甘肃省宕昌县第一中2023-2024学年高三第一次调研测试英语试卷含解析

甘肃省宕昌县第一中2023-2024学年高三第一次调研测试英语试卷注意事项：1．答题前，考生先将自己的姓名、准考证号填写清楚，将条形码准确粘贴在考生信息条形码粘贴区。2．选择题必须使用2B铅笔填涂；非选择题必须使用0．5毫米黑色字迹的签字笔书写，字体工整、笔迹清楚。3．请按照题号顺序在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、试题卷上答题无效。4．保持卡面清洁，不要折叠，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．--Whenwillyoucomehomefordinner?I’llprepareitforyou.--Don’t________it.I’lleatoutwithmyfriends.A．careabout B．worryabout C．botherabout D．talkabout2．—Wouldyoulikemetheradioabit?—No,it’sallright.I’musedwiththeradio.A．toturndown;towork;on B．turningdown;toworking;onC．turningdown;toworking;off D．toturndown;toworking;on3．Frommypointofview,there’slittlechancethatwewillbesuccessfulintryingtochangethepresentsituation.________,itisimportantthatwetryourbest.A．Meanwhile B．OtherwiseC．Therefore D．Nevertheless4．—Howisthetestthatyoutookyesterday?—Unfortunately,notevenoneofthehundredstudentswhotookthetest______passed.A．hasB．haveC．areD．is5．________________theheavyrain，thecouplewenttothesupermarkettobuytheirsonagift.A．Inspiteof B．ExceptforC．Butfor D．Insteadof6．Inordertomakemycompositionclearerandsmoother,myteacheraskedmeto_________theunnecessarywordsandsentences.A．leavealone B．leavebehindC．leaveoff D．leaveout7．Criticizedasonlinegamesare,theyneverfailto______alargenumberofteenagers．A．appealto B．objectto C．referto D．turnto8．________ahighpercentageofAustraliansmaybepeoplewhowatchsportsratherthandothem,asfarasmostofitspopulationisconcerned,itisindeedagreatsportingnation.A．While B．as C．If D．Whether9．Onlywhen_________hard__________makeyourdreamcometrue.A．doyouwork;youcan B．youwork;youcanC．doyouwork;canyou D．youwork;canyou10．Privatecarswillberequiredtostayoffroadsoneoutoffiveweekdays____thetrafficpressure.A．toreduce B．reducing C．reduced D．reduce11．Theautofactory______newprofitrecordsthroughtechnicalinnovation—10%growthrateinthelasttwoyearsandhopefully15%thisyear.A．setB．hassetC．issettingD．hasbeensetting12．ThebeautifulmountainvillagewespentourholidaylastyearislocatedinisnowpartofGuangxi.A．which;where B．where;what C．that;what D．when;which13．Thisrawchocolatetastesprettydeliciousdueto______amountofmeltedpurefreshcream.A．equal B．generous C．insufficient D．tiny14．Touristsarerequiredto_________localcustomsandmindtheirmannerswhentravellingabroad.A．spot B．confirmC．observe D．spread15．Sheisquite________toofficework.Youhadbetterofferhersomesuggestionswhennecessary.A．familiar B．similarC．fresh D．sensitive16．_______youconsiderthattheairlinehandled80millionpassengerslastyear,theaccidentfiguresarereallyverysmall.A．UnlessB．WhenC．BeforeD．Though17．—IsPetercoming?—No,he____hismindafteraphonecallatthelastminute.A．changes B．changedC．waschanging D．hadchanged18．Shewasina________conditionafterthehearttransplantoperationwhenherbodyrejectedtheforeignorgan.A．skeptical B．critical C．theoretical D．practical19．Wewerescaredtodeathwhenthefire______.Fortunately,itwasputoutbeforeitcausedmuchdamage.A．brokeout​​ B．cameoutC．gaveout​​ D．turnedout20．Decadesago,scientistsbelievedthathowthebraindevelopswhenyouareakid______determinesyourbrainstructurefortherestofyourlife.A．soonerorlater B．moreorless C．toandfrom D．