2023届河南省郑州市高新区高三第一次调研测试英语试卷含解析

2023高考英语模拟试卷考生请注意：1．答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内，不得在试卷上作任何标记。2．第一部分选择题每小题选出答案后，需将答案写在试卷指定的括号内，第二部分非选择题答案写在试卷题目指定的位置上。3．考生必须保证答题卡的整洁。考试结束后，请将本试卷和答题卡一并交回。第一部分（共20小题，每小题1.5分，满分30分）1．——Whatwaswrong?Whydidn’tyougotothepicnicasscheduled?——I’msorry.I_________aseriously-injuredoldmantothehospital.A．woulddeliverB．deliveredC．haddeliveredD．wasdelivering2．—Mum,IbrokeDad’ssunglassesthismorning.—Youneedtomakeanapologyforyourfault,________youwillregret.A．andB．orC．butD．for3．Thelackofeco-friendlyhabitsamongthepublicisthoughttobeamajor_____________ofglobalclimatechange.A．Result B．causeC．warning D．reflection4．—Helen,areyougoingIotheairporttopickupJackthedayaftertomorrow?—________tomorrownight.Iwouldgo.A．Werehetocomeback B．IfhewasabouttocomebackC．Hadhecomeback D．Ifhewouldcomeback5．Itisgoingtoraintoday.Takeanumbrellawithyouto________youfromtherain.A．stop B．prevent C．keep D．protect6．Thisisthefirsttimethatwe________afilminthecinematogetherasafamily.A．see B．hadseenC．saw D．haveseen7．_____here,comeandhaveacupoftea.A．Passing B．Topass C．Pass D．Havingpassed8．IthoughtFatherwouldbebetter,but______itis,heisgettingworse,whichmakesmemoreworried.A．before B．as C．because D．after9．Maryreallyhardonhisbookandthinkshe’llhavefinisheditbyFriday.A．worked B．hasbeenworkingC．hadworked D．hasworked10．ThisJanuarywillbeverypreciousforusbywhichtimewe________reviewingSeniorBookI.A．willfinish B．willhavefinishedC．havefinished D．willbefinished11．—What’sup?Youlookdown.—Ihavepilesofpapers________,butItypesoslowly.A．tobetypedB．typedC．totypeD．beingtyped12．Whenonholidays,therailwaysputontrainstomakepeople’stravelmoreconvenient.A．regularB．specialC．particularD．unusual13．Thecountry’schiefexportsarecoal,carsandcottongoods,cars_____themostimportantofthese.A．havebeenB．areC．beingD．arebeing14．Tomisproudand________,neveradmittingheiswrongandalwayslookingforsomeoneelsetoblame.A．strict B．stubbornC．sympathetic D．sensitive15．NotuntilIwentupfurther________thatunderthetree________,obviouslysoundasleep.A．thatIsaw;didaboylie B．Isaw;layaboyC．didIsee;didaboylie D．didIsee;layaboy16．______exactlywhatwaswrongwithhim,thedoctorsgavehimacompleteexamination.A．TodiscoverB．DiscoveringC．DiscoveredD．Havingbeendiscovered17．—Fionaneverfailstograspanychanceofpromotion.—She’sawomanof________.A．ambition B．attentionC．expectation D．reputation18．Thisisnotaneconomicalwaytogetmorewater;________,itisveryexpensive.A．worsestill B．onthecontraryC．inshort D．inaddition19．—DoyouknowLindawasfiredforhercasualattitudetowardsthejob?—Nowondershe_________whenItriedtoamuseherthismorning.A．wastickledpink B．pulledmylegC．gavemethecoldshoulder D．sawthehandwritingonthewall20．.JennywassadoverthelossofthephotossheshotinCanada,_________thiswasamemorysheespeciallytreasured.A．if B．when C．as D．where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）InChina，chainrestaurantsespeciallythebigmultinationalonesarecool．GoingtoStarbucks，forexample，isastatussymbol．Itnotonlysays，"I'mrichenoughtobuythisoverpricedcoffee，"butalso，"I'mcosmopolitan（见多识广的）enoughtobepartofglobalization．"WhereIcomefromintheUK，however，chainsareneitherfashionablenorgourmet（美食的）．ChainsarewhereyougoonNewYear'sDaywhennowhereelseisopen，orwhenyouare5yearsoldandyourparentscan'tstandhearing，"I'mhungry!"anylonger．Inmyowncase（withregardstoMcDonald's），achainiswhereyouaretakenonyourfirst"date"．Evenattheageof13，Iknewtogivetheguythe"let'sjustbefriends"phonecallthenextday．IntheUK，independentcafesandrestaurantsaremakingacomebackonthefashionscene．Nowadays，aLondonerwhosays"let'smeetforacoffeeatMonmouth"（anindependentcafe）ismuchcoolerthanonewhosays"let'sgotoStarbucks"．EvenifMonmouth'scoffeeisalittlemoreexpensive，there'sasatisfactioninknowingyourpoundsaren'tgoingstraighttothebigcorporations．Ofcourse，therearechainstoresallovertheUK；youcan'tgofiveminuteswithoutspottingaCostaCoffee．Butnumbersdonotadduptogoodtaste．Ido，however，haveaconfession（坦白）．