广东省深圳市龙岗区东升学校新高考冲刺押题（最后一卷）英语试卷及答案解析

广东省深圳市龙岗区东升学校新高考冲刺押题（最后一卷）英语试卷注意事项1．考生要认真填写考场号和座位序号。2．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。第一部分必须用2B铅笔作答；第二部分必须用黑色字迹的签字笔作答。3．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。第一部分（共20小题，每小题1.5分，满分30分）1．OnehundredandfifteenChinesecompanieshitthenewlyreleasedFortune500listfor2017,______anincreaseforthe14thstraightyear,domesticwebsitereportedonThursday.A．torealizeB．realizedC．realizingD．havingrealized2．ThebeautifulmountainvillagewespentourholidaylastyearislocatedinisnowpartofGuangxi.A．which;where B．where;what C．that;what D．when;which3．Thenewswasaterribleblowtoher,butshe______theshocksoon．A．gotout B．gotover C．gotoff D．gotthrough4．Isawnomorethanonemotorcarintheshop.Willyougoandbuy?No,I’dratherfindinothershops.A．it;oneB．one;itC．it;theoneD．theone;it5．Thenationalparkhasalargecollectionofwildlife,________frombutterfliestoelephants.A．torange B．rangeC．ranging D．ranged6．Ourcompanyisseekingforamanager,especially________withcreativityandimagination.A．theone B．eachC．one D．that7．We___havehurriedallthewaytotheairport—theflightwascalledoffbecauseofthefoggyweather.A．mustn’t B．couldn’t C．needn’t D．wouldn’t8．Thetwogirlsaregettingonverywellandshare_______witheachother.A．little B．much C．some D．none9．—You’vemadegreatprogressinyourEnglishstudy,haven’tyou?—Yes,butmuch.A．remainstodo B．isremainedtodoC．remainstobedone D．isremainedtobedone10．Theeducationalreformisnowunderwaythroughoutthecountry,________thestudentsmoreopportunitiestodeveloptotheirgreatestpotential.A．tograntB．havinggrantedC．grantingD．granted11．—Didn’tyougofishingwithyourfriendslastSunday?—No.I______tothenursinghomeasusual.A．went B．go C．havegone D．hadgone12．Hewassatisfiedwiththeresult,wasn'the?No.Itwassodifficultthathe__________havepassedit.A．shouldn't B．mustn'tC．couldn't D．wouldn't13．TheBrownsheld_______theycalled“familyday”onceeachyear.A．that B．what C．which D．when14．Undergoodtreatment,manypatientsarebeginningto________andwillsoonrecover.A．turnupB．catchupC．pickupD．showup15．Iwouldappreciateyoucouldcometomybirthdayparty.A．that B．thatit C．if D．itif16．—Let’sgotothecinemathisSundaymorning.—I’dloveto，butI________asavolunteerinmycommunitythen.A．willwork B．haveworkedC．willbeworking D．wasworking17．Don’tworry.Anumberofeffortsarebeingmade______thewholesystemoperatingnormally.A．beingkept B．keptC．keeping D．tokeep18．Theydohaveadifferenttotheproblemofoverpopulation．A．solutionB．opinionC．decisionD．conclusion19．TheBritishgovernmentpublishedanofficialpolicydocument________itsplanstobringtheUKoutoftheEuropeanUnion.A．lettingoutB．puttingoutC．settingoutD．workingout20．Willyoube_____________thisevening，Mary？Thatdepends.IamafraidIwillbewithmymanager，discussingaplan.A．convenient B．suitableC．available D．