福建省福清龙西中学高三（最后冲刺）新高考英语试卷及答案解析

福建省福清龙西中学高三（最后冲刺）新高考英语试卷注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。2．回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑，如需改动，用橡皮擦干净后，再选涂其它答案标号。回答非选择题时，将答案写在答题卡上，写在本试卷上无效。3．考试结束后，将本试卷和答题卡一并交回。第一部分（共20小题，每小题1.5分，满分30分）1．Usuallydoctorsareunderstandably________aboutnewmedicinesbecauseoftheuncertaintyoftheireffects.A．considerateB．logicalC．optimisticD．cautious2．—Haveyoufinishedallyourexercises?—Yes,________isleft.Asamatteroffact,theyareaseasyasABC．A．nothing B．notone C．none D．neither3．______tosuccesscan’tdefeatus.Instead,theycanonlymakeusstronger.A．Attempts B．BarriersC．Contributions D．Access4．Mariaisconstantlymakingefforts,shedeservesthegoalofenteringthekeyuniversity.A．achieving B．toachieve C．beingachieved D．tobeachieve5．Thepolicehaveanyonewithinformationtocomeforwardandtalktothem.A．appealedtoB．attendedtoC．respondedtoD．attachedto6．---Howdidyouliketheconcertlastnight?---Ienjoyeditverymuch,butthedancers______abetterjob.A．couldhavedone B．couldn’thavedone C．coulddo D．haddone7．．Althoughitinthedesertmostoftheyear,peoplestilllivethere．A．doesn’train B．didn’train C．hasn’trained D．hadn’trained8．________backinhischair,themanbegantotellushisadventuresintheforests.A．SitB．SittingC．TositD．Sat9．________challengesinChinascar-sharingeconomy,sharedmobilitystillhasapromisingfuture.A．Despite B．BesidesC．Concerning D．Regarding10．Largequantitiesoftime______forpractisingguidedwritings.A．wasneeded B．areneeded C．needs D．isneeded11．Peterson,agreatarchaeologist,said:“Archaeologistshavebeenextremelypatientbecausewewereledtobelievethattheministrywas________thisproblem,butwefeelthatwecan'twaitanylonger.”A．lookingout B．bringingout C．carryingout D．sortingout12．Aheartylaughrelievesphysicaltension,_____yourmusclesrelaxedforoverhalfanhour.A．toleave B．left C．leaving D．leave13．Wecompletedonethirdoftheproject,andtheloan_______inplace,wehadtodelaytheresttillthenextmonth.A．notarranged B．wasnotarrangedC．notarranging D．hadnotbeenarranged14．IamsorryIamverybusynow.IfItime,Iwouldcertainlygotothemovieswithyou.A．have B．hadC．havehad D．hadhad15．Thewholenationisstrugglingtoworkoutaninexpensive______effectivesolutiontosmog.A．yet B．still C．or D．though16．Self-confidenceisakindofqualityandthatisittakestodoeverythingwell.A．why B．thatC．what D．which17．—Youmeanthepositionisstillvacant?—Yes,butyoumustknowourjobisverydemanding.—_______.A．WithpleasureB．Idon’tmindC．Don’tmentionitD．That’sallright18．I'veheardthatpreparations______forthecomingfestival.Let'sgivethemahand.A．arebeingmade B．havebeenmadeC．aremaking D．havemade19．Youcan’timaginehowexcitedwewere________thatourschoolmateshadwonthefirstplaceinNationalRobotCompetition.A．learning B．havinglearnedC．tobelearning D．tolearn20．WhenIsaidsomeonebroketheschoolregulations,I______you.Whydidyougetthatangry?A．don’treferto B．haven’treferredto C．wasn’treferringto D．hadn’treferredto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）阅读理解Onthefirstdayofschoolourprofessorintroducedhimselfandchallengedustogettoknowsomeonewedidn'tknow.Ilookedroundwhenagentlehandtouchedmyshoulder.Iturnedaroundtofindawrinkled,littleoldladywithasmile.Shesaid,“Hi,handsome.MynameisRose.I'meighty­sevenyearsold.CanIgiveyouahug？”