2025屆湖南省汨羅市高三第三次模擬考試英語試卷含解析

2025屆湖南省汨羅市高三第三次模擬考試英語試卷考生請注意：1．答題前請將考場、試室號、座位號、考生號、姓名寫在試卷密封線內，不得在試卷上作任何標記。2．第一部分選擇題每小題選出答案后，需將答案寫在試卷指定的括號內，第二部分非選擇題答案寫在試卷題目指定的位置上。3．考生必須保證答題卡的整潔。考試結束后，請將本試卷和答題卡一并交回。第一部分（共20小題，每小題1.5分，滿分30分）1．Myneighbourcametoaskmewhytherewassomuchnoiseinmyhouseyesterdayafternoon.ItoldherthatsomechildrenanEnglishsong.A．praticed B．wouldpractice C．havepracticed D．werepracticing2．Lookoverthere!Thereisalong,windingpath________uptothehouse.A．lead B．leadingC．led D．tolead3．Acceptanceisnotaboutlikingasituation.Itisaboutacknowledgingallthathasbeenlostand________tolivewiththatloss.A．learning B．learnedC．tolearn D．havinglearned4．Themajorityofnewbusinessesfailbecause,________theyhaveaproductorservicethatfillsagapinthemarket,theyusuallylacktheskillsinsales,marketing,andadministration.A．nowthatB．evenifC．aslongasD．asthough5．—Listeningtolanguagerecordinginbedseemslikeaneasywayto_______somenewvocabulary.—Butdoesthislearningmethodactuallywork?A．polishupB．makeupC．pickupD．buildup6．Ateacher’sjobisnottotellthestudentswhattobelieveorvalue,butto________themtodevelopaworldviewforthemselves.A．urge B．equipC．persuade D．rank7．WhenIwastwenty,Ihadto________beforegraduationandworkinaclothesshoptohelpsupportmyfamily.A．comeout B．stayoutC．leaveout D．dropout8．Thisfootballplayerwasaccusedoftakingmoneyfornotscoringgoals______.A．bychance B．onend C．inturn D．onpurpose9．Accordingtothebankrulesreleasedrecently,youhavetopaya25%________oneachchequeyoucash.A．admission B．pensionC．allowance D．commission10．Nodrivingafterdrinkingisarulethateverydriver____________obeyinourcountry.A．will B．shallC．may D．can11．Raisingtheincomesofthepoorislikelytobeineffectiveinawealthysociety,________accompaniedbyothermeasures.A．once B．when C．if D．unless12．________childrenbelievetheycansucceed,theywillneverbecometotallyindependent.A．IfB．SinceC．UnlessD．Though13．Thebooksonthedesk,coversareshiny,areprizesforus.A．which B．what C．whose D．that14．—Areyoureadytoleave?—Almost,I’llbereadytogojustassoonasI________puttingthecleandishesaway.A．getthrough B．giveupC．carryout D．setabout15．TherecentlyreleasedfilmKong：SkullIslandsuccessfully________theaudiencetotheadventurewithDolby3-Dtechnology.A．transportsB．adjustsC．transformsD．relates16．—IsPetercoming?—No,he____hismindafteraphonecallatthelastminute.A．changes B．changedC．waschanging D．hadchanged17．—Howwasyourjobinterview?—Verysuccessful.I________myhomeworkaboutthecompany,youknow.A．haddoneB．havedoneC．didD．wasdoing18．AfterreceivingtheOscarforBestSupportingActress,AnneBenedictwentonallthepeoplewhohadhelpedinhercareer.A．tothank B．thankingC．havingthanked D．tohavethanked19．Howlongdoyousupposeitis________________hearrivedandbegantoworkthere？A．when B．beforeC．after D．since20．Mynewjob_______mytravellingalloverthecountry,whichmeansIwon’tbeabletospendmuchtimewithmyfamily.A．takes B．promises C．involves D．causes第二部分閱讀理解（滿分40分）閱讀下列短文，從每題所給的A、B、C、D四個選項中，選出最佳選項。21．（6分）Tulou,thespecialresidentialarchitectureofFujianProvincewasincludedontheUNESCO’sWorldHeritageListduringthe32ndsessionoftheWorldHeritageCommitteeinQuebec,Canada.Inthefourthcentury,HanChineselivingintheCentralPlainsareabegantomigratesouth,graduallygatheringinFujianandformingtheHakkacommunities.Asadefenceagainstenemies,theHakkaschosetoliveincompact(緊湊的)communities,andthetulouwastheirpreferredhouses.TensofthousandsofsuchearthenstructureswereconstructedinFujianProvince.Mosttulousaretobefoundinthevalleys,surroundedbyhighmountains,andsomeareinthedepthsofthegreatmountains.Mostarethreetofourstorieshigh,andlooklikecircularblockhouses（堡壘）.Roomsonthefirstfloorareusedaskitchens,roomsonthesecondfloorareusedasbarns(谷倉),androomsonthethirdandfourthfloorsareforbedroomsandlivingrooms.Fordefensivepurposes,theroomsonthefirstfloorhavenowindows.Rawmaterialsforthetulouwereobtainedlocally.Theirmainbuildingmaterialwasamixtureofclay,sand,limeandwater,andeggwhites,brownsugarandricewaterwereaddedasadhesiveagents（粘合劑）.Itwasthenmixedtoformthewalls.Oncetheydried,thewallsweresohardthatdrivinganailintothemwouldhavebeendifficult.Firbranches,whichareextremelystronganddonotrot,wereusedtostrengthenthem,andmanycenturieslatertheyhaveremainedtheiroriginallook.Tulousarelocatedinaregionwhereearthquakeshappenfrequently,andtheircircularconstructionhelpsthemresisttheregularshocks.TheprovendesigneveninspiredonefamousPeruvianarchitect,whopaidseveralvisitstoYongding,tobuildatuloubackhome.Notlongafter,anearthquakestruckonly10kilometersaway,andwhileallthehousesaroundtheearthenbuildingfelldown,histulouremained.1、Fromthepassage,weknowthatTulou______.A．isaspecialresidentialarchitectureofHanChineseinFujianeventodayB．wasoncetheplacewheretheHakkaschosetolivetogetherC．standsinthevalleysandisalsomodernpeople’spreferredhousesD．lookslikecircularblockhousesbuteasytofalldownintheearthquake2、WhichofthefollowingisTRUEaccordingtothepassage?A．HakkasbuilttulouswhentheylivedintheCentralPlainsarea.B．Rawmaterialsforthetulouwereobtainedfromfaraway.C．Itisdifficulttodigaholeintothewallsofthetulou.D．Firbranchesmayhelpthemresisttheregularshocks.3、Whatwouldbethebesttitleforthepassage?A．OneofUNESCO’sWorldHeritageListB．TheFunctionofTulousC．YongdingCountyandTheHakkasD．ThespecialEarthenArchitectureofFujian22．（8分）Childrenmovingfromprimarytosecondaryschoolareill-equippedtodealwiththeeffectofsocialmedia,asitisplayinganincreasinglyimportantroleintheirlivesandexposing(暴露)themtosignificantrisk,accordingtoarecentreportbytheOfficeoftheChildren’sofficerofEngland.Thereportshowsthatmanychildreninyear7–thefirstyearofsecondaryschool,whenmostofthestudentswillhaveaphoneandbeactiveonsocialmedia–feelunderpressuretobeconstantlyconnected.Theyworryabouttheironlineimage,particularlywhentheystarttofollowcelebrities(名人)onInstagramandplatforms.Theyarealsoconcernedabout“sharenting”–whenparentspostpicturesofthemonsocialmediawithouttheirpermission–andworrythattheirparentswon’tlisteniftheyaskthemtotakepicturesdown.Thereport,whichwascreatedwithdatafromfocusgroupinterviewswith8-to12-year-olds,says,thatalthoughmostsocialmediasiteshaveanofficialagelimitof13,anestimated(估計)75percentof10-to12-year-oldhaveasocialaccount.Someofthemarealmostaddictedto“l(fā)ikes”,thereportsays.Aaron,an11-year-oldinyear7,toldresearchers,“IfIgot150likes,that’sprettycool,itmeanstheylikeyou.”Somechildrendescribedfeelinginferior(下級的)tothosetheyfollowonsocialmedia.Aimee,also11,said,“Youmightcompareyourselfbecauseyou’renotveryprettycomparedtothem.”Children’sofficerofEnglandAnneLongfieldiscallingonparentsandteacherstodomoretopreparechildrenfortheemotionimpactofsocialmediaastheygetolder.Shewantstoseethecoursessetforstudentsinyear6and7.“Itisalsoclearthatsocialmediacompaniesarestillnotdoingenoughtostopunder-13susingtheirplatforminthefirstplace,”Longfieldsaid.“Justbecauseachildhaslearnedthesafetymessagesatprimaryschooldoesnotmeantheyarepreparedforallthechallengesthatsocialmediawillpresent,”Longfieldsaid.“Itmeansabiggerroleforschoolsinmakingsurechildrenarepreparedfortheemotionaldemandsofsocialmedia.Anditmeanssocialmediacompaniesneedtotakemoreresponsibility,”Longfieldsaid.1、Whatcanwelearnfromthereport?A．Anincreasinglynumberof7-year-oldsarebeingexposedtosocialmedia.B．Socialmediaoccupiedtoomuchtimeforsecondaryschoolstudents.C．Manysecondaryschoolstudentssufferfromsocialmedia-relatedstress.D．Theuseofsocialnetworkingiscausingrelationshipproblemwithfriends.2、Somestudentsinyear7areconcerned.A．abouthowtheyareseenonsocialmediasites.B．aboutbecomingaddictedtosocialmedia.C．thattheirparentswillmonitortheiruseofsocialmedia.D．thattheirparentswon’tallowthemtopostpictures.3、Fromthereport,itcanbeconcludedthatsome10-to12-year-oldchildren.A．tendtocopythecelebritiestheyfollow.B．wishtoberecognizedbyothers.C．ignorethenumberoflikestheyget.D．feelinferiortotheirfollowers.4、AnneLongfieldsuggeststhat.A．parentsmonitorhowtheirchildrenusesocialmedia.B．socialmediacompaniessetanofficialagelimitof13.C．socialmediacompaniescreatespecialsitesforchildrenunder13.D．schoolshelpequipstudentsforthechallengeofsocialmedia.23．（8分）DoyouwanttodosomevolunteerworkwhileexploringAfrica?Thenjoininour21-DayFlagshipProgram.Stepontotheflat,sandylandofGhana,andyou’llimmediatelyhearthelaughterofchildreneverywhere.ThislaughterwillbetheconstantofyourtripandasteadysourceofenergywhileyouvolunteeramongoneofAfricaskindcommunities.CommunityServiceVolunteerinprimaryschools,workingwithchildrenofdifferentagestohelpimprovetheirEnglishskills,tutorthosewhomightbefallingbehindandcontributetoeachschool’sneeds,includingmakingimprovementstothefacilities.Splityourtimebetweenteachingandcampusrefurbishment(翻修)projectstoserveeveryaspectoftheschool,andlearnallabouteducationinGhana.Hands-onLearningParticipateinworkshopssuchasbatikclothdyeing(蠟染),drumming,dancingandcrashcoursesinthenativelanguage,EweorKrobo.You'llbegivenaGhanaiannamebythelocalchiefofyourvillage,andvisitaseamstress(女裁縫)tohavecustomclothingmadeoutofcolorfulfabricsyoupurchase.Onthe21-DayFlagshipProgram,you’llhearaboutthenation’shistoryasacenteroftheslavetrade,andvisitFortPrinzensteintotrulyunderstandtheweightofthistopic.AdventureYou’llalsoexperiencethenaturalsurroundingsofGhanawithabeautifulwaterfallhike:Onyour21-DayFlagshipProgram,goonatwo-nighttripwhereyou’llgettovisitamonkeyshelter.LodgingGlobalLeadershipAdventures(GLA)operatestwoHomeBasesforthe21-dayprogram.BotharelocatedoutsideofthecapitalcityofAccrainruralvillagesettings.Accommodationsarebasic,butcleanandsafe.Studentssleepinroomswithroommates,andhaveaccesstosharedbathroomswithcold-watershowers.DatesJune26-July16,2019July9-July29,2019July20-August9,2019Duration:21daysTuition:$5,399CommunityServiceHours:60Formoreinformation,pleasecall1-858-771-0645orsendanemailtoinfo@.1、Whichofthefollowingisarequirementforparticipants?A．BeingabletospeakEnglishwell.B．Beingstrongandover18yearsold.C．KnowingalotabouteducationinGhana.D．Havingdonesimilarvolunteerworkbefore.2、WhatcanbedoneatFortPrinzenstein?A．Learningtoplaydrums.B．Visitingacustomclothingfactory.C．Learningaboutthenation’spasthistory.D．ChoosingaGhanaiannameforyourself.3、Whatwouldparticipantshavetodowhenjoiningintheprogram?A．StayinGhanaforthreeweeks.B．Accompanymonkeysfortwonights.C．Pay5,399dollarsforthewaterfallhike.D．Dovolunteerworkforatmost40hours.24．（8分）閱讀理解Onthefirstdayofschoolourprofessorintroducedhimselfandchallengedustogettoknowsomeonewedidn'tknow.Ilookedroundwhenagentlehandtouchedmyshoulder.Iturnedaroundtofindawrinkled,littleoldladywithasmile.Shesaid,“Hi,handsome.MynameisRose.I'meighty-sevenyearsold.CanIgiveyouahug？”Ilaughedandenthusiasticallyresponded,“Ofcourseyoumay！”Shegavemeagiantsqueeze.“Whyareyouincollegeatsuchayoung，innocentage？”Iasked.“IalwaysdreamedofhavingacollegeeducationandnowI'mgettingone！”shetoldme.AfterclasswewalkedtotheStudentUnionbuildingandsharedachocolatemilkshake.Webecameinstantfriends.Everydayofthenextthreemonthswewouldleaveclasstogetherandtalknon-stop.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(歌詞)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．Rosewastalentedandhard-workingD．Rosewascourageousandherwordswereinspiring4、WhichsayingmightRosepossiblysupport________.A．Oneisnevertoooldtolearn.B．Afriendinneedisafriendindeed.C．Romewasn'tbuiltinaday.D．Itisnousecryingoverspiltmilk.25．（10分）1、Whatcausedmusicalstomoveinanewdirectionduringthe1930's?A．Thedevelopmentofnewmusicalinstruments.B．Theaudiencesdemandformorerealisticartforms.C．Therisingpopularityofothertypesofentertainment.D．Thegreateracceptanceofblackperformersbywhiteaudiences.2、Inwhichperioddidmusicaltheatrebecomemorecomplexanddramatic?A．Pre-1900. B．1900-1929.C．1940-1949. D．1950-1959.3、WhatcanbereasonablyinferredaboutthemusicalWestSideStory?A．Ittolditsstoryinanewway.B．Itwasbasedonatruestory.C．Itwasanon-Broadwayshow.D．Itwasnotverysuccessfulatfirst.第三部分語言知識運用（共兩節(jié)）第一節(jié)（每小題1.5分，滿分30分）閱讀下面短文，從短文后各題所給的A、B、C和D四個選項中，選出可以填入空白處的最佳選項．26．（30分）Thejourneyofwaterasitflowsupontheearthcanbeamirrorofourownpathsthroughlife.Waterbeginsits_____onearthasitfallsfromtheskyandstreamsdownamountainintoastreamorriver.Inthesameway,wecomeintotheworldandbeginourlivesonearth.Likeariverthatflowswithinthe____ofitsbanks,wearebornwithcertaindefiningcharacteristicsthat____ouridentity.Weareborninaspecifictimeandplace,withinaspecificfamily,andwithcertaingiftsand____.Withtheselimitations,wemovethroughlife,____manytwists,turns,andbarriersalongthewayjustasariver____.Waterisagreatteacherthatshowsus____tomovethroughtheworldwithgrace,bravery,determination,and____.Whenariver____atawaterfall,itgainsenergyandmoveson,aswefaceourownwaterfalls,wemayfallhard____wealwayskeepmovingon.Watercaninspireusnottobecomerigid(死板的)withfearorsticktowhat’sfamiliar.Wateris____anddoesnotwastetimestickingtoitspast,butflowsonwardwithout____.Atthesametime,whenthereisa____tobefilled,waterdoesnotrunawayfromitin____ofthedark;instead,watermodestlyandbravelyfillstheemptyspace.Inthesameway,wecanfacethe____momentsofourliferatherthanrunawayfromthem.____,ariverwillemptyintothesea.Waterdoesnotholdbackfrom____inalargerbody,nordoesitfearalossof____orcontrol.Itgracefullyandmodestlyfallsintothevastnessbycontributingitsenergyandjoiningwithout____.Eachtimewemovebeyondourindividualcharacterstobecomepartofsomethingbigger,wecantryourbestto_____theleadoftheriver.1、A．travel B．work C．position D．process2、A．periods B．areas C．boundaries D．admissions3、A．reveal B．govern C．keep D．cast4、A．challenges B．experiences C．opportunities D．demands5、A．bringing B．requiring C．facing D．predicting6、A．crosses B．flows C．pours D．drops7、A．when B．where C．why D．how8、A．modesty B．happiness C．smile D．reputation9、A．springs B．leaves C．runs D．breaks10、A．or B．so C．but D．and11、A．desperate B．brave C．nervous D．merciful12、A．lookingthrough B．lookingafter C．lookingfor D．lookingback13、A．hole B．form C．heart D．post14、A．favor B．fear C．honor D．terms15、A．boring B．changeable C．exciting D．dark16、A．Gradually B．Absolutely C．Eventually D．Actually17、A．dipping B．bringing C．plotting D．joining18、A．life B．liberty C．identity D．root19、A．resistance B．permission C．knowledge D．reward20、A．take B．follow C．lose D．hold第二節(jié)（每小題1.5分，滿分15分）閱讀下面材料，在空白處填入1個適當的單詞或括號內單詞的正確形式。27．（15分）Abouttheyear1898,asmall,dark-hairedhotboynamedCharlieChaplinwasoftenseen1．(wait)outsidethebackentranceofLondonTheatre.Helookedthinandhungry.Hewashopingtogetworkinshowbusiness.Hecouldsinganddance.Aboveall,heknewhow2．(make)peoplelaugh.Buthecouldn’tgetworkandsohe3．(wander)aboutthecitystreets.Sometimeshe4．(send)awaytoahomeforchildrenwhohadnoparents.ButtwentyyearslaterthisnameChaplinbecamethe5．(great),best-known,andbest-lovedcomedianintheworld.AnyvisitortothecinemamusthaveseensomeofChaplin’sfilms.Peopleeverywherehavesatandlaughedatthemuntilthe6．(tear)randowntheirfaces.Evenpeoplewhodon’tunderstandEnglishcanenjoyChaplin’sfilmsthoughmostofthemare7．(silence).Itisn’t8．hesaysthatmakesuslaugh.Hiscomedydoesn’tdependuponwordsandlanguages.Itdependsuponlittleactionswhichmean9．samethingtopeopleallovertheworld.It’sakindofworldlanguage.ChaplinlivedmostofhislifeinAmericaanddiedinSwitzerlandonChristmasDay,1977,attheageofeighty-eight.Theworldwasshocked10．thenewsofthedeathandlostinsadness.第四部分寫作（共兩節(jié)）第一節(jié)短文改錯（滿分10分）28．（10分）假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有10處錯誤，每句中最多有兩處。每處錯誤僅涉及一個單詞的增加、刪除或修改。增加:在缺詞處加一個漏詞符號(^)，并在此符號下面寫出該加的詞。刪除:把多余的詞用斜線(＼)劃掉。修改:在錯的詞下劃一橫線，并在該詞下面寫出修改后的詞。注意：1、每處錯誤及其修改均僅限一詞；2、只允許修改10處，多者(從第11處起)不計分。IoncegetaVIPpasstoahugeconcertgivenbyoneofthemostpopularrockbandsinworld、Theticketqualifiedmetomeetallthememberofthebandbackstagebuttowatchthewholeprocessofsettingupfortheconcert、Theguitaristwasamanwhomwasverykind、Ididnothavemuchanxietywhilegettingtoknowthembetter,buttherestweremoreofreserved、Theyjustsmiledandmadefriendgestures、Anyway,watchingthestagebeingsetupandallthemicrophonesbeingchecking,Iunderstoodhowharditwastoputtingonastadiumconcert、Ittookhoursofpreparationtoproducequalitysound、第二節(jié)書面表達（滿分25分）29．（25分）每年的8月8日是“全民健身日”，為了讓這項運動更加深入人心，某英文雜志的《運動與健康》欄目正在以“Let'sTakeExerciseTogether”為題，向廣大中學生征文，請你根據以下要點提示寫一篇文章，向該欄目投稿。運動的重要性運動的時間與方式●保持健康●培養(yǎng)個人的性格……●上學時步行或騎自行車●上體育課時做各種鍛煉(跑步、打籃球……)●周末與朋友去爬山、游泳……參考詞匯：keepfit,train,aperson'scharacter,onfoot,PEclasses,climbmountains注意：1.短文須包含要點提示中的所有信息，并適當發(fā)揮；1．詞數100左右，開頭已給出，不計入總詞數；2．文章中不得出現(xiàn)真實的人名、校名和地名。Let'sTakeExerciseTogetherIt'sveryimportantforustotakeexercise.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

參考答案第一部分（共20小題，每小題1.5分，滿分30分）1、D2、B3、A4、B5、C6、B7、D8、D9、D10、B11、D12、C13、C14、A15、A16、B17、A18、A19、D20、C第二部分閱讀理解（滿分40分）閱讀下列短文，從每題所給的A、B、C、D四個選項中，選出最佳選項。21、1、B2、C3、D22、1、C2、A3、B4、D23、1、A2、C3、A24、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(惡性的)humancells.Shesaysthecurrentwaytoidentifywhetherchemicalscausecanceristotest