山東省威海市乳山市2025屆高三第四次模擬考試英語試卷含解析

山東省威海市乳山市2025屆高三第四次模擬考試英語試卷請考生注意：1．請用2B鉛筆將選擇題答案涂填在答題紙相應(yīng)位置上，請用0．5毫米及以上黑色字跡的鋼筆或簽字筆將主觀題的答案寫在答題紙相應(yīng)的答題區(qū)內(nèi)。寫在試題卷、草稿紙上均無效。2．答題前，認(rèn)真閱讀答題紙上的《注意事項》，按規(guī)定答題。第一部分（共20小題，每小題1.5分，滿分30分）1．—Lookingbackon_____inyearsgonebyandthegoodtimethatIhadmakestodayseemrathersad.—Absolutely.Somuchhaschanged.A．howitwas B．whoitwas C．howwasit D．whowasit2．.IwasembarrassedtoadmitthatyesterdayI______aseriouserror.A．a(chǎn)cted B．committed C．performed D．completed3．Theonlyproblemwas______wekeptgettinglost!ButpeopleinTianjinareveryfriendlyandhelpful.A．why B．whetherC．that D．how4．Thestore______Iboughtmytextbooksishavingasalethisweek.A．that B．whereC．which D．why5．___thesafetyofgas,thegovernmenthascheckedthecity’sgassupplysystemthoroughly.A．ToensureB．EnsuringC．HavingensuredD．Tohaveensured6．ThepartinthefilmRio_______thetwobirdsescapedfromthecrashingplanemadesomeoftheaudiencegiveacry.A．which B．who C．where D．whom7．Heisconfident,________________inmyopinion,ismostimportantinsociety.A．how B．whichC．that D．what8．Myteacheroftensaysthatsuccessinmakingmoneyisnotalwaysagood______ofsuccessinlife.A．beliefB．elementC．criterionD．instance9．Itisbeyondawkwardwheneveryonearoundyou______________laughingatajokethatyoudonotfindfunny,especiallyifit’sajoketoldinaforeignlanguage.A．runinto B．burstsoutC．yellsout D．fallsinto10．－WhataboutinvitingTracytohosttheparty?－Goodidea!Sheisveryquickinmind.Oh,_______,hereshecomes.A．don’tpullmyleg B．a(chǎn)littlebirdtoldmeC．speakofthedevil D．it’sapieceofcake11．Somepre-schoolchildrengotoadaycarecenter,__________theylearnsimplegamesandsongs.A．then B．there C．while D．where12．Iguess________impressesmemostabouthispaintingisthecolorsheuses.A．who B．whichC．that D．what13．—________yourpurchasesintime,makesuretheexpresscompanyknowsyouraddressexactly.A．Toreceive B．ReceivedC．Receiving D．Havingreceived14．HaveyoureadthebookLifeandDeathAreWearingMeOutbyMoYan,_____thatwonhimthe2012NobelPrizeinLiterature?A．theone B．one C．those D．ones15．--Whataboutthetwoofusgoingdowntown?--___________.Ihatespendingtimehangingaround.A．Thatsuitsmefine B．WhynotC．Itdependsontheweather D．Well,that'sthelastthingIwilldo16．_______manyChineseholidaysaredirectedtowardsservicesrememberingancestors,theChingMingFestivalisbeyonddoubtthelargest.A．Unless B．SinceC．Once D．While17．—Ourteamhasjustnarrowlywonthegame.Ifeelsorelievednow.—__________!A．Cheerup B．YoubetC．Whatapity D．Welldone18．Asateacher,youhaveto_____yourmethodtosuittheneedsofslowerchildren.A．display B．testC．a(chǎn)djust D．transfer19．Amancanfailmanytimes,heisarealfailurewhenhebeginstoblamesomeoneelse.A．butB．orC．a(chǎn)ndD．so20．Themanwasina________conditionwithsevereinjuriestohislegsafterbeingattackedbyasharkinfarnorthQueensland.A．skepticalB．criticalC．practicalD．physical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）Learninghowtofacesilenceinconversationisanimportantskill,especiallywhenworkingacrosscultures.Ininternationalnegotiations,experiencednegotiator(談判者)staysilentandimpassiveonpurposebecausethatwillmakeothersfeeluncomfortableandpossiblymakecompromiseswithouthavingtodoanything.Americansespeciallycan’tstandsilence,sotheyoftenarethefirsttobreakthesilenceandsometimesmightbeatadisadvantageinnegotiations.So,what’sthebestresponse?Setyourjawandwaititout.Don’tofferacompromisejustbecausetheyarenotspeaking.Ifyouhavetosaysomething,askadirectquestion,suchas“What’syourinitialreactiontothatoffer?”O(jiān)nceasilenceisgettinginto45secondsyoucouldsay,“Let’scomebacktothatinaminuteandgoonwiththenextpartofournegotiation.”Inpresentations,silencecanbefarmoreeffectivethandramaticpassion(熱情).Beforestarting,lookattheaudienceandbesilentforamomentbecausethatsays,“I’mincontrol.IknowwhatI’mdoing.I’mconfident.”AclassicexamplewaswhenAppleco-founderSteveJobslaunchedthefirstiPhone.Heintroducedwithmanypausessothatyoudidn’tmisshiskeypoints.Becausesilencemakesusnervous,ournaturalreactionisthatwe’dbetterpayattention,there’ssomethinggoingonhere.Equally,whengivingaspeechtostaffortrainees,pausescount-especiallyiftherearenegatives.Ifyoukeeptalkingyou’respoonfeeding.Givepeopleamomentofsilencetogetbeyondtheemotionalresponseandtostartthinkingconsciouslyandprocessing.Silencecanbeaninward-focusedthoughtfulactivityoranoutwardstillnesswhereyougiveyourselfthetimetowatchandthinkandlistentotheworldaroundyou.HavingobservedtheuseofsilenceinFinlandandalsoamongtheBlackfeetNation,aNorthAmericanIndiantribeinnorthernMontanaintheUS,wecanseebenefitsfarbeyondwheelinganddealing.Silencecanbeaverypowerfulpointforunderstandingourselves,understandingothers,fordevelopingbettercommonunderstandingandmoreproductiveoutcomesandthatappliestobusiness,politics,education,law,medicine,everyareaofhumanlife.1、WhatismostlikelytobeAmericansidea?A．Speakinglessgivestheupperhand. B．Theshortertalkinggapsare,thebetter.C．Asilentmanisthebestonetolistento. D．Speakoutwhatyouhaveinyourmind.2、WhatisthepurposeoftheexampleofSteveJobs?A．ToshowthewisdomofSteveJobs.B．Toexplainsilencecanbemoreeffective.C．Tointroducehowtomakeapresentation.D．Toprovesilencecaneaseone’snervousness.3、Whatisthemeaningoftheunderlinedwords“spoonfeeding”inParagraph6?A．Supportingsomepersonwithanyselflesshelp.B．Feedingsomebodypatientlywithasmallspoon.C．Givingotherssomenewideastothinkovercarefully.D．Usingawaythatdiscouragesindependentthought.4、Whatisthemainideaofthepassage?A．Silenceisthebestdefense.B．Silenceinnegotiationsisofgreathelp.C．Learningtheskillsaboutsilenceisimportant.D．Silencehasdifferentmeaningsindifficultculture.22．（8分）RecentlyIandotherRedCrossvolunteersmetagroupofvictimsfromHurricaneKatrina.Wewerethere,asmentalhealthprofessionals,tooffer“psychological(心理的)firstaid”andIwasstruckbythesimplehealingpowerofpresence.Aswewalkedinthegatetotheshelter,weweregreetedwithaburstofgratitudefromthefirstpersonwemet.Ifeltappreciated,butalsoguilty,becauseIhadn’treallydoneanythingyet.Ifirstrealizedthepowerofpresencemanyyearsagowhenafriend’smotherpassedawayunexpectedly.Ihadreceivedacallsayingshehadjustpassedaway.Iwantedtorushdownthereimmediately,butdidn’twanttodisturbthisverypersonalperiodofsadness.Iwastornaboutwhattodo.Anotherfriendwithmethensaid,“Justgo.Justbethere.”Idid,andIwillneverregretit.Sincethen,Ihavenothesitatedtobeinthepresenceofothers.OnceIsatatthebedsideofayoungmansufferingfromthepainofhisAIDS-relateddying.Hewasnotawake,andobviouslyunawareofothers’presence.However,theatmospherewasbynomeanssolemn.Hisfamily,playingguitarsandsinging,allowedhimtobepresentwiththemasthoughhewerestillfullyalive.Inmylife,Iamrepeatedlystruckbythehealingpowerofpresence.Init,noneofusaretrulyalone.Itisnotonlysomethingwegivetoothersbutalsochangesmeforthebetter.1、Whywerethehurricanevictimsgratefultotheauthor?A．