Ilaughedandenthusiasticallyresponded,“Ofcourseyoumay！”Shegavemeagiantsqueeze.“Whyareyouincollegeatsuchayoung，innocentage？”Iasked.“IalwaysdreamedofhavingacollegeeducationandnowI'mgettingone！”shetoldme.AfterclasswewalkedtotheStudentUnionbuildingandsharedachocolatemilkshake.Webecameinstantfriends.Everydayofthenextthreemonthswewouldleaveclasstogetherandtalknon­stop.Iwasalwayslisteningtothis“timemachine”asshesharedherwisdomandexperiencewithme.Overthecourseoftheyear,Rosebecameacampusicon(偶像)andsheeasilymadefriendswherevershewent.AttheendofthesemesterweinvitedRosetospeakatourfootballdinner.I'llneverforgetwhatshetaughtus.“Wedonotstopplayingbecauseweareold;wegrowoldbecausewestopplaying.Thereisahugedifferencebetweengrowingolderandgrowingup.Anybodycangrowolder.Thatdoesn'ttakeanytalentorability.Theideaistogrowupbyalwaysfindingopportunitiesinchange.Havenoregrets.Theelderlyusuallydon'thaveregretsforwhatwedid,butratherforthingswedidnotdo.Theonlypeoplewhofeardeatharethosewithregrets.”Sheconcludedherspeechbycourageouslysinging“TheRose”．Shechallengedeachofustostudythelyrics(歌词)andlivethemoutinourdailylife.Attheyear'sendshefinishedthecollegedegreeshehadbegunallthoseyears.OneweekaftergraduationRosediedpeacefullyinhersleep.1、Whathappenedtotheauthoronthefirstdayofschool?A．Hegottoknowanoldprofessor.B．Hemadetheacquaintanceofanoldlady.C．HejoinedtheStudentUnion.D．Hehadtoshareamilkshakewithothers.2、FromtheunderlinedsentenceinParagraph1,wecanfindouttheauthor's________.A．concernaboutageB．respectfortheoldC．curiosityabouttheladyD．complaintabouteducation3、Intheauthor'seyes，________.A．RosewasinnocentandgenerousB．RosewaswiseandskilledC．Rosewastalentedandhard­workingD．Rosewascourageousandherwordswereinspiring4、WhichsayingmightRosepossiblysupport________.A．Oneisnevertoooldtolearn.B．Afriendinneedisafriendindeed.C．Romewasn'tbuiltinaday.D．Itisnousecryingoverspiltmilk.22．（8分）Ifyoucouldtravelbackintimefivecenturies,you’dencounterafreshlypainted“MonaLisa”inRenaissanceEuropeandcoolertemperaturesacrosstheNorthernHemisphere.ThiswasaworldinthemidstoftheLittleIceAgeandaperiodofvastEuropeanexplorationnowknownastheAgeofDiscovery.Butwhatifwecouldlook500yearsintothefutureandglimpsetheEarthofthe26thcentury?Wouldtheworldseemasdifferenttousasthe21stcenturywouldhaveseemedtoresidentsofthe16century?Forstarters,whatwilltheweatherbelike?Dependingonwhomyouask,the26thcenturywilleitherbealittlechillyorextremelyhot.Somesolaroutputmodelssuggestthatbythe2500s,Earth’sclimatewillhavecooledbackdowntonearLittleIceAgeconditions.Otherstudiespredictthatongoingclimatechangeandfossilfuelusewillleavemuchoftheplanettoohotforhumanlifeby200.SomeexpertsdatethebeginningofhumanclimatechangebacktotheIndustrialRevolutioninthe1800s,otherstoslash-and-burnagriculturalpracticesinprehistorictimes.Eitherway,tool-wieldinghumansaltertheirenvironment—andour26thcenturytoolsmightbequiteimpressiveindeed.TheoreticalphysicistandfuturistMichioKakupredictsthatinamere100years,humanitywillmaketheleapfromatypezerocivilizationtoatypeIcivilizationontheKardashevScale.Inotherwords,we’llbecomeaspeciesthatcanusetheentiresumofaplanet’senergy,masteringcleanenergytechnologiessuchasfusionandsolarpower.Furthermore,they’llbeabletohandleplanetaryenergyinordertocontrolglobalclimate.Technologyhasimprovedsignificantlysincethe1500s,andthispacewilllikelycontinueinthecenturiestocome.PhysicistStephenHawkingproposesthatbytheyear2600,thisgrowthwouldsee10newtheoreticalphysicspaperspublishedevery10seconds.IfMoore’sLawholdstrueandbothcomputerspeedandcomplexitydoubleevery18months,thensomeofthesestudiesmaybetheworkofhighlyintelligentmachines.Whatothertechnologieswillshapetheworldofthe26thcentury?FuturistandauthorAdrianBerrybelievestheaveragehumanlifespanwillreach140yearsandthatthedigitalstorageofhumanpersonalitieswillenableacomputerizedstateoflivingforever.Humanswillfarmtheoceans,travelinstarshipsandresideinbothlunarandMartiancolonieswhilerobotsexploretheoutercosmos.1、WhydoestheauthormentiontheLittleIceAgeinthefirstparagraph?A．Toshowtheseverityofthecurrentglobalwarming.B．Tostressthecloseconnectionwiththecurrentclimate.C．Toprovidecontrasttothepredictionoffutureclimate.D．Toillustratetheimportanceofprotectingtheenvironment.2、ThepredictionthatEarthwillcooldownisbasedon________.A．changesinsolaractivity B．ongoingclimatechangeC．previousgeneralassumptions D．currentconsumptionoffossilfuel3、Whateffectwillthe26thcenturytechnologieshaveonhumanbeings?A．Humanswillsufferfromsevereglobalwarming.B．Cybertechnologyhelpshumanpersonalitiessurvive.C．Humansneedn’tworkwiththeapplicationofrobots.D．Highlyintelligentmachineswillreplacehumans.23．（8分）Kyleismybigbrother.Foreighteenyears,IfeltthatKylewasmyenemy.Infact,Ifounditridiculousthatpeoplethoughtolderbrotherslookedoutfortheirsisters,protectedthemandfoughtofftheirsisters，bullies.Huh?Mybrotherwasthebully(恃强凌弱者).Whenwewerelittle,hisfightswithotherscausedmyonlyblackeye,cutsinmylipsandevenanosebleedortwo.IoftenwishedIwereanonlychild!Timeflew.Weendedupattendingcollegestwothousandmilesapart,yet,strangely,that’swhenwebegancommunicating.Throughe-mail,wekeptinconstanttouch.MostlyIcomplainedaboutserioushomesickness,impossibleroommates,difficultclasses,and…dating.IfeltIlostmyself.Ataparticularlylowtime,IcriedtoKyleaboutmyinjuredconfidence,mybrokenheart,andtheparticularjerk(蠢人)whobrokeit.Andthat’swhenthepackagearrived.“What’sthis?”IthoughtasItoreintoit.Theboxrevealedasweatshirt.“PhiDeltaTheta?That’sKyle’sfrat(兄弟会).”Kylewasthepresidentofthefrathouse.Whywouldhesendthis?Iputitasideanddugdeeper.Apileofletters.Andtheywerealladdressedtome.Iopenedtheoneontop.“Katrina,”itsaid,“yourbrothershowedmeyourpictureandIthinkyou’reawesomeandbeautiful.”Irolledmyeyes.“Yeah,sure.”Iopenedanotherletter.Andanother.Eighteeninall.Eachonewasfromadifferentguy.Theycomplimented(恭维)me.Theyinvitedmeondates.AndtheytriedtoconvincemetomakeatripouttoKnoxCollegeandmeetthem.Ilovedit.Ididn’tcareaboutthemotive.Andmostly,Ilovedtheideathatmybigbrotherhadpulleditoff.Ipickedupthephone.“Kyle,theboxcameandIcan’tbelievewhatyoudid.”ButKylewasn’tacceptingcompliments.“Oh,”hesaid,“Iwasjusttiredofreadingyourcomplaints”.Bigbrothers,Idecided,reallydidprotecttheirsisters.AndminefoughtoffthebiggestbullyI’devermet.NowIreturntomytrueself,fullofconfidence.1、WhydidtheauthorusetocallKyleherenemy?A．