roadkill.Ecopassagesmayhelpanimalscrosstheroadwithoutbeinghitbycars.Theyarepathsbothoverandunderroads.TheseecopassagescanbeextremelyusefulsothatwildlifecanavoidhumanconflictssaidJodiHiltyoftheWildlifeConservationSociety.Butdoanimalsactuallyusetheecopassages?Theanswerisyes.PaulBeierofNorthernArizonaUniversityfoundfootmarksleftbymountainlionsonanecopassagethatwentunderahighway.ThisshowedthatthelionusedthepassagE.Buildersofsomeecopassagestrytomakethemlooklikeanaturalpartofanareabyplantingtreesonandaroundthem.Animalsseemtobecatchingon.Animalsasdifferentassalamandersandgrizzlybearsareusingthebridgesandunderpasses.ThenexttimeyouvisitaparkordrivethroughanareawithalotofwildlifelookarounD.Youmightseeananimaloverpass!51.Thewriterusestheexampleofocelotstoshowthat__________.A.wildanimalshavebecomemoredangerousB.thedrivingconditionshaveimprovedgreatlyC.themeasureforprotectingwildlifefailstoworkD.anincreasingnumberofanimalsarekilledinroadaccidents52.Fromthenewsstoryweknowanecopassageis__________.A.anundergroundpathforcarsB.afencebuiltforthesafetyoftheareaC.abridgeforanimalstogetoverariverD.apassforanimalstocrosstheroad53.Whenthewritersaysthatanimalsseemtobecatchingonhemeans_______.A.animalsbegintorealizethedangersontheroadB.animalsbegintolearntouseecopassagesC.animalsarecrossingtheroadingroupsD.animalsareincreasinginnumber54.Thewriterasksvisitorsanddriverstolookaroundwhentravelingbecause.A.wildanimalsmayattackcarsB.wildanimalsmayjamtheroadC.theymayseewildanimalsintheparkD.theymayseewildanimalsonecopassages

Whyshouldmankindexplorespace?Whyshouldmoneytimeandeffortbespentexploringandresearchingsomethingwithsofewapparentbenefits?WhyshouldresourcesbespentonspaceratherthanonconditionsandpeopleonEarth?ThesearequestionsthatunderstandablyareveryoftenaskeD.Perhapsthebestanswerliesinourgeneticmakeup基因构成ashumanbeings.Whatdroveourancestorstomovefromthetreesintotheplainsandonintoallpossibleareasandenvironments?Thewiderthespreadofaspeciesthebetteritschanceofsurvival.PerhapsthebestreasonforexploringspaceisthisgenetictendencytoexpandwhereverpossiblE.Nearlyeverysuccessfulcivilizationhasexploredbecausebydoingsoanydangersinsurroundingareascanbeidentifiedandpreparedfor.Withoutknowledgewemaybecompletelydestroyedbythedanger.Withknowledgewecanlessenitseffects.Explorationalsoallowsmineralsandotherpotential潜在的resourcestobefounD.Evenifwehavenoimmediateneedofthemtheywillperhapsbeusefullater.Resourcesmaybemorethanphysicalpossessions.Knowledgeortechniqueshavebeenacquiredthroughexploration.Thetechniquesmayhavemedicalapplicationswhichcanimprovethelengthorqualityofourlives.Wehavealreadybenefitedfromotherspin-offsincludingimprovementsinearthquakepredictioninsatellitesforweatherforecastingandincommunicationssystems.Evennon-stickpansandmirroredsunglassesareby-products副产品oftechnologicaldevelopmentsinthespaceindustry!Whilemanyresourcesarespentonwhatseemsasmallreturntheexplorationofspaceallowscreativebraveandintelligentmembersofourspeciestofocusonwhatmayservetosaveus.Whilespacemayholdmanywondersandexplanationsofhowtheuniversewasformedorhowitworksitalsoholdsdangers.ThedangerexistsbutknowledgecanhelphumanbeingstosurvivE.Withouttheabilitytoreachoutacrossspacethechancetosaveourselvesmightnotexist.WhileEarthistheonlyplanetknowntosupportlifesurelytheadaptiveabilityofhumanswouldallowustoliveonotherplanets.ItistruethatthelifestylewouldbedifferentbuthumanlifeandcultureshaveadaptedinthepastandsurelycouldinthefuturE.56.WhydoestheauthormentionthequestionsinParagraph1?A.Toexpresshisdoubts.B.Tocomparedifferentideas.C.Tointroducepointsfordiscussion.D.TodescribetheconditionsonEarth.57.WhatisthereasonforexploringspacebasedonParagraph2?A.Humansarenature-borntodoso.B.Humanshavethetendencytofight.C.HumansmayfindnewsourcesoffooD.D.Humansdon’tliketostayinthesameplacE.58.Theunderlinedwordspin-offsinParagraph4probablyrefersto­­_______.A.survivalchancesB.potentialresourcesC.unexpectedbenefitsD.physicalpossessions59.Whatmakesitpossibleforhumanstoliveonotherplanets?A.Ourgeneticmakeup.B.Resourcesontheearth.C.Theadaptiveabilityofhumans.D.By-productsinspaceexploration.60.Whichofthestatementscanbestsumupthepassage?A.Spaceexplorationhascreatedmanywonders.B.Spaceexplorationprovidesthebestvalueformoney.C.Spaceexplorationcanbenefitscienceandtechnology.D.SpaceexplorationmayhelpusavoidpotentialproblemsonEarth.