efficient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）Youcan’tseeyoursleepingpetsbrainwaves,butitsbehaviorcantellyouwhenyourcatmightbedreaming.Ifyouwatchclosely,you’llseethatasshefallsasleep,herbreathingbecomesslowandregularwithherbodystill.Shehasenteredthefirststageofsleep,calledslow-wavesleep.Afterabout15minutesyou’llnoticeachangeinherbreathing.Hereyesmoveunderherclosedlids,herpawstwitch(抽动)andsheflicks(尤指用手指或手快速地轻抚)anear.Shehasentereddreaming.Althoughshetwitchesandmakeslittlegrunting(嘟嘟)noises,messagesfromherbraintothelargemusclesinherlegsareblocked,soshecan’trunabout.Sheisinastateof“sleepparalysis(麻痹)”.MichelJouvet,aFrenchscientist,interruptedtheirsleepparalysis.Eventhoughtheywerecompletelyasleep,thedreamingcatsbegantorunforballsthatJouvetcouldn’tseeandarched(弓起)theirbacksatunseenenemies.Hefigureshewaswatchingthemactouttheirdreams!Obviously,thedreamingcatsseemedtobepractisingimportantcatskills:following,pouncing(猛扑),andfighting.Inanotherstudy,MattWilsonrecordedratsbrainwaveswhiletheylearnedmazes(迷宫).Oneday,heleftthebrain-wave-recordingmachineonwhiletheratsfellasleep.ThepatternofbrainwavesinthesleepingratsmatchedthepatternfromthemazesocloselythatWilsoncouldfigureoutexactlywhichpartofthemazeeachratwasdreamingabout!Manyresearchersnowthinkthatinbothpeopleandanimals,onepurposeofdreamsistopractiseimportantskillsandfigureoutrecentlearning.Thismayexplainwhysomanypeopledreamaboutfightingandescaping,skillsthatwereprobablyimportanttoourancestors,andwhydreamingaffectsourabilitytolearn.Doallanimalsdream?Fromlookingatthebrainwavesofsleepinganimals.Howoftenanimalsdreamseemstobetiedtobodysize.Catsdreamaboutevery15minutes,miceevery9minutes,andelephantsevery2hours.Andthoughcowsandhorsesusuallysleepstandingup,theyonlydreamwhenlyingdown.1、WhatdoesMichelJouvetfindinhisstudy?A．Thedreamingcatsareinastateofbodyparalysis.B．Thedreamingcatsoftenpractisetheirimportantskills.C．Theeyesofdreamingcatsmovedwhilebodiesarestill.D．Themusclesofthedreamingcatsareblockedtomove.2、Whatcanyouknowaboutdreamingfromthepassage?A．Dreamingalotcanhelphumanslearnmore.B．Learningmazesisthebasicskillforcatstolearn.C．RatsoftendreamstomakecertaintheirrecentlearningD．Fightingandescapingarenotimportantskillsforancestors.3、Whichanimalmaydreammostfrequently?A．Rats. B．Dogs.C．Cows. D．Elephants4、Howdoestheauthordevelophispassage?A．Bymakingcomparisons. B．ByusingfiguresC．Bytellingstories D．Byshowingfacts22．（8分）Whenwasthelasttimeyoutoldsomeonetheyinspireyoutogotoworkeachmorning?TeachersatOakParkHighSchoolinKansasCity,Missouri,didjustthatthisSeptember,whentheypulledindividualstudentsoutofclasstotellthemjusthowmuchtheyappreciatedthem.Thestudents’reactions,whichwerecaptured(捕捉)onvideoandsharedonYouTubeinanow-viralvideo,rangedfromshythankstohugsandtears.“Ihavebeenchallengedtofindastudentwhomakesmewanttocometoschooleveryday,”saysoneteacherinthevideo,“andthat’syou.”JamieMcSparin,ateacherinchargeoftheschool’sacademyprogramforat-risksophomores（二年级学生）andjuniors,posedthechallenge,writesABCNews.“Initiallywhenwepulledthekidsout,theyallthoughttheywereintrouble,”McSparintoldABCNews.“Anyteacher-studentinteractionalwaysseemstobenegative(消极的),andthatwassomethingthatbotheredme,too.Nomatterifthey’reagoodkidoratroublemakeroranything,theyalwaysthoughttheywereintrouble,”shesays.McSparinsaysshegottheideafortheprojectafterattendingaprofessionaldevelopmentworkshopthissummercalledthepowerofpositivity.