AftermovingtoChinaIhadmomentswhenallthericeandKungPaoChickenbecametoomuch．I，too，haveretreatedtoMcDonald's．1、ManyChinesepeopleliketogotomultinationalchainrestaurantsbecause______．A．therestaurantsgivecustomersatasteofforeigncultureB．therestaurantsofferdifferentfoodanddrinksfromotherrestaurantsC．theybelievethateatingtherewillshowtheirwealthandsocialstatusD．theserestaurantsareperfectplacesforaromanticdate2、WhichofthefollowingstatementsisTRUE？______A．TheauthorhasgrowntiredofChinesefood．B．BranchesofMonmouth'scafecanbefoundallovertheUK．C．MostindependentstoresareclosedonNewYear'sDayintheUK．D．ItiscoolintheUKtotakeyourfirstdatetoachainrestaurant．3、Wecaninferfromthearticlethat______．A．theauthordoesn'tlikefoodfromPizzaHutB．theauthordoesn'tliketofollowfashiontrendsC．manyBritonsthinkthatnumbersmeanpoorqualityD．manyBritonsdon'tlikebigcorporations22．（8分）AboutUsCattyShackRanchWildlifeShelterisanorganizationthatdoesn’trunforprofit.Ourmissionistoprovideasafe,loving,foreverhomeforendangeredbigcats,andtoeducatethepublicabouttheirsituationinthewild.Ourprimaryfocusisintherescueofcatsfromserioussituations.OnceananimalistakeninatCattyShackRanch,theywillhavealoving,foreverhomeforlife.Nowweneedsomevolunteerstohelpus.WhatDoVolunteersDo?OurvolunteersattheRanchdoavarietyofprojectsincludingupkeepofenclosures,yardworkandlandscaping,cleaningandpreparationofresidents’fooditems,guidingtours.WealsohaveourThriftStorethatneedsvolunteers.ItprovidesaperfectopportunityforthepersonwhoneedstobeinsidefromtheFloridaheat,orjustlovestohelpoutwithretail（零售）!ThriftStorevolunteershelpwithsellingitems,cleaning,andorganizingthestore.VolunteerRequirementsYoumustbeatleast18yearsold,ifvolunteeringfor“schoolcommunityservicehours”,volunteersmaybe16yearsoldbutmustbeaccompaniedatalltimesbyaparentoradults.Youmustbeabletovolunteeratleast8hoursamonthtobean“active”volunteer.Beforevolunteering,allpaperworkandappropriatedocumentationmustbecompletedandturnedintoourVolunteerCoordinator.HowtoBecomeaVolunteerJoinusforaVolunteerMeetingonthefirstThursdayofeverymonthat6:00PM.Atthemeeting,pleasebring:①CompletedVolunteerForm（downloadhere）;②DriverslicenseorofficialformofID;③$20（cashorcheck）foryourshirtandvolunteerbadge（徽章）.AdditionalInformationIfyouhavefurtherquestionsaboutvolunteers,pleasecontactusbyemail,wewillrespondtoyourinquirywithinafewdays.1、WhichofthefollowingistrueaboutCattyShackRanch?A．Itisanon-profitorganization.B．Youcanvisititfreeofcharge.C．Itisapubliceducationalbase.D．Youcangeteducatedonwildlifeprotection.2、ThedutyofthevolunteersofCattyShackRanchcan’tinclude.A．doingsomecleaningB．workingasaguideC．managingthestorethereD．actingasadoorkeeper3、Ifyouwanttobecomean“active”volunteerofCattyShackRanch,youmust.A．haveatleast8hourstoworkperdayB．dovoluntaryworkaccompaniedbyadultsC．workbeyondtherequiredhourspermonthD．havearichworkingexperience23．（8分）Americanwomenwhoworkascomputerprogrammers,chefsanddentistsearn28percentlessthanmendoingthesamejobs.Thosearethejobswiththebiggestwagedifferencesbetweenmenandwomen,accordingtoanewstudy.Overall,thestudyfoundthatwomenearn5.4percentlessthanmenfordoingthesamejob,inthesamelocationandforthesameemployer.ThewagedifferencesbetweenwomenandmenweresimilarintheUnitedKingdom,Australia,GermanyandFrance.5.4percentisabigdifferenceinpaybetweenmenandwomenbecauseitcannotbeexplainedbywomenandmentakingthesamekindsofjobs.Itcanonlybeexplainedbybias(倔见)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.24．（8分）Inthespaceofjusttwoyears,theappDouyin,createdbyBeijing-basedcompanyByteDance,hasgatheredmorethanhalfabillionusers—around40％ofthemoutsideChina—whoshareshortvideosofthemselveslip-syncing（假唱）,cooking,dancingorjustbeingsilly.WhatsetsByteDanceapartisitssuccessinthesocialmediacategory,whichiscontrolledbyFacebook,TwitterandSnap—allWesterncompanies.ByteDancecallsitselfanartificialintelligencecompany.Itusesmachinelearningandalgorithms（算法）tofigureoutwhatpeoplelikemostandgivethemmoreofwhattheywanttosee.OnDouyin,peoplecaneditandbeautify15-secondvideosbeforepostingthemonline.Theapphasevenmadeaphrasetodescribepeoplegluedtotheircustomizedfeeds:“shuaDouyin”or“scrollingthroughDouyin”.Lastyear,thecompanyreleasedTikTok,theoverseasversionofDouyin.ByteDance’sgrowingvideoempirehasmadeittheworld’sfifthbiggestappmaker.ByteDancesaysTikTokandDouyintogetherhavemorethan500millionmonthlyactiveusers.InvestorslikeByteDancebecauseitshundredsofmillionsofusersattractalotofadvertisingmoney.Thevideoappsarelucrativebecausetheyattractalotofusersintheirteensand20s,whoaremoregenerouswiththemoney.ByteDancealsomakesmoneythroughincomesharingdeals.PeopleonTikTok,forexample,canbuydigitalcoinstogivetootherpeopleontheapp—likethrowingmoneyinaperformer’stipjar.ByteDancetakesacutofthoseearnings.ByteDance’sfounderandCEOisZhangYiming,a35-year-oldformerMicrosoftemployee.PeoplewhohaveworkedwithZhangdescribehimassomeonewhothinksdeeplyabouttechnologyandspendsmuchofhisfreetimewritingcode.LikeFacebookandTwitter,ByteDanceisalsobattlingfakenewsandinappropriatecontent.ByteDancepromisestoaddthousandsmoreemployeestoreviewthecontentonDouyin.1、WhatmakesByteDancesospecial?A．Itsappchallengessimilarcompanies’ruleinWesternworld.B．Itinventedthesocialmediaappinitiallyintheworld.C．Itisthebiggestartificialintelligencecompanyontheearth.D．IthascontrolledFacebook,TwitterandSnap.2、WhyisDouyinsopopular?A．Itisanewgenerationhi-techproduct.B．Ithasbothhomeandoverseasversion.C．Itiseasyandtotallyfreetooperateonline.D．Itmeetsthedemandofpeopleindividually.3、HowdoesByteDancemakeaprofit?A．Bychargingtheusers. B．Bychargingtheadvertisement.C．Byforcingtheuserstodonate. D．Bysellingitsartificialintelligence.4、Whatcanbethebesttitleforthetext?A．Douyin,aPopularAppB．ByteDance,aSuccessfulCompanyC．FacebookTogetherwithDouyinIsBattingFakeNewsD．TwitterIsHelpingDouyinAttractMoreAdvertisingMoney25．（10分）Overthecourseofhislongandamazingcareer,W.SomersetMaugham(1874-1965)achievedgreatsuccessasanovelistandaplaywright.Nothappywithjustbeingawriter,Maughamwasalsoaspy.Butthiswaslessofasuccessthanhiswriting.Dec15,2016marked51yearssincehisdeath,andMaugham’sworkshaveneverbeenoutofprint.OfHumanBondage(1915)washismasterpiece.Thetitlecomesfromthegreat17thcenturyDutchphilosopherBaruchSpinoza.Thephilosopherthoughtthathumanbeingswereslavestowhattheywantedandneeded.That’sexactlywhatPhilipCarey,theheroofthenovel,experiences.Careyisaslavetohisemotionalneeds.Hedoesn’tgetmuchlovewhenheisachild,sohelooksforlovelater.Afterlosingbothhisparentsearlyinhislife,Careyisraisedbyapaternalunclewhoisemotionallycold.Inhisadultlife,hegoesfromwomantowomanandjobtojob,ashefindsitastruggletofindeitherpersonalhappinessortherightjobforhistalents.Notwantingtobecomealawyer,heiseventuallytrainedandqualifiedasaphysician.Buttrueloveismuchhardertofind.Hefindsthatheattractswomenhehasnofeelingsforandfallsinlovewiththosewhohavenointerestinhimor,worse,trytotakeadvantageofhim.Heistornapartbythepainofhishelplessloveofawaitressandnotbeingabletoreturntheloveofayoungartist.AlthoughMaughamtriedtohideit,thebookisabouthisownlife.Carey’slovelesschildhoodandromantictroubleswereMaugham’sown.However,hemanagedtoturnthesepainfuldetailsintoastorythatwouldinterestreaderswhosharehischaracters’feeling.Maughamdoesnotjustwriteabouthislifeinthenovel.Hewritesaboutdeeplypersonalthingsinawaythatspeakstoeveryoneabouttheirwantsandneeds.1、InwhichfielddidMaughamachievegreatsuccess?A．Politics. B．Writing.C．Sport. D．Philosophy.2、WhatcanweinferfromParagraph2?A．Maugham’sworksmayneverappearinprint.B．Maugham’sworksbecomeabighitovernight.C．Maugham’sworksdon’ttopthebest-sellerlist.D．Maugham’sworksarestillpopularamongreaders.3、Thehero,Carey,inOfHumanBondage_________.A．isthemasterofhisownemotionsB．thinksit’smucheasiertofindtrueloveC．hasstrongemotionalneedsforlackofloveD．rescueshimselffrombeingaslavetohisneeds4、Whatisthearticlemainlyabout?A．Maugham’smasterpiece. B．Maugham’sbeliefs.C．Maugham’sloveforwriting. D．Maugham’spopularity.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）CharlesPlumb,aU.S.NavalAcademygraduate,wasajetfighterpilotinVietnam.After75combatmissions,hisplanewas1byasurface-to-airmissile.Plumbwas2andspentsixyearsinprisoninVietnam.Hesurvivedandnow3aboutlessonslearnedfromthatexperience.Oneday,Plumbandhiswifeweresittinginarestaurantwhenamanatanothertablecameupandsaid,"You'rePlumb!You4jetfightersinVietnamfromtheaircraftcarrier(航空母舰)KittyHawk.Youwere5!""Howintheworlddidyouknowthat?"askedPlumb."I6yourparachute,"themanreplied.Plumbgasped（倒吸一口气）insurpriseand7.Themanpumpedhishandandsaid,"Iguessitworked!"Plumbassuredhim,"It8did—ifyourchutehadn'tworked,Iwouldn'tbeheretoday."Plumbcouldn'tsleepthatnight，thinkingaboutthatman.Hesays,"IwonderedhowmanytimesImighthavepassedhim9theKittyHawk.IwonderedhowmanytimesImighthaveseenhimandnotevensaid'Goodmorning,howareyou',oranything10,yousee,Iwasafighterpilotandhewasjusta11."Plumbthoughtofthemanydaysthesailorhadspentonalongwoodentableinthebowels（深处）oftheship12workingoneachchute,holdinginhishandseachtimethe13ofsomeonehedidn'tknow.Plumbaskshis14,"Who'spackingyour15?Everyonehassomeonewhoprovideswhattheyneedtomakeit16theday."Plumbalsosaysthatheneededmanykindsofparachuteswhenhisplanewasshotdown—heneededhis17parachute,hismentalparachute,hisemotionalparachute,andhisspiritualparachute.Hecalledonallthese18beforereachingsafety.Hisexperienceremindsusallto19andbekindtopeoplewhopackourdailyparachutes,andstrengthenustogothrough20times.1、A．followed B．destroyed C．spied D．seen2、A．released B．wounded C．captured D．killed3、A．lectures B．gives C．studies D．hear4、A．repaired B．made C．flew D．cleaned5、A．takendown B．lookeddown C．setdown D．shotdown6、A．bought B．checked C．found D．packed7、A．gratefully B．suspiciously C．happily D．sadly8、A．almost B．surely C．narrowly D．nearly9、A．abroad B．in C．on D．at10、A．so B．because C．unless D．though11、A．sailor B．captain C．pilot D．technician12、A．unwillingly B．immediately C．worriedly D．carefully13、A．death B．fortune C．fate D．chance14、A．wife B．children C．sailors D．audience15、A．luggage B．bag C．parachute D．future16、A．through B．to C．upto D．as17、A．psychological B．physical C．imaginary D．safe18、A．spirits B．emotions C．supports D．people19、A．award B．recognize C．reward D．help20、A．happy B．tough C．comfortable D．cosy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）Languageissometimeswrittenasacodesothatpeoplecancommunicatesecrets.During1．SecondWorldWar,theGermanNavy(海军）usedacodetosendmessages.TheBritish2．(break)thecodeandlearnedaboutmanyGermanplans.TheJapanesealsousedacodetotalkto3．(them)shipsatsea.ItwascalledthePurpleCode.AlthoughtheAmericanssoonbrokethiscode,theJapanesedidn'tknow4．hadbeenbroken.In1942,theAmericansbegantousetheirowncodetosend5．(secret).AfewNavajo（那伐鹤人）Indiansmadethiscode,which6．(base)ontheirlanguage,whichonlysomeAmericanIndiansspoke.ThecodedescribedafewthingstheAmericanarmydid.Onlytheycouldunderstandthiscode,sotheywentwiththearmyfromislandtoislandasitfoughtagainsttheJapanese.TheseNavajosoldierspromised7．(keep)thiscodeasecret,eventhoughthiscouldcausetheir8．(die).TheJapaneseneverbrokethecodebecausetheyknewnothing9．theNavajolanguage.Andthecode,10．connectedtwolanguages,helpedwinthewarinthePacific.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。错误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。3、错误类型不涉及单词拼写。Goodrelationshipsbetweenteachersorstudentsareimportanttoteachingandlearningonlywithgoodrelationshipscanstudentandteacherscooperatewell.Goodrelationshipsdependedonbothsides.Ontheonehand,studentsshouldrespectteachersandourhardwork.TheyshouldpoliteCoteachersandreadytofollowingtheiradvice.Onanotherhand,teachersshouldbekindly,friendlyandpatienttostudents.Theymustberesponsibleontheirteachingandhelpstudents.Ifbothsidestreat10eachotherinafriendlyway,teachingandlearninginclasswillbehighlyefficient.第二节书面表达（满分25分）29．（25分）假设你是李华，你的英国朋友Tom在宁夏大学学习汉语，爱好户外骑车旅游、摄影，也喜欢美食，一直梦想看黄河，本周末想约你游玩。他用电子邮件向你说明游玩的事情，希望你提供游玩的一些建议。请你给他写一封回信，内容要点包括：1.

很高兴一起去游玩；2.

游玩日程安排：周六从银川出发，沿着黄河边骑车游玩，黄昏参观青铜峡黄鹤楼夜景，晚上住宿吴忠;

周天观光吴忠并吃穆斯林做的美食，晚上沿滨河大道返回银川。注意：1.词数120左右；2.

开头和结尾已给出，不计入总词数；3.可适当增加细节，以使行文连贯。参考词汇：穆斯林：Muslim；青铜峡黄鹤楼：Ningxia

Yellow

Crane

Tower;滨河大道：the

Riverside

RoadDearTom,_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Looking

forward

to

your

reply.Yours,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、B3、B4、A5、D6、D7、A8、B9、B10、B11、C12、B13、C14、B15、D16、A17、A18、B19、C20、C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、C2、C3、D22、1、A2、D3、C23、Anewstudysuggeststhatwashingdishesbyhandishealthierthanusingadishwasher.Nobodylikesdoingthedishes,butitturnsoutthatdoingthistaskmightpayoffinanunexpectedway.AccordingtoanewstudypublishedintheJournalofPediatrics,washingdishesbyhandinsteadofusingadishwashermightpreventthedevelopmentofallergies(过敏).ResearchersinSwedensurveyedtheparentsof1,029childrenaged7and8.Theydiscoveredthatchildrenwhosefamilieshand-washedthedishesinsteadofusingamachinewerelesslikelytohaveallergies.Earlierresearchhasshownthatdisheswashedbymachinearecleanerthanthosewashedbyhand.Sowhywouldkidswhoeatoffofslightlydirtierplatesbebetteroffwhenitcomestopreventingallergies?Oneexplanationisbasedonatheoryknownasthe“hygienehypothesis”,whichsaysthereasonkidsdevelopallergiesisthattheirsurroundingsareactuallytooclean.Yourimmunesystemkeepsyouhealthybyfightinggerms(细菌)likebacteriaandviruses.Butwhenyouhaveallergies,itoverreactsandtriestofightordinarythingslikepollen(花粉)orcertainfoods.Beingexposedtogerms,especiallyearlyinlife,isgoodtrainingfortheimmunesystem,saysthe