2020上海金山高三英語二模試卷

精選優(yōu)質(zhì)文檔-----傾情為你奉上精選優(yōu)質(zhì)文檔-----傾情為你奉上專心---專注---專業(yè)專心---專注---專業(yè)精選優(yōu)質(zhì)文檔-----傾情為你奉上專心---專注---專業(yè)2020上海金山高三英語二模ListeningComprehensionSectionADirections:InSectionA,youwillheartenshortconversationsbetweentwospeakers.Attheendofeachconversation,aquestionwillbeaskedaboutwhatwassaid.Theconversationsandthequestionswillbespokenonlyonce.Afteryouhearaconversationandthequestionaboutit,readthefourpossibleanswersonyourpaper,anddecidewhichoneisthebestanswertothequestionyouhaveheard.1.A.Inahospital.B.Inaschool.C.Inakindergarten.D.Inatouristoffice.2.A.Improvinghercookingskills.B.TastingthefoodmadebyTom.C.Havingapicnic.D.ShowcasinghertalentstoTom.3.A.Supportive.B.Hesitant.C.Indifferent.D.Disapproving.4.A.InJanuary.B.Untilwintervacation.C.DuringChristmasseason.D.Rightnow.5.A.Thefoundationofthetheatre.B.Achangetothetheatre.C.Theremovaloftheseats.D.Thefigureoftheaudience.6.A.ItcanhelptofindthepatientseasilyB.Itcanrecordpatients'conditions.C.Itgivespatientsmedicaladvice.D.Itmakesrecordsavailabletodoctorsandnurses.7.A.Hedoesn'twanttodraw.B.Hepreferstomakethelabordivisionhimself.C.Heisgoodatdrawing.D.Heishappybecausehedoesn'thavetodraw.8.A.Thekeytothewoman'ssuccess.B.Thechangesonthemarket.C.Themanagementofthewoman'scompany.D.Thefeelingofbeingamanager.9.A.Topaintthedoors.B.Topainttheceiling.C.Tocontinuehisjob.D.Totakethejobhome10.A.Becausesheisaccustomedtothefoodthere.B.Becausethefoodisbettertherethanattheschooldininghall.C.Becauseitisaquietplace.D.Becausetheycan'tgototheschooldininghall.SectionBDirections:InSectionB,youwillhearseveralpassagesandlongerconversations,aftereachpassageorconversation,youwillbeaskedseveralquestions.Thepassagesandtheconversationswillbereadtwice,butthequestionswillbespokenonlyonce.Whenyouhearaquestion,readthefourpossibleanswersonyourpaperanddecidewhichoneisthebestanswertothequestionyouhaveheard.Questions11to13arebasedonthefollowingpassage.11.A.Factorsdeterminingintelligence.B.Astoryofidenticaltwins.C.Theimportanceofintelligence.D.HowtogetahigherIQ.12.A.Becauseonlyonecouldentercollege.B.Becausetheywereabandonedbytheirparents.C.Becausetheirparentsdiedwhentheywereonlybabies.D.Becausethepsychologistsdidanexperimentresearchinghumanintelligence.13.A.Johngotabettereducationthanhisidenticalbrother.Peter.B.Childrengrowingupinwealthyfamiliesaresmarter.C.Environmentisimportanttothedevelopmentofone'sintelligence.D.Anisolatedcommunityhasmoreeducationalopportunities.Questions14through16arebasedonthefollowingpassage.14.A.Unwrappinganewalbum.B.Havinganewly-boughtcar.C.Enteringanewly-purchasedhouse.D.Havingaccesstoanonlineaccount.15.A.ItisnicetosharetheaccountonAmazon.B.Thesharingeconomymakesfulluseofcars.C.Consumersconsiderownershipmoreimportantthanaccess.D.Thesharingeconomymakesclearrelationshipbetweenconsumersandproducts.16.A.Thesharingeconomydevelopscarmanufacturing.B.Itisgoodforenvironmenttoincreasetheusageofgoods.C.Thesharingeconomyreshapesthemarketandbenefitspeople.D.Inthesharingeconomy,companiesbridgethegapbetweenpeopleandresources.Questions17and18arebasedonthefollowingconversation.17.A.Products.B.Locations.C.Coffeemakingtechniques.D.Staffquality.18.A.Shemadeaquestionnaire.B.Shetalkedwithcustomers.C.ShewroteahandbookfortheemployeesD.SheappliedforajobatStarbucks.19.A.Customersareespeciallyconcernedabouttheserviceofacafe.B.Themoreexpensivethecoffeebeansandmilk,thebetterthecoffeeis.C.Customerswantmorevarietiesofcoffee.D.Customersrelyonthebrandimagewhentheyaremakingchoices.20.A.Becausethemanualwillbethelatestversion.B.Becauseitwilltellcustomersdetailedproductinformation.C.Becauseitincludesimportantpoliciesandprocedures.D.Becauseemployeesenjoyreadingit.II.GrammarandVocabularySectionADirections:Afterreadingthepassagebelow,fillintheblankstomakethepassagecoherentandgrammaticallycorrect.Fortheblankswithagivenword,fillineachblankwiththeproperformofthegivenword;fortheotherblanks,useonewordthatbestfitseachblank.AbanondistractedwalkingYoucan’twalkdownthestreetwithoutpassingso-called“smart-phonezombies（僵尸）.”Theyaretooabsorbedintheirscreen(21)_________(watch)wheretheyaregoing.Almostfourintenpeopleadmithavingsufferedatechnology-relatedsmallaccident(22)_________theypaymoreattentiontotheirelectronicdevicethantothepavement.NowthecityofHonolulu,Hawaii,hasdecidedit’stimetotakeimmediateactionandmakeitillegaltocrosstheroadwhileusingamobilephone.Those(23)_________(catch)usingphones,tabletsorotherelectronicdevicesatcrossingpointscouldfaceafineofupto$100.HonoluluisthefirstmajorU.S.citytoban(24)_________iscalled“distractedwalking.”Itcomesafterastudyfoundthere(25)_________(be)morethan11,000injuriesintheUnitedStatesresultingfromphone-relateddistractionwhilewalkinginthepastfewyears.Toexplainthedecision,mayorKirkCaldwellsaid,“Weholdtheunfortunatehonorofbeingamajorcity(26)_________morepedestriansarehitincrosswalksthanalmostanyothercityinthecountry.”Underthefinesystems.(27)_________breaksthislawforthefirsttimewillgetafineof$15to$35.Peoplebreakingthelawforasecondorthirdtimewillgeta$99fine.Thelaw,whichiscalledtheDistractedWalkingLaw,doespermitanexception.Pedestrians(28)_________usesuchdevicesinthestreettocallemergencyservicesandrescueworkers,suchasfirefightersandpoliceofficers.Ifyoustillwanttotextwhilewalking,youcouldavoid(29)_________(fine)inHonolulubyusingavoice-controlleddigitalassistantsuchasSiriorGoogleAssistant.Oryoucouldjustwait(30)_________youareagain,safely,offthestreet.SectionBDirections:Fillineachblankwithaproperwordchosenfromthebox.Eachwordcanbeusedonlyonce.Notethatthereisonewordmorethanyouneed.A.parentalB.balanceC.declinedD.depositE.downloadedF.engagingG.financialH.immediatelyI.listingJ.deliberatelyK.purchasesGivingkidsallowancesinthesmart-phoneAllowancesareaconstant.Nomatterhowmuchtechnologyinterfereswiththeparent-childrelationship,kidsstillwantmoneyandparentsstillwanttoimpart（賦予）abasicworkethic.Butputtingstickersonchore（日常事務(wù)）chartsanddroppingcoinsinpiggybanksdon’tcutitwiththesmart-phonegeneration.Parentsinsearchofmore_____31_____waystoteachchildrenthevalueofmoneyareturningtoallowance-trackingapps,wherekidscanseetheir______32______riseandfallinrealtime.BonnieKoon,amotherofthreeinCrawfordville,Fla.,usedtopostacalendaronherrefrigerator_____33______herkidschores,totheembarrassmentofher16-year-oldtwins.AfterseeingaFacebookadfortheappGreen-light,she____34_____it.Green-lightlinkstoparents’bankaccountssothatthepayoutcanbeseamless.Parentscanencouragesavingbypayinginterestonthemoneythatisn’tspent____35____--interestoutoftheparents’ownpockets,ofcourse.It’sthefirsttasteof____36____freedomformanykids,andit’ssetinarelativelysafeenvironment.Parentscandeterminespendinglimitsandchoosetheretailers（零售商）whereachildcanmake_____37_____.Ifachildattemptstobuysomethingatanunapprovedstoreortospendmorethanthelimit,thetransaction（交易）is_____38_____andparentsgetanotification.Andifakidlosesthecard,parentscanimmediatelycancelitfromtheapp.OneofMs.Koon’stwins.Brenna,worksparttimeatarestaurant.She’sputtinghalfofherpaycheckintoacar-insurancesavingsfundshesetupintheapp,whitthegoalofsaving$450byJuly.Witheach_____39______,theappgivesBrennaaprogressupdate.Someparentsmightworrythatrelyingonappstogetkidstodochoresonlyencouragesthemtobeontheirphonesmore.Butparentswhohavechosenthisapproacharguethattheyaremeetingtheirkidswheretheyareandthatittakesthe_____40_____nagging（嘮叨）outoftheequation.Thereal-timelookattheiraccountsmakestheconceptsofsavingandspendingmoretangiblethanreviewingabankstatement.III.ReadingComprehensionSectionADirections:ForeachblankinthefollowingpassagetherearefourwordsorphrasesmarkedA,B,CandD.Fillineachblankwiththewordorphrasethatbestfitsthecontext.IfyouliketotakeawalkinthewoodsintheUnitedStatesoryouprefertodecorateatreeatChristmas,youshouldknowthatclimatechangeismakingbothofthoseactivitiesalotmore____41____.Lookingattwo____42____andeconomicallyimportantspecies--theDouglasfirandthePonderosapine--scientistsfoundthatfiresanddrought_____43_____byclimatechangemakenewgrowthdifficult,especiallyinlow-elevationforests,accordingtoastudypublishedMondayintheProceedingsoftheNationalAcademyofSciences.SomeforestsinfourregionsinCalifornia,Colorado,theNorthernRockiesandthesouthwesternpartoftheUnitedStateshavecrossed“a(n)____44____climatetipping（轉(zhuǎn)折）pointforpost-firetreegeneration,”thestudysays.Climateconditionsoverthepast20yearshave_____45_____changesthatwouldhavetakendecadesorevencenturiesto____46____acrossbroadregionsofthecountry.Thisisleadingtothesudden_____47_____oftreesandmakingtheselandsincreasinglyunsuitablefortreeregeneration.“Climatechangesis_____48_____ourforestsnow,notjustinsomedistantfuture.Maybeinareaswheretherearereally_____49_____seedsources,therecouldbesometrees,butitisbecomingreallyhardtogetthesetreesbackduetoclimatechange,”saidstudyco-authorKimDavis.Theproblemprobablywon’tgetanybetter,asclimatechangeismakingintensewildfiresmuchmore_____50_____.Westernforesterssaythereusedtobeafireseason.Butdevastatingand____51____fireshavebecomearealityallyearlong.In2018,firecostCaliforniamorethan$9.05billion,accordingtotheUSAinsurancecommissioner,thedeadliestandmostdestructivewildfiresseasoninthe______52______history.Ahighernumberoffiresandlowseedavailabilitymeansahighprobabilitythatthesetreesintheseregionswon’tcomeback,Davissaid.Thisstudy_____53______onthedriestandhottestareasoftheWesternforests,butresearcherswillnexttrytofocusonhowmuchwillbeimpacted._____54____,therearesomethingspeoplecandotoeasesomeofthisproblem.Forestmanagementplansthatreducehigh-severityburnscanhelp.Increasingly,forestmanagersareconsideringallowingsomefirestoburnundermoremoderateconditions,Davissaid,Forest_____55_____.41.A.convenientB.difficultC.encouragingD.frustrating42.A.ecologicallyB.apparentlyC.physicallyD.financially43.A.destroyedB.worsenedC.extendedD.established44.A.necessaryB.enormousC.criticalD.invisible45.A.acceleratedB.delayedC.eliminatedD.strengthened46.A.transformB.spreadC.preserveD.escape47.A.extinctionB.declineC.tragedyD.increase48.A.sustainingB.abandoningC.facilitatingD.endangering49.A.sufficientB.limitedC.moderateD.approximate50.occasionalB.commonC.essentialD.temporary51.A.astonishingB.hopelessC.costlyD.irreversible52.A.worldB.stateC.humanD.forest53.A.concentratedB.dependedC.insistedD.commented54.A.AsaresultB.ForexampleC.InfactD.What’smore55.A.saversB.managersC.researchersD.advocatesSectionBDirections:Readthefollowingthreepassages.Eachpassageisfollowedbyseveralquestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Choosetheonethatfitsbestaccordingtotheinformationgiveninthepassageyouhavejustread.(A)EUmembers’stateshaveagreedtobanatoxicsubstancewidelyfoundinclothingbecauseitposesan“acceptablerisk”totheenvironment.Countriesvotedinfavorofextendingexistingrestrictionsonnonylphenolethoxylates(NPE)toimportstoclothingandothertextileproducts.Themeasureisintendedtoprotectspeciesinwater.UseofNPEintextilemanufatureinEuropewasbannedover10yearsagobutthesubstanceisstillreleasedintothewaterenvironmentthroughimportedtextilesbeingwashed.NPEdegradesintheenvironmentintosubstancesincludingnonylphenol(NP),whichaccumulatesinthebodiesoffishanddisturbstheirhormones,harmingfertility,growthandsexualdevelopment.NPEisusedintextilemanufactureasacleaninganddyeingagent.TheEUdecisionnotesthatseveralstudieshavefoundNPEtobepresentintextileitems.A2011studybyGreenpeacefoundNPEintwo-thirdsofclothestested,includingitemssoldbybig-namebradssuchasAdidas,H&M,Lacoste,andRalphLauren.TheNGO(Non-GovernmentalOrganizations)arguedthatalthoughconcentrationsofNPEfoundintheclotheswerelow,thechemical’sexistenceintheenvironmentposedarisk.ThenewbanontextilescontainingNPEinconcentrationsequaltoorgreaterthan0.01%willenterintoforcefiveyearsafteritisadoptedbytheEuropeanCommission,whichislikelytohappeninSeptember.IncommentssubmittedtoECHA(EuropeanChemicalsAgency),clothingandtextilefirmshavewarnedthatobeyingtherestrictionwillbedifficultbecauseNPEubiquitousinthesupplychainandhasnumeroususes.Thenewrestrictionwillnotapplytosecond-handgoodsorrecycledtextilesbecauseitisassumedthatthesewillalreadyhavebeenwashedseveraltimessotheycontainnegligible（微不足道的）amountsofNPE.EUcountriesmusteliminatepollutionofwaterbodiesbyNPasitisaprioritysubstanceundertheWaterFrameworkDirective.A2013studybytheUKenvironmentagencywarnedthatemissionsfromtextilescouldpreventprogresstowardsthisobjective.Itfound29%ofimportedcottonunderwearcontainedNPE,whichwasreleasedduringthefirsttwowashesbytheconsumer.56.The2011studybyGreenpeacefound_________.A.29%ofimportedcottonunderwearcontainedNPEB.NPEhadlimitedeffectsonaquaticspeciesC.NPEwaswidelypresentintextileproductsD.clothesofgoodqualityhadnoconcentrationsofNPE57.What’sthepossiblemeaningoftheunderlinedpart“isubiquitous”isParagraph7?A.islegallyprotectedB.isnoteasytobefoundC.seemstobeeverywhereD.isuncommon58.Whatcanwelearnfromthetext?A.TheoriginalbanonuseofNPEwasveryeffective.B.RecycledtextilecontainlessNPE.C.Thenewbanonimportsoftextilehascomeintoforce.D.TheUKenvironmentagencyisoptimisticaboutthenewban.59.Whichsectionofthewebsitedoesthetextcomefrom?A.lifestyleB.technology.C.Business.D.Environment.(B)LettersCommentsontheMarchIssue40SmartWaystoSaveattheSupermarketYourcautionnottofallforfakesalesremindedmeofwhenIwasastockboyatmyneighborhoodgroceryinthe1950s.Onetime,wegotadeliveryofoff-bandvegetables.Ipricedthemattencentsacan.Idon’tthinkwesoldmorethansixcans--untilIputupsignthatsaid“Special:Ninefor$1.”IsetthemoutThursdayevening,andbynoononSaturdaytheyweregone.EdwardDeckerd,Perrywille,MissouriTrappedInsideaGlacierReadingaboutJohnAll’sexperienceonMountHimlungwasveryinspiringtome.Amanwith15brokenbonesandbleedinginternallybeingabletoclimbupa70-footwalloficeandsurvivefor18hoursat20,000feetissomethingthatIwouldhavethoughtobeimpossible.Iam16yearsoldandalifelongreader.OutofallthegreatcontentinReader’sDigest,storieslikehisaretheonesIenjoythemost.SamKieffer,Richardson,TexasBill’sLast,BestGiftTrackGrant’sarticleresonated（與……產(chǎn)生共鳴）deeplywithme.Twelveyearsago,myhusband,Don,wasdiagnosedwithterminalbraincancer.Ashiscaregiver,I,too,learnedtoappreciatethepeopleandthingsaroundmeandnottosweatthesmallstuff,andinthelongrun,Ibecameamuchbetterperson.Donalsogavemehislast,bestgiftofloveandpeace.AntiaLawrence,SanDiego,CaliforniaDishesProfessionalChefsCookintheMicrowaveMicrowavinglivelobstersininhumaneandcruel.Becauselobstersfeelpain,Switzerlandhasrecentlyoutlawedthepracticeofboilingthemlive.AsimilarlawwaspassedinItaly,whereitisnowillegaltoputlobstersonicebeforecookingthem.Ihopeyouprovideanupdatetoyourstorypromotinghumanepracticesinsteadofcruelandviolentones.JanetToole,Phoenixville,Pennsylavnia60.HowdidAntiaLawrencereacttoherhusband’sdiagnosis?A.Shefeltverypainful.B.Shegainedsomelifelessons.C.Shepaidmoreattentiontoherownhealth.D.Sheshoweddeepsympathyforherhusband.61.AccordingtoSamKieffer’sletter,whatcanbelearnaboutJohnAll?A.HeisanexpertinmountaineeringB.HewrotethearticleentitledTrappedInsideaGlacier.C.Notallpeoplecouldsurviveinthesamesituationashedid.D.HisstoryisthebestonethatSamKiefferhaseverreadinReader’sDigest.62.Whoislikelytodisagreewithwhatissaidinthecommentedarticle?A.EdwardDeckerd.B.AntiaLawrence.C.SamKieffer.D.JanetToole(C)Whatmakesuslovesomethingsandhateothers?Weknowthatsometimeseventhetiniestchangecanresultinahugedifferenceinhowweperceivesomething,soisthereanyrhymeorreasontoourtastesandpreferences?Herearethreefactorswhichplayarole.1.ConformingtoexpectationInLondonafewyearsago,twotalentedrapperscalledSilibilN’Brainstooktothestagetoperformatamusicindustryshowforunsignedbands.Theywereaninstanthit.TheiroutrageousWestCoast-Americanstyle,brilliantraplyricsandcouldn’t-care-lessattitudehadthemusicindustry’stalentspottersfallingoverthemselvestosignthepair.Inashortspaceoftime,SilibilN’Brainshadadealwithatopmanagementcompany,acontractwithamajorrecordlabelandanadvanceof$70,000--andtheyhadn’tevenmadearecord.Beforelong,theywereontourwithEminemandoutpartyingwithMadonna.Theywerelivingthedream.Buttwoyearsagothesametworapperswerelaughedoffstagebythesametalentspottersforsingingthesamesons.Sowhatwasthedifference?Amazingly,itwastheiraccent.Yousee,SilibilN’Brainsweren’t,infact,fromWestCoastU.S.A.atall.TheywerefromDundeeinScotland.DuringthefirstauditiontheyhadusedtheirScottishaccentswhenrappingandithadnotgonedownwell.“Theyjustlaughedatus,”recalledBrains.“Wewereheartbroken.WewentbacktoScotlandwithourtailbetweenourlegs”.Thelessonforthemwasthattosucceed,youhavetoconformtoexpectationsandatthattimeeveryoneexpectedrapperstobeAmerican.2.ThebenefitofhindsightSomepeoplearesimplyaheadoftheirtime.It’scommonknowledgethatVincentvanGoghsoldonlyonepaintinginhislifetime--theother900orsowereunknownandunloveduntilafterhisdeath.Monet’spaintings.atleastinhisearlycareer,wasconsideredincompleteanduglybycriticsatthetime,whileVermeer,thepainterofGirlWithaPearlEarring,evenhadtousehismother-in-lawasaguarantorwhenheborrowedmoney--sounablewashetosellanyofhiswork!Nowthatpublictastehascaughtupwiththeseartists,moreorlessanythingtheytouchedhasanastronomicalpricetagattachedtoit.Perhapsthereasonisthatitjusttakesawhiletogetusedtosomething--afterall,notallbeautyisobviousatfirstsight.3.AreassuringpricetagInaworldwheretherangeofproductsonoffercanbecompletelybewildering,weoftenlooktopriceasanindicationofquality.Wemaythinkweprefertheexpensivewinetothecheapone,butwemaysimplybeinfluencedbythepricetag.Evenprofessionalscanmakethemistake.AresearcherfromtheUniversityofBordeauxinFrancetookanaveragebottleofredwineandpoureditintotwoemptybottles,onwithanexpensivelabelandtheotherwithacheapone.Thenheinvited57wine“experts”totastethewine.Fortyofthemrecommendedthewinefromtheexpensivebottle,describingitas“agreeable”,“complex”,“balanced”and“rounded.”whilethesamewinefromtheexpensivebottle,describingitas“agreeable”,“complex”,“balanced”and“rounded,”whilethesamewinefromthecheapbottlewasdescribedas“weak”and“flat”,withonly12oftheexpertsrecommendingit.ThestudymadetheresearcherunpopularwiththeFrenchwinetasters,buthedidprovethatpricehasasignificantimpactontaste.63.WhichofthefollowingstatementsaboutSilibilN’Brainsistrue?A.Talentspottersfellinlovewiththematfirstsight.B.TheyarefromtheWestCoastofAmericaC.TheirsuccesswasattributedtobehavingandsoundinglikeAmericanrappers.D.TheywerefriendswithfamousstarslikeMadonnaevenbeforetheysucceeded.64.Theunderlinedphrases“withourtailbetweenourlegs”indicatesthat_________.A.theirfirstauditionprovedafailureB.theyfeltproudoftheirperformanceC.theylearnedavaluablelessonD.beinghumblemightcontributetotheirfuturesuccess65.Weaninferfromthesecondfactorthat________.A.someartistsarebetterknownwhentheyarealivethanwhentheyaredeadB.publictasteusuallyfallsbehindfamousartistsC.beautyatfirstsightlastsmuchlongerD.Monet’spaintingsarepricelessbecauseoftheirincompleteness66.Whatcanwelearnfromthelastparagraph?A.Apricetagalwaysfailstoindicatethequalityofaproduct.B.Apricetagislesslikelytoconfusecustomersthanthepackaging.C.LowpricewillmakethewineunpopularwithtastersD.Apricetagwillcloudaperson’sjudgementofsomething.SectionCDirections:Readthefollowing.Fillineachblankwithapropersentencegiveninthebox.Eachsentencecanbeusedonlyonce.Notethattherearetwomoresentencesthanyouneed.A.BetweenAugustandApril,theysoughtfoodinlowelevations（海拔）onChina’sQinlingMountains.B.Scientiststhinktheresearchshowthatpandasareveryclever.C.Pandaseatbambooalldaylongexceptwhentheyaresleepingorplaying.D.Thegenefortheir“umamitastereceptors”becameinactive.E.TheyfedonthemuntiltheywentbackdownthemountainandstartedeatingBashaniafargesiileavesagain.F.Scientistshaveconductedmanystudiesonpandas’eatinghabits.AreBamboo-EatingPandasReallyHerbivores?Ontheoutside,giantpandaslooklikeherbivores（食草動物）.Theyspendnearlyalloftheirwakinghourseatingbamboo.Butontheinside,they’rebuiltlikecarnivores（食肉動物）.Abouthalfofthecaloriestheyeatcomefromprotein,accordingtoanewstudy.Theancestorofgiantpandaswereomnivorous（雜食的）.Theyarebothanimalsandplants,andhadthedigestivesystemandgutbacteriatometabolize（使發(fā)生新陳代謝）them.Theyhad“umamitastereceptors,”toappreciatetheflavorsofmeat.However,about2.4millionyearsago,thingsbegantochange._____67_____Theirjawandteethevolvedtohelpthemcrushbamboo,andtheirwristbonebecamecapableofgraspingthestalks（桿）oftheirfavoriteplant.Scientiststhinkpandasswitchedtoeatingbamboopartlybecausetheydidn’thavetofightwithotheranimalstogetit.Bambooishighinfiberbuthasalowconcentrationofnutrients,sopandashavetoeat20to40poundsoftheplanteverydayjusttogetby.DavidRaubenheimer,anutritionalecologistattheUniversityofSydney,andhiscolleaguesputGPStrackersontwogiantpandasandfollowedtheirmovementthroughouttheyear.Theydiscoveredthatthepandasfollowedtheprotein._______68______Atthestartofthecycle,theyateBashaniafargesiileavesuntiltheygotthechancetofeastonyoungshoots,whichcontainedmoreprotein.Themoretheshootsgrew,themoretheirproteinwasdiluted（沖淡）byfiber.Thatcausedthepandastomovetohigherground,whereFargesiaqinlingensisgrew.First,theyatetheshoots,butthese,too,wentfrombeingprotein-richtofiber-richastheygrew.Thepandarespondedbyswitchingtotheleaves.______69______Theresearchersfoundthatabouthalfofthecaloriesthepandasatewereintheformofprotein._______70_______“Theycanknowexactlywheretogo,andwhentogo,sotheycangetthemostofthenutrientsthattheirecosystemcanprovide,”saidSilviaPineda-Munoz,whowasnotinvolvedinthestudy.Theworkalsoshowsthatclassifyingananimalsasherbivoreorcarnivoreismorecomplexthanonemightsassume.“It’snotwhetheryou’reeatingplantsbutwhatoftheplantsyou’reeating,”saidPineda-Munoz.IV.SummaryWritingDirections:Readthefollowingpassage.Summarizethemainideaandthemainpoint(s)ofthepassageinnomorethan60words.Useyourownwordsasfaraspossible.71.HerbalMedicineHerbalmedicine,whichhasbeenusedformedicinalpurposes,istheuseofplantstotreatdiseases.Manyherbalistsusetheentireplant,fromtheflowers,stems,leaves,androots,intheformofeverythingfromteastopills.Theseplantscontainnatural,chemicalthingsthatcantreatthebodyforavarietyofdiseases,suchasallergies,asthma,rheumatoidarthritis,migraine,chronicfatigue,andcancer,amongothers.Nowadaysanincreasingnumberofpeopleprefertoadopttheseplantstotreattheirdiseasesbecause,comparedwithchemicalmedicine,herbalmedicinehasitsownadvantages.Herbalmedicineandremediesaremoreeffectivethanchemicalmedicineforcertaindiseases.Thechemicalmedicinegivenby