“Iliketheideaoflettingstudentsknowtheyareappreciated,becausewedoappreciatethem,Ijustdon’tthinkwesayitenough,”shetoldlocalnewsoutletWDAF-TV.It’ssafetosaythechallengewaseffective.“Ifeelspecial,”saidoneoftheboysinthevideo.“Youshould,”saidhisteacher.“Youarespecial.”1、Whatdoestheunderlinedword“posed”inParagraph5mean?A．Presented.B．Rejected.C．Ignored.D．Evaluated.2、Howdidthestudentsprobablyfeelwhenpulledoutoftheclassroomatfirst?A．Nervous.B．Thrilled.C．Curious.D．Encouraged.3、WhatinspiredMcSparintochallengetheproject?A．Thetroublecausedbystudents.B．Theneedofshootingthevideo.C．Aseminarnamedthepowerofpositivity.D．Aprogramrelatedtostudents’interactions.4、Whatmessagedoesthistextmainlyconvey?A．Challengeisunavoidableinlife.B．Everyoneneedstobeappreciated.C．Positivityoutweighsnegativity.D．Newsmediacontributetostudents’progress.23．（8分）Oneofthemainpointsoftravelingistorelaxandtakeabreakfromyournormaldailylife.Butthetruthis,we’renotalwaysfreetodowhatwelikewhentravelingtoaforeigncountry,andaUStouristlearnedthatthehardway.OnAug12,theunnamed41-year-oldmanwasbeatenbyapasserbyafterhewasseengivingNazisalutes(纳粹礼)againandagainonastreetinDresden,Germany.EversincetheendofWorldWarⅡ,GermanyhasstrictlawsforbiddingtheNazisalute,aswellasothersymbolsofNazism.Infact,mostcountrieshavetheirowntaboos(禁忌).Ifyouplantotraveloverseas,it’sbesttogetfamiliarwiththesetaboosbeforeyoustarttouringlocalsites.Herearesomeexamples.SingaporeYoucangetfinedforalotofthingsinSingapore,includingfeedingbirds,spitting(吐痰),smokinginpublic,notflushing(冲)apublictoiletafteryouuseit,andeatingordrinkingonbusesortrains.JapanYou’renotsupposedtowearyourshoesinsomeone’shouse,butyou’renotsupposedtotakeyourshoesoffoutsidethehouseeither.Instead,there’sasmallareainsidethedoorcalleda“genkan”whichiswhereyourshoesshouldgo.Ifyou’restillnotsurewherethatis,payattentiontowhatotherpeopledoanddothesame.FranceFrenchpeopledon’tlikeitwhenyoutalkaboutmoney.It’sOKifyousaythatyouwanttoquitajobbecauseyouaren’tpaidenoughmoney,butyoushouldneversaytheexactamount.Moneyisconsideredtobea“dirty”topicinFrance.1、WhywastheUStouristwasbeateninGermany?A．Hewasbeatenbymistake.B．HewasnotwelcomeinGermany.C．HeactedimproperlyinGermany.D．Hequarraledwithalocalperson.2、Whichstatementistrueaccordingtothepassage?A．EatingordrinkingonbusesisacceptableinSingapore.B．YoushouldtakeyourshoesoffoutsidethehouseinaJapanesehouse.C．YoushouldkeepyourshoesoninaJapanesehouse.D．ItisimpolitetoaskaFranceman’ssalary.3、Whichcolumnisthispassagemostlikelytobetakenfrominanewspaper?A．CampusLifeB．DiscoveryC．ScienceStudyD．StarStories24．