2025届河南省新乡一中等四校重点中学高考英语押题试卷含答案

2025届河南省新乡一中等四校重点中学高考英语押题试卷含答案注意事项:1．答题前，考生先将自己的姓名、准考证号码填写清楚，将条形码准确粘贴在条形码区域内。2．答题时请按要求用笔。3．请按照题号顺序在答题卡各题目的答题区域内作答，超出答题区域书写的答案无效；在草稿纸、试卷上答题无效。4．作图可先使用铅笔画出，确定后必须用黑色字迹的签字笔描黑。5．保持卡面清洁，不要折暴、不要弄破、弄皱，不准使用涂改液、修正带、刮纸刀。第一部分（共20小题，每小题1.5分，满分30分）1．—I’vegotsomethingweighingonmymind.Couldyougivemesomeadvice?—______.TellmeallaboutitandI’lldowhatIcan.A．Don’tmentionit B．NowonderC．Mypleasure D．Noproblem2．It’s_______forpeopletoblametrafficjams,thecostofgasandthegreatspeedofmodernlife.A．reasonable B．availableC．accurate D．cautious3．Ifhe____hard,hewouldhavepassedtheexam.A．weretoworkB．hadworkedC．shouldworkD．wastowork4．—________yourpurchasesintime,makesuretheexpresscompanyknowsyouraddressexactly.A．Toreceive B．ReceivedC．Receiving D．Havingreceived5．Thesciencecompetitionisagoodopportunitytoshowstudents_____creativitycanaddnewvaluetotheirschoollife.A．where B．whether C．how D．when6．Helikedthelovelydogsomuchthathe________hisbookandplayedwithitimmediately.A．gaveoff B．setasideC．tookover D．turneddown7．___________andtheywillfinishoffthechallengingjob.A．Inaweek B．Aweeklater C．Afteraweek D．Anotherweek8．In2012,SunYangbecamethefirstChineseman_____anOlympicgoldmedalinswimming.A．winning B．towinC．havingwon D．beingwon9．．WhatIlikeaboutHarvardisthere’stheoldclassicallook—thereareparksandtraditionalbuildings.A．why B．where C．that D．how10．AsoneofthemostpopularartistsintheUS,notonly_______withherhitsongs,buthasinspiredwomenwithherdevotiontocharity.A．hasBeyonceinfluencedpopculture B．influencedpopculturehasBeyonceC．Beyoncehasinfluencedpopculture D．influencedpopcultureBeyoncehas11．－Theonlineshopkeeperhasmadeanapologyforhisrudebehavior.－OK.Ifyou’restillnotsatisfied,youcan_______compensation.A．claim B．affordC．sacrifice D．dismiss12．WorldAIDSDayisalsoimportantinremindingusthatHIVhasnotgoneaway,andtherearemanythingsstilltobedone.A．which B．whatC．that D．/13．--Ifeelnervouswhentakinganexam.--andyoucandoitwell.A．TakeitweasyB．TakeyourtimeC．GoodluckD．It’suptoyou14．_____areceptiontocelebratethe68thanniversaryofthefoundingofthePeople'sRepublicofChina，vicepremierLiuattachedimportancetomutuallybeneficialcooperationbetweenUSAandChina．A．Addressing B．AddressedC．Beingaddressed D．Toaddress15．---Whydidn’tyouhelpthelittleboy?---Oh,hehadstruggledtohisfeet______Icouldrunoverandofferedanyhelp.A．before B．afterC．when D．since16．IhadbeenbetrayedbythosewhoItrustedseveraltimes,______inasuspiciousattitudetowardseverythingandeveryone.A．resulted B．havingresulted C．resulting D．toresult17．_______moreenergytomystudyinsteadofbeingcrazyaboutcomputergames,Iwouldbesittinginacomfortableofficenow.A．IfIdevoted B．HadIdevotedC．WouldIbedevoted D．ShouldIbedevoted18．Theshockingnewsmademerealize________terribleproblemswewouldface.A．what B．howC．that D．why19．Whenonholidays,therailwaysputontrainstomakepeople’stravelmoreconvenient.A．regularB．specialC．particularD．unusual20．—Heiseagertotrysomethinghehasnevertriedbefore.—Oh,Isee.That’s_______he’sdifferentfromothers.A．whenB．whereC．howD．what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）Corals(珊瑚)areoftendescribedasunderseaforests,buttheyaredecliningfarmorequicklythantheAmazon.Thecoralreefs(礁)arelikelytobeamongthefirstecosystemstobewipedoutbyclimatechange.Atemperatureriseofjust1to2℃canleadtothedeathofthealgae(海藻)uponwhichcoralsdepend,drainingthemofcolorandmakingthestructuremorefragile.Thesebleaching(脱色)eventscanbetemporaryifwaterscool,butthemorefrequenttheyareandthelongertheylast,thegreatertheriskofdamageis.Butthat’sexactlywhatishappening.Bleachingwasfirstobservedin1983.Itwasseenonagloballevelin1998,then2010,andthenfrom2015to2017.Mostavailablescientificevidencetellsusthatunlesswedosomethingtolimitwarmingto1.5℃,wewilllose99%oftheworld’scoralreefsincomingdecades.Butthereareotherthreatsbeyondwarming.OffthePhilippineislandofPalawan,itsoldreefshavebeenbadlydamagedbydirtywaterfromthetouristholidaycenter,pollutionfromboatsandoverfishing.Theareaoughttobeashelterbecauseit’soneoftheoceanregionsmostbearabletoclimatechange.“Evenhere,wearelosingourcorals,”saidDavidObura,chairoftheGlobalSpecialistGroupintheInternationalUnionfortheConservationofNature.“Weneedtoreducestressfromoverfishing,coastaldevelopment,pollutionandtourism.”“I’magenerationofscientistswatchingthemdisappear.It’sverydepressing,”Oburasaid.“Above1.5℃,inabout50years,theywillbeatreasureofhistoricmoviesandpictures,butverylittletoseeinreallife.Childrenborntodaymaybethelastgenerationtoseecoralreefsinalltheirglory.”1、Howdoestherisingtemperatureaffectcorals?A．Bydamagingthealgae.B．Bydarkeningtheircolor.C．BycuttingtheirfoodresourcesD．Bychangingtheirstructurestemporarily.2、Whathappenedafter2015accordingtothetext?A．Bleachingfirstbecameaglobalissue.B．Theocean’stemperaturewentupsteadily.C．Welost99%oftheworld’scoralreefs.D．World-widecoralbleachinglastedlonger.3、WhatfactorthatthreatenscoralsisstressedinParagraph3?A．Illegalfishing. B．Climatechange.C．Oceanpollution. D．Globalwarming.4、Whatcanbeasuitabletitleforthetext?A．Philippine’scoralreefsareunderthreat.B．Experts’greatconcernonglobalwarming.C．RecordourunderseaforestsbeforeitistoolateD．Thenextgenerationmayneverseethebeautyofcoralreefs22．（8分）SupposeyouworkinabigfirmandfindEnglishveryimportantforyourjobbecauseyouoftendealwithforeignbusinessmen.NowyouarelookingforaplacewhereyoucanimproveyourEnglish,especiallyyourspokenEnglish.HerearesomeadvertisementsaboutEnglishlanguagetrainingfromnewspaper.Youmayfindtheinformationyouneed.GlobalEnglishCenter﹡GeneralEnglishinallfourskills:listening,speaking,reading,andwriting.﹡3-month(700yuan),6-month(1,10yuan)andone-year(2,000yuan)courses.﹡Choicesofmorningoreveningclasses,3hoursperday,Mon－Fri.﹡ExperiencedcollegeEnglishteachers.﹡Closetocitycenterandbusstops.Tel:67705272Add:105AhongshanRoad,100082ModernLanguageSchool﹡SpecialcoursesinEnglishforbusiness,travel,banking,hotelmanagementandofficeskills.﹡Smallclasses(12-16students)onSat.&Sun.from2:00－5:00p.m.﹡NativeEnglishteachersfromCanadaandtheUSA．﹡Languagelabandcomputerssupplied.﹡3-monthcourse:1,050yuan;6-monthcourse:1,850yuan.Writeorphone:ModernLanguageSchool,675ParkRoad.100056Tel:67353019The2stCenturyEnglishTrainingCentre﹡Wespecializeineffectiveteachingatalllevels.﹡Weoffermorningorafternoonclass,boththreemonthsandahalfatacostof800yuan.﹡Wealsohaveasix-weekTOEFLpreparationclassduringwinterandsummerholidays.﹡Entranceexams:June.1andDec.1﹡Only15-minutewalkfromcitycentre.Call67801642formoreinformationTheInternationalHouseofEnglish﹡Three/Six-monthEnglishcoursesforstudentsofalllevelsataverylowcost:60yuanfor12hoursperweek:convenientclasshours:9:00－12:00a.m.and2:00－5:00p.m.