Hebuiltsheltersforthem.B．Hecametostaywiththem.C．Hegaveimmediatefirstaidtothem.D．Hebroughtmentalhealthprofessionals.2、Whatdidtheauthordowhenhisfriend’smotherpassedaway?A．Hedecidednottodisturb.B．Hewenttohisfriends’atonce.C．Heknewwhattodoinstantly.D．Hehesitatedoverwhethertogo.3、Whatdoestheunderlinedword“solemn”inParagraph3probablymean?A．Heavybutwarm.B．Alittlesadbutcomfortable.C．Relaxinganddelightful.D．Veryseriousandunhappy.4、Whathastheauthorlearnedfromhisexperience?A．Beingpresentcanmakeabigdifference.B．Afriendinneedisafriendindeed.C．Thefamilyharmonyisthehappiestthinginlife.D．Beingavolunteercanmakeone’slifemoresignificant.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）Haveyoueverheardofthefollowingpeople?Maybeyes,maybeno.Buttheymaybeaninspirationforyou.TheTreeLadyKateSessionswasanAmericanbotanistandlandscapearchitectcloselyassociatedwithSanDiego,California.AfterbecomingthefirstwomanthatgraduatefromtheUniversityofCalifornia,Berkeley,shetookajobasateacherfarsouthinthedrydeserttownofSanDiego.KatedecidedthatSanDiegoneededtreesmorethananythingelse.Therefore,thisyoungwomansingle-handedlystartedamovementtransformingthetownintotheleafy,garden-filledplaceasitistoday.TheSnowflake(雪花)ManWilsonBentleyisoneofthefirstknownphotographersofsnowflakes.Hisenthusiasmfortakingphotosofsnowflakesbeganfromhisboyhoodandwasoftenmisunderstoodinhistime,buthisdeterminationrevealedtwoimportanttruths：notwosnowflakesarealike,andeachoneissurprisinglybeautiful.In1931,heworkedwithWilliamJ.HumphreysoftheU.S.WeatherBureautopublishSnowCrystals,abookcontaining2,500photographs.TheFatherofHisCountryBythelate1760s,GeorgeWashingtonhadexperiencedfirst-handtheeffectsofrisingtaxesimposedonAmericancolonies(殖民地)bytheBritish,andcametobelievethatitwasinthelocalpeopledbestintereststodeclareindependencefromEngland.DuringtheAmericanWarofIndependence,heledthecolonialforcestovictory.In1787,hewaselectedpresidentoftheConventionthatwrotetheU.S.Constitution.Twoyearslater,WashingtonbecameAmerica’sfirstpresident.Hisretirementfromofficeaftertwotermsestablishedatraditionthatlasteduntil1940,whenFranklinDelanoRooseveltwonathirdterm.The22ndAmendmentnowlimitsthepresidenttotwoelectedterms.1、Whomadeagreatefforttomakeanareabeautiful?A．KateSessions.B．WilsonBentley.C．GeorgeWashington.D．WilliamJ.Humphreys.2、WhatisWilsonBentleywell-knownfor?A．Hiscreativeideastopublishbooks.B．Hiscouragetofightagainstprejudice.C．Hispersistenceinphotographingsnowflakes.D．Hisdevotiontoteachingkidsscientifictruths.3、Whatcanweinferaboutthepeoplementionedinthetext?A．Theyarereallycreative.B．Theyareverydetermined.C．Theyarehighlyeducated.D．Theyareprettyconfident.25．（10分）Tesswaseightyearsold.HerlittlebrotherAndrewwasverysickandtheirparentswerecompletelyoutofmoney.SheheardDaddysaytohertearfulMother,"Onlyamiraclecansavehimnow."TesstookhermoneyandmadeherwaysixblockstoRexall'sDrugStore."Andwhatdoyouwant?"thechemistaskedinanannoyedtoneofvoice."I'mtalkingtomybrotherfromChicagowhomIhaven'tseenforages.""Well,Iwanttotalktoyouaboutmybrother,"Tessansweredbackinthesameannoyedtone."He'sreallysick.HehassomethingbadgrowinginsidehisheadandmyDaddysaysonlyamiraclecansavehimnow.Sohowmuchdoesamiraclecost?""Wedon'tsellmiracleshere,littlegirl.I'msorrybutIcan'thelpyou,"thechemistsaid,softeningalittle."Listen,Icanhelpyou."Thechemist'sbrotherwasawell-dressedman.HeaskedTess,"Whatkindofmiracledoesyourbrotherneed?""Idon'tknow,"Tessreplied."Mommysaysheneedsanoperation.ButmyDaddycan'tpayforit,soIwanttousemymoney.""Howmuchdoyouhave?"askedthemanfromChicago."Onedollarandelevencents,"Tessanswered."Andit'sallthemoneyIhave,butIcangetsomemore,ifIneedto.""Well，whatacoincidence(巧合),"smiledtheman."Adollarandelevencents－theexactpriceofamiracleforyourlittlebrother.Takemetowhereyoulive.Let'sseeif1havethekindofmiracleyouneed."ThatmanwasDr.CarltonArmstrong,asurgeoninneurosurgery(神經(jīng)外科).Theoperationwascompletedwithoutchargeanditwasn'tlonguntilAndrewwashomeagainanddoingwell．Tesssmiled.Sheknewexactlyhowmuchamiraclecost…onedollarandelevencents…plusthefaithofalittlechild.1、Whatcanwelearnfromthefirstparagraph?A．Tess'sbrotherwouldrecoverbecausetherewasamiracle.B．Tess'sbrotherwoulddiebecausehisfamilyhadnomoneytotreathisillness.C．Tess'sfamilywouldlookforamiracletotreatAndrew'sillness.D．Andrewshouldgotohospitalforamiracle.2、Whydidthechemistgetannoyedfirst？A．Becausehewasanervousman．B．BecauseTessdidn'tbuyhismedicine.C．BecauseTesshadbotheredhimandhisbrother.D．BecauseTesswaspoorlydressed.3、WhatcanwelearnaboutDr.CarltonArmstrong?A．Hewasastone－h(huán)eartedman.B．Hecaredforonlyalittlemoney.C．Heneverhelpedothersunlessgivenalotofmoney．D．Hewasakindgentlemanandreadytohelpothers.4、Whatcanbethebesttitle？A．Adyingboyandhersister B．Amiracleof$1.11C．Akinddoctorandhisbrother D．Apoorgirlandadoctor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）DoWhatYouEnjoySometimesyoumayfindthatyouarenothappyinyourlife，althougheverythingisgoingwell．Mostofthetimeyouhaveto1thiskindofunhappylife，sinceitisreallyhardtomakechangesandmoveontoanewbusiness，whichofteninvolvestaking2Myfather，however，wasaquitedifferentexample．WhenIwasabout9or10，hetoldmethatIshouldbewhateverIwantedwhenIgrewup，solongasI3it．HesaidthatifIwerenotfeeling4，Ishouldtrytochangemylifetomakeitmoredelightful，andIwouldfindreal5asaresult．FromhimIlearnedagreatlessononthe6ofdoingone'sfavorite．Myfathergotintotheinsuranceindustrywhenhewasveryyoung，andhewasvery7．Hebecameoneofthecompany'stopsalesmen，eventhoughhewasonly25yearsold．Soonhebecameoneofthefirstindependentinsurancesalesmeninourstate．8，hedecidedtoleavehissuccessful9andmoveontootherfields．Youmight10whyhedidso．Theanswerwassimple：helikedtodosomethingchallenging，somethingthat11.hisstrengthandability，especiallyinawaythatisinteresting．Myfatherjustwantedtohaveatry，andsohedid．Afterleavingtheinsurancecompany，heworkedinsocialmediaandthenindigitaltechnology，whichreally12him．Ofcoursehewasn'tsuccessfulineverythinghetried，buthetoldmefor13thathedidsomethingheliked，andthathehadthe14ofdoingwhatheenjoyed．15one'scomfortablelifeisnoteasy．I'velearnedthisfrommyfather，andIcansaynomatter16isgoodorbad，itis17doingone'sfavorite．Whenwedosomethingwelove，itwhetherthegivesusextra18tomeetourgoals，whichareassociatedwithpsychologicalwell-beingandhealth．Aslongaswehaveno19andgiveitatry，weareforcedtopushagainstourselves．Afterallweallwanttobewhereweare20ourselves．1、A．loseB．stopC．shareD．continue2、A．risksB．turnsC．stepsD．suggestions3、A．promisedB．enjoyedC．a(chǎn)dmittedD．a(chǎn)djusted4、A．