（8分）Itwas2012,andsomewhereonacassava(木暑)andbananafarminruralTanzania,therewerefourofusstandinginacircle:me,twofarmersnamedJoyceandElijah,andtheformersecretarygeneraloftheUnitedNations，KofiAnnan.ElijahandJoycedidmostofthetalking.Theytoldushowthisfarmwasunlikeanytheyhadworkedon;howtherewereimprovedcropvarietiesandnewtoolstoprocesstheharvest.Therewasevenadaycarecentrenearthefarm.Thisway,womencouldspendmoretimesellingwhattheygrew*Irattledoff(不假思索地说出)somequestions.Doyousellyourcassavaonlyhere一ordoyoushipitsomewhereelse?Howfaristhemarket?Haveyouseenadifferenceinyouryields?Kofi,though,mostlylistened.Later,afterweleftthefieldsandwalkedtowardsthedaycarecentrewheretherewasabiggercrowd,Kofistartedtalking.Hewastellingjokes,tryingtoputeveryoneatease,anddoingaverygoodjobofit.Themanhadthedeepest,mostinfectiouslaughI’veeverheardandanincrediblycommandingvoice.Hesoundedlikeanactorplayinghimself.KofiandIhadattendedalotofthesameUNevents,andhe’dvisitedourfoundation’sofficesinSeattleafewtimes,soI’dseenhimcharmaroombefore.Butthisdayonthecassavafarmwasdifferent.Hewascompletelyathomehere.IsupposeIshouldn’thavebeensurprised:KofiAnnan,ofalltheworldleadersIhadmet,hadspentthemosttimethinkingabouthowtohelpplaceslikethisfarmandpeoplelikeJoyceandElijah.WhenmyhusbandBillandIstartedourfoundationin2000，westillhadsomanyquestionsaboutthebestwaystofightpovertyanddisease,andKofi,itseemed,alreadyhadtheanswers.Thatyear,he’dwrittenamanifesto(宣目)abouttheUN’sroleinthe21stcentury.Initsfinalpages,he’dincludedasetoftargetsaroundpovertyanddiseasereductionthathewantedtheworldtoachieveby2015.ThesebecameknownastheMillenniumDevelopmentGoals(MDG),andatfirst,criticsdismissedthemimmediately.Cutextremepovertyinhalf?StopthespreadofHIV,malariaandTB,thethreegreatestkillersinpoorcountries?Atbest,itwasoverlyoptimistic.Kofiwasn’tsatisfiedwithjustsettingthegoals,though.Hewantedtopushtheworldtoachievethem.NoothersecretarygeneralwassoabletoconnecttheUN’sheartwithitsbrain,itsmissiontoliftupthesickandthepoorwithaneffectiveplanfordoingso.Hewasamaster，too,atbringingworldleadersalongfortheride.Today,thereare27millionpeoplealivewhowouldhaveotherwisediedfromHIV-relatedillness,TBormalariaAndtheylive,inlargepart,becauseKofigatheredtheworldtoestablishtheGlobalFund,whichpaysformedicinesandthingsthatpreventthosediseasesfromspreading,suchasmosquitonets.Theworldmetitsgoalofhalvingtheglobalpovertyrateby2015;infact,itdidsofiveyearsaheadofschedule,in2010.“Developmentexperts，”oneobserverwrote,“arestillrubbingtheireyes.WhenhereceivedtheNobelPeacePrizein2001，Kofisaidthat“today’srealbordersarenotbetweennations,butbetweenthepowerfulandpowerless”.HesawAfrica’ssmallfarmersaspartofthelattercampandwantedtogivethemawaytoliftthemselvesoutofpoverty.Thiswaswhatledustothatcassavafarmbackin2012.Irememberthatafterourvisitthatday,Kofithankedmeforthefoundation’swork.Hewasgenerousinhispraise，andthenhegavemeanickname.“MamaMelinda，’’hecalledme.Itwasatermofrespect,typicallygiventoanelder,andIfelthonoredbutsurprised.MamaMelinda?Iftherewasonepersonwhodeservedsuchanhonour,Ithoughtitwasn’tme.1、KofiAnnan’sinspectionofthefarmismentionedto.A．introducethecarefreelifestyleofAfricanpeopleB．illustratehiscloserelationshipwithAfricanfarmersC．emphasizethegravityofpovertyinAfricancountriesD．showhisconcernforthepoverty-reliefworkinAfrica2、WecanknowfromthepassagethattheMDG.A．failedtowinsupportfromleadersoftheworldB．wastooambitiousandoptimistictobesuccessfulC．