Hehadmanyfightswithher.B．Hecouldn’tfightoffherbullies.C．Hebulliedherfromtimetotime.D．Hisfightscausedhertosufferalot.2、Whydidthefratguyswritetotheauthor?A．Theyhadmercyonher.B．Theytriedtocheerherup.C．Theywerestruckbyherbeauty.D．Theywantedtocomplimenther.3、Whatdoestheunderlinedpartinthelastparagraphreferto?A．Myself-doubt.B．Myhomesickness.C．Theparticularjerk.D．Thechallengingclasses.4、What’stheauthor’spurposeinwritingthispassage?A．Toshareherchildhoodexperience.B．Tocomplainaboutherbiggestbully.C．Toshowherbrother’sprotectionforher.D．Tointroduceheradjustmenttocollegelife.24．（8分）Davidwasabout8whenhelearnedhowtoswim.Hegotsogoodthatheeventuallypickedupfreediving,asportwherediversholdtheirbreathuntilresurfacinginsteadofusingbreathingequipment.Heneverimaginednearlytwodecadeslaterhewouldcometousethatskillinsuchaway.Itisanextraordinaryactofcourage,buttohavethemomentcaughtoncamerafortheworldtoseeissomethingelseentirely.Thescenewasfilmedbysomeoneonthesameboatandwasputonline.Thevideowassharedimmediatelybynationalandglobalmedia.ThatAugustdaybeganwithDavidboatingaroundwithhisfriends.TheyspottedawomandrivingabrightredMazdaheadingrightintohighwater.Davidandhiscrewtriedtowarnhertostop,butbythenitwastoolate,andthecarhadalreadyslidunderwater.InthemomentsbeforeDavidjumpedintothosemuddyfloodwaterstoteartheroofoffthecarwithhisbarehands,histhoughtprocesswasshort.Infact,hedidn’thaveone.“Thecarwassinkingfast,”Davidsays.“Therewasnotimetothink.Ithadtobedone.”Upuntilrecently,Davidhadn’treunitedwiththewomanhesaved.Hewasperfectlyfinewithsavingastrangerandremainingunknowntoher.Stilltothisday,evenaftertheattentionthevideoreceived,afterthemediafromallovertheglobelandedonhisfrontyard,Daviddoesn’tthinkitabigdeal.“IthinkIwasjustlucky,”Davidsays,smiling.“Ihappenedtobeattherightplaceattherighttime.”1、177．WhatdidDaviddoonthatAugustday?A．Hepickedupfreediving.B．Herescuedawoman.C．Hedroveintothewater.D．Hefilmedavideo.2、179．Whydidthemedialandonhisfrontyard?A．Totakephotosofhisyard.B．Tomakeadealwithhim.C．Tokeepaneyeonhim.D．Todigformoreabouthim.3、181．WhatkindofpersonisDavid?A．Ambitious.B．Considerate.C．Modest.D．Conservative.25．（10分）HotSpotsforRetireestoStartTheirEncoreCareerEncoreCareer:VocationalSchoolInstructorRetirein:LosAngeles,CAEversinceIBMCEOGinniRomettycoinedtheterm“newcollar”todescribewell-paidjobsthatrequirespecificskillsbutnotnecessarilyadegree,vocationalschoolshavemadeaseriouscomeback.ApparentlyinstructorsareinshortsupplyinsunnyL.A．,wherethereare13jobsatvocationalschoolsforeveryapplicantonthemarket.Thisisagreatopportunityforskilledretireessince,unliketeachingatapublicschoolthatrequiresastatecertificate,theonlyrequirementhereisthatyoubeaseasonedexpertinyourfield.EncoreCareer:BusinessConsultantRetirein:Miami,FLConsultingisagreatoptionforaretiredbusinessprofessionallookingtomaketheirownhours,betheirownboss,andearnasmuchoraslittleasneededtomaintaintheirstandardofliving.ForeveryconsultantinMiamirightnowthereare13businesseshopingtohirethem.There'sevengreaterdemandherethaninWashingtonD．C．