2025屆甘肅省金昌市永昌縣四中高三最后一模英語試題含解析

2025屆甘肅省金昌市永昌縣四中高三最后一模英語試題注意事項：1．答卷前，考生務(wù)必將自己的姓名、準(zhǔn)考證號、考場號和座位號填寫在試題卷和答題卡上。用2B鉛筆將試卷類型（B）填涂在答題卡相應(yīng)位置上。將條形碼粘貼在答題卡右上角"條形碼粘貼處"。2．作答選擇題時，選出每小題答案后，用2B鉛筆把答題卡上對應(yīng)題目選項的答案信息點涂黑；如需改動，用橡皮擦干凈后，再選涂其他答案。答案不能答在試題卷上。3．非選擇題必須用黑色字跡的鋼筆或簽字筆作答，答案必須寫在答題卡各題目指定區(qū)域內(nèi)相應(yīng)位置上；如需改動，先劃掉原來的答案，然后再寫上新答案；不準(zhǔn)使用鉛筆和涂改液。不按以上要求作答無效。4．考生必須保證答題卡的整潔?？荚嚱Y(jié)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．Themanageristryingtofindamantorecommendhowthejob.A．isdone B．bedone C．shoulddone D．todo2．Agoodsuitcaseisessentialforsomeonewhois

______

asmuchasJackieis.A．ontheriseB．onthelineC．onthespotD．ontherun3．Webelieve________youhavebeendevotedto________naturallyofgreatnecessity.A．that;being B．a(chǎn)llthat;beC．thatall;are D．what;is4．Theroomissoclean.He________havecleanedityesterdayevening.A．will B．needC．can D．must5．TheWinterOlympics________in2022willsurelybringinmanyinternationaltourists.A．heldB．havingheldC．holdingD．tobeheld6．Wesellalotofproductsoffshoreandtheopportunitytoopenupmarketsinregions________wedon'tcurrentlysellalottoisagreatone.A．where B．thatC．what D．when7．Iwishyouwouldn'tbeso________；youmakefacesateverythingIsay.A．weirdB．politeC．reluctantD．serious8．—What’sup?Youlookworried.—Well,I______ontheproblemfor5hoursbutIhaven’tgotasingleclue.A．haveworked B．workedC．willwork D．havebeenworking9．Whatapity!________joinedintheparty,Iwouldhavemetmyoldfriend． A．lfIhave B．HadI C．Ihad D．HaveI10．________competenceinacquiringEnglishtodaycomesfromtheabilitytoexpressoneselfratherthaninsimplypassingexams.A．Due B．RawC．Core D．Keen11．—Whatshallwedotonightthen?—,whateveryouwant.A．Helpyourself B．It’sadealC．Noproblem D．It’suptoyou12．—Tom,doyouenjoyyourpresentjob?—________.Ijustdoitforaliving.A．OfcourseB．NotreallyC．NotlikelyD．That’sallright13．MymotherisalwayswarningmewhenIgoout,“Don’tgetoffthebus________itisstopping.”A．untilB．whileC．beforeD．a(chǎn)fter14．Nowadays,moreandmoreyoungladies,figuresmostarefineenough,aregoingonadiet.A．who B．whoseC．ofwhose D．ofwhom15．—Doyouthinkheistheonlypersonforthejob?—I’mnotquitesurebuthe’llprove_______tothetask.A．equal B．essentialC．special D．superior16．Mymotheropenedthedrawerto______theknivesandspoons.A．putaway B．putup C．puton D．puttogether17．Catherinecamehomehappily,whichsuggestedthatshethefinalexam.A．hadpassed B．pass C．wouldpass D．shouldpass18．Oh!Theflowercan’tbesaved.Iftheflowerhadbeenwatered，itnow.A．wouldn’tbedying B．isdeadC．hadbeendead D．willnotdie19．-Ifeelcaughtbetweenexperienceandjobsaftergraduation.-It’sreally_________—withoutexperienceyoucan’tgetajobandwithoutajobyoucan’tgetexperience.A．a(chǎn)catch-22B．a(chǎn)HerculeantaskC．a(chǎn)sacredcowD．a(chǎn)MickeyMousecourse20．Thesameboilingwatersoftensthepotatoandhardenstheegg.It’sabout________you’remadeof,notthecircumstances.A．that B．whatC．how D．