HoneyfromtheAfricanforestisnotonlyakindofnaturalsugaritisalsodelicious.Mostpeopleandmanyanimalslikeeatingit.Howevertheonlywayforthemtogetthathoneyistofindawildbees’nestandtakethehoneyfromit.Oftenthesenestsarehighupintreesanditisdifficulttofindthem.InpartsofAfricathoughpeopleandanimalslookingforhoneyhaveastrangeandunexpectedhelper---alittlebirdcalledahoneyguidE.Thehoneyguidedoesnotactuallylikehoneybutitdoeslikethewaxinthebeehives蜂房.Thelittlebirdcannotreachthiswaxwhichisdeepinsidethebees’nest.Sowhenitfindsasuitablenestitlooksforsomeonetohelpit.ThehoneyguidegivesaloudcrythatattractstheattentionofbothpassinganimalsandpeoplE.Onceithastheirattentionitfliesthroughtheforestwaitingfromtimetotimeforcuriousanimalsorpersonasitleadsthemtothenest.Whentheyfinallyarriveatthenestthefollowerreachesintogetatthedelicioushoneyasthebirdpatientlywaitsandwatches.SomeofthehoneyandthewaxalwaysfallstothegroundandthisiswhenthehoneyguidetakesitssharE.Scientistsdonotknowwhythehoneyguidelikeseatingthewaxbutitisverydeterminedinitseffortstogetit.Thebirdsseemtobeabletosmellwaxfromalongdistanceaway.Theywillquicklyarrivewheneverabeekeeperistakinghoneyfromhisbeehivesandwillevenenterchurcheswhenbeeswaxcandlesarebeinglit.58.Whyisitdifficulttofindawildbees’nest?A.It’ssmallinsizE.B.It’shiddenintrees.C.It’scoveredwithwax.D.It’shardtorecognizE.59.WhatdothewordsthefollowerinParagraph2referto?A.A.beeB.A.birdC.A.honeyseeker.D.A.beekeeper.60.Thehoneyguideisspecialintheway_____________.A.itgetsitsfoodB.itgoestochurchC.itsingsintheforestD.itreachesintobees’nest

Thefirstbreath-takingpicturesoftheEarthtakenfromspaceshoweditasasolidballcoveredbybrownlandmassesandblue-greenoceans.WehadneverseentheEarthfromthatdistancebeforE.TousitappearedasthoughtheEarthhadalwayslookedthatwayandalwayswoulD.ScientistsnowknowhoweverthatthesurfaceoftheEarthisnotaspermanentaswehadthought.Scientistsexplainthatthesurfaceofourplanetisalwaysmoving.ContinentsmoveabouttheEarthlikehugeshipsatseA.TheyfloatonpiecesoftheEarth’souterskin.Newouterskiniscreatedasmeltedrockpushedupfrombelowtheoceanfloor.Oldouterskinisdestroyedasitrollsdownintothehotareaandmeltsagain.Onlysincethe1960shavescientistsreallybeguntounderstandthattheplanetEarthisagreatlivingmachinE.Someexpertshavesaidthisnewunderstandingisoneofthemostimportantrevolutionsinscientificthought.Therevolutionisbasedontheworkofscientistswhostudythemovementofthecontinents—asciencecalledplatetectonics.ThemodernstoryofplatetectonicsbeginswiththeGermanscientistAlfredWegener.BeforeWorldWarOneWegenerarguedthatthecontinentshadmovedandwerestillmoving.HesaidtheideafirstoccurredtohimwhenheobservedthatthecoastlinesofSouthAmericaandAfricacouldfittogetherliketwopiecesofapuzzlE.Heproposedthatthetwocontinentsmighthavebeenoneandthensplitapart.Wegenerwasnotthefirstpersontowonderabouttheshapeofthecontinents.About500yearsagoexplorersthoughtaboutitwhentheymadethefirstmapsofAmericas.TheexplorersnotedtheeastcoastofNorthAmericaandSouthAmericawouldfitalmostexactlyintothewestcoastofEuropeandSouthAfricA.WhattheexplorersdidnotdobutWegenerdidwastoinvestigatetheideathatthecontinentsmovE.58.Whatdoesthewritermainlytellusinthepassage?A.Thefirstbreath-takingpicturesoftheEarthtakenfromspacE.B.Human’srecognitionoftheearth’ssurfacE.C.TheGermanscientistAlfredWegener.D.Theearlyexplorers’discovery.59.Whichofthefollowingistrueaccordingtothepassage?A.Wedidn’tseetheEarthfromfarawayuntilwesawthepicturetakeninthespacE.B.Ourancientthoughtthatthesurfaceoftheearthisstill.C.AlfredWegenerwasnotthefirstpersontoinvestigatetheideathatthecontinentsmovE.D.ThecoastlineofIndiaandAfricafittogether.60.Thelastwordofthethirdparagraphtectonicsmean________.A.studyofconstructionB.studyofarchitectureC.earthsurfaceD.structuralgeology61.Whatdidtheexplorersfind?A.ThecoastlinesofSouthAmericaandAfricacouldfittogether.B.ThecoastlinesofNorthAmericaandAfricacouldfittogether.C.TheeastcoastlinesofNorthAmericaandthewestcoastofEuropecouldfittogether.D.ThecoastlinesofNorthAmericaandIndiacouldfittogether.

Researchershaveestablishedthatwhenpeoplearementallyengagedbiochemicalchangesoccurinthebrainthatallowittoactmoreeffectivelyincognitive认知的areassuchasattentionandmemory.ThisistrueregardlessofagE.Peoplewillbealert警觉的andreceptiveiftheyarefacedwithinformationthatgetsthemtothinkaboutthingstheyareinterestedin.AndsomeonewithahistoryofdoingmoreratherthanlesswillgointooldagemorecognitivelysoundthansomeonewhohasnothadanactiveminD.Manyexpertsaresoconvincedofthebenefitsofchallenginginthebrainthattheyareputtingthetheorytoworkintheirownlives.TheideaisnotnecessarilytolearntomemorizelargeamountsofinformationsaysJamesFozardassociatedirectoroftheNationalInstituteofAgeing.Mostofusdon’tneedthatkindofskill.Suchspecifictrainingisoflessinterestthanbeingabletomaintainmentalalertness.Fozardandotherssaytheychallengetheirbrainswithdifferentmentalskillsbothbecausetheyenjoythemandbecausetheyaresurethattheirrangeofactivitieswillhelpthewaytheirbrainswork.GeneCohenactingdirectorofthesameinstitutesuggeststhatpeopleintheiroldageshouldengageinmentalandphysicalactivitiesindividuallyaswellasingroups.Cohensaysthatwearefrequentlyadvisedtokeepphysicallyactiveasweagebutolderpeopleneedtokeepmentallyactiveaswell.ThosewhodoaremorelikelytomaintaintheirintellectualabilitiesandtobegenerallyhappierandbetteradjusteD.ThepointisyouneedtodobothCohensays.Intellectualactivityactuallyinfluencesbrain-cellhealthandsizE.50.Whatisthepassagemainlyabout?A.SpecialmentaltrainingforoldpeoplE.B.Biochemicalchangesinthehumanbrain.C.Theinfluenceofintellectualactivitiesonbrain-cellsizE.D.Theimportanceofmentalactivitiesintheefficiencyofthebrain.51.A.personwhoissaidtobecognitivelyhealthyshould________.A.bealertandreceptiveinmindB.whoarehighlyintelligentC.begoodatdoinggroupworkD.rememberlargequantitiesofinformation52.ThefindingsofJamesandotherscientistsintheirwork_________.A.remainatheorytobefurtherprovedB.havebeenchallengedbymanyotherexpertsC.arepracticedbytheresearchersthemselvesD.havebeengenerallyaccepted53.AccordingtoFozard'sargumentpeoplecanmaketheirbrainsworkmoreefficientlyby_________.A.constantlydoingmemoryworkB.makingfrequentadjustmentsC.goingthroughspecifictrainingD.takingpartinvariousmentalactivities54.WhichofthefollowingstatementswouldCohenmostprobablysupport?A.Olderpeopleshouldkeepmentallyactivebychallengingtheirbrains.B.Nomatterwhetheritisdoneingrouporalonementalactivityisalwaysgoodforbrain-cellhealth.C.Physicalstrengthismoreimportanttoolderpeoplethanmentalhealth.D.Peoplewhoengageinmorementalactivitiesbutlessphysicalonesarealwayshappier.

WehaveallheardofthesmartphoneandmostofuswillhaveonE.NotfarbehindthesmarthomE.InthelatestissueofJournalScienceWashingtonStateUniversity'sDianeCooksaysitwon'tbelongbeforeourhomesactasintelligentagentstopredictourneedsanddealwithtasksthatimproveourhealthenergyefficiencyevensocialmediA.ManyhomesarealreadyhalfwaytherewithcomputershelpingwarmfoodrecordTVshowsandturnoncoffeemakers.Whatwe'retryingtodoisgetthehometothinkaboutwhatyouneedasawholeandusedifferentpartstodotherightthings.shesays.Cookhasbeenworkingonsuchsmarthomessince2006.SometesthomesalreadyshowthatthetechnologycanhelpmonitortheelderlypeopleandremindthemtocompleteordinaryactivitieslikerisingeatingandtakingmedicinE.SimilarlythehomecanitselfcontrolenergyusE.Smarthometechnologiescanrunwashing-machinesatoff-peaktimesturnoffunneededappliances家用电器andputoutlightsinemptyrooms.ManycommunitiesnowaretestingtheconceptofthesmarthomE.Whilethesmartphoneletspeopletaketheirsocialmediawiththemthehomecouldactlikeacar'sBluetoothmakinghands-freeconversationfromanyroomareality.Cameraswillletthepeopletalkfacetofacefromanywhere.Althoughthetechnologyisavailabletechnologieslikein-homecamerasraiseprivacycon­cerns.ThetechnologieslikemanyothersfaceachallengeofbeingacceptedandadoptedsaysCook.Shehasseenthatinparticularwiththeelderlyparticipantsinherstudies.Peoplewillsoonunderstandwhatthesetechnologiesdoandseehowuser-friendlytheyarE.Ibetsometechnologieswilldevelopfastoncethey'restartingtobeuseD.71.AccordingtothepassageallofthefollowingstatementsaboutthesmarthometechnologyareTRUEexceptthat.A.itisacompletelynewconceptB.sometestsarebeingcarriedoutC.ithelpspeopledohouseworkD.itwillsoonbecomeareality72.AccordingtoCookthesmarthometechnologycanbenefit_______.A.theteachersmonitoringtheirstudentsB.thehousewiveswithbabiestoattendC.thenursesinthehospitalnearbyD.theseniorpeoplewhoneedtakingcareof73.AccordingtoParagraph4thesmarthometechnologyhelpspeople_______.A.makemoremoneyB.usenewenergyformsC.improvetheenergyefficiencyD.developgoodhabits74.Oneoftheobstaclesthatpreventthesmarthometechnologyfrombeingacceptedis____A.theconcernaboutpeople'sprivacyB.theconcernaboutthecostfromitC.theconcernaboutthelossoftraditionD.theconcernaboutelderlypeople75.HowdoesCookthinkofthesmarthometechnology?A.usefulbutmuchtoocostly.B.challengingbutpromising.C.convenientandaffordablE.D.user-friendlyandpractical.