upanddown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）Wanderingaroundtheairportterminal(航站楼),afterlearningmyflighthadbeendelayedfourhours,Iheardanannouncement,“IfanyonenearGaleA-4understandsanyArabic,pleasecometothegateimmediately.”IwentthereandsawanoldwomaninfulltraditionalPalestiniandresscryingonthefloor.Ayoungmanfromtheairportstaffaskedmetotalktohertofindoutwhatwasherproblem.Hesaidshestartedtocrywhenhearingtheannouncementabouttheflight.Ikneltdown,putmyarmsaroundherandaskedherwhatwaswrong.MyArabicwasn’tgoodenoughbutImanagedtogetmymeaningacross.Shesoonstoppedcryingandtoldmeshehadthoughttheflighthadbeencanceled.SheneededtobeinElPasoforanimportantmedicaltreatmentthenextday.Isaid,“You’llbefine.You’llgettherebutonlyafewhourslate.Whoisgoingtopickyouup?Let’scallhim.”Wecalledherson.IspoketohiminEnglish.ItoldhimIwouldstaywithhismothertillweboardedtheplane.Later,IcalledmydadwhoseArabicwasbetterandaskedhimtotalktoher.Shelookedmuchmorerelaxedwhiletalkingonthephone.Latershetookoutasackofhomemadecookiesstuffedwithdatesandnutsandofferedthemtoallthewomenatthegate:thetravelerfromArgentina,themomfromCalifornia,thelovelywomanfromLaredo.Everybodysmiledandacceptedhercookiestoeat.AndmynewbestfriendandIwereholdinghands,whiletheothersaroundusweretalkingwitheachotherwithdifferentaccents.Ialmostwantedtohugallthoseotherwomentoo.Ilookedaroundthatgateandthoughttomyself,“Thisissurelytheworldwanttolivein.”1、Whydidtheoldladycryattheairportterminalgate?A．Theplanewascanceled.B．Hermedicaltreatmentwascanceled.C．Shedidn’tknowwhichflighttotake.D．Shemisunderstoodtheannouncement.2、Itcanbeinferredthat________.A．theauthorwasPalestinianB．mostpassengerswerefromAmericaC．theauthor’sfirstlanguagewasEnglishD．theoldladyhadnevertravelledabroad3、Accordingtothepassage,welearnthattheauthorwas________.A．talkativeandactiveB．warm-heartedandhelpfulC．creativeandintelligentD．enthusiasticbutaggressive22．（8分）Thetimesarechanging.OnThursdayOctober13th,singer-songwriterBobDylanwasawardedtheNobelPrizeinLiterature,markingthefirsttimethehighly-eyed-onliteraryawardhasgonetosomeonewhoismainlyseenasamusician,andgivingrisetoheateddiscussions.The75-year-oldwontheprize“forhavingcreatednewpoeticexpressionswithinthegreatAmericansongtradition”,theSwedishAcademysaid.“For54yearshehasbeenatit,reinventinghimself,”saidSaraDanius,theacademy’spermanentsecretary.“BobDylanwritespoetryforthecar.Butit’sperfectlyfinetoreadhisworksaspoetry.”AndwhilemanyDylan’sfanshavefoundgreatdelightatthenews,othersonlineandintheliterarycommunityarecrosswiththeCommittee,sayingtheawardhasskippedoverfictionwritersforthesecondyear.NewYorkTimesBookRevieweditorPamelaPaulsaiditwasgoodnewsbutpointedouthowmany“deserving”noveliststhereare.DirectorMartinScorseseputoutastatementsayinghewas“overjoyed”thatDylanwasawardedtheprize.“Dylan’spoetry,hismusicalgenius,hasmeantsomuchtomepersonallyandtogenerationsofpeoplearoundtheworld,”Scorsesesaid.“Hisworkhasinfluencedandshapedculture,andhehasneverstoppedexploringandgrowingasanartist.TheNobelCommitteehasgivenDylanaformofrecognitionthatfitshisroleinourculture—inworldculture.”DylanwonaPulitzerPrizein2008forhis“greatinfluenceonpopularmusicandAmericanculture”.He’sthefirstAmericantowintheliteraryNobelsinceToniMorrisonin1993.1、WhydoesBobDylan’swinningtheNobelPrizecausehealeddiscussions?A．Hecreatedpoeticexpressions.B．Heisknownasamusician.C．Hereinventshimself.D．