who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）Weallhaveourwaysofmarkingtime.Mylifeismeasuredbytakingpicturesfromonestorytothenext.Myoldestsonwasborninthemiddleofalongstoryaboutendangeredanimals.Mydaughtercamealongwithapackofgraywolves.It'sthestoryinAlaskathatI'llrememberbest,though.Itwasthestoryaboutthelossofwildland,duringwhichmywifeKathygotcancer.That'stheonethatmadetimestandstill.Withanxiety,Istoppedtakingpicturesonthedaywhenshefoundthattumor（腫瘤）.Cruelly,itwasThanksgivingDay.Earlyexaminationsavestime.Butourswasnotearly.Bythetimeyoucanfeelityourself,it'softenbiggerthanthedoctorwantsittobe.Cancerisathief.Itstealstime.Ourdaysarealreadyshortwithworry.Thencomesthisterribledisease,unfairasstormatharvesttime.Butcanceralsohasthepowertochangeus,forgood.Welearntosimplifyit,enjoyingwhatwehaveinsteadoffeelingsorryforwhatwedon't.Cancerevenmakesmeabetterfather.Myworkhasmademeastrangertomythreekids.ButnowIpayattentiontowhatreallymatters.Thisisnotarace.Thisisanewwayoflifeandanewwayofseeing,allfromthecancer.Intheendeachofushassolittletime.Wehavelessofitthanwecanpossiblyimagine.AndeventhoughitturnsoutthatKathy'scancerhasnotspread,andherprognosis（預(yù)斷）isgood.Wetrytomakeitallcountnow,enjoyingeverypartofeveryday.I'vepickedupmycameraagain.Iwatchthesky,searchingforbeautifullight.Whenwinterstormscome,KathyandIgatherourchildrenandtakethetimetocatchsnowflakes（雪花）onourtongues.Afterall,thisisgood.Thisiswhatwe'relivingfor.1、Whatisthewriter?A．Asponsor.B．Adoctor.C．Aphotographer.D．Adirector.2、HowdidthewriterfeelafterknowingKathy'sdisease?A．Anxious.B．Innocent.C．Powerful.D．Optimistic.3、Whateffecthasthecancerhadontheauthor?A．Hefocusesmuchmoreonhiswork.B．Hespendsmoretimewithhisfamily.C．Hebecomesastrangertohischildren.D．Hedevotesmuchmoretomedicalcare.4、Whatcanbeinferredfromthepassage?A．Cancerstealstime.B．Kathy'scancerhasspread.C．Snowflakesmakethefamilyfeelcool.D．Theauthortakesadifferentwayoflife.22．（8分）Thehealthofmillionscouldbeatriskbecausesuppliesofmedicinalplantsarebeingusedup.Theseplantsareusedtomaketraditionalmedicine,includingdrugstofightcancer.“Thelossofmedicinalplantsisaquietdisaster,”saysSaraOldfield,secretarygeneraloftheNGOBotanicGardensConservationInternational.Mostpeopleworldwiderelyonherbal(藥草制的)medicineswhicharegotmostlyfromwildplants.Butsome15,000ofthe50,000medicinalspeciesareunderthreatofdyingout,accordingtoreportfromtheinternationalconservationgroupPlantlife.ShortageshavebeenreportedinChina,India,Kenya,Nepal,TanzaniaandUganda.Over-harvestingdoesthemostharm,thoughpollutionandcompetitionfrominvasivespecies(入侵物種)andhabitatdestructionallcontribute.Businessmengenerallyharvestmedicinalplants,notcaringaboutsustainability(可持續(xù)性),”thePlantlifereportsays,“damageisseriouspartlybecausetheyhavenoideaaboutit,butitismainlybecausesuchcollectionisunorganized”.MedicinaltreesatriskincludetheHimalayanyew(紫衫)andtheAfricancherry,whichareusedtotreatsomecancers.Thesolution,saysthereport’sauthor,AlanHamilton,istoencouragelocalpeopletoprotecttheseplants.TenprojectsstudiedbyPlantlifeinIndia,Pakistan,China,Nepal,UgandaandKenyashowedthismethodcansucceed.InUganda,theprojecthaskeptasustainablesupplyoflow-costcancertreatments,andinChinaapublic-runmedicinalplantprojecthasbeencreatedforthefirsttime.”“Improvinghealth,earninganincomeandkeepingculturaltraditionsareimportantinencouragingpeopletoprotectmedicinalplants,”saysHamilton,“Youhavetopayattentiontowhatpeopleareinterestedin.”GhilleanPrance,theformerdirectoroftheRoyalBotanicGardensatKewinLondon,agreesthatmedicinalplantsareinneedofprotection.“Notnearlyenoughisbeingdone,”hetoldNewScientist.“Wearedestroyingtheveryplantsthatareofmostusetous.”1、Fromthefirsttwoparagraphs,wecanlearnthat________.A．millionsofpeoplearethreatenedwithcancerB．mostcountriesseeashortageofherbalmedicinesC．a(chǎn)bouttwothirdsofmedicinalspecieswilldisappearD．a(chǎn)numberofmedicinalspeciesareindangerofextinction2、Themajorfactorthatcausesthedecreasingofsuppliesofmedicinalplantsis________.A．over-harvestingB．habitatdestructionC．pollutionD．invasivespecies3、Theunderlinedword“it”inParagraph3refersto________.A．pollutionB．otherspecies’invasionC．sustainabilityD．over-harvesting4、Whatcanbeinferredfromthepassage?A．Protectingmedicinalplantshasalongwaytogo.B．Localpeopledon’tknowhowtoprotectmedicinalplants.C．GhilleanPranceisoptimisticaboutmedicinalplants’future.D．Chinahasmadegreatprogressinprotectingmedicinalplants.23．（8分）BrigitteBarthelemywaswalkingalongtheseashorejustnorthofFrance'sBordeauxwineregionwhenshediscoveredabottlelyingamongsomeseashells.Insideweretwopiecesofpaper.Onecontainedahand-drawnpictureofaseagull,whiletheotherwasamessageshowinghowlitterintheoceanisoftendeadlytothewaterbirds.ThebottleisthebrainchildofGeorgeBoorujy.From2011-2013,theartistdroppedovertwodozenbottlesintotheoceanfromaStatenIslandbeachinNewYork.EachcontainedanimageofawaterbirdandamessagesimilartotheoneBrigittefound.Boorujysayshewasinspiredtotakeactionafterbecomingawareoftheeffectthecarelesslythrownplastichasonwildlife.Researcherssaythataround90%ofseabirdshaveplasticintheirstomachs.Manychicks（雛鳥）diebecausetheirmothersunintentionallyfeedthembitsofplasticalongwiththeirfood.Boorujyhopeshismessagewillraiseawarenessaboutthedangerthatseabirdsface.Healsoenjoystheopportunitytogiveawayhisartandcreateauniqueexperienceforthefinder.Overtheyears,theartisthasreceivedcallsfromlotsofpeoplethathavediscoveredhisbottles.However,theywereallfoundclosetoStatenIsland,makingBrigitte'sdiscoveryevenmorespecial.NomatterhowthebottlereachedFrance,itsmessagehashadabiginfluenceonBrigitte.Shenotonlyplanstobemorerespectfuloftheenvironmentbutcontacted（聯(lián)系）thelocalbirdassociationtoseehowtheycouldhelp.Whilereceivingamessageinabottlecancertainlyhelpinspirepeople,Itshouldnotbenecessarytoremindushowdangerousourcarelesshabitsareforthemarinemammals（海洋哺乳動物）andseabirds.Soremembertoreuse,recycleandmostimportantly,reduce.1、WheredidBrigittefindthebottle?A．InBordeaux.B．InNewYork.C．OnaFrenchbeach.D．OnStatenIsland.2、WhatdocsthebottlefoundbyBrigittecontain?A．Aseagull.B．Amessage.C．Someseashells.D．Someplastic.3、WhatmadeBrigitte’sdiscoverymorespecial?A．ShelivedclosetoStatenIsland.B．Somethingspecialinthebottle.C．Fewpeoplehadfoundthebottles.D．Theplacewhereshefoundthebottle.4、Whatdoestheauthorthinkofthebottles?A．Theyareunnecessary.B．Theycaneducatethefinders.C．Theyareagreatwaytoshowart.D．Theycausedangertoseaanimals.24．（8分）Australianscientistsaretryingtogivekangaroo-stylestomachstocattleandsheepinordertocutthegreenhousegasestheysendout,whichisthoughttoberesponsibleforglobalwarming.Thankstospecialbacteriaintheirstomachs,kangarooflatulence(腸胃氣脹)containsnomethaneandscientistswanttotransferthatbacteriatocattleandsheepwhoproducelargequantitiesoftheharmfulgas.Whiletheusualimageofgreenhousegaspollutionisabillowingsmokestack,pushingoutcarbondioxide,farmanimals’passingwindcontributeasurprisinglyhighpercentageoftotalemissionsinsomecountries.“FourteenpercentofemissionsfromallsourcesinAustraliaarefromentericmethanefromcattleandsheep,”saidAtholKlieve,aseniorresearchscientistwiththegreenslandstategovernment.“AndifyoulookatanothercountrysuchasNewZealand,whichhasgotamuchhigheragriculturalbase,theyareactuallyuparound50percent,”hesaid.Researcherssaythebacteriaalsomakethedigestiveprocessmuchmoreefficientandcouldpotentiallysavemillionsofdollarsinfeedcostsforfarmers.Butitwilltakeresearchersatleastthreeyearstoisolatethebacteriabeforetheycanevenstarttodevelopawayoftransferringittocattleandsheep.Anothergroupofscientists,meanwhile,havesuggestedAustraliansshouldfarmfewercattleandsheepandjusteatmorekangaroos.Andabout20percentofhealth-consciousAustraliansarebelievedtoeatthenationalsymbolalready.It’slowinfat,it’sgothighproteinlevelsanditisverycleaninthesensethatbasicallyitisfree-range(放養(yǎng)的)animal,”saidPeterAmptoftheUniversityofNewSouthWales’instituteofenvironmentalstudies.1、Scientistsintendtoputbacteriaintocattleandsheep________.A．tohelpAustralianfarmerstoearnmoremoneyB．topreventthemfromsendingoutharmfulgasesC．sothattheycanprotectAustralianecosystemD．sothattheycanmakefulluseofspecialbacteria2、AtholKlieveseemstobelievethat_________.A．farmanimalsaretoblameforgreenhousegasesB．lesscattleandsheepareraisedinNewZealandC．cattleandsheepproducelesscarbondioxideD．NewZealandhasthemostanimalsintheworld3、TheadvantagesPeterAmptlistsaboutkangaroosdon’tinclude________.A．itisrichinproteinB．itislowinfatC．itischeaperthanbeefD．itiscleanerthansheep4、Themainideaofthepassageisto________.A．discussabetterwaytoprotecttheearthB．warnfarmersofthedangerofanimalwasteC．explainthepossiblesolutionstopollutionD．presentarecentstudyonglobalwarming25．（10分）Americanwomenwhoworkascomputerprogrammers,chefsanddentistsearn28percentlessthanmendoingthesamejobs.Thosearethejobswiththebiggestwagedifferencesbetweenmenandwomen,accordingtoanewstudy.Overall,thestudyfoundthatwomenearn5.4percentlessthanmenfordoingthesamejob,inthesamelocationandforthesameemployer.ThewagedifferencesbetweenwomenandmenweresimilarintheUnitedKingdom,Australia,GermanyandFrance.5.4percentisabigdifferenceinpaybetweenmenandwomenbecauseitcannotbeexplainedbywomenandmentakingthesamekindsofjobs.Itcanonlybeexplainedbybias(倔見)againstwomen,orothercauses,suchaswomennotbeinggoodataskingforpay.Researchsuggeststhatwomendonotnegotiate(交涉)aswellasmenwhenitcomestopay.Andwomenaregenerallymoreuncomfortableaskingfellowemployeeshowmuchtheymake,sotheycanseeiftheyarebeingpaidfairly.Accordingtothestudy,womenearnedatleast15percentlessthanmeninthesejobcategories:psychologists,pharmacists,physicians,opticians,pilotsandgameartists.Butinthefieldsofsocialwork,sellingmerchandise,researchassistantsandphysicianadvisors,womenearnmorethanmen.Insocialwork,womenearned7.8percentmorethanmen,thereportsaid.Thatwasthejobcategorywiththebiggestadvantageforwomen.Itwasstillfarlessthanthe28percentpayadvantageformeninsomefields.Comparingsalariesforfull-timeworkers,womenearnonly79percentasmuchasmen.Overalifetime,thatmuchofadifferenceinpaycanamounttoalargeamountofmoney.Womenonlyearned57percentasmuchasmenin1975.Itisnowupt079percent.Thatisprogress,thereportsays,butnotenough.1、Whichofthefollowinghasthebiggestpaydifferencesbetweenwomenandmen?A．Apilot.B．Agameartist.C．Aresearchassistant.D．Acomputerprogrammer.2、Whydowomenearnlessthanmenwhendoingthesamejob?A．Theydon’ttrytheirbesttofightforbetterpay.B．Theycarelessabouttheirpaythanmen.C．Bossesusuallylooksdownuponwomen.D．Theydon-tworkaseffectivelyasmen.3、Howmuchincomedofull-timewomenworkerslosecomparedwithmen?A．5.4%.B．7.8%.C．21%.D．28%.4、Whatdoesthereportthinkofthewomen'spay?A．Itisgrowingratherquickly.B．Itisrisingbutnotsatisfying.C．Itisnotfairforwomenworkers.D．Itisreasonableforpresentsituation.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）閱讀下面短文。從短文后各題所給的四個選項（A、B、C和D）中，選出可以填入空白處的最佳選項，并在答題卡上將該項涂黑。Teachingischallengingandteachingcollegeisoftenamixedbag.Sometimesmyclassfeelsmorelikeacafeteria,wherestudentscomeandgo,____inthemiddleofmylectures.Mostlythesestudentshaveenteredcollegerightoutofhighschool.Collegeseemstothemlike____acontinuationofhighschool,____thesenseofnewnessthatoftendrivescuriosityandachievement.Butthereisacategoryofstudentsthatgiveseveryonereasonsfor____.Theyaretheso-called“nontraditionalstudents”：thosewho,foronereasonor____，didn'tgotocollegewhentheywere18.butmanyyearslater.Someyearsbackinmyteaching,whilecallingoutnamesfromthenamelistonthefirstday，Inoticedagray-hairedwomanofabout70.Shewaswanderinginthedoorway,____hernewbookslikeaschoolgirl.“I'mnotonthenamelist，”shevolunteered.“ButIwas___ifIcouldsitinforthefirstclass,toseewhatmarine(海洋)biologyisabout.”Thiswoman'seagerness____me,soIinvitedhertohaveaseat.Ibegantheclasswithquestionstogeta(n)____ofhowmuchknowledgetheywerebringingtothecourse.AsIquestionedthemaboutthedifferencebetweenfishesandseagoingmammals,mostofmynewstudentsremained___.ButNatalie,theolderwoman,wasontheedgeofherseat,____answers.Attheendoftheclass,shecameuptomeandapologizedforbeingthe“extra”student.Shesaid，“Willyou____meanotherchance？”____atlosingher,Iactedquicklytoremoveher____.“I'llseeyounextclass，”Isaid.Natalieturnedouttobeavitaland____student.Shecommuted50mileseachdaytogettoschool,oftenintheseverewinter,andnevermissedaclass.___this,shewasenthusiasticabouthelpingmyyoungerstudents.Apparentlytheseolderstudentshavethe____overthem.Itliesinthebroadthanddepthoftheirpathoflife.Afterhaving____numerouspersonalandprofessionalbarriers,theyhaveanexpansiveworldview.____areturntoschoolmay,atfirst,befrighteningforthem,theytendtomakeitbecausetheyare____greattroubletoputtheirstudiesintoanalready-fulllife.1、A．never B．seldom C．often D．hardly2、A．morethan B．nomorethan C．ratherthan D．otherthan3、A．creating B．inspiring C．involving D．lacking4、A．hope B．desperation C．a(chǎn)nger D．pity5、A．theother B．others C．a(chǎn)nother D．none6、A．holding B．buying C．bringing D．fetching7、A．hoping B．expecting C．thinking D．wondering8、A．puzzled B．embarrassed C．impressed D．a(chǎn)mused9、A．plan B．idea C．concept D．sense10、A．enthusiastic B．calm C．interested D．silent11、A．a(chǎn)sking B．volunteering C．rejecting D．repeating12、A．learn B．make C．offer D．introduce13、A．Alarmed B．Relaxed C．Relieved D．Annoyed14、A．concern B．curiosity C．a(chǎn)ttention D．concentration15、A．intelligent B．humorous C．diligent D．open--minded16、A．Regardlessof B．Butfor C．Except D．Apartfrom17、A．a(chǎn)dvantage B．experience C．a(chǎn)bility D．belief18、A．gotawayfrom B．gotacross C．gotover D．gotthrough19、A．Unless B．Until C．When D．While20、A．demanding B．taking C．sparing D．Escaping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）Myunclewillneverforgetwhathappenedtohimyesterday.Towardstheevening,hewas1．(邀請)toaninn.Heenjoyedhisdinnerwithhisfriends,2．(喝)alotofwineAsar3．,hegotdrunk.Heinsistedondrivinghomeafterthemeal,althoughhisfriendstriedto4．(說服)himnotto.Afewminuteslater,hewaswindinghisw5．onthestreet.Andthenhiscarran6．a(chǎn)talltree.Fortunately,hewasstillalive,thoughs7．injured.Thepolicecametothescene,andhewastakentohospital.Naturally,hehadto8．inhospitalforseveraldays.W9．still,hisdrivinglicensewascancelled.Howheregretted10．hehaddonewithoutlisteningtohisfriends.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）WearegoingtotaketheCollegeEntranceExamsinaboutsixteendays、Therefore,manystudentsstilldon’tknowwhattobalancetheirstudy,restandphysicalexerciseswhilepreparedfortheExams、Theyusuallydevotetoomuchtimetogoovertheirlessons,whatresultsinapoorhealthandlowefficiencyoflearning、Astheproverbgoes,earlytobedandearlytorisemakeamanhealthy,wealthyandwise、We’dbetterleaveusenoughtimetorestandsleepsinceitenablesustolearnourlessonsmoreefficient、What’smore,astrongandhealthybodyisthebaseforourfurtherstudy,futureworkandcreativeactivities、Inbrief,aswearepreparingfortheExams,don’tforgetthatrest,exerciseandstudywereequallyimportant、第二節(jié)書面表達(dá)（滿分25分）29．（25分）假定你是李華，你所在的城市正在創(chuàng)建全國文明城市。國檢結(jié)束后，城市形象和市民素質(zhì)有了明顯提升，但仍然有一些不文明現(xiàn)象。請你給荊門日報寫一封建議信，呼吁大家行動起來，爭做文明市民，內(nèi)容包括：1.分享創(chuàng)城的意義；2.爭做文明市民的建議；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；全國文明城市theNationalCivilizedCity_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________YoursLiHua

參考答案第一部分（共20小題，每小題1.5分，滿分30分）1、B2、D3、D4、D5、D6、B7、A8、D9、B10、C11、D12、B13、B14、C15、A16、A17、A18、A19、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、C2、A3、B4、D22、1、D2、A3、C4、A23、1、C2、B3、D4、B24、1、B2、A3、C4、D25、Anewstudysuggeststhatwashingdishesbyhandishealthierthanusingadishwasher.Nobodylikesdoingthedishes,butitturnsoutthatdoingthistaskmightpayoffinanunexpectedway.AccordingtoanewstudypublishedintheJournalofPediatrics,washingdishesbyhandinsteadofusingadishwashermightpreventthedevelopmentofallergies(過敏).ResearchersinSwedensurveyedtheparentsof1,029childrenaged7and8.Theydiscoveredthatchildrenwhosefamilieshand-washedthedishesinsteadofusingamachinewerelesslikelytohaveallergies.Earlierresearchhasshownthatdisheswashedbymachinearecleanerthanthosewashedbyhand.Sowhywouldkidswhoeatoffofslightlydirtierplatesbebetteroffwhenitcomestopreventingallergies?Oneexplanationisbasedonatheoryknownasthe“hygienehypothesis”,whichsaysthereasonkidsdevelopallergiesisthattheirsurroundingsareactuallytooclean.Yourimmunesystemkeepsyouhealthybyfightinggerms(細(xì)菌)likebacteriaandviruses.Butwhenyouhaveallergies,itoverreactsandtriestofightordinarythingslikepollen(花粉)orcertainfoods.Beingexposedtogerms,especiallyearlyinlife,isgoodtrainingfortheimmunesystem,saysthel