上海理工大附中2025屆高考全國統(tǒng)考預(yù)測密卷英語試卷含解析

上海理工大附中2025屆高考全國統(tǒng)考預(yù)測密卷英語試卷注意事項1．考生要認(rèn)真填寫考場號和座位序號。2．試題所有答案必須填涂或書寫在答題卡上，在試卷上作答無效。第一部分必須用2B鉛筆作答；第二部分必須用黑色字跡的簽字筆作答。3．考試結(jié)束后，考生須將試卷和答題卡放在桌面上，待監(jiān)考員收回。第一部分（共20小題，每小題1.5分，滿分30分）1．________twohoursdailyhasmadeconsiderabledifferencetomyphysicalcondition.A．TowalkB．WalkingC．WalkedD．Havingwalked2．Comehere,Mary.Ifyoustandatthisangle,you______justseethesunset.A．must B．needC．can D．should3．—Haveyouheardofyesterday'sgasexplosion?—Yes.Onlytwoofthe35minersatthescene________tohavemadeitoutsafely.A．havethoughtB．a(chǎn)rethoughtC．hadthoughtD．werethought4．IfIcanhelp,Idon’tlikeworkinglateintothenight.A．so B．that C．them D．it5．Whilewewerelisteningtothespeechattentively,avoice_____toannouncetheresultoftheelection.A．brokein B．brokeup C．brokeoff D．brokedown6．Anotherstudyof302volunteersathospitalsinChicagofocusedonindividualdifferencesinthedegree______peopleview“volunteer”asanimportantsocialrole.A．bywhich B．towhich C．inwhich D．fromwhich7．ThebeautifulmountainvillagewespentourholidaylastyearislocatedinisnowpartofGuangxi.A．which;where B．where;what C．that;what D．when;which8．Duringthenegotiationtofollow,itcanbearguedthatsharesofforeigncompaniesareovervalued________thereturntheyoffer.A．intermsofB．inmemoryofC．infavorofD．inchargeof9．"Wecannotaffordlimitedprogress.Weneedrapidprogress,"BansaidattheThirdWorldClimateConferenceinGeneva,bytheWorldMeteorologicalOrganization(WMO).A．organized B．beingorganized C．organizing D．wasorganized10．TheladystandingovertheremaybefromtheUSA,_____Iguesshaslostherway.A．whom B．whoC．which D．where11．It’simpossibleforallthepeopletogetjobsbecause______ofthemisnotfitforthem.A．everyone B．a(chǎn)llC．notall D．none12．Wearelivinginanagemostofthingsaredoneoncellphones.A．which B．thatC．whose D．when13．_______arecord-breakingsevenGoldenGlobes,themusicalLaLaLandsurprisinglydoesnotappealtoChineseviewers.A．WinningB．WonC．HavingwonD．Towin14．______property,we’reamongtherichestpeopleinthiscity．A．Insearchof B．Inspiteof C．Inplaceof D．Intermsof15．Wehavenoideawhatairwewillbebreathinginthefutureifweanythingtostophazyweather.A．hadn’tdoneB．didn’tdoC．haven’tdoneD．don’tdo16．Theoldbank,_____appearanceisnotaprettysight,isextremelybeautifulontheinside.A．whose B．whereC．when D．which17．Wildswans’________intheareaisagoodindicationofabetterenvironment.A．exhibition B．escapeC．a(chǎn)bsence D．a(chǎn)ppearance18．Thisrestauranthasaninviting,homelikeatmosphere______manyothersareshortof.A．where B．whenC．that D．what19．Tomistheonlyoneofthestudentswhoascholarshipsincelastyear.A．haswon B．havewon C．iswinning D．wins20．Ifpeoplekeeppollutingtheocean,nocreaturetherewillsurvive______.A．a(chǎn)tallcost B．foralongwhileC．inthelongrun D．bynomeans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）Exposinglivingtissuetosubfreezingtemperaturesforlongcancausepermanentdamage.Microscopicicecrystals(結(jié)晶體)cutcellsandseizemoisture(潮氣),makingdonororgansunsuitablefortransplantation.Thus,organscanbemadecoldforonlyafewhoursaheadofaprocedure.Butasetoflastingnewantifreezecompounds(化合物)—similartothosefoundinparticularlyhardy(耐寒的)animals—couldlengthenorgans’shelflife.ScientistsattheUniversityofWarwickinEnglandwereinspiredbyproteinsinsomespeciesofArcticfish,woodfrogsandotherorganismsthatpreventbloodfromfreezing,allowingthemtoflourishinextremecold.Previousresearchhadshownthesenaturalantifreezemolecules(分子)couldpreserveratheartsat-1.3degreesCelsiusforupto24hours.Buttheseproteinsareexpensivetoextract(提取)andhighlypoisonoustosomespecies.