,whichistypicallyconsideredtheconsultingcapitaloftheworld.EncoreCareer:TouristWranglerRetirein:Austin,TXAstheeconomycontinuestoboomandmoreAmericanshaveextraincometospend,thetourismindustryhastakenoff.ThisisparticularlytrueinAustin,TX,wheretherewereastonishing36tourismjobsforeveryapplicantinJuly.Betweenfour-starhotels,thenoisyrockn'rollscene,andanewfoodculture,Austinistheplacetobeifyouwanttoworkinserviceindustry.EncoreCareer:SupporteroftheArtsRetirein:Charleston,SCIfyou'reaBabyBoomerwithadegreeinthearts,nowcouldbetheperfecttimetorevisityourpassionforcreativity.,especiallyifyoualsowanttoliveinthecenterofsoutherncharm.Betweenthe14artgalleriesonKingStreetinOldTown,anabundanceofactingcompaniesandtheaters,andmusicfestivals,it'snotsurprisingtherewere25jobsforeveryartyapplicantiiiCharleston.1、Whichcareerfocusesonanapplicant'sskillsinsteadofadiploma?A．VocationalSchoolInstructor. B．BusinessConsultant.C．TouristWrangler. D．SupporteroftheArts.2、Whichcityoffersanapplicantmorejoboptionsthantheothers?A．LosAngeles. B．Miami.C．Austin. D．Charleston.3、Whoisthetextintendedfor?A．Children. B．Graduates.C．Retirees. D．Tourists.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）MydaughterJulieandIwentshoppingthismorning.Alittlepartofmethoughtaboutgoingtoanothercheckoutline.Thisonehadtheshortestqueue,therewasonlyoneguyinit,buthewasina1andthereseemedtobesomecomplicationsgoingon.Well,Istampedonthatlittlepart,andwesteppedin2him.Atfirst,heseemedtobehaving3gettinghisgroceriesontotheconveyorbelt(输送带).Butafterawhile,I4thatwhathewasactuallydoingwasdividingthemintotwolots.Still,gettingthestuffuptherewasno5taskinitself.I6tohelp,butheandthecheckoutladyhaditunder7HeaskedJulieifshewould8puttinghisemptybasketaway.Thenhe9forhiswalletwhichwasinapouch(小袋子)ononesideofhischair.Thewayhewaspositionedandthefactheonlyhadoneusable10madethisquiteastretchforhim,soIhelpedthere.Whatmustitbelike,I11,tobesodependentonotherpeoplelikethat?Thecheckoutoperatorcamearoundandgavehimhis12andtheitemsheneededtohavetohand.Iofferedtoget13biggerbagandhesaid,“No.butyoucoulddomeafavor.TakethatlotalongtotheentranceandgiveittoAngela.”I14didthat,leavingJuliewithourshopping.Angela,itturnedout,wascollectingfoodforpeoplewhomightotherwisego15Ihadn’tevennoticedherbefore.Thisguy,despitethelimitationthathis16conditionimposed(强加于)onhim,hadboughtmorethantwiceasmuchshoppingasheneeded.Hemayhavebeen17physically,buthisheartwasmorethancapableof18allthat.Anditchangedmyideaof19whenIrealizedthatthehelphehadgivenwas20thehelphehadreceived.1、A．taxi B．wheelchair C．grocery D．bench2、A．before B．behind C．near D．beyond3、A．difficulty B．potential C．doubt D．ability4、A．regretted B．recognized C．requested D．realized5、A．special B．obvious C．easy D．necessary6、A．struggled B．offered C．forced D．preferred7、A．control B．consideration C．repair D．attack8、A．mind B．finish C．enjoy D．escape9、A．hoped B．chose C．reached D．begged10、A．leg B．knee C．foot D．arm11、A．warned B．wondered C．feared D．insisted12、A．change B．bill C．note D．coin13、A．more B．another C．other D．theother14、A．desperately B．faithfully C．sadly D．Gratefully15、A．thirsty B．tired C．hungry D．crazy16、A．mental B．natural C．official D．physical17、A．admired B．limited C．forgotten D．accepted18、A．overcoming B．keeping C．passing D．destroying19、A．pride B．