What’sdelicioustoeatandcomesinavarietyofcolors?Eggplant!Andnoithasnothingtodowithchickens!Thisstrangelynamedvegetableishoweverasversatileasanegg.Itcanbesteamedfriedandbaked.Itcanbeeatenbyitselforcombinedwithmeatsandothervegetables.EggplantwasfirstgrowninIndiainthe5thcenturyBC.ItspopularitysoonspreadtoChinaandthenthroughoutAsia.FinallyduringtheMiddleAgesthevegetablemadeitswaytoEurope.Atthattimeeggplantwasnottheshinypurplevegetablemostpeopleknowtoday.Insteadit’slikeawhiteegg.Duetothisegg-likeappearanceeggplantgotitsname.InitsearlydaysthevegetablewassobitterthatpeopleoftencalleditamadapplE.Thisnicknamestartedbecausepeoplebelieveditsbitternesswasbadforone’shealth.Peopleactuallythoughteggplantcouldcausemadnessandcancer.Fortunatelytodaypeopleknowthateggplantdoesn'tcauseinsanityorcancer.Infacteggplantissohealthythatitmaypreventcancer.Inadditionthebrainandtheheartbenefitfromthissupervegetable.Sinceit’shighinfibreeggplantcanimprovedigestion.ItalyTurkeyEgyptChinaandJapanaretheleadinggrowersofeggplantintheworldtoday.Dependingonitslocationeggplantmaybepurplegreenorangeoryellow-white.Anditcanbeassmallasatomatooraslargeasacucumber.Dishvarietiesrangefromsimpletocomplexwithallofthembeingdelicious.TodaythousandsofpeoplegatherinLoomisCaliffortheannualLoomisEggplantFestival.Themainactivityatthefestivaliseatingdeliciouseggplantdishes.Thereisplentymoretodoandseethough.Recipecontestsartsandcraftsperformersracesandchildren’sactivitiesallegg-citefestival-goers.Mostpeopleatthefestivalwouldagree-----eggplantisanegg-cellentvegetable.60.Eggplantgotitsnamebecauseofits_____.A.appearanceB.tasteC.colorD.value61.WhichofthefollowingdoesNOTbelongtothequalitiesofeggplant?A.Itcanbecookedinvariousways.B.Itiseasytodigest.C.Itcanpreventcancer.D.Itisvaluableandpriceless.62.Whichofthefollowingistrueaccordingtothepassage?A.EggplantcanbeeatentocurecancerB.Eggplantusedtotastebitter.C.Indiaproducesthemosteggplantintheworldtoday.D.Eggplanthasahistoryofnearly1000years.63.MostpeoplecometotheLoomisEggplantFestivalto_____.A.seeartsandcraftsB.enjoyfoodwitheggplantsC.takepartinrecipecontestsD.promoteeggplant

Aschildrengrowuptheybecomecuriousaboutdifferentkindsofthings.Whentheyarebabiestheyareinterestedinthepartsoftheirbodiesandinthesmilesoftheirmothers.Thentheybecomeinterestedinthephysicalworldaroundthem:theplantstheanimalsthesky.Latertheybecomeinterestedinthethingsthatpeoplehavemade:wheelsbicyclescars.Andwhentheyareadultstheircuriositycontinues.Sometimesthiscuriosityleadstoacareer生涯职业insciencE.ScientistsspendtheirlivestryingtofindoutabouttheworlD.Thosewhoworkwiththeearthsciencesstudytheearththeoceansandtheskies.Otherscientistswhostudylivingthingsworkwiththebiologicalsciences.A.thirdgroupofscientistsstudythephysicalsciencesE.g.physicschemistry.ThesescientistshavealreadydiscoveredalotaboutourworlD.Forexampletheytelluswhyyourheartbeatsfastwhenyourun.Theysaythatwhenyouarequietyourheartnormallybeatssixty-fiveorseventy-fivetimesaminutE.Yourheartisapump泵thatpumpsbloodtoallpartsofthebody.Thebloodcarriesoxygenandnutrition.Whenyourunyourmusclesworkveryhardandusethenutritionthatthebloodcarriestothem.Themusclesneedoxygentoo.Soyourbrainsendsasignaltotheheart.Thesignalmeansthatthemusclesneedmorenutritionandoxygen.Thentheheartbeatsfastandsendsbloodquicklytothemuscles.Itmaybeat90to140timesaminutE.Ofcoursescientistscannotanswerallofourquestions.IfweaskWhydoestheoceanwatertastesalty?scientistswillsaythatthesaltcomesfromrocks.Whenarockgetsveryhotorverycolditcracks.Rainfallsintocracks.Therainthencarriesthesaltintotheearthandintotherivers.Theriverscarrythesaltintotheocean.ButthenweaskWhathappenstothesaltintheocean?Theoceandoesnotgetsaltiereveryyear.Scientistsarenotsureabouttheanswertothisquestion.Weknowalotaboutourworldbuttherearestillmanyanswersthatwedonothaveandwearecurious.53.AccordingtothepassagewhichofthefollowingstatementsisTRUE?A.Peoplearecuriousinthesameway.B.Peopleindifferentcountriesareinterestedindifferentthings.C.Menandwomenarecuriousaboutdifferentthings.D.Peopleofdifferentagesareinterestedindifferentthings54.Scientistswhoworkwiththebiologicalsciencesstudy____.A.theearththeoceansandthesky;B.man-madethingsC.plantsandanimals;D.oceanwater55.Whenyourunyourmusclesneed____.A.morenutritionandoxygen;B.moresignalsC.moresalt;D.water56.A.rockcracks_____.A.inwetregions;B.indryregionsC.atveryhighorverylowtemperatures;D.whensaltywaterfallsin

