2023届四川省成都经开实中高三第二次联考英语试卷（含答案解析）

2023高考英语模拟试卷注意事项1．考试结束后，请将本试卷和答题卡一并交回．2．答题前，请务必将自己的姓名、准考证号用0．5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置．3．请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符．4．作答选择题，必须用2B铅笔将答题卡上对应选项的方框涂满、涂黑；如需改动，请用橡皮擦干净后，再选涂其他答案．作答非选择题，必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答，在其他位置作答一律无效．5．如需作图，须用2B铅笔绘、写清楚，线条、符号等须加黑、加粗．第一部分（共20小题，每小题1.5分，满分30分）1．Peterishelpingsettablesinthehall,whereJohn’sbirthdayparty________.A．isholdingB．hasheldC．isheldD．willbeheld2．—Mycomputerisoutoffunctionagain.—Youneedtogotothecustomerservicecenterandhaveit________.A．torepairB．repairC．repairingD．repaired3．Encourageyourchildrentotrynewthings,buttrynotto_________________themtoohard.A．draw B．strikeC．rush D．push4．Thegovernmentofficialsmettheworkersandengineersworkingonthestadium,most____weremigrantworkers．A．ofwhich B．ofwho C．ofwhom D．ofthem5．--Sorryforhavingkeptyouwaiting.Butforthetrafficjam，I________________20minutesearlier—Nevermind，Ihaven'tbeenwaitingthatlong.A．arrived B．wouldhavearrivedC．wouldarrive D．hadarrived6．________theychooseChinesecompanyisthatChinahasthemostadvancedtechnologyofhighspeedrailwayintheworld.A．When B．ThatC．Where D．Why7．Insteadofmakingchoicesfortheirchildren,liberalparentsusuallysay,“Gowhereyou________.”A．will B．shouldC．can D．must8．—Onlythosewhohavealotincommoncangetalongwell.—_________.Oppositessometimesdoattract.A．Ihopenot B．IthinksoC．Iappreciatethat D．Ibegtodiffer9．_____withsomuchtrouble,wefailedtocompletethetaskontimeA．Toface B．Faced C．Face D．facing10．Accordingtothereport,peopleinthe________areasarerebuildingtheirhomesandmanyroads________totheareahavebeenrepaired.A．flooded;lead B．flooding;leading C．flooding;tolead D．flooded;leading11．Itisreportedthehousingpricesinsomebigcitiesfallindifferentdegrees.A．whichB．whatC．thatD．where12．Aseconomyisdeclining,jobs________totheyoung,continuetobescarce.A．availableB．convenientC．comfortableD．valuable13．"Wecannotaffordlimitedprogress.Weneedrapidprogress,"BansaidattheThirdWorldClimateConferenceinGeneva,bytheWorldMeteorologicalOrganization(WMO).A．organized B．beingorganized C．organizing D．wasorganized14．Thewidespreadofsuperhybridricearoundtheworld______thelivesofmillionsandmillionsofpeoplesufferingfromhungertoagreatlevel.A．hasimproved B．isimproving C．improved D．hasbeenimproving15．Notuntilhelefthishome__________toknowhowimportantthefamilywasforhim．A．didhebeginB．hadhebegunC．hebeganD．hehadbegun16．Theyhaveleadingexpertsinthisfield,andthat's____they'vemadeimportantprogress.A．whereB．whyC．whetherD．who17．WhenIwastwenty,Ihadto________beforegraduationandworkinaclothesshoptohelpsupportmyfamily.A．comeout B．stayoutC．leaveout D．dropout18．Itisthroughyearsofresearch________scientistshavediscoveredtherelationshipbetweensocialmediaaddictionanddepression.A．since B．before C．that D．when19．Whileintheuniversity,wewereofferedanumberofafter-schoolactivitiestooursocialskills.A．createB．growC．settleD．develop20．goesupmustcomedown,andgasolinepricesarecomingdownfastinsomepartsofAmerica.A．WhereB．WhatC．WhichD．That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）FollowtheFashion---aNewAgeoftheMacBookProThenewflagshiplaptopscalledtheMacBookProfromApple,availablein13-and15-inchscreensizes,arethinner(0.6inches),lighter(3or4pounds),andfasterthaneverbefore.Thespeakersaremorepowerfulandsoundgreat.Batterylifeis8to10hours,somewhatlessthanthatofpreviousmodels.Besides,they’renotbecominggraduallynarrowerliketheMacBookAir,butthey’rethinnerthantheAirwasatitsthickestpart.That’sright,“was”.TheexistingMacBookAirwillremainavailableforawhile,buttherewon’tbeanymoremodel.ListedinthefollowingaresomeotherappealingfeaturesofthenewMacBookPromodels.ScreenTheMacBookProscreenisamasterpiece.It’ssobright;itcouldlightuparunway.It’saRetinascreen,whichissomethingMacBookAirfanshavewaitedforforever.Thecolorisveryimpressive.Youwilllovesthisscreen.Trackpad（轨迹板）Thetrackpadishuge,twiceaslargeasthepreviousoffering.Itmakesadifferencewhen,forexample,you’repaintinginPhotoshop.KeyboardAllofthenewMacBookPromodelsshareinusingasecond-generationbutterflymechanismkeyboardlikewhat’sfoundonthe12-inchMacBook.Thekeysareveryflatanddon’ttravelmuchatall,whichcanactuallyenableyoutoflywhentyping.1、HowistheMacBookProdifferentfromtheMacBookAir?A．Ithasanarrowershape.B．Ithasamoreadvancedscreen.C．Ithasamorepowerfulbattery.D．Ithasmorecoloroptions.2、WhatcanbelearnedaboutthekeyboardoftheMacBookPro?A．Itsdesignisinspiredbybutterflies.B．ItistailoredfortheMacBookPro.C．Itallowsofanicetypingfeel.D．Itskeysarelargerthantheprevious.3、Whatisthepurposeofthepassage?A．TocomparetheMacBookProwiththeMacBookAir.B．ToexplainwhytheMacBookProisunique.C．TopersuadetheyoungtobuytheMacBookPro.D．TointroducethenewproductfromApple.23．（8分）Idema,aDutchSinologist（汉学家）,hasservedasthedirectoroftheChineseLanguagesandCulturesDepartmentatLeidenUniversityoftheNetherlandsandwasalsodirectorofHarvard'sFairbankCenterforEastAsianResearch.HehasstudiedancientChineseplays,novelsandliterature,andhasauthoredortranslatedanumberofinfluentialbookspublishedinEnglishandotherlanguages.The70-year-oldDutchSinologistrecalledhishalf-century-longromancewithChinesecultureduringarecentvisittoBeijing.Asachild,thevividdescriptionsofChinainNobelandPulitzerPrize-winnerPearlS.Buck’sbookssparkedIdema'sinterestinthecountry.HelaterreadclassicChineseliteratureandspentwholedayspouringthroughworksattheNationalLibraryofChina.WhilemanyotherexpertsonChinafocusedonthecountry'seconomictransformation,IdemacontinuedtostudytraditionalChineseliterature."Therewerescholarsstudyinglaw,religionandsociety,butnottraditionalChineseliterature,whichwasmypersonalinterest,"Idemaexplains.Findingreferencebooksforhisresearch,especiallyregionalpublications,usedtobeahugechallenge,andIdemausedtospendalotoftimecollectingbooksandothermaterialsduringvisitstoChina.NowitismuchmoreconvenientwiththeInternet.Idemausuallychoosesless-knownsubjectsforhisresearchandtriestogetfirsthandmaterials.Inrecentyears,hehasdevotedhimselftotranslatingChinesefolktalesandwritingaboutChinesefolksocietyandfolkculture."TraditionalChinesecultureisapassion.Ihavebeenstudyingitfor50yearsandwillcontinuetodoso,"saystheretiredprofessor.1、Whatdoestheunderlinedword"sparked"inParagraph2mean?A．Increased.B．Broke.C．Performed.D．Aroused.2、IdemaconcentratedontraditionalChineseliteraturebecause.A．hewantedtoshowhewasdifferentfromothersB．hewasinterestedintraditionalChineseliteratureC．traditionalChineseliteratureiseasiertostudythanotherfieldsD．hecouldbenefittedalotfromthetraditionalChineseliterature3、Whatmaybethebesttitleforthetext?A．APassionforChineseCultureB．TheLifeofIdemaC．Idema'sVisittoChinaD．ThePersonalHobby24．（8分）Oneofmyneighborsusedtohaveabeautifultreeinherfrontyard.Herdadhadplanteditforherwhenitwasnothingmorethanatwig(树枝)andseveralyearslateritstartedtoshoottowardstheskywithamazingspeed.Soonitblessedherwithcoolingshadeinthesummerandglorious,goldenleavesinthefall.Whenthetwo-daysnowstormstruckourtown,heavysnowfellonthetree’sbranchesthatwerestillfullofleaves.Theweightsplitthatlovelytreedownthemiddle.Itwassosadseeinghalfofitlayingonthegroundafterthestorm.WhenItalkedtomyneighborlater,shesaidthatthedamagehadbeentoomuchandthattheentiretreewouldhavetobecutdown.Thankfullyshehadsavedafewsaplings(树苗)fromitthatshehopedtoreplantinthefuture.Still,itwasashocktodrivebyherhousetheotherdayandseenothingbutastumpinherfrontyard.Imissedthattree.Imisseditsbeauty,itsleavesshinningintheafternoonsun.Imissedseeingitslimbsreachtowardstheheavens.Ithoughtthatthestumpwouldbeasadreminderofitslossforalongtimetocome.Mywonderfulneighbor,though,hadanotherplan.WhenIdrovebyherhometodayIsawatinybirdfeedersittingonthatstumpandacolorfulsongbirdhavingitsdinner.Itwassuchanaffirmationoflife.Itwassuchajoytosee.Icouldfeelmyheartsmile.Lifebyitsverynatureisamixedbag.Ithandsusbeautyandtragedy,loveandloss,pleasureandpain.Whatwedowithit,however,isuptous.Wecanletitsplitusintwo,orwecanuseevenitshardesttimestomakeoursoulsstrongerandourheartsmoreloving.Wecanspenditcomplainingorwecanuseittohelpothers.1、Weknowfromthefirstparagraphthat________.A．thetreegrewveryslowlyB．thetreewassostrongthatitcouldbearanyweightC．thetreeshoweditsbeautyandbenefitsD．theauthor’sneighborwasgoodatplantingtrees2、Theauthor’sneighborleftastumpinherfrontyardtouseitas________.A．agoodreminder B．aplacetofeedbirdsC．aseatafterdinner D．abeautifulsculpture3、Whatdoestheauthormainlywanttoshowinthepassage?A．Lifeisdeterminedbyourattitudetowardsit.B．Lifeconsistsofpainandsuffering.C．Lifehasbeautyandtragedy.D．Lifeshouldbepleasantratherthanpainful.25．（10分）ChristmaseventsinLosAngelesYouwon'tfindsnow-coveredtreesandbelow-zerotemperaturesinLA,buttherearestillplentyofChristmaseventsandholidayactivitiestogetyouinvolved.BeverlyHillsHolidayLightingCeremonyRodeoDrive,BeverlyHillsSundayDecember17,2017DuringChristmas,youcanseethetwinklinglightsanywherealongRodeoDrivebetweenSantaMonicaandWilshireBoulevards.Onweekendsthroughouttheholidayseason,youcanswingbythePaleyCentertomeetSantaorboardatrolleybuswithMrs.Claus.HollywoodChristmasParadeVariouslocationsinLASundayDecember17,2017Nowinits84thyear,theannualHollywoodChristmasParadewillfeaturefloats,balloons,bandsandHollywoodstarsastheyrideinaU-shapedroutethatbeginsatHollywoodandOrangeandendsupatSunsetandOrange.Reservedseatscanbepurchased,butfreesideseatingisalsoavailable.CulverCityDowntownHolidayTreeLightingCelebrationMusicCenter,DowntownMondayDecember18,2017DowntownCulverCitylightsuptheholidayseasonatTownSquare.Thecityopenstheswitchonitsrespectablegreentree:a22-footRockyMountainpinewithover7,500LEDlights.Stickaroundforhotcocoaandcookies,alongwithaspecialvisitfromSanta.Parkfreefortwohoursinthenearbyparkingspaces.AngelCityBandHolidayConcertandSing-AlongPomonaFridayDecember22,2017—SundayDecember24,2017HeadovertotheMethodistChurchtolistenandsingalongtoChristmasclassics.The160-memberAngelCityBand,famousforitsclassical,pop,worldandcontemporary,isputtingon“BringontheJoy”itsannualholidayconcert.Sojoininontheholidaytradition.1、WhereshouldyougotohaveabusridewithMrs.Claus?A．MethodistChurch,Pomona.B．TownSquare,CulverCity.C．RodeoDrive,BeverlyHills.D．HollywoodandOrange.2、WhatdoyouknowabouttheChristmastreeatTownSquare?A．It'sthetallestChristmastreeintheUS.B．It'scollectedfromRockyMountain.C．Itoffersfreedrinksandfoodtovisitors.D．IthasthemostChristmaslightsinthecity.3、IfyouareatravelerinLosAngeles,youcan.A．meetSantaandMrs.ClausthroughouttheweekB．reserveseatstoviewtheHollywoodChristmasparadeC．switchonthegreentreebyyourselfD．singanddancealongwiththeband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）WhenIstoppedbytogetanewspaper,atall,sinceremancameovertomeaskingforhelpwithdirections.WithaprintoutofGooglemaps,hewaslookingfora1onthemainstreet,butjustcouldn'tfindit.Aftercheckingouthiswrittendirections,Imappeditonmyphoneandshowedhim2whereheneededtogo.He,in3,mentionedthathehadtriedgoingthere,buttherewasnosuchstreetnumberandhejustcouldn'tlocatehishotel.I4itagainforhim.Hethankedmewithabigsmile,shookmyhand,and5Igotintomycarandhegotintohis,andwe6ways.AsIdrovetothenextgrocerystoreandwentin,Isensed7wrongaboutthedirections－soIGoogledtheaddressagainand8thathewaslookingfortherightaddressbutinacityhalfanhouraway!9ithadbeenseveralminutes,andinthepeakrushhourtime,thechancesoffindinghimamileaway－wherehewassurelystilllookingaround－were10ButIthoughtI'dgiveita（an）11andsetoffinthatdirection.I'd12noticedwhathiscarlookedlike,andwasjustabouttogiveup.IparkedmycarasIconsideredwhatelseIcoulddo－13,likemagic,hedroverightbyandpulledoverintoanearbyparkingspot,still14aboutwherethehotelwas.WhenI15nexttohim,hecouldn'tbelieveit:"16didyoufindme?!"heasked."I'mnotsure,butI17thatyouareinthewrongcity!"Ishowedhimtherightdirections,andaftermore18andahandshake,we19'Likelythatwe'llnevermeetagain,andthatmakesitmuchmore201、A．museum B．parkingspot C．hotel D．grocerystore2、A．constantly B．exactly C．absolutely D．completely3、A．relief B．panic C．delight D．puzzlement4、A．confirmed B．evaluated C．analyzed D．adjusted5、A．tookoff B．tookup C．tookdown D．tookover6、A．lost B．parted C．fought D．pushed7、A．nothing B．anything C．something D．everything8、A．realized B．considered C．determined D．acknowledged9、A．Hopefully B．Unbelievably C．Consequently D．Unfortunately10、A．big B．vital C．slim D．Obvious11、A．beginning B．end C．change D．try12、A．hardly B．merely C．regularly D．occasionally13、A．while B．before C．when D．since14、A．ataloss B．atarisk C．atease D．atpeace15、A．putout B．putup C．pulleddown D．pulledin16、A．Where B．Why C．When D．How17、A．triedout B．figuredout C．burstout D．carriedout18、A．luck B．smiles C．greetings D．praise19、A．lefttogether B．returnedhome C．wavedgoodbye D．rushedaway20、A．useful B．sweet C．common D．wrong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）Directions:Afterreadingthepassagebelow,fillintheblankstomakethepassagecoherentandgrammaticallycorrect.Fortheblankswithagivenword,fillineachblankwiththeproperformofthegivenword;fortheotherblanks,useonewordthatbetfitseachblank.Procrastination-aVirtueWhenItComestoCreativity?PsychologistAdamGrant,fromtheUniversityofPennsylvaniainPhiladelphia,arguesthatpeoplewho“putoff”solvingataskforalittlewhile-thusengaginginmoderateprocrastination--areoftenabletocomeupwith1．(original)ideasabouthowtosolvethattaskthanpeoplewhogetstartedontheirworkrightaway.GrantmakesthisargumentinthebookOriginals:HowNon-conformistsChangetheWorldandreiteratesitinapopularTEDtalk2．hesaysthat“procrastinationisavicewhenitcomestoproductivity,butitcanbeavirtuewhenitcomestocreativity.”Thispointofviewseems3．(find)somesupportinexistingstudiesthatindicateacorrelationbetweencreativityand“puttingthingsoff.”Grantexplainsthatthelinkbetweenmoderateprocrastinationandoriginalitylikely4．(exist)becausewhenweactivelyputoffataskforawhile,ourpreoccupationwiththetaskitselfdoesnotdisappear.Instead,theunfinishedwork“runsinthebackground”ofourbrains,5．(buy)ustimetofindinnovativesolutions.Onestudy6．(publish)inPersonalityandIndividualDifferencesin2017alsofoundalinkbetweencreativeideation(comingupwithcreativeideas)andactiveprocrastination.Itsuggestedthatamong853undergraduatesatChineseuniversities,“activeprocrastinators”maybemorepronetocreativity.Boredom7．havesomethingtodowiththisboostincreativethinking.OlderresearchfromtheUniversityofFloridainGainesvillesuggeststhatpeoplewhoprocrastinatemaybemorepronetoboredomthantheirpeers.Andwhileboredomitselfisaconceptthatsometimeshasnegativeconnotations,studies8．(show)thatallowingourselvestofeelboredforawhilecanboostourcreativeabilities.Theresearchersexplainthatthismaybebecausewhenwearebored,weallowourmindstowander,thus“training”ourimaginations.Finally,9．puttingoffataskforeveroutoffearandself-doubtmaybeparalyzingandunhelpful,alittlebitof“directed”procrastinationwilllikelynotbeharmfulandmayallowustoassessthetaskathandmoreimaginatively.Andforsomeofus,thatpressureoflookingadeadlinestraightintheeyecanbejust10．weneedtokeepusonourtoes.AsCalvin,oneofthemaincharactersinthecomicstripsCalvinandHobbes,oncesaid:“Youcan’tjustturnoncreativitylikeafaucet.Youhavetobeintherightmood,”andthatmoodis“last-minutepanic.”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作文。文中共有10处语言错误，每句中最多有两处。每处错误仅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（∧），并在其下面写出该加的词。删除：把多余的词用斜线（\）划掉。修改：在错的词下画一横线，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。DearTom,I’mmorethanhappierthatyou’reinterestedinChineseculture、NowletmetellyousomethingaboutaDragonBoatFestival、It’satraditionalChinesefestivalfallinginthe5thdayofthe5thmonthoftheChineselunarcalendar、It’swidelybelievedthatthefestivalheldinmemoryofthegreatpoetQuYuan,wholivedinancienttimes、Disappointedwiththegovernment,hedrownedhimintheMiluoRiver、Thefestivaliscelebratedbyboatracing,withtheboatsbuildingintheshapeofdragons、Competingteamsrowtheirboatsforwardtothedrumbeat,racetoreachthefinishingendfirst、Wealsohavethecustomofeatingzongzi,wrappedwithbambooleaf、It’sverypopularlyamongChinesepeople、IfyouwillwanttoknowaboutotherChinesetraditionalfestivals,justwritetome、Yours,LiHua第二节书面表达（满分25分）29．（25分）假如你是李华,你的美国朋友Tom在学习汉语,他听说很多外国人在中国学习相声,对此非常感兴趣,来信询问有关中国相声的情况,请你给他写信回复。内容包括:1．介绍相声;2．相声与语言学习的关系。

注意:1．词数100左右;2．可以适当增加细节,以使行文连贯。3．参考词汇:相声comictalkDearTom,_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Yours,LiHua

2023学年模拟测试卷参考答案（含详细解析）第一部分（共20小题，每小题1.5分，满分30分）1、D2、D3、D4、C5、B6、D7、A8、D9、B10、D11、C12、A13、A14、A15、A16、B17、D18、C19、D20、B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.Thismethodleads,sheadds,toalonglistofsupposedly“safe”chemicals.Sheandherteamsaythatapproachneedstochange.“Wedefinitelyneedcertainresearch…tofindoutwhatmixturesofchemicalswouldbemoreharmfulthanothers;whatgroupsofchemicals,whentogether,wouldproducemoreharmfuleffects.Andatthemoment,thatisnotknown.”Anestimatedoneinfivecancershasbeenlinkedtochemicalexposure.Itmayturnoutthatthe