focusedmoreonthegoalsthaneffectivemeasuresD．revealedKofi’sextraordinarywisdomandcapability3、WhatcanweinferfromtheunderlinedpartinPara.7?A．Itwashardtoseewherethehopelay.B．ThesuccessoftheMDGwasunbelievable.C．Thedevelopmentexpertsweremovedtotears.D．Thelong-termcommitmentmadepeoplesleepy.4、WecanlearnfromKofi’swordsinPara.8that.A．thepowerfulpeopleruleoverthepowerlessmassesB．thepowerfulnationsoftenoccupytheirpowerlessneighborsC．thegapbetweentherichandthepoorseparatestheworldapartD．therichandthepoorcountriesshouldcompromiseonborderissues5、WhichofthefollowingcanbeusedtodescribeKofiAnnan?A．Charming,aggressiveandstubborn. B．Ambitious,easy-goinganddutiful.C．Conservative,humorousandpositive. D．Bureaucratic,sympatheticandgenerous.6、What’sthebesttitleforthepassage?A．MamaMelinda:anicknamewithgreathonour.B．TheUN:anorganizationfullofdifferentvoices.C．Africa:alandblessedwithconsiderableopportunities.D．KofiAnnan:astatesmandevotedtoglobaldevelopment.25．（10分）SmartKidsFestivalEventsSmartKidsisacollectionofonehundredeventsscheduledinOctober.Thisyear,itisexperimentingwithPayWhatYouDecide(PWYD).Thatis,youcandecidetopaywhatyouwanttoorcanafford,afteryouhaveattendedanevent.Youcanpre-bookeventswithoutpayingforaticketinadvance.Herearesomeofthedirector’spicks.WalkontheWildSideNotticketed,FreeJoinstorytellerSarahLawtohearsciencestoriesaboutanimals.Alongthewayyou’llmeetallsortsofbeautifulcreaturesanddiscoverlifecyclesandfoodchains.Bestsuitedtochildrenaged5-9.Childrenunder8mustbeaccompaniedbyanadult.IntroductiontoWavesPre-book,PWYDSubjectsrangefromsoundwavestogravitywaves,andfromwavesoflighttocrashingwavesontheocean.MikeGoldsmithexploresthefundamentalfeaturessharedbyallwavesinthenaturalworld.ScienceintheFieldNotticketed,FreeThisstorytellingnightfeaturesascientistsharinghisfavouritememoriesofgatheringfirst-handdataonvariousfieldtrips.Comealongforinspiringandinformativestoriesstraightfromthescientist’smouth.JoinMarkSamuelstofindoutmoreinthisfun-filledworkshop.FestivalDinnerPre-book,£25perpersonWhetheryouwanttoexploremoreaboutfood,orjustfancyatalkoverameal,joinustomarkthefirstsciencefestivalinLondon.Whichfoodsshouldyoueattotrickyourbrainintothinkingthatyouarefull?FindoutmorefromTomCrawford.1、Inwhicheventcanyoudecidethepayment?A．WalkontheWildSideB．IntroductiontoWavesC．ScienceintheFieldD．FestivalDinner2、Whowilltalkaboutexperiencesofcollectingdirectdata?A．SarahLaw.B．MikeGoldsmith.C．MarkSamuels.D．TomCrawford.3、Whatdothefoureventshaveincommon?A．Family-based.B．Science-themed.C．Pickedbychildren.D．Filledwithadventures.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）Ibelieveitisinmynaturetodancebyvirtueofthebeatofmyheart,thepulseofmybloodandthemusicinmymind.SoIdance1.Mydiningroomisnowa2ballroom.EachmorningwhenI3thehouseonthewaytomakecoffee,Iturnonthe4,andit'sdancetime!Idancealonetowhateverisplaying.Tango(探戈)isarecententhusiasm.It'sacomplexand5dance.ThefirsttimeIwenttangodancingIwastoo6togetoutonthefloor.7,Istayedonedgeofthedancefloorwhenthedancingbegan.Thefancyfootwork8me.