﹡A4-montheveningprogrammespeciallyfordevelopingspeakingskills(samecostasdayclasses).﹡Freesightseeingandsocialactivities﹡VeryclosetotheCentralPark.Forfurtherinformationcall67434081、Youworkfrom9:00a.m.to4:30p.m.everyday.Whichschoolwillyouchoose?A．GlobalEnglishCenterandModernLanguageSchool.B．GlobalEnglishCenterandtheInternationalHouse.C．ModernLanguageSchoolandthe2stCentury.D．The2stCenturyandtheInternationalHouse.2、The2stCenturyisdifferentfromtheotherthreeschoolsinthat______.A．itsteachingqualityisbetter B．itisnearesttothecitycentreC．itscoursesaremoreadvanced D．itrequiresanentranceexamination3、YouwillprobablyprefertogototheInternationalHousebecauseit_________.A．offersfreesightseeingandsocialactivitiesB．hasaspecialcourseinspokenEnglishC．costslessthantheotherschoolsD．hasnativeEnglishteachers4、IfyoutaketheeveningprogrammeattheInternationalHouse,youwillpayabout_______.A．60yuan B．240yuan C．71yuan D．960yuan23．（8分）Tenminutesofgentleexercisecanimmediatelychangehowcertainpartsofthebraincommunicateandcoordinate(协调)withoneanotherandimprovememoryfunction,accordingtoanencouragingnewstudy.Thescientistsinvited36peopleofdifferentagestothelabandhadthemsitquietlyonafixedbicyclefor10minutesor,onaseparatevisit,pedalthebicycleatapacesogentlethatitbarelyraisedtheirheartrates.Italsowasshort,lastingforonly10minutes.Immediatelyaftereachsessionofthesittingorslowpedaling,thepeoplecompletedacomputerizedmemorytestduringwhichtheywouldseeabriefpictureof,forinstance,atree,followedbyavarietyofotherimagesandthenanewimageofeitherthesametreeorasimilarone.Thepeoplewouldpressbuttonstoshowwhethertheythoughteachimagewasneworthesameasanearliershot.Thetestisdifficult,sincemanyoftheimagescloselyresembleoneanother.Itrequiresrapid,skillfulscanningrecentmemoriestodecidewhetherapictureisneworknown.Next,thescientistshadeachpeoplerepeatthisprocess--ridingorsittingonthebikefor10minutesandthencompletingmemorytesting--butthetestingnowtookplaceinsideanM.R.I.machine(磁共振成像仪)thatscannedthepeople'sbrainswhiletheyrespondedtotheimages.Thentheresearcherscomparedresults.Theeffectsoftheexercisewereclear.Thepeoplewerebetteratrememberingimagesaftertheyhadriddenthebike,especiallywhentheimagesmostcloselyresembledoneanother.Inotherwords,thehardertheirmemorieshadtodotheirbest,thebettertheyperformedaftertheexercise.TheM.R.I.scansshowedthatmemorypartsofeachpeople'sbrainlitupatthesametimewithpartsofthebrainassociatedwithlearning,indicatingthatthesephysicallyseparatepartsofthebrainwerebetterconnectednowthanwhenthepeoplehadnotfirstexercised.1、Howdidtheresearchersconductthestudy?A．Byfillingupquestionnaires.B．Byinterviewingmanypeople.C．Bycomparingexperimentdata.D．Byreferringtohistoricalreports.2、Whomightbenefitmostfromthestudyresult?A．Themarketerspromotingfixedbicycles.B．Theyoungpeoplecrazyaboutbodybuilding.C．Thewhitecollarsdoinglong-termmentalwork.D．Theblue-collarsdoingheavyphysicallaborwork.3、Whichofthefollowingstatementsagreeswiththestudyresult?A．Thelightexerciseisonlygoodforyoungpeople.B．Themoretheexerciseis,thebetterthebrainworks.C．Theexercisecancoordinatedifferentpartsofthebody.D．Theexercisehasmorepositiveeffectwhenthebrainworksharder.4、Whatcanbethebesttitleforthetext?A．Eventenminutes'exercisemaybegoodforthebrainB．ThereisnoneedforhumansdoingexerciseeverydayC．Onlytenminutes'lightexercisebenefitstheyoungmostD．Exercisecanchangepeople'sbrainsandmindsinalongtime24．（8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.25．（10分）Itisquitereasonabletoblametrafficjams,thecostofgasandthegreatspeedofmodernlife,butmannersontheroadarebecominghorrible.Everybodyknowsthatthenicestmenwouldbecomefiercetigersbehindthewheel.Itisallrighttohaveatigerinacage,buttohaveoneinthedriver’sseatisanothermatteraltogether.Roadpolitenessisnotonlygoodmanners,butgoodsensetoo.Ittakesthemostcool-headeddriversgreatpatiencetogiveupthedesiretobeatbackwhenforcedtofacerudedriving.Ontheotherhand,alittlepolitenessgoesalongwaytowardsreducingthepossibilityofquarrellingandfighting.Afriendlynodorawaveofthanksinanswertoanactofpolitenesshelpstocreateanatmosphereofgoodwillandcalmsonecessaryinmoderntrafficcondition.Butsuchbehaviorsofpolitenessarebynomeansenough.Manydriversnowadaysdon’tevenseemabletorecognizepolitenesswhentheyseeit.However,misplacedpolitenesscanalsobedangerous.Typicalexamplesarethedriverwhowavesachildcrossingthestreetatawrongplaceintothepathofoncomingcarsthatmaybenotabletostopintime.Thesamegoesforencouragingoldladiestocrosstheroadwhereverandwhenevertheywantto.Italwaysamazesmethatthehighwaysarenotcoveredwiththedeadbodiesofthesegrannies(奶奶).Anexperienceddriver,whosemannersarefaultless,toldmeitwouldhelpifdriverslearnttocorrectlyjoinintrafficstreamwithoutcausingtotalblockagesthatgiverisetounpleasantfeelings.Unfortunately,moderndriverscan’tevenlearntodrive.Yearsago,expertswarnedusthatthefastincreaseofthecarownershipwoulddemandmore

give-and-take

fromallroadusers.Itishightimeforallofustotakethismessagetoheart.1、Accordingtothepassage,troubleontheroadareoftencausedby____________.A．roadconditions B．thespeedofmodernlifeC．thelargenumberofcar D．thebehaviorofthedrivers2、Inthewriter’sopinion,___________.A．driversshouldshowroadpolitenessproperlyB．stricttrafficrulesarebadlyneededC．unskillfuldriversshouldbepunishedD．driversshouldavoidtrafficjams3、Theunderlinedword“give-and-take”inthepassagemeans__________.A．politenessandimpoliteness B．willingnesstogiveintoeachother’swishesC．offeringhelptoothersasmuchaspossible D．goodmannersandbadmanners4、Whatisthebesttitleofthepassage?A．RoadPoliteness B．TrafficProblemsC．BadMannersontheRoad D．GoodDriversandBadDriver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）Asmydaughterwasridingtoschoolwithhertwofriends,atruckpulledoutinfrontofthem.Theaccident1onMarch11th,2007-fourdaysbeforeher16thbirthday.Shewas2inthebackseatand3themostinjuries.Shebrokeherface,neck,fourplacesonherbackandrightarmandhadbadbraininjury.The4didnotthinkshewasgoingtosurvive.Shewasknown5theonlyrecoveredchildthroughoutthishospital6westayedforoverthreemonths.Ithasbeenoneyear7theaccident.Mydaughterfinally8fromthislife-changingaccident.9myknowledge,ourcommunitychurchhadaBBQand10allraisedmoneytomydaughterforher11expenses.WhenIknowthatthe12wasdoingforher,youcanimaginemyshock.Sinceithasbeenoneyear,fewpeopleremembermydaughterandmanypeoplehave13callingherandvisitingher.ByhavingtheBBQ,oursmallcommunityhasshownmydaughterthattherearepeoplewho14thinkofherandcareabouther.Ihopeif15knowsofsomeonewhoisina(n)16suchasthis,theywillrememberthatthe17ofbeingaloneisvery18.Showkindnessbyvisitingor19thosewhohadalife-changingevent.Mydaughter'saccident20lessthanaminutebutchangedherlife,plusourentirefamily'slifeforever.1、A．appearedB．reachedC．happenedD．arrived2、A．ridingB．walkingC．hurryingD．moving3、A．acceptedB．sufferedC．refusedD．knocked4、A．patientsB．classmatesC．doctorsD．teachers5、A．forB．toC．asD．on6、A．thatB．whereC．whichD．when7、A．sinceB．beforeC．duringD．over8、A．cameB．becameC．recoveredD．returned9、A．UnderB．WithC．InD．Without10、A．lentB．showedC．gaveD．borrowed11、A．physicsB．medicalC．chemicalD．schooling12、A．communityB．neighborC．relationD．street13、A．forgottenB．regrettedC．stoppedD．enjoyed14、A．alreadyB．neverC．seldomD．still15、A．anyoneB．someoneC．nooneD．everyone16、A．conditionB．situationC．positionD．attitude17、A．mindB．senseC．feelingD．idea18、A．painfulB．meaningfulC．peacefulD．doubtful19、A．rescuingB．teachingC．directingD．calling20、A．continuedB．lastedC．sparedD．paused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）AsEnglishlearners,wehavethealphabetclearlyinourmind,inorder,fromaveryyoungage.YoucansaytheABCs1．rapidspeedandsomepeoplecanevensaythembackwardswithout2．(think)aboutit.Wecertainlycan'timaginethealphabetbeinginanyotherorder.buthowdidtheorderweknowtodaycometobe?There’s3．(real)notaneasyanswer.Noonewokeupanddecidedtoputthe4．(letter)inthatorder,thealphabet5．(evolve)slowlyoveralongperiodoftimetobecome6．itistoday.OuralphabetcandatebacktoancientEgypt.Thisfirstalphabet7．(improve)bythePhoeniciansaround1000BC,8．(early)thantheGreeksby200years,andwehavethemtothankforvowels(元音)FromGreece,ouralphabettraveledtoRome,andtheRomansturned9．intothe“modern”alphabet,withletterswerecognizetoday.Sowhythatorder?Whilewedon’tknowforsure.somescholarsassumedthattheordercamefrommemorycellsinourbrainsmeant10．(help)peoplerememberit-somekindofsentencewhereeachletterbecameafullword,likethetechniqueyouusedinschooltoremembertheorderoftheplanets.第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）假如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：在缺词处加一个漏词符号（∧），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：在错的词下面划一横线，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。Thephotowastakenduringthesixtyanniversaryofourschool、Theelderlymanonthepictureattendedourschool50yearsago,shortlyafteritfounded、Itwasthefirsttimehehasbeenbacktoourschoolfromhegraduatedandhewasdeeplyimpressedbyitslook、Onceayoungstudent,theelderlymannowhasgrayhairorwrinkles,whileourschoolhasanewandmoremodemlook、Afteralltheseyears,he’sstillemotionalwhentalkingaboutthathowproudheisofoncebeingastudentofourschool、Iwasgreattouchedbythescene、IknowsomedayI’llhaveasamefeelingasthislovelyman、第二节书面表达（满分25分）29．（25分）假定你是李华，暑假将至，请你用英语给你的英国笔友Jerry写一封电子邮件，告诉他你的暑假计划。邮件的内容包括以下要点：1.完成老师布置的家庭作业；2.帮助父母做家务；3.观看电视节目《跟我学》（FollowMe），练习英语口语。注意：1.词数100字左右；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。DearJerry,Thesummerholidayiscomingnear,andIamhappytotellyouaboutmyplanfortheholiday.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Yourstruly,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、A3、B4、A5、C6、B7、D8、B9、C10、A11、A12、C13、A14、A15、A16、C17、B18、A19、B20、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、1、A2、D3、C4、D22、1、B2、D3、B4、D23、1、C2、C3、D4、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(恶性的)humancells.Shesaysthecurrentwaytoidentifywhetherchemicalscausecanceristotestthemoneatatime.Thismethodleads,sheadds,toalonglistofsupposedly“safe”chemicals.Sheandherteamsaythatapproachne