luckyB．safeC．comfortableD．special5、A．concernB．pleasureC．strengthD．talent6、A．valueB．honorC．controlD．relief7、A．sensitiveB．cautiousC．optimisticD．successful8、A．BesidesB．ThereforC．HoweverD．Meanwhile9、A．scheduleB．careerC．reformD．competition10、A．wonderB．explainC．blameD．conclude11、A．limitedB．predictedC．testedD．a(chǎn)ffected12、A．confusedB．shockeC．discouragedD．a(chǎn)ttracted13、A．freeB．certainC．goodD．real14、A．satisfactionB．sympathyC．responsibilityD．security15、A．ProtectingB．SelectingC．LeavingD．Arranging16、A．functionB．resultC．signalD．a(chǎn)ttitude17、A．simpleB．normalC．popularD．worth18、A．motivationB．considerationC．occupationD．qualification19、A．rightsB．faultsC．regretsD．excuses20、A．convincingB．evaluatingC．representingD．challenging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）Whatisreading?Readingisactuallyaverycomplexprocessthatrequiresagreatdealofactive1．(participate)onthepartofthereader.Itisanactivethinkingprocessinvolvingtheinteractionbetweenthereaderandtheprint.Thatistosay,thereader’sschema(formerorpreviousknowledge)aboutthetopicto2．(read)andhislanguageknowledge(vocabularyandgrammar)directlyaffecthisunderstandingofthereadingmaterialand3．turn,thenewinformationaboutthetopic4．(contain)inthereadingmaterialwillenlargethereader’sformerschema.Readingisaveryimportant5．(mean)ofgainingknowledgeaboutculture,custom,scienceeducationandtechnologyfromothersorothercountries.Itisagoodwayoflearningthemostadvancedhi-technology6．(serve)theneedsofthesocialdevelopmentandtheinterestsofourpeoplethroughreading.Readingis7．inseparablecomponentoftheEnglishlearning.Weshouldlaysolidfoundationsforouradvancededucation,andwecanmasterthelanguagebyreading8．(large).However,itisaverycomplexactivity9．involvesalmostallpsychologicalprocesses10．(include)sensation,perception,motorbehavior,motivation,attention,emotion,cognitionandallkindsofmemory.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）第二卷第四部分：寫作（共兩節(jié)，滿分35分）第一節(jié)：短文改錯（共10小題；每小題1分，滿分10分）假定英語課上英語老師要求同桌之間互相修改作文，請你修改你同桌的以下作文。文中共有10處語言錯誤，每句中最多有兩處。錯誤涉及一個單詞的增加、刪除或修改。刪除：把多余的詞用斜線（\）劃掉。增加：在缺詞處加一個漏字符號（∧），并在該詞下面寫出該加的詞。修改：在錯的詞下劃一橫線，在該詞下面寫出修改后的詞。注意：1、每處錯誤及修改均僅限一詞。2、只允許修改10處，多者（從11處起）不計分。MostfamiliesinChinahopedtheirsinglechildrenwillhaveahappyfuture,sotheyareverystrictintheirchildren、Sodoteachersinschool!Manychildrenaregivensomuchhomeworkthattheyhavehardlyanysparetimehavesports、Thechildrenareforbiddentodoanythingbuttostudy、Nowondersuchmanychildrenaretiredoflessons、Someevenattackorkillhisparentsandteachers!Ibelievemanypeoplealreadyreadthiskindofnewsinnewspapersormagazines、Shouldn’twedrawlessonfromtheaccidents?Nowourgovernmentismakingoutaplantosolvetheeducationproblems、第二節(jié)書面表達(dá)（滿分25分）29．（25分）假設(shè)你是李華，你的美國朋友Peter最近在某電視臺舉辦的漢語演講比賽中獲得第一名。他的努力和堅持給了你重要的人生啟示。請寫信向他表示祝賀和感謝。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、A2、C3、C4、B5、A6、C7、B8、C9、B10、C11、D12、D13、A14、A15、D16、D17、D18、C19、A20、B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、B3、D4、C22、1、C2、A3、D4、B23、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.Thismethodleads,sheadds,toalonglistofsupposedly“safe”chemicals.Sheandherteamsaythatapproachneedstochange.“Wedefinitelyneedcertainresearch…tofindoutwhatmixturesofchemicalswouldbemoreharmfulthanothers;whatgroupsofchemicals,whentogether,wouldproducemoreharmfuleffects.Andat