“Don'tmakeafoolofyourself.Just9it.”Ithought.10mymind,anolderwomandroppedoutofthe11,satdownbesideme,andsaidshehadasecretforme.She12,“Ifyoudonotjointhedancing,wewillknowyouareafool.Butifyoudance,wewillthinkwellofyoufor13”Inspiredbyher14words,Itookupthe15oftango.AfriendaskedmeifIwasalittletoo16.“Tango?Atyourage?Youmustbeoutofyourmind!"Onthecontrary,it’sadeeplyconsidered17Iseekthesharp,scary18thatcomesfrombeginningsomethingnew,which19allmyresourcesandchallengesmybodyandmind.So,whenpeoplesay,“Tango?Atyourage?”I20answer,“Yes!”1、A．crazilyB．skillfullyC．dailyD．casually2、A．privateB．formalC．temporaryD．grand3、A．passbyB．walkthroughC．cleanD．leave4、A．lightB．tapC．heatD．music5、A．dangerousB．terribleC．difficultD．dull6、A．scaredB．excitedC．foolishD．proud7、A．OtherwiseB．StillC．InsteadD．Anyhow8、A．amazedB．disappointedC．comfortedD．confused9、A．watchB．finishC．joinD．stop10、A．OccupyingB．ReadingC．OverlookingD．Entering11、A．classB．showC．danceD．conversation12、A．arguedB．admittedC．declaredD．whispered13、A．tryingB．waitingC．comingD．sharing14、A．bitterB．braveC．wiseD．familiar15、A．talkB．challengeC．taskD．duty16、A．carefulB．humorousC．practicalD．ambitious17、A．decisionB．suggestionC．beliefD．answer18、A．securityB．pleasureC．freedomD．relief19、A．changesB．wastesC．savesD．requires20、A．roughlyB．simplyC．politelyD．possibly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）Peeling（削皮）vegetablescanbethe1．boringpartofanymealasyouspendextraminutes2．preptime.Andwhenyou'redoe,you3．(leave)withapileofunusableskins4．usuallyendupinthegarbagecan.Butaccordingtohealthexperts,whatwethrowawayisactuallyoneofthehealthiest5．(part)ofourfoods.DailyMailOnlinespoketoMaryJaneDetroyer,aregistereddietitianandnutritionistbasedinNewYork,about6．weshouldn'tbepeelingourvegetablesandallthehiddenbenefits7．(find)intheskins.AccordingtoDetroyer,thereareseveralreasonstobeleavingtheskinson,andthemainreasoniswhatyoudeprive（使丧失）yourbodyofwhenyoupeel8．off.Theskinsofproducelikepotatoes,carrots,andcucumbersallhaveplentyofhealthbenefits."Theskinshavealotoffiberandit'sinsoluble（不溶性）fiber,especially9．theskinsarecolorful,"DetroyertoldDailyMailOnline.“Mostofthetime,10．majorityofthevegetable'snutrientsareintheskins.”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。Iwillsharewithyouatruestoryhappenedacoupleofdaysago．Oneofmyclassmateboughtabagofsnacksfromafoodstore．Afewroommatesweretheninvitedtoenjoysnacks．Unluckily,allofthemgotpoisonedandhadstomachacheswithourfacespale．Theyarequicklysenttoanearbyhospital．Doctorsexaminedthembutgavethemsomemedicine．Theywereoutofdangersoonbeforetakingthemedicine．Thisaccidentshouldmakeustorealizetheseriousnessofthefoodsafetyproblem．Istrongsuggestthatthewholesocietypaysmoreattentiontofoodsafety．第二节书面表达（满分25分）29．（25分）假如你是新华中学的学生李华，班里从外地转来一名同学李明，他一时无法融入新的班级，感到很苦恼。请根据以下要点给他写封信。1.帮他分析原因；2.给他提出建议；3.陈述你帮助他的具体打算。_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

参考答案第一部分（共20小题，每小题1.5分，满分30分）1、C2、B3、B4、A5、C6、C7、C8、B9、C10、C11、A12、C13、B14、C15、D16、C17、D18、A19、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、B2、C3、A4、D22、1、A2、A3、