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()1John___cometoseeustonight,butheisn'tverysureyet.A.mayB.canC.hastoD.Must2They___dowellintheexam.A.canbeabletoB.beabletoC.canabletoD.areableto3—MayItakethisbookout?—No,you___.A.can'tB.maynotC.needn'tD.aren't4You___goandseeadoctoratoncebecauseyou'regotafever.A.canB.mustC.dareD.would5—CanyouspeakJapanese?—No,I____.A