Heis75yearsold.2、WhichisclosestinmeaningtotheunderlinedpartinParagraph4?A．arethankfultoB．aresatisfiedwithC．areangrywithD．areworriedabout3、WhatcanweknowaboutDylanaccordingtoMartinScorsese?A．DylaninfluencesMartinalot.B．Dylanishappywiththeaward.C．Dylanisapoetratherthanamusician.D．Dylanbenefitsalotfromworldculture.4、Whatisthepassagemainlyabout?A．AbriefintroductiontoBobDylan.B．ThereasonforBobDylan’ssuccess.C．BobDylan’sinfluenceonAmericanculture.D．DifferentviewsonBobDylan’swinningtheNobelPrize.23．（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）CometotheAGSociety’sexpedition（探险）programandyouwillsurelygetuniqueexperiences!SWIMWITHTHEHUMPBACKS（座头鲸）OFTONGADarrenJewandhisteamareyourhostsforanunforgettableAGSocietyadventure,filledwithin-watermeetingswithhumpbackwhalesintheKingdomofTonga’sgroupofislands.WHO:DarrenJew’sunderwaterwhalesDATES:26September-4October2018COST:$5,450perpersonBOOKINGS:Call0756679413,emailreservations@whalesunderwater.comorvisitwhalesunderwater.com11-DAYKIMBERLEYCOASTALCRUISE（乘船游览）TheAGSocietyispartneringwithAPTtopresentanexcitingvoyagealongtheKimberleycoastline.ExpeditioncruisingofferstheeasiestwaytoexploretheKimberley.Guestsonthis11-dayvoyagewillgoashore,explorenaturalwonders,meettraditionalowners,seerockartandspotwildlife.WHO:APTDATES:6-16September2018COST:$13,395perpersonBOOKINGS”Visitkimberleywild.com.auLIGHTNINGRIDGEFOSSIL（化石）DIGTheAGSocietyoffersyouachancetohuntforfossils.Guidedbyexperts,you’llgotospeciallocations,seekingnewfossilsforthecollectionsoftheAustralianOpalCentre.Yourdiscoverieswillfurtherestablishthesemuseumcollectionsasaworld-classscientificandculturalresource.Therearealsoaseriesoflecturesonmininghistory,fossils,dinosaurhuntingandnewdinosaurs.WHO:TheAustralianOpalCentreDATES:20-25August2018COST:$2,200perperson,includingallactivitiesandlunchesanddinnersBOOKINGS:Call0427904587,emaildig@australianopalcentre.comorvisitaustralianopalcentre.comAGDEVILARKEXPEDITIONComeandjoinTimFaulknerforauniquehands-onexperiencewiththisTasmaniandevil（袋獾）feedingprograminthebeautifulBarringtonTopsofNSW.You’llgettoseeTasmaniandevilsupclosewhenyouhelpwithfeedingindividuals.Inadditiontoworkingwiththeanimals,there’llbeopportunitiestoexplorethearea’snaturaltreasuresandspotlocalwildlife.Don’tmissyourchancetogetinvolvedinthisimportantconservationeffort.WHO:DevilArkDATES:24-26November2018COST:$1,750perpersonBOOKINGS:Call0243408610,emailinfo@devilark.org.auorvisitdevilark.org.au268、IfyoujoininLIGHTNINGRIDGEFOSSILDIG,youcan______.A．gotoseeknewfossilsindividuallyB．learnsomethingaboutmininghistoryC．collecttheworld-classscientificfossilsD．becomeanexpertandgotospeciallocations1、WhatcanyoudoifyoutakepartinAGDEVILARKEXPEDITION?A．Helpprotectwildlife.B．Learnaboutdinosaurs.C．Watchhumpbackwhales.D．Enjoyanexcitingvoyage.2、Whichprogramwillyouchooseifyouwanttoenjoyrockart?A．AGDEVILARKEXPEDITION.B．LIGHTNINGRIDGEFOSSILDIG.C．11-DAYKIMBERLEYCOASTALCRUISE.D．SWIMWITHTHEHUMPBACKSOFTONGA．25．