patience C．dependence D．bravery20、A．otherthan B．morethan C．lessthan D．ratherthan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）ShawnStevensonsaysthatthebesttimetogotobedis10p.m.Weshouldthenwakeupat6a.m.Heis1．expertstudyinghumansleepingpatterns.Hebelieves10p.m.isthebestbedtimebecausethisiswhenthesun2．(set),and6a.m.istheperfecttimetowakeupbecausethisis3．thesunrises.Thecloser4．(we)sleepingpatternistothemovementofthesun,hesays,the5．(much)energywewillhaveduringtheday.Healsosaysthatlookingatelectronicslikecomputersandphonesbefore6．(go)tobedmakessleepingdifficult.Thebluelightfromtheseelectronicsistheworst.7．youneedtolookatanelectronicdevicebeforesleep,hesays,youshouldchangethesettingsothatthereislessbluelight.Healsosaysyoushouldavoidcaffeine(咖啡因),sugaranddairy8．(product)suchasmilkorcheese9．theevening.Thiswillmakeiteasierforyou10．(sleep).第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）下面是一段短文，请你对其进行修改。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：在缺词处加一个漏词符号（∧），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。AswasreportedthattherewasanaccidentatacorneroftheRomanStreetinthismorning、Acarranintoatruckandfortunately,nobodygotinjured、Whowillberesponsibleforanaccidentisstillunderinvestigation、Whatthepoliceshoulddonowisthattheymustfindoutwhatledtheaccident、Theysaiditwasdifficultofthemtojudgebecausehowtheaccidenthappenedwasnotclear、Perhapsthereasonwasthatthedriverwastootiringtostopthecarintime、Thedriverdidn'tadmitthefactthatheisdrivingtoofastattheturning、Thepolicedoubtedthatwhathesaidwastrueanddecidedtomakeafartherinvestigation、第二节书面表达（满分25分）29．（25分）假定你是李华，计划本周末和同学一起去观看《经典咏流传》(EverlastingClassics)节目，得知外教Nancy也很感兴趣，请给她写一封邮件，邀请她一同参加。内容包括：1.集合时间及地点；2.现场活动：交流与互动。注意：1.词数100左右；2.可以适当增加细节，以使行文连贯；3.开头和结尾已给出，不计入总词数。DearNancy，________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Yours，LiHua

参考答案第一部分（共20小题，每小题1.5分，满分30分）1、D2、C3、B4、B5、A6、A7、A8、B9、A10、B11、D12、C13、A14、B15、A16、C17、B18、A19、D20、C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、Everyday,peoplecomeintocontactwiththousandsofchemicals.Thesechemicalsaresaidtobeharmlesstohumanhealth.Infact，thechemicalsareconsideredsosafethatwewashwiththem.Weputthemonourbodiesandevenourfaces.Otherchemicalproductsareusedthroughoutourhomes.Bythetimeyouwalkoutofyourfrontdoor,youhavealreadybeenexposedtothousandsofchemicals.Onitsown,eachchemicalseemsharmless.Butincombinationwithotherchemicals,theymaybecomedeadly.Thatisthefindingofatwo-yearstudybyahigh-profiletaskforceofscientists.Thetaskforcewastoldtoinvestigatethecancer-causingpossibilityofchemicalmixtures.LindaGulliverwasoneof174scientistsonthetaskforce.Theirjobwastostudythecancer-causingpotentialof85chemicals.All85aresaidtobecommonintheenvironment.Ms.Gulliverexplainsthatchemicalshavethepotentialorytoformdangerousmixtures.Evensimplemineralscanbecomedangerouswhenmixedwithchemicalsfoundinplasticsorbeautyproducts.Workingingroups,thescientistsexploredhowdifferentchemicalmixturescouldleadtocancer.Ms.Gulliver’steamlookedattheabilityofdifferentcombinationstosupportthein-creaseofmalignant(恶性的)humancells.Shesaysthecurrentwaytoidentifywhetherchemicalscausecanceristotestthemoneatatime.Th