EveryspringscoresofpeopleflocktotheBuzzardFestivalatHinckleyOhio.Theycometowatchforbuzzards.MostwoulD.BegladjusttotakealookatabuzzarD.Iftheydoseeoneoftheseflyinggarbagecansitwillprobablybecirclinghighinthesky.Fromthereitcanwatchthegroundforsignsofthewasteandthedeadanimalsonwhichitfeeds.ThebuzzardistheugliestbirdintheUnitedStates.InfactitmaywellbetheugliestbirD.intheworlD.IthasasmallbarepinkheaD.Itsthickbodyiscoveredwithdarkroughfeathers.InspiteofitslooksthebuzzardisimportanttothepeopleofHinckley.Itistheirfirstsignofspring.Afterawinterinthesouthbuzzardsreturntotheirhomesinthenorth.IntheHinckleyareatheyalwaysreturnonMarch15.Nooneknowswhy.ButtheyhavecomebacktoHinckleyRidgeonthatdaysureasclocksworkforatleastfortyyears.TheexcitementstartsinFebruary.BythemiddleofMarchithasreachedahighpeak.BetsareplaceD.PrizesgotothepersonwhoseesthefirstbuzzarD.Radiostationsandnewspaperstellofthecomingfestival.AndontheweekendafterMarch15thepeopleofHinckleyholdtheirBuzzardFestival.ThepeoplecomeandlookarounD.Theychat.Theyeattheirfillofpancakesandsausages.ThentheydrivepastBuzzard'sRoostonHinckleyRidgE.A.lotofthemstopneartheroadatthestandsetuptogiveinformationtovisitors.TheretheycanhearfromarecordingthemainfactsaboutthebuzzarD.TheycanseeastuffedbuzzarD.Theycanlookatsomepicturestakenofbuzzardsinotheryears.Withgoodluckandastrongpairoffieldglassestheymaysightoneortwolivebuzzardshighinthesky.Buzzardsmaybeugly.Theymaybeflyinggarbagecans.ButinHinckleytheyarejustaswelcomeastheswallowsinCapistranoCaliforniA.ItwouldbeasadspringindeedifthebuzzardseverfailedtocomebacktoHinckleyRidgE.60.A.goodtitleforthisstorywouldbe__________.A.TheHinckleyBuzzardFestivalB.BuzzardtheUgliestBirdC.WhytheBuzzardHasaPinkHeadD.TheReturnofTheGarbageCan61.Thebuzzardiscalledtheflyinggarbagecanbecauseit__________.A.isuglyB.eatswasteanddeadanimalsC.lookslikeagarbagecanD.collectrubbishontheground62.ThesurprisingthingaboutHinckley'sbuzzardsisthat＿.A.theyspendthewinterinthesouthB.theycomeveryclosetothetownC.theyreturnonthesamedayeachyearD.bothbuzzardsandswallowsreturntoCapistranoonMarch1563.AttheinformationstandvisitorstoHinckley'sBuzzardFestivalcan_________.A.learnsomefactsabout.thebuzzardB.easilyseealivebuzzardC.takesomepictureswiththebackgroundoflivebuzzardsD.feedtheirfillofpancakesandsausagestobuzzards

NewtechnologylinkstheworldasneverbeforE.Ourplanethasshrunk.It’snowaglobalvillagewherecountriesareonlysecondsawaybyfaxorphoneorsatellitelink.Andofcourseourabilitytobenefitfromthishigh-techcommunicationsequipmentisgreatlyenhancedbyforeignlanguageskills.DeeplyinvolvedwiththisnewtechnologyisabreedofmodernbusinesspeoplewhohaveagrowingrespectfortheeconomicvalueofdoingbusinessabroaD.Inmodernmarketssuccessoverseasoftenhelpssupportdomesticbusinessefforts.Overseasassignmentsarebecomingincreasinglyimportanttoadvancementwithinexecutiveranks.TheexecutivestationedinanothercountrynolongerneedfearbeingoutofsightandoutofminD.Heorshecanbesurethattheoverseaseffortiscentraltothecompany’splanforsuccessandthatpromotionsoftenfolloworaccompanyanassignmentabroaD.IfanemployeecansucceedinadifficultassignmentoverseassuperiorswillhavegreaterconfidenceinhisorherabilitytocopebackintheUnitedStateswherecross-culturalconsiderationsandforeignlanguageissuesarebecomingmoreandmoreprevalent普遍的.ThankstoavarietyofrelativelyinexpensivecommunicationsdeviceswithbusinessapplicationsevensmallbusinessesintheUnitedStatesareabletogetintointernationalmarkets.Englishisstilltheinternationallanguageofbusiness.Butthereisanever-growingneedforpeoplewhocanspeakanotherlanguagE.A.secondlanguageisn’tgenerallyrequiredtogetajobinbusinessbuthavinglanguageskillsgivesacandidatetheedgewhenotherqualificationsappeartobeequal.Theemployeepostedabroadwhospeaksthecountry’sprincipallanguagehasanopportunitytofast-forwardcertainnegotiationsandcanhavetheculturalinsighttoknowwhenitisbettertomovemoreslowly.Theemployeeatthehomeofficewhocancommunicatewellwithforeignclientsoverthetelephoneorbyfaxmachineisanobviousassettothefirm.72.Withtheincreaseduseofhigh-techcommunicationsequipmentbusinesspeople________.A.havetogetfamiliarwithmoderntechnologyB.aregainingmoreeconomicbenefitsfromdomesticoperationsC.areattachingmoreimportancetotheiroverseasbusinessD.areeagertoworkoverseas73.InthispassageoutofsightandoutofmindLines2-3ParA.3probablymeans________.A.beingunabletothinkproperlyforlackofinsightB.beingtotallyoutoftouchwithbusinessathomeC.missingopportunitiesforpromotionwhenabroadD.leavingallcareandworrybehind74.Accordingtothepassagewhatisanimportantconsiderationofinternationalcorporationsinemployingpeopletoday?A.Connectionswithbusinessesoverseas.B.Abilitytospeaktheclient’slanguagE.C.Technicalknow-how.D.BusinessexperiencE.75.Theadvantageofemployeeshavingforeignlanguageskillsisthattheycan________.A.bettercontrolthewholenegotiationprocessB.easilyfindnewapproachestomeetmarketneedsC.fast-forwardtheirproposalstoheadquartersD.easilymakefriendswithbusinesspeopleabroad

Plantscan’tcommunicatebymovingormakingsoundsasmostanimalsdo.Insteadplantsproducevolatilecompounds挥发性化合物——chemicalsthateasilychangefromaliquidtoagas.A.flower’ssweetsmellforexamplecomesfromsuchvolatilecompoundstoattractinsectssuchasbugsandbees.Plantscanalsodiscovervolatilecompoundsproducedbyotherplants.A.treeunderattackbyhungryinsetsforinstancemaygiveoffthesechemicalsinordertoletothertreesknowabouttheattack.Inresponsetheothertreesmaysendofftheirchemicalstokeepthebugsaway——orevenchemicalsthatwillattractthebugs’naturalenemies.Nowscientistshavecreatedaquickwaytounderstandwhatplantsaresaying:achemicalsensor传感器calledanelectronicnose.Thee-nosecantellsuchcompoundsasplantsmakE.Whenplantsareattackedscientistssaythee-nosecouldhelpquicklydecidewhetherplantsarebeingeatenbyinsects.Buttodaytheonlywaytospotsuchinsectsistoinspectindividualplantsbyobservingthem.Thisisachallengingtaskformanagersofgreenhousesincludingthosethatcanhousethousandsofplants.Theresearchteamisworkingwithane-nosethatcanrecognizevolatilecompounds.Insidethedevice13sensorschemicallyreactwithvolatilecompoundsbasedontheinteractions相互作用andthenthee-nosewillgiveoffelectronicsignalsthatthescientistscananalyzebyusingcomputersoftwarE.Totestthee-nosetheteampresenteditwithhealthyleavesfromcucumberpepperandtomatoplantsallbeingcommongreenhousecrops.Thenscientistscollectedsamplesoftheairarounddamagedleavesfromeachtypeofcrop.Theseplantshadbeendamagedeitherbyinsectsorbyscientistswhomadeholesintheleaveswithaholepunch打孔器.Thee-noseitturnsoutcanidentifyhealthycucumberpepperandtomatoplantsbasedonthevolatilecompoundstheyproducE.ItcouldalsoidentifytomatoleavesthathadbeendamageD.Butevenmoreimpressivethedevicecouldtellwhichtypeofdamage——byinsectsorwithaholepunch——hadbeendonetothetomatoleaves.Withsomefine-tuning微调adevicelikethee-nosecanonedaybeusedingreenhousestoquicklyspotharmfulbugstheresearcherssay.A.devicelikethiscanalsobeusedtoidentifyfruitsthatareperfectlyripeandreadytopickandeatsaysNataliaDudarevaabiochemistatPurdueUniversityinWestLafayetteIndiawhostudiessmellsofflowersandplants.HopefullyscientistsbelievethedevicecanbringlargebenefitstogreenhousemanagersinthenearfuturE.54.Welearnfromthetextthatplantscommunicatewitheachotherby______.A.makingsomesoundsB.wavingtheirleavesC.producingsomechemicalsD.sendingoutelectronicsignals55.Whatdidthescientistsdotofindoutifthee-noseworked?A.Theyfixed13sensorsinsidethedevicE.B.Theypresenteditwithallcommoncrops.C.Theycollecteddifferentdamagedleaves.D.Theydotestsondamagedandhealthyleaves.56.Accordingtothewriterthemostamazingthingaboutthee-noseisthatitcan______.A.pickoutripefruitsquiteexpertlyB.spottheinsectsinaveryquickwayC.telldifferentdamagestoleavesD.recognizeunhealthytomatoleaves57.Wecaninferfromthelastparagraphthatthee-nose______.A.isunabletotellthesmellofflowersB.isnotyettestedingreenhousesC.isdesignedbyscientistsatPurdueD.ishelpfulinkillingharmfulinsects

Cathyisatetraplegic.Shehasnotbeenabletomoveherarmslegsorspeaksincesufferingastroke中风nearlyfifteenyearsago.Recentlyshelearnedhowtocontrolaroboticarmusingherthoughts.Shenowcanusebrainactivitytoserveherselfadrink.TheAmericanwomanisoneoftwopeoplewhotookpartinaresearchprojectknownasBrainGate2.Theresearchershavespentyearsstudyinghowtohelppeoplewhoaredisabledregainmovementintheirarmsandlegs.Johnwhoisaneuroscientist神经科学家andalsowaspartoftheprojectsaidOurideaistoavoidthatdamagednervoussystemandgodirectlyfromthebraintotheoutsideworldsothebrainsignalscannotcontrolmusclebutcontrolmachinesordevices设备likeacomputeroraroboticarm.Thetwodisabledpeoplehadsmallsensorsconnectedtothepartofthebrainthatcontrolsmovement.Thedevicesmeasuredbrainactivityandsentthatinformationtoacomputer.Thecomputerhasspecialsoftwarethatturnstheinformationintodigitalcommandsforoperatingotherdevices.Theresearchersusedahighlydevelopedroboticarmtorecreatehumanactions.TheBrainGateteamhaditsfirstsuccessin2006.Avictimwasabletousethebrain—computersystemtocontrolacomputermouse.Johnsaysthelatestdevelopmentusingroboticarmsisamajorvictory.AvideoofthelatestexperimentshowsCathyusingtheroboticarmtopickupacupofcoffee.Sheguidesthecuptowardhermouthmovesitforwardanddrinksthroughastraw.LeadresearcherLeighHochbergsaiditwasanunbelievablemoment?Theresearchteamcardedoutalmost200testswithtwodifferentroboticarmswhichwereabletopickuptheirtargetobjects43％to66％ofthetime.Theresearchersarecallingtheinformationverypromising.Buttheysayitwilltakeyearstofullydevelopthetechnologyforeverydayuse.71.WhatcanweknowaboutCathyfromthispassage?A.Sheisanexpertaboutthestroke.B.Sheisadisabledwomanwhocan'twalkatall.C.Sheisascientistandisalsopartoftheproject.D.Sheisaresearchertakingpartintheproject.72.Howdoestheroboticarmwork?73.WhydidLeighHochbergsayitwasanunbelievablemoment?A.Becausethelatestexperimentofusingroboticarmshassucceeded.B.BecausetheBrainGateteamhaditsfirstSuccessin2006.C.Becausethetwodisabledpeoplecanmoveandspeak.D.Becausehewaspartoftheproject.74.Whatcanweinferfromthispassage?A.Thetechnologyhadbeenputintousebefore2006.B.Itwillbeseveralmonthsbeforethetechnologycomesintodailyuse.C.Quiteafewexperimentshavebeencarriedoutforthetechnology.D.Thetworoboticarmscouldn'tpickuptheirtargetobjects.75.What'sthepurposeoftheresearchproject?A.Tohelpthedisabledpeopletomoveandspeak.B.Tohelpthebrain-computersystemtocontrolacomputermouse.C.Tohelpthedisabledpeopleusebrainactivitytoservethemselvesadrink.D.Tohelpthedisabledpeopletogetmovementliketheirarmsandlegsagain.

LondonhasbecomeacyclefriendlyzoneafterthelaunchofanewbikehireschemE.IthasbeendesignedtoencouragemorepeopletocycleinandaroundcentralLondon.SohowdoesitworkFirstyouhavetosignuptotheschemetobesentakey.ThekeywillunlockoneofthebikeswhicharekeptatdockingstationsinandaroundcentralLondon.YouhavetopayanaccessfeeforthekeyandthenyoupayasyougoforthelengthoftimeyouusethebikE.TransportforLondonwhichrunstheschemearehopingtohave6000bikesand400dockingstationsinplacebytheendoftheyear.Thenewhiresystemishopingtoeasecongestion拥挤inLondonandisexpectedtocreateupto40000extracycletripsadayintothecitycenter.LondonMayorBorisJohnstonlaunchedtheschemeandsaidLondonhadbeenfilledwiththousandsofgleamingmachinesthatwilltransformthelookandfeelofourstreetsandbecomeascommonplaceonourroadsasblackcabsandredbuses.HowevertherehavebeenafewproblemssincetheschemewaslaunchedlastFriday.Onthefirstdaysomepeoplefoundtheycouldn'tdocktheirbikeproperlyandtheirusageofthebikehadnotregistereD.TransportforLondondidadmittheyhadbeenexpectingafewteethingproblemsandhavesaidtheywouldn'tchargeforthefirstdayasagestureofgoodwill.Someotherpeoplehavecriticizedthelackofdockingstationsandlocksforthebikesaswellasthepriceitcoststohirethebicycles.Despitethecommentsthegreen-thinkingLondonMayorstillseemsverypositiveaboutthingssayingMycampaignforthecapitaltobecomethegreatestbigcyclingcityintheworldhastakenabigpedal-poweredpushforwards.68.LondonMayorBorisJohnstonlaunchedthenewbikeschemeinorderto___.A.reducetheairpollutionofthecityB.encouragethecitizenstotakeexercisesC.dealwiththecity’strafficproblemsD.increaseemploymentopportunities69.AllthefollowingaretheproblemsoftheschemeEXCEPT________.A.thehighcosttohireabikeB.notregisteringtheirusageofthebikesC.notchargingforthefirstdayoftheschemeD.dockingthebikesproperly70.Fromthepassagewecaninferthat________.A.theLondonMayorisconfidentintheschemeB.theschemewillbecanceledbecauseoftheproblemsC.allthecitizensinLondonsupporttheschemeD.thecyclingrevolutionisnotsuccessful

ThetimeofyearababyisborncanshapewhatprofessiontheywillembarkoninlaterlifeanewstudyhassuggesteD.BeingborninacertainmonthappearstoindicatethepossibilityofwhatjobapersonwillendupwiththestudybytheOfficeforNationalStatisticsfounD.ResearchershaveuncoveredthatthemonthinwhichbabiesareborncouldalsoaffecteverythingfromintelligencetolengthoflifE.A.childborninDecemberismorelikelytobecomeadentistwhilesomeonewhosebirthdayfallsinJanuarywilltendtoadebtcollectortheyfounD.A.FebruarybirthappearstoincreasethechancesofbeinganartistwhileMarchbabiesappeartogoontobecomepilots.MeanwhileAprilandMayaresaidtohaveafairlyevenspreadofprofessionsbirthsinthesummermonthsmeanamuchlowerchanceofbecomingahigh-earningfootballplayerdoctorordentist.Thestudywasgainedbyresearcherswhoanalyzedthebirthmonthsofpeoplein19separateoccupationsusinginformationfromthelastcensus人口普查theDailyMailreporteD.Althoughthesetrendsmaybedifficulttoexplainrelationsbetweenbirthmonthsandspecifichealthproblemshaveascientificbasis.SpringbabiesareatgreaterriskofillnessesincludingschizophreniaAlzheimer’sdiseaseasthmaandautism.Theymayalsobelesscleverthanclassmatesborninotherpartsoftheyear.http://www.ebigear.com/news-115-76605.html63.Whatdoestheunderlinedphraseembarkonreferto?A.landonB.keepintouchwithC.beengagedinD.breakfrom64.AccordingtotheresearchersachildborninMarchislikelytobecome_______.A.adebtcollectorB.apilotC.adentistD.anartist65.Wecanlearnfromthetextthat______.A.themonthbabiesareborncouldonlyaffecthisintelligenceandlengthoflifeB.PeopleborninthesummermonthsaremorelikelytogethighlypaidC.SpringbabiesmayhavethebiggerchancetogetillD.thechoiceofprofessionforAprilandMayisverynarrow66.Whatcanbeincludedfromthepassage?A.ThereexistconnectionsbetweenbirthdateandoccupationsB.ThefatehasbeenalreadydecidedwhenpeoplearebornC.PeopleborninAutumnwouldbemoresuccessfulthanthoseborninSpringD.Thetimeofyearoneisborndecideswhichspecifichealthproblemsonehas

Thepracticeofmagicincludesspecialwordsactionsandobjects.Mostmagicinvolvesapersoncalledamagicianwhoclaimstohavesupernaturalpowers.Magicwords.Toworkmostmagicthemagiciansingsorspeaksspecialwordsinacertainorder.Thesewordsarecalledincantationsorspells.Somespellsformprayerstodemons魔鬼spiritsorothersupernaturalforces.Manysocietiesbelievethemagicwillnotworkunlessthemagicianrecitesthespellsperfectly.Othermagicwordshavenomeaningthoughtheysupposedlypossesspowerwhenspokenbyamagician.MagicactionsaccompanythewordsspokeninperformingmuchmagiC.ManyofthesemovementsactoutthedesiredeffectofthemagiC.Forexampleamagiciantryingtomakerainfallmaysprinkle洒wateronthegrounD.Themagician'scombinedwordsandactionsformaceremony.Magicobjectsincludecertainplantsstonesandotherthingswithsupposedsupernaturalpowers.Anysuchobjectmaybecalledafetish物神.Butthistermoftenreferstoanobject—forexampleacarvingoradriedsnake—honoredbyatribeforitsmagicpowers.Manytribesbelievefetisheshavemagicpowerbecausespiritsliveintheseobjects.Manypeoplecarrymagicobjectscalledamulets护身符toprotectthemselvesfromharm.Manyamuletsarestonesorringsengraved雕刻withmagicsymbols.Themagician.InsomesocietiesnearlyeveryoneknowshowtoworksomemagiC.InothersocietiesonlyexpertspracticemagiC.Magiciansmaybecalledmedicinemenmedicinewomenshamanssorcerersorwitchdoctors.Inmanysocietiesmagiciansmustinherittheirpowers.Inothersanypersonmaybecomeamagicianbystudyingthemagicalarts.Manysocietiesbelievemagiciansmustobservecertainrulesandtaboosforbiddenactionsfortheirspellstowork.Forexampletheymayberequirednottoeatvariousfoodsortoavoidsexualactivityforacertainperiodbeforetheceremony.41.Whatdomagicwordsmeantopeopleinsomesociety?A.TheyhavethepowertokilldevilsB.TheyhavepowerifmagicianrecitestherightspellsC.TheyhavenoeffectatallD.Theycanbeusedwhenevertheywant42.Peoplebelievemagicactionswillhaveaneffectiftheyareaccompaniedby.A.thespellsB.magicobjectsC.stonesorringsengravedwithmagicsymbolsD.medicine43.Whydomanypeoplebelieveinafetish?A.BecauseitisoftenaringwhichisworthalotofmoneyB.BecauseitiscarvedwithmagicsymbolsC.BecausepeoplethinkspiritsliveinitD.Becauseitcanhelpthemwithmanythings44.What'sthebesttitleofthepassage?A.HowMagicWorksB.ThePowerofMagicC.HowtoPracticeMagicD.TheChoiceofMagicians

Modernmanhasclearedtheforestsforfarmlandandforwoodandhasalsocarelesslyburnedthem.Morethanthatthoughhehasalsointerfered干涉withtheinvisiblebondsbetweenthelivingthingsintheforests.Therearemanyexamplesofthiskindofdestruction.Theharmfulnessofman’sinterferencecanbeseeninwhathappenedmanyyearsagointheforestoftheKaibabplateau凯亚巴布高原ofnorthernArizonA.MantriedtoimproveonthenaturalwebofforestlifeanddestroyeditinsteaD.TheKaibabhadastorybookforestoflargesizedpineDouglasfirwhitefirblueandEngelmannspruce.In1882avisitornotedWewho...havewanderedthroughitsforestsandparkshavecometoregarditasthemostenchantingregionithaseverbeenourprivilege特权tovisit.ThiswasalsothelivingplaceoftheRockyMountainmuledeer.Indianshuntedthereeveryautumntogathermeatandskins.Theforestalsohadmountainlionstimberwolvesandbobcatsthatkeptthedeerfrommultiplyingtoorapidly.Thenin1906PresidentTheodoreRooseveltmadetheKaibabanationalgamepreservE.Deerhuntingwasforbidden.Governmenthuntersstartedkillingoffthedeer’senemies.In25years’time6250mountainlionswolvesandbobcatswerekilleD.Beforetheprogramtherewereabout4000deerintheKaibabby1924therewereabout100000.Thedeerateeveryleafandtwigtheycouldreach.ButtherewasnotnearlyenoughfooD.Huntingofdeerwaspermittedagain.Thiscausedaslightdecreaseinthedeerherd鹿群butafargreaterlossresultedfromstarvation饥饿anddiseasE.Some60percentofthedeerherddiedintwowinters.By1930theherdhaddroppedto20000animals.By1942itwasdownto8000.12.ThedestructionoftheenvironmentoftheKaibabresultedfrom.A.turningtheforestintocultivatedlandB.interferingwithnaturalcycleofforestlifeC.forestfirescausedbyman’scarelessnessD.cuttingthetreesforbuildingmaterials13.EngelmannspruceParA.2ismostlikelythenameof.A.atreeB.ananimalC.amountainD.agame14.ThenumberofthedeerintheKaibabhadincreasedenormouslyinyears’timE.A.25B.6C.18D.1215.YearslaterlargenumbersofdeerintheKaibabdiedmainlybecauseof.A.thecoldB.theorganizedkillC.theshortageoffoodD.thepoormanagement