（10分）Tworecentstudieshavefoundthatpunishmentisnotthebestwaytoinfluencebehavior.Oneshowedthatadultsaremuchmorecooperativeiftheyworkinasystembasedonrewards.ResearchersatHarvardUniversityintheUnitedStatesandtheStockholmSchoolofEconomicsinSwedendidthestudy.TheyhadabouttwohundredcollegestudentsplayaversionofthegameknownasthePrisoner’sDilemma.Thegameisbasedonthetensionbetweentheinterestsofanindividualandagroup.Thestudentsplayedingroupsoffour.Eachplayercouldwinpointsforthegroup,sotheywouldallgainequally.Buteachplayercouldalsorewardorpunisheachoftheotherthreeplayers.HarvardresearcherDavidRandsaysthemostsuccessfulbehaviorprovedtobecooperation.Thegroupsthatrewardedthemostearnedabouttwiceasmuchinthegameasthegroupsthatrewardedtheleast.Andthemoreagrouppunisheditself,theloweritsearnings.ThestudyappearedlastmonthinthejournalScience.Theotherstudyinvolvedchildren.ItwaspresentedlastmonthinCaliforniaataconferenceonviolenceandabuse(虐待).Researchersusedintelligencetestsgiventotwogroups.Morethaneighthundredchildrenwereagedtwotofourthefirsttimetheyweretested.Morethansevenhundredchildrenwereagedfivetonine.Thetwogroupswereretestedfouryearslater,andthestudycomparedtheresultswiththefirsttest.Bothgroupscontainedchildrenwhoseparentsusedphysicalpunishmentandchildrenwhoseparentsdidnot.ThestudysaystheIQsoftheyoungerchildrenwhowerenotspankedwerefivepointshigherthanthosewhowere.Intheoldergroup,thedifferencewasalmostthreepoints.Themoretheyarespanked,theslowertheirmentaldevelopment.1、Whatdoweknowaboutthesecondstudy?A．Children'sIQshavemuchtodowithphysicalpunishment.B．Thestudyisaboutviolenceandcooperationofchildren.C．Thechildrentestedweredividedintogroupsoffour.D．Children'smentaldevelopmentonlyreliesontheirIQs.2、Whatdoestheunderlinedword“spanked”referto?A．punishedB．blamedC．testedD．praised3、Whatmightbethebesttitleforthetext?A．TheBestWaytoCorrectMisbehaviorB．PunishmentIstheBestWayofEducationC．CooperationIstheMostSuccessfulBehaviorD．PunishmentorReward:WhichWorksBetteronBehavior?4、WhichofthefollowingisTRUEaccordingtothepassage?A．Punishmentisthebestwaytoinfluencebadbehaviors.B．Theparticipantsinthefirststudyhavetherighttorewardorpunishothersinthegroup.C．theyoungerchildrenhaveahigherIQbecauseoftheirparents’educationallevel.D．Adultsaremuchmorecooperativethanchildren.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）Ispentlastsummervolunteeringatahospital.Onemorning,Iwascalledtoaroominwhichan1womanwasstaying.2shewantedtogotoanearbygiftshop,Igota(n)3andhelpedherintoit,headingfortheshop.Whenwegotthere,theshopwasn’t4yet.Itwasmerelya30-minutewaitsowewentovertothe5areaandIreadherbitsandpiecesofthenewspaperaloud.After30minutes,wewentintothegiftshop.Pushingheraround,Icouldseethe6onherfaceasshelookedateverything.Shehappilychosesomewindowdecorationsandthen7chocolates.Sheaskedmetopushher8thatdirection.Ihelpedher9allthedifferentchocolatearrangements.She10decidedonthreedifferentboxes.Asshewascheckingout,sheaskedthecashierfora11andaskedmetowritethenumbers1,2,and3ontheboxes.She12thatthenursesweretakingsuchgoodcareofher,soshe13chocolatesforeachofthethreeshiftsofnurses.ThemomentIwheeledherbackuptoherroom,shegavethe14shiftofnursestheirboxofchocolate,who15offeredsometomebeforetakingsomethemselves.Therewere16allaround.17hergenerosityandgettingtheopportunitytospendtimewithsomeonewhogotsomuchpleasurefromlifewasa18initself.Gratitudehasanamazingwayofbringingpeople19,especiallyinaplacewherehealthissohighly20.1、A．elderlyB．honestC．impatientD．independent2、A．WhileB．AslongasC．IncaseD．As3、A．wheelchairB．busC．taxiD．ambulance4、A．crowdedB．completeC．