“Foralongtimeeveryoneassumedyouhadtomakesynthetic(人造的)alternativesthatlookedexactlylikeantifreezeproteinstosolvethisproblem,”saysMatthewGibson,achemistatWarwickwhoco-authoredthenewresearch.“Butwefoundthatyoucandesignnewmoleculesthatfunctionlikeantifreezeproteinsbutdonotnecessarilylooklikethem.”Mostnaturalantifreezemoleculeshaveamixtureofregionsthateitherattractorrepelwater.Scientistsdonotknowexactlyhowthisprocesspreventsicecrystalformation,butGibsonthinksitmightthrowwatermoleculesintopush-pullchaosthatpreventsthemfromtuningintoice.Tocopythismechanism,heandhiscolleaguessynthesizedspiral-shapedmoleculesthatweremostlywater-repellent—buthadironatomsattheircentersthatmadethemhydrophilic,orwater-loving.Theresultingcompoundsweresurprisinglyeffectiveatstoppingicecrystalsfromforming.SomewerealsoharmlesstotheroundwormCaenorhabditiselegans,indicatingtheymightbesafeforotheranimals.“Thesecompoundsarereallycoolbecausetheyarenotproteins—theyareothertypesofmoleculesthatnonethelesscandoatleastpartofwhatnaturalantifreezeproteinsdo,”saysClaradoAmaral,abiologistatMountSt.JosephUniversity,whowasnotinvolvedintheresearch.Gibson’santifreezecompoundswillstillneedtobetestedinhumans,however,andmaybeonlypartofasolution.“Wedon’thavethewholepictureyet,”doAmaraladds.“It’snotjustonemagicalcompoundthathelpsfreeze-tolerantorganismssurvive.It’sawholesuiteofadaptations.1、Whatwillhappeniforgansarekeptforalongtimeintemperaturesbelowzero?A．Theywillhaveicecrystalformationinside.B．Theywillnotsufferpermanentdamage.C．Theywillhavelongershelflife.D．Theywillbefitfortransplantation.2、Whatcanwelearnaboutnaturalantifreezeproteins?A．TheylooklikeGibson’santifreezecompounds.B．Theyarecomposedofantifreezemoleculesharmlesstootherspecies.C．Theyarespiral-shapedandhaveironatomsattheircenters.D．Theycanbefoundinorganismslivinginfreezingcoldweather.3、Howareantifreezemoleculespreventedfromicecrystals?A．Bycreatingcompoundsbothwater-repellentandwater-loving.B．Byextractingtheproteinsfromsomehardyanimals.C．Bymakingsyntheticalternativeslikeantifreezeproteins.D．Bycopyingspiral-shapedmoleculesmostlywater-resistant.4、What’sthemainideaofthepassage?A．Push-pullchaosmightpreventwatermoleculesfromturningintoice.B．Thefinalsolutiontopreservingdonororganshasbeenfoundrecently.C．ChemicalsinspiredbyArcticanimalscouldlengthenorgans’shelflife.D．Gibson’santifreezecompoundscandowhatnaturalantifreezeproteinsdo.22．（8分）Ifonlythingswerethatsimple.Supportersoftheso-calledStoneAgedietarguethatfarmingpracticesintroducedabout10,000yearsagoareharmfultohumanhealth,andthatweshouldn'teatgrainsorfoodmadefrommilksuchasbutterandcheese.Instead,theysay,weshouldonlyeatplentyofleanmeat(瘦肉)andfish,withfruitandrawvegetablesontheside.Theidea,alsocalledthecaveman,orhunter-gathererdiet,hasbeenaroundfordecadesandwasdiscussedatameetingoftheBritishSocietyforAllergy,EnvironmentalandNutritionalMedicine.AccordingtoLaurenCordain,anutritionistatColoradoStateUniversitywhopresentedtheideatothemeeting,thosefollowingthemeat-centeredmenu“l(fā)oseweightandgethealthybyeatingthefoodyouweredesignedtoeat”.Hesaysthereisincreasingevidencethatacavemandietcanpreventandtreatmanycommonwesterndiseases.StudiesofislandersinPapuaNewGuineawhostillliveahunter-gathererlifestyleshowtheyrarelysufferfromheartdisease.Butothernutritionistsarguethatcuttingoutwholefoodgroupssuchasgrainsisjustnotagoodidea.“Iwouldrecommendanybodytoeatleanmeatandrawvegetables,”saysToniSteeroftheMRChumannutritionresearchunitatCambridge.Butwhatyou'reaskingpeopletodoiscutoutafoodgroupwhichisgoodforyourhealth.Archaeologistssayit'snotevenclearexactlyhowmuchofthevariousfoodspeopleactuallyateduringtheStoneAge.“TherewasnooneStoneAgediet;dietsofthepastvariedgreatly,”saysJohnGowlett,anarchaeologistattheUniversityofLiverpoolwhoalsoattendedtheconference.PrehistoricpeopleinAfricaprobablyatelessmeatthanmanypeoplethink,hesays,whilethoseinthenorthern,icyareaswereforcedtoeatonlywhateveranimalstheycouldcatch.“I'mnotconvincedthatweknowwhatStoneAgemanate,”agreesAndreMillard,whoresearchesancienthealthanddietatDurhamUniversity.“Theevidencewehaveonlysuggeststhemeatcomponentofthediet.Wegetbonesfromanimalstheyhaveeatenbutwedon'tgettheremainsofanyvegetablestheyhaveeatenbecausetheyrot(腐爛)away.1、Toimproveyourhealth,Cordainsuggests______.A．losingweightfirstB．eatinglessmeatandfishC．goingontheStoneAgedietD．eatingmorefruitandvegetables2、WhatisSteer'sattitudetowardseatinggrains?A．Doubtful.B．Cautious.C．Tolerant.D．Supportive.3、InMillard'sopinion,theevidencefortheStoneAgediet______.A．showsnothingaboutthediet'svegetablecomponentB．tellsusaboutancientpeople'scookingmethodsC．hasproventobereliableandconvincingD．a(chǎn)greeswithhisresearchresults4、Whatdoesthetextmainlydiscuss?A．HowtheStoneAgeevolved.B．WhentheStoneAgedietstarted.C．WhethertheStoneAgedietishealthy.D．WhytheStoneAgetopicisgettingpopular.23．（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.24．（8分）Ayoungmanwanderedthroughthedesertforfortyuntilhereachedabeautifulcastleatthetopofamountain.Therelivedthesagethathewaslookingfor.Withconsiderablepatience,thesagelistenedattentivelytothereasonfortheboy’svisit,buttoldhimthatatthatmomenthedidnothavetimetoexplaintohimthesecretofhappiness.Hesuggestedthattheyoungmantakeawalkaroundhispalaceandcomebackintwohours’time.“However,Iwanttoaskyouafavor,”headded,bandingtheboyateaspoon,inwhichhepouredtwodropsofoil.“Whileyouwalk,carrythisspoonanddon’tlettheoilspill.”Theyoungmanbegantoclimbupanddownthepalacestaircases,alwayskeepinghiseyesfixedonthespoon.Attheendoftwohourshereturnedtothepresenceofthewiseman.“So,”askedthesage,“didyouseethePersiantapestries(掛毯)hanginginmydiningroom?DidyouseethefantasticgardenthattheMasterofGardenersspenttenyearsincreating?”Embarrassed,theyoungmanadmittedthathehadseennothing.“So,gobackandseethewondersofmyworld,”saidthewiseman.“Youcan’ttrustamanifyoudon’tknowhishouse.”Nowmoreatease,theyoungmantookthespoonandwanderedagainthroughthepalace,thistimepayingattentiontoalltheworksofartthathungfromtheceilingsandwalls.Hesawthegardens,themountainsallaroundthepalace,andthedelicacyoftheflowers.Returningtothesage,hereportedindetailwhathehadseen.“ButwherearethetwodropsofoilthatIentrustedtoyou?”askedtheSage.Lookingdownatthespoon,theyoungmanrealizedthathehadspilledtheoil.“Well,thatistheonlyadviceIhavetogiveyou,”saidthesageofsages.“Thesecretofhappinessliesinlookingatallthewondersoftheworldandneverforgettingthetwodropsofoilinthespoon.”1、Whatwastheintentionoftheyoungmantotraveltolookforthesage?A．ToappreciatethemostbeautifulsceneryalongthewayB．ToexperienceadventuresoftheoutsideworldC．TofigureoutwhetherthesagewasknowledgeableornotD．Tolearnthesecretofhappinessfromthewisestman2、Whichofthefollowingstatementsiswrong?A．ThesagelistenedtotheyoungmanwithpatienceB．Duringhissecondroundofwandering,theyoungmanappreciatedthewondersofthecastleC．TheyoungmanmadeitasthesagehadexpectedD．Theyoungmanwastooconcernedabouttheoilwhenhefirstwentaroundthecastle3、Whydidthesageasktheyoungmantogoaroundhiscastlewithaspoonoftwodropsofoil?A．BecausehewantedtofindoutwhethertheyoungmanwasperseverantinaccomplishinghisgoalsB．BecauseheintendedtolettheyoungmanknowthathappinesscameatapriceC．BecausehewantedtolettheyoungmantrusthimD．Becausehewantedtohelptheyoungmantouncoverthesecretofhappinessinanindirectway4、Whatcanwelearnfromthestory?A．Wecan’ttrustamanunlesswegetfamiliarwithhishouseB．RealhappinessconsistsinenjoyingourrightsandmeanwhilefulfillingourdutiesC．ThesearchforthesecretofhappinessdemandsourdevotionD．It’snoteasytokeepbalancebetweenenjoymentandcommitment25．（10分）Innoparticularorder,herearesomesongsontheMusicappofmyphone:OnaSundayAfternoonbyLighterShadeofBrown—Astudentofmineintroducedthisrapsonglomeallthewaybackintheearly1990s,when1wasteachingSpanishatalocaluniversity.ThestoryinthesongtakesplacenottoofarfromwhereIliveinLosAngeles.It’sagood“driving”song,nothingcomplicatedor“deep”.SaySomethingbyAGreatBigWorld—Amorerecentsongaboutacouplelosingcontactwitheachother.Thepianopartisverylittleplayingbutbeautiful.AmericanPiebyDonMcLean—Anothersongfrommyyouthinthe80s,verypopularwithalmosteveryAmericanofmygeneration.Itretellssomeofthekeyeventsofthemiddle20thcentury,asongofhappymemoriesofthepastandwantingtoreturntothosebettertimes.TheWeightbyTheBand—Anotheroldsong,originallymadepublicin193,butoneIdidn’thearuntilIwasinhighschoolmorethan10yearslater.Idon’tunderstandthewordstothesongcompletely,butthefeelingofthesongisverycomfortingtome.UndertheBridgebyRedHotChiliPeppers—ThisLosAngelesgroupwroteasongthat1usedtolistentowhenIfirstmovedtoLAmorethan25yearsago.Ididn’tknowanyoneherewhenIfirstarrived.WhenIgotbored,Iusedtodriveupanddownthemajorstreetsthatcrossthecityfromeasttowest,listeningtothissongaboutthe“cityofangel”beingas“l(fā)onelyasIam.(Dontworry!Ihaveplentyoffriendsnow.)1、Whatdoestheunderlinedword“deep”probablymean?A．withskill B．withcomfortC．withanormalmeaning D．withasignificantmeaning2、WhendidtheauthorprobablyheartheWeightbyTheBand?A．In193. B．In1970.C．inthe1980s. D．inthe1990s.3、WhentheauthorfirstmovedtoLA,thefirstsongheheardwas.A．SaySomething B．AmericanPieC．TheWeight D．UndertheBridge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）Afterhavingachild,Ifoundmyregularexerciseinterrupted.Iwasnotonlybusy:Ialsolackedthemotivation.Sologymsessionsorsomequick1followingtheDVDwhilethebabysleepsdidn’t2meatall.SoIdecidedtosignupforahiking3inPeru,hopingthatitwouldgetme4again.LookingovermytravelarrangementsbeforeIleft.I5phrasessuchas“3-hourhike6primitiveforests”and“slidingwitharopedownwaterfalls”,andIstartedtofeelalittle7.However,aswemadeourwaythroughtheforestsandwere8withamazingviewsof9waterfalls,thisteamofstrangers10metogoon.Beingphysicallyactivewithagroupmotivatedmetoreachthe11orthevalleybelow-ratherthansimplylyingdownontheforestfloorandgivingup,12ImighthavedoneifIwerealone.13confirmmyexperience:Groupexercisecanreallystartanewattitudetowardfitness.“Peoplegetabetter14inagroupthantheydoontheirown,”saidAllisonKimmel,agroup15instructor.That’sbecauseotherpeople16bothsupportandcompetition.“Humansare17animalsandthesharedexperienceoffacingachallenge18iscompelling(不可抗拒的),”saidDavidEzell,theCEOoffitnessproviderDarienWellness.Withthe19ofagroup,I'mslowlygettingbackintoa20lifestyle.1、A．summary B．a(chǎn)ddition C．exercise D．1ecture2、A．contributeto B．a(chǎn)ppealto C．caterto D．objectto3、A．trip B．voyage C．a(chǎn)ward D．speech4、A．a(chǎn)cting B．flying C．studying D．moving5、A．examined B．scanned C．copied D．deleted6、A．a(chǎn)cross B．over C．through D．beyond7、A．convinced B．disappointed C．delighted D．worried8、A．rewarded B．crowded C．covered D．equipped9、A．a(chǎn)wful B．a(chǎn)wesome C．a(chǎn)ccessible D．still10、A．begged B．forced C．permitted D．inspired11、A．summit B．foot C．destination D．waterfall12、A．that B．which C．where D．when13、A．Victims B．Tourists C．Strangers D．Experts14、A．position B．workout C．income D．diet15、A．business B．career C．flight D．fitness16、A．offer B．consume C．receive D．ignore17、A．natural B．traditional C．practical D．social18、A．a(chǎn)lone B．a(chǎn)like C．together D．close19、A．popularity B．development C．increase D．support20、A．wealthier B．healthier C．higher D．richer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(dāng)?shù)膯卧~或括號內(nèi)單詞的正確形式。27．（15分）MoreChineseseniorcitizens1．(become)activeusersofWeChatinrecentyears,accordingtoarecentstudy.Thestudyaimstolearnaboutthedigitallifeofpeopleabovetheageof55.Thereportshowedthatelderlyusersspendaround1.37hours2．WeChateverydayandhave104WeChatfriendsonaverage.Thereportsaid50.3percentofelderlyuserslearnedhowtouseWeChatfromtheirchildrenorgrandchildren,3．(suggest)thatfamilymembersshouldbemore4．(patience)whentheyintroducenewtechnologytoelderlypeople.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）文中共有10處錯誤，每句中最多有兩處。錯誤涉及一個單詞的增加、刪除或修改。增加：在缺詞處加一個漏字符號（^），并在其下面寫出該加的詞。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。OneafternooninFebruary,myclassmatesandIwasonthewaytothecinema、Suddenlyanoldwomanfallsdownheavilyduetothegroundcoveringwiththickice、Seeingwhathadhappened、Wedialed120withoutasecondthought、Onsuchcoldweather,westayedwithheruntiltheambulancecametoscene、Andthentheyleftforthecinema、Althoughwewerelaterforthefilm,weallthoughtitwasworthwhile、Afterall,helppeopleinneedisagoodwaytoobtainjoyandhappy、Nowweallrememberthedaywhichwespentittogether、第二節(jié)書面表達（滿分25分）29．（25分）假定你是李華，你的英國網(wǎng)友Johnson熱愛科學(xué)，他在來信中提到想要了解你所設(shè)想的發(fā)明物：單人噴氣飛行器（jetpack）。就此請你用英語給他回封信，內(nèi)容包括：1.介紹該發(fā)明物(外觀、用途等)；2.闡述想要發(fā)明該物體的原因。注意：1.詞數(shù)100左右；2.可以適當(dāng)增加細(xì)節(jié)，以使行文連貫。______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

參考答案第一部分（共20小題，每小題1.5分，滿分30分）1、B2、C3、B4、D5、A6、B7、B8、A9、A10、B11、B12、D13、C14、D15、D16、A17、D18、C19、A20、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、A2、D3、A4、C22、1、C2、D3、A4、C23、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.Shesaysthecurrentwaytoidentifywhetherchemicalscausecanceristotestthemoneatatime.Thisme