2025届云南省文山州五中高考英语必刷试卷含解析

2025届云南省文山州五中高考英语必刷试卷注意事项1．考生要认真填写考场号和座位序号。2．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。第一部分必须用2B铅笔作答；第二部分必须用黑色字迹的签字笔作答。3．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。第一部分（共20小题，每小题1.5分，满分30分）1．Theeventthat_________inmymemoryhappenedonemorningin1983whenIwas14yearsold.Ithasneverescaped.A．stoodoutB．standsoutC．wouldstandoutD．hasstoodout2．Addingtotheirhappiness,hesays,______somesimilaritiesbetweenthetwotestpapers.A．is B．are C．has D．have3．Manynetizensareimpressedwiththeexcusegivenbyateacherforquittingherjob______sheowestheworldavisit.A．because B．that C．where D．why4．Thetrafficisheavythesedays.Iarriveabitlate,socouldyousavemeaplace?A．canB．mustC．needD．might5．Atonetime,sheisfine,________atanother,sheisabnormal.A．and B．or C．but D．so6．Theshockingnewsmademerealize______terribleproblemswewouldface.A.that B．how C．what D．why7．Liftingoffatsunrise,thehotairballoongoeswhereverthewindblow.A．may B．must C．need D．should8．______toworkovertimethatevening,Imissedawonderfulfilm.A．HavingbeenaskedB．ToaskC．HavingaskedD．Tobeasked9．Don’tworry.Anumberofeffortsarebeingmade______thewholesystemoperatingnormally.A．beingkept B．keptC．keeping D．tokeep10．Sheis____________beingpleasedaboutit;sheisveryangry.A．freefrom B．freeof C．outof D．farfrom11．Withthedevelopmentofscience,morenewtechnology______tothefieldsofIT.A．hasintroduced B．isbeingintroducedC．isintroduced D．wasintroduced12．—Daddy,wouldyoupleasebuymeaniPhoneX?—Ifyoucanpassthismidtermexamination,you__________haveoneasareward.A．must B．needC．would D．shall13．MichelleObamawearsclothesthatanyonecanbuyinamalland________shemayhavealargereffectonconsumersthanordinarymodels.A．furthermore B．otherwise C．nevertheless D．therefore14．Theroomissoclean.He________havecleanedityesterdayevening.A．will B．needC．can D．must15．Zhouqu,Gansuwasattackedbysuchaterriblemud-rockflowfewresidentshadeverexperiencedbefore.A．as B．which C．where D．that16．______exactlywhatwaswrongwithhim,thedoctorsgavehimacompleteexamination.A．TodiscoverB．DiscoveringC．DiscoveredD．Havingbeendiscovered17．Thelivingroomiscleanandtidy,withadiningtablealready__________foramealtobecooked.A．laid B．layingC．tolay D．beinglaid18．Withthedevelopmentofagriculture,thepeople_____villageItaughtarenowlivingahappylife.A．inwhose B．whose C．inwhich D．which19．ProfessorLi________forhisinformativelecture,waswarmlyreceivedbythestudents.A．knownB．knowingC．havingknownD．tobeknown20．Peoplecrowdinto________cherrytreesareblooming,appreciatingthefreshspringsight.A．what B．whenC．which D．where第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。21．（6分）AttheendofthespringsemesterinMay,studentstakingGeorgiaTech’sonlineKnowledge-BasedArtificialIntelligencecoursereceivedsomesurprisingnews.JillWatson,oneofthenineteachingassistants(TAs)thathadhelpedthemfinishthechallengingcourseforthepastfivemonthswasnota“she”butan“it”—anintelligentrobot!WatsonisthebrainchildofAshokGoel,whoteachesthepopularonlinecourse.TheProfessorofComputerandCognitiveScienceintheSchoolofInteractiveComputingcameupwiththeideaasawaytodealwiththenumberofquestionsposedbystudentsintheonlineforums(论坛).AccordingtoGoel,everytimethecourseisoffered,the300orsostudentsthatenrollpostover10,000questions.Thequestionsareoftenrepetitive.ThisledGoeltowonderifasmartrobotwouldhandlethequestionswhichrequirestandardresponses—thingslikedateswhenassignmentsaredue.HavingworkedwithIBM’sWatsontechnologyplatforminthepast,theprofessorknewitwouldbeidealforhisartificialTA:JillWatson.Theartificialintelligencesystemthatusesnaturallanguageprocessingandmachinelearningtoanalyzelargeamountsofdatahasevenbeenclevererthanhumancompetitorsonthetelevisionshow.Itwouldthereforeeasilybeabletohandleroutinequestionsthatrequiredlittle“thinking”.TheprofessorandhisteamofgraduatestudentsbeganbypopulatingJill’smemorywith40,000questionsandanswersfrompastterms.Thencamethetestingstage.Atfirst,Jillwasnotverygoodandoftengavestrangeanswers.Itoftengotstuckoncertainkeywords.Bytheendofthesemester,JillhadattainedenoughknowledgeandskillstoparticipateinforumswithoutanymanagementfromGoel,ortheotherassistants.1、Whatsurprisedthestudentswhotaketheonlinecourse?A．Thecoursewasinterestingbutchallenging.B．Ateachingassistantwasn’tarealperson.C．JillWatsonisahard-workingTA．D．Theyallfailedtopasstheircourse.2、What’sthebesttitleforthetext?A．ARobotofGeorgiagivesanonlinecourseB．AshokGoelCameupwiththeIdeaofJillWatsonC．JillWatson—OneoftheNineTeachingAssistantsD．GeorgiaTech’sTeachingAssistantTurnOuttoBeaRobot3、WhydidGoeldecidetoinventasmartrobot?A．Anumberofstudentstookhisonlinecourse.B．Asmartrobotisclevererthanahumanbeing.C．Toomanysimilarquestionsaretobedealtwith.4、Whatcanweinferfromthetext?A．Studentsshoulddealwithroutinequestions.B．Jillismainlyinchargeofpostingsurprisingnews.C．TheTAsgivestudentshomeworkatacertaintime.D．GoelissatisfiedwithJill’spresentperformance.22．（8分）Beachesarenotonlygreatforlyingonanddoingwatersports，andinfactoneofthebestwaysofenjoyingthemisaclassicbeachwalk.HereatiWantSun.co.ukwe’vebeensearchingtheglobetofindyoutheworld’sbestandmostfamousbeachwalks，andhere’sourpickofthetop.Clickonthemostinterestingwalksandjoinourtouristprogram.TheFootpathoftheGods,AmalfiCoast，ItalyThenamesaysitallreallyandyoutrulyfeelexcitedthere,walkingalongthiswonderfulmountainpath,whichofferssomeofthemoststrikingviewson(heplanet.ThepathbeginsatthetownofBomeranotocharmingPositanoalongtheUNESCOWorldHeritageareaoftheAmalfiCoast.Thewholewalkwilltakeyouaboutfourandahalfhourstocompleteandpassovernarrowrockypaths.Sydney'sGreatCoastalWalk,AustraliaSydney'scoastlineisoneofthemostbeautifulanddiverselandscapesintheworld.Hereyouhavenationalparks,historicsites,shiningandquietbeachesallinoneplace.Sydney'sGreatCoastalWalkrunsallthewayfromBarrenjoeyinthenorthtoRoyalNationalParkinthesouthandtakesanunbelievablesevendaystocomplete.However,ifyou'renotuptodoingthefullwalk,therearemanydifferentpartsofthewalkthatyoucandorightinthecityitself.Walkingfromthecity9sfamousBondiBeachtothesweepingcurve(大半径曲线）ofBroneBeachtakesjustanhour,whichtakesinsometopsceneries.GreatOceanWalk,AustraliaTheGreatOceanWalkcovers104kmalongVictoria'sfamousGreatOceanRoad,locatedonthesoutherncoastofAustralia,fromtheholidaytownApolloBaytothesplendidTwelveApostles.TheTwelveApostlesarethearea'sfamousstonelandmarkswhichstandoutlikegiantsfromthesea.Thewalkpassesthrougharangeoflandscapesandsights,fromnationalpark,famoussurfingspotsanddesertedbeaches,towildcoastlines,waterfalls,lush(茂盛的）forests,historiclighthouses.Daywalksandshorterthree-hourwalkssuchasTheWreckBeachWalkortheLighthouseCemeteryandLookoutWalkcanalsobeenjoyed.Sonexttimewhenyou'relookingforabeachholiday,don'tjustthinkabouttheholidaytownsandthesand,butconsideramoreactivesunholiday.Ifyouhaveinterestinanyoftheaboveplaces,pleasecontactus,andwecangiveyouthebestservices.1、WhenyouarriveatAmalfiCoast,_________.A．thescenicbeautycanfillyouwithcharmB．thewalkingcanbestartedfromPositanoC．youmustbefedupwiththefootpathD．narrowrockypathsmaytrapyou2、WhatarethedistinctcharacteristicsofSydney'sGreatCoastalWalk?A．Ittakesmorethanaweektocompletethewalk.B．Itprovidesvisitorswithavarietyofgreatlandscapes.C．Itreallyhasthelongestcoastlineintheworld.D．ItstartsfromRoyalNationalParkinChesouth.3、FromtheGreatOceanWalk,Australiawecanknowthat_______.A．mostvisitorshavetofinishthe104kmwalkquicklyB．theTwelveApostlesstandbelowthesurfaceoftheseaC．ApolloBayisattheendoftheGreatOceanWalkD．visitorshavevariouswalkingchoicesthere4、Wherecanweprobablyreadthepassage?A．travelmagazine. B．Ahandbooktotourists.C．Anonlineadvertisement. D．Aposterinaforeigntravelagency.5、Theauthorintendsto________.A．introducethebeautifulbeachesinAustraliaB．presentthewonderfulbeachesintheworldC．tellustheidealtouristdestinationforhealthD．askustojointhetouristprogram23．（8分）Nospacecraftwilleverlandonthesun.thesunisaflamingballofgasthatreachesthousandsofdegreesFahrenheit.Butnextyear,ashipfromEarthwillflyclosertoitthananymanmadecrafthasflownbefore.Themission(任务)isabigdevelopmentforscientistsand,maybe,foreveryoneelse.InSeptember2018,NASAplanstolaunchtheParkerSolarProbe.Afterajourneyofnearly90millionmiles,itwillflywithin3.8millionmilesofthesun.withintwomonthsoflaunching,theprobeisexpectedtoreachthesun’scorona(日冕).That’sthesun’souteratmosphereofgases.Gettingtherewon’tbeeasy.Designingaspacecrafttoughenoughtoholduptothesun’sheathasproveddifficult.Butthathasn’tstoppedengineersfromtrying.Temperaturesinthecoronacanreachmillionsofdegrees.Theprobewilllimititselftoregionswherethingsgetnohotterthan2,500oF.That’sstillaheavyheatloadforaspacecraft.Buta4.5-inch-thickheatshield(罩)willprotecttheprobe’scameraandscientificinstruments.NASAsaysthedatatheprobecollectscouldprovideknowledgeintothephysicsofstars.Oursunisspecialtous.Butasastar,it’srathercommon.Sothebetterweunderstandhowitworks,thebetterweunderstandallstarsofitsmassandcolor.Perhapsthemostimportantiswhattheprobemayshowusaboutsolarstorms.Duringsolarstorms,chargedparticlesstreamthroughthesolarsystem.Theycandisablecommunicationssatellitesandshutdownpowdersystems.Onestudyhasfoundthataveryintensesolarstormcouldcauseupto$2trillionindamageintheUSalone.ItcouldalsoblackouttheEastCoastforayear.Understandingsolarstormsmightallowustopredictthemandprotectourselves.Thatcouldmakeevenamissionwithabillion-pluspricetagoneofNASA’sgreatbargains.1、Whatcanwelearnabouttheprobe?A．It’llflyclosertothesunthatthepreviousonesB．It’sthefirstmanmadeinstrumenttoflytothesunC．It’llgettothecoreofthesuninnearlytwomonthsD．It’llflyabout3.8millionmilestoreachthecorona.2、Whatisthechallengefortheengineers?A．DirectingtheprobetocollectdataB．ReducingthetemperatureoftheprobeC．BuildingashieldagainsttheheatD．Limitingtheprobetoproperregions3、Whatmightbethebesttitle?A．ExploringthestarsB．GettingclosetothesunC．DesigningaspaceshipD．Protectingtheearth4、Wheredoesthevalueofthemissionlie?A．MonitoringsatellitesB．ExploringsolarenergyC．DevelopingscientificinstrumentsD．Forecastingsolarstorms24．（8分）Researchershavefoundbeescandobasicmathematics,inadiscoverythatdeepensourunderstandingoftherelationshipbetweenbrainsizeandbrainpower.Recently,AstudyconductedbyresearchersfromRMITUniversityinMelbourne,Australiashowedthatbeescouldperformarithmeticoperationslikeadditionandsubtraction(减法).Solvingmathproblemsrequiresacomplexlevelofinvolvingthementalmanagementofnumbers,long-termrulesandshort-termworkingmemory.ThefindingthateventhetinybrainofahoneybeecangraspbasicmathematicaloperationshasapossibleeffectonthefuturedevelopmentofArtificialIntelligence,particularlyinimprovingrapidlearning.RMIT’sProfessorAdrianDyersaidnumerical(数字的)operationslikeadditionandsubtractionarecomplexbecausetheyrequiretwolevelsofprocessing.“Youneedtobeabletoholdtherulesaroundaddingandsubtractinginyourlong-termmemory,whilementallyusingskillfullyasetofgivennumbersinyourshort-termmemory,”Dyersaid.“Ontopofthis,ourbeesalsousedtheirshort-termmemoriestosolvearithmeticproblems,astheylearnedtorecognizeplusorminusasabstractconcepts.”Thefindingssuggestthatadvancednumericalcognition(认知)maybefoundmuchmorewidelyinnatureamongnon-humananimalsthanpreviouslysuspected.“Ifmathdoesn’trequireamassivebrain,theremightalsobenewwaysforustoincludeinteractionsofbothlong-termrulesandworkingmemoryindesignstoimproverapidAIlearningofnewproblems,”saidDyer.Manyspeciescanunderstandthedifferencebetweenquantitiesandusethistosearchforfood,makedecisionsandsolveproblems.Butnumericalcognition,suchasexactnumberandarithmeticoperations,requiresamorecomplexlevelofprocessing.Previousstudieshaveshownsomeprimates(灵长目动物),birds,babiesandevenspiderscanaddand/orsubtract.Thenewresearch,publishedinScienceAdvances,addsbeestothatlist.1、WhathavetheresearchersfromRMITUniversitydiscovered?A．Therelationshipbetweenbrainsizeandbrainpower.B．Long-termrulesandshorttermworkingmemory.C．Beescanperformcomplexarithmeticoperations.D．Beescandobasicmathematics.2、AccordingtoAdrianDyer,bees’numericalcognition________.A．requiresadditionandsubtractiontwocomplexprocessingB．hasapossibleeffectonthefuturedevelopmentofAIC．onlyinvolvestheirshort-termworkingmemoryD．callsforalotofmathsknowledge3、Whatdoesthefindingofthenewresearchsuggest?A．Beescanrecogizetheexactnumber.B．Arithmeticoperationsexistinhumanandbees.C．Numericalcognitionhasbeenfoundinmanymorespecies.D．Someprimates,birdsandevenspiderscanaddandsubstract.4、Whatcanbethebesttitleforthetext?A．ADiscoveryAbouttheTinyBrainofBeesB．NewFindingsAboutBeesHavingNumericalCogintionC．NumericalCognitionRequiresaComplexLevelofProcessingD．TheRelationshipBetweenBrainSizeandBrainPower25．（10分）EXPERIENCECOLUMBIAHOTATTRACTIONS◆RIVERBANKSZOO&GARDENItishometomorethan2.000animalsandoneofthenation'smostbeautifulbotanicalgardens.Withmorethan350speciesfromaroundtheworld,Riverbanksisoneofthelargestmid—sizedzoosinthecountry.Hours:9:00a.m．一5:00p.m.daily.Admission:Adults(13—61)一$19.95Children(2—12)——$16.95◆EDVENTURETheSoutll'slargestchildren'smuseumhas300exhibitstomspirechildrentoexpenencethejoyoflearning.whereelsebutEdVenturecanchildrendrivearealfiretruck,anchorthenewsorvisitanothercountry?Hours:Monday-Sunday:9a.m.-5p.m.Admission:MembersFreeChildrenandAdults-$11.95◆SOUTHCAROLINASTATEMUSEUMThestoriesofSouthCarolinacomealivethroughtheexhibitsandcollectionsoftheStateMuseum.Plus,anew4-Dtheaterprovidespopularmoviesthatexciteallages.Museummembersareinvitedtonight-skyobservingandmoreonTuesdaynights!Hours:Mon.,Wed.-Fri.:10a.m.-5p.m.,Tues.:10a.m.-10p.m.,Sat.:10a.m.-6p.m.,Sun.:Noon-5p.m.Admission:Adults(13-61):$8.95Children(3-12):$6.95◆SALUDASHOALSPARKSaludaShoalsParkisasensitiveriverfrontparkthatinvitesvisitorstoexperiencethetreasuresoftheSaludaRiverthroughexceptionaleducationalandculturalopportunities.Fun-filledFamilyActivitiesNightly!(exceptThanksgiving,ChnstmasEveandChristmasnight)Freeforactivities:applywithHolidayLightsadmission($20/car;$40/15-passengervehicle;$60/bus).1、Whichattractionbestsuitsachildinterestedinbroadcastingnews?A．EdVenture.B．TheStateMuseum.C．SaludaShoalsPark.D．RiverbanksZoo&garden.2、Howmuchshouldayoungcouplewitha4-year-oldsonpaytoenjoyvariousplantsandanimals?A．$24.85.B．$20.C．$56.85.D．$35.85.3、WhichofthefollowingisavailabletoalltouristsintheStateMuseum?A．Havingafantasticvisualfeastatl:00p.m.B．VisitingtheexhibitsonSundaymorning.C．Enjoyingfreefamilyactivitieseverynight.D．ObservingtheamazingnightskyonTuesdaynights.第三部分语言知识运用（共两节）第一节（每小题1.5分，满分30分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项．26．（30分）MymotherhasbeenatrueinspirationtomeandchangedthewayIlookatlife.SincemybirthshehasmadeitevidentthatIwouldbecome___16___andthatIwouldbeoneofthegreatones.ShehastaughtmethatIcandoanythingifIputmy___17___toit.Asayoungboy,Istruggledtoachievetasksthatcame___18___toothers.Ihadproblemswithwriting,readingandespeciallyspeaking.Ididn’ttalktheway___19___kidsdidanddidnotrespondtoquestionsorstayalert（警觉的）tomysurroundings.Myreadingwaspoor___20___withteachershelpingme,andmyspeechwashardto___21___.Mywritingwasnotatthe___22___itshouldhavebeen.Evensimplethingslikeknowingmyleftfrommyrightorbeingabletosnapmyfingers(弹手指)were___23___.Mymother___24___allmychallengesandasaprofessorwithaPH.D,decidedto___25___thesituationearlyinmydevelopment.Shedidn’twantmeto___26___.Afterawhile,wedidindeedgetoveralltheproblemsthathad___27___me.Shespenthourseveryday___28___meeverythingIneededtoknow,determinedtohelpmelearn.___29___herIwouldnotbeanywhereclosetothelevelIamnow.Inaddition,shegave___30___formylife.Shetoldmewhattodoandwhatnottodo.Herexpectationshavealwaysbeenhigh___31___sheknowsthatIcandoit.Forthat,Ithankher.Shewouldnotallowhersontobeincapable.Shenever___32___onme,andtothisdayshetellsmeeducationisamust.Iwillbea___33___personifIcontinuetofollowherlead.Sheencouragesmetostudyhardformy___34___andattendcollege.Sheusedhergiftsasa___35___tohelpachild—herchild—andnowIhavetheopportunitytobecomesomething.1、A．everything B．nothing C．anything D．something2、A．mind B．brain C．feelings D．work3、A．smoothly B．strongly C．frequently D．easily4、A．average B．ordinary C．normal D．common5、A．just B．ever C．even D．only6、A．hear B．write C．read D．understand7、A．level B．length C．speed D．degree8、A．problems B．excuses C．worries D．duties9、A．suffered B．observed C．removed D．tolerated10、A．study B．find C．change D．keep11、A．fight B．struggle C．strike D．challenge12、A．interrupted B．disturbed C．terrified D．troubled13、A．teaching B．giving C．supporting D．reminding14、A．Without B．Except C．Besides D．Beyond15、A．information B．advice C．promise D．expectation16、A．before B．though C．because D．unless17、A．setup B．gaveup C．pushedup D．lookedup18、A．rich B．famous C．successful D．powerful19、A．training B．grades C．experiments D．abilities20、A．woman B．doctor C．sister D．teacher第二节（每小题1.5分，满分15分）阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。27．（15分）Anumbrellaiswhatweeasilyforgetandleavebehindinourdailylife.Whentheweatherisfine,wecertainlydon’tthinkofit;onlywhenit’sraining,we’llcarryitpurposefully.Butassoonastherainstops,mostlikelywe’llforget1．we’veputit.Ithastowaitpatientlyandpitifullyfor2．ownertoclaimit,otherwiseit’llremainaloneasadesertedumbrella.OnceIsuddenlyfoundmylongtimeusedumbrella“disappeared”.Ireallygotlost3．regrettedquitesometimeformyowncarelessness.Severaldayslater,outofmy4．(expect),IsawitquietlystandinacornerofthehousewhereIworked.Iwasextremelygladtoregainit.Lookingcarefullyatit,thoughitwassofamiliar5．me,Ifoundforthefirsttimethatitswoodenhandle6．(wear)outasaresultofrepeatedrain­washforyears.IsoughtforitonlywhenIneededit.ItoccurredtomethatIshouldhavepaid7．much)attentiontoit.Itsetsme8．(think).Aroundusthereisalwaysapersongivingussupportinsilencejustlike9．oldumbrellathatprotectsusfromtherainoranywretchedweather.Willyouthinkofthoseindividuals10．havehelpedyougetthroughdifficultywhenyouareleadingacomfortablelife?第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下短文。短文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。删除：把多余的词用斜线（＼）划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。注意：1.每处错误及其修改均仅限一词；2.只允许修改10处，多者（从第11处起）不计分。Todayisanexcellentdayforsmallimprovements.Itisnoneedtomakeahugechange,justasmallone,somethingyoucanprobablytodorightnow.Ifyoulearnjustonemorenewwordseachday,inthenextyearyouwillincreaseourvocabularybymorethan300words.Smallimprovementscanadduptobigachievements.Considertheworkyoudoeachdayandthinkingabouthowyoucandoitjustalittlebitbetter.Onamarathonrace,eachstepthewinnertakesisjustalittlebitlongandfasterthaneachsteptakenbytheothers.Thatsmalldifferenceaddupinabigway.Dojustalittlebitmoretoday,andtomorrowtoo,buteachdayafterthat.Anyonecanmakejustasmallimprovement,andthatcanmakebigdifference.第二节书面表达（满分25分）29．（25分）你发现你的好友小明最近很苦恼，并得知：为了让他专注学习考上理想大学，家人打算让他母亲不再跟随父亲外出打工，而在学校旁租房专门陪读。对于是否接受这个决定，他左右为难，拿不定主意。请给小明写封邮件劝慰他，内容包括：1．分析父母为什么做这个决定；2.建议他接受或者拒绝，并说明理由。注意：1．词数100左右（开头、结尾已给出，不计入总词数。）2．可以适当增加细节，以使行文连贯。DearXiaoming,Areyoufeelingbetternow?_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Hopingyou’llbecheerfulsoon!Yours,ZouKai

参考答案第一部分（共20小题，每小题1.5分，满分30分）1、B2、B3、B4、D5、C6、C7、A8、A9、D10、D11、B12、D13、D14、D15、A16、A17、A18、A19、A20、D第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。21、A“smartdrug”takenbystudentstoimprovetheirperformancereallydoeswork,scientistshavefound.Thedrugmodafinil（莫达非尼）iscurrentlyusedtotreatsleepdisorder,butitiswidelyusedoff-labelbystudentstohelpthemreviseforexamsorfocusonlongessays.Untilnow,therehasbeenalackofclearevidenceoverwhetheritcanactuallyboostconcentrationandalertness.Butanewanalysisoftheresearchrevealeditdoesimproveplanninganddecisionmaking,flexibility,learningandmemory,andevencreativity.Thefindingsraiseseriousethical(处方的，道德的)questionsaboutwhethermodafinilshouldbe“classified,toleratedorcondemned”,scientistssaid.ProfessorGuyGoodwin,PresidentoftheEuropeanCollegesaid:“It’sthefirstrealexampleofa‘smartdrug’,whichcangenuinelyhelp,forexample,withexampreparation.”Previousethicaldiscussionsaroundsmartdrugsassumedmajoreffectsofthedrugsbeforeitwasclearthattherewereany,headded.Hecontinued“Ifcorrect,thepresentupdatemeanstheethicaldebateisreal:howshouldweclassify,tolerateorcondemnadrugthatimproveshumanperformance?”[Afifthofuniversitystudentsacrossthecountryclaimtohavetakensmartdrugs,

accordingtosurveysbystudentnewspaperTheTab.AndtheuseofmodafinilismostwidespreadatOxfordUniversity,whereaquarterofstudentshavereportedtohaveusedit.Overtheyears,universitieshavediscussed