openD．close5、A．checkingB．dietingC．parkingD．waiting6、A．joyB．surpriseC．prideD．anxiety7、A．smeltB．spottedC．tastedD．purchased8、A．inB．toC．upD．at9、A．putawayB．handinC．lookthroughD．giveout10、A．properlyB．eventuallyC．graduallyD．hurriedly11、A．changeB．boxC．cardD．pen12、A．admittedB．suggestedC．explainedD．promised13、A．borrowedB．orderedC．madeD．bought14、A．nextB．presentC．previousD．night15、A．inturnB．bychanceC．onpurposeD．inadvance16、A．noisesB．greetingsC．smilesD．jokes17、A．WitnessingB．TakingadvantageofC．RepayingD．Searchingfor18、A．prizeB．giftC．riskD．story19、A．backB．upwardsC．togetherD．down20、A．respectedB．praisedC．admiredD．valued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）IfyougotoZhuguanlongvillageinFujianProvince,youwon'tmissatwo-floorlibrary.Itisthefirstlibrarythere,1．hasbeenopenforfreefor44years!Thecreatorisoneofits2．(village)—LiuShijiang.WhydidLiuopenthislibrary?Backin1974,Liu3．(finish)hisstudyinhighschool.Atthattime,villagerswouldaskhimtotellstories.Butitwasn'tlongbeforeLiu'sstoriesrunout.Besides,manyvillagersplayedmahjongandcardstokillthetime."HowcanIgivemyselfandothersahealthierpastime?"Liuasked4．(he).That'swhenhedecidedtobuysomebooks.Hesoldtheonlypigofhisfamilyfor200yuanandborrowedanother400yuan5．(buy)books,bookshelvesandchairs.Andoneofhisrooms6．(make)intoalibrary.As7．result,moreandmorevillagersgatheredtheretoreadbooks,suchasstorybooksorworksabouthowtogrowbettercrops.Overtheyears,Liumetwithmanykindsofdifficulties；,8．hehasbeenabletoovercomethemandkepthislibraryopen.Amongreaderstherearethebook-lovingstudentsandteachers."Itisthebusiesttimeforthelibrarywhenthechildrenareonwinterorsummerholidays,"saidLiu."Now,histwo-floorlibraryhasmorethan7,000booksandacomputer,aDVDrecorder;andKaraoke,9．(offer)moreentertainmentandlearningchoicestothevillagers."Ihavedevotedmypastyearstothelibrary,andIwillkeephercompanyinthefollowingyears,saidtheman,nowinhis10．(sixty).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。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。OnDecember10,IwasatagrocerystorebuycanningjarsforaprojectIwasworkingon、TheassistantaskmewhatIwasgoingtousethejarsfor,andItoldheraboutmyplantomakingbathsaltsforfriendsasholidaygifts、Shewasinterestingandaskedmetolethertoknowhowitturnedout、Idecidedtodobetter、AfewdaybeforeChristmas,IbroughthimagiftjarfullofthebathsaltsIhadmade、Shewasverysurprisedandhappythatshegavemehug、Thesmallactofkindnesscanrealmakeadifference、第二节书面表达（满分25分）29．（25分）假设你是某高中生李华.在学习了牛津高中英语模块二第二单元ReadingAnadventureinAfrica后，你班对主人公Toby是否有必要开展这样的冒险之旅进行了讨论。请根据下表所提供的信息给报社写一封信，客观地介绍讨论情况，并表达你的看法。有必要1、结识不同的人.经历不同的文化2、拓宽视野，丰富知识3、......你的观点......(至少2点)没必要1、耗时费钱2、干扰野生动物生活，破坏生态自然环境3、......注意:1、对所给要点逐一陈述.适当发挥，不要简单翻译。2、词数150左右。信的开头、结尾已经写好，不计入总词数。3、作文中不得提及有关考生个人身份的任何信息，如校名、人名等。4.参考词汇:horizonsn.视野、眼界Deareditor,I'mwritingtotellyouaboutthediscussionwe'verecentlyhadaboutwhetheritisnecessaryforTobytohaveanadventuretravellinginAfrica.Wedohavedifferentopinionsonthismatter.__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Yourssincerely,LiHua

参考答案第一部分（共20小题，每小题1.5分，满分30分）1、C2、D3、D4、A5、A6、D7、A8、A9、D10、A11、D12、B13、B14、C15、C16、B17、B18、B19、A20、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、D2、C3、B22、1、B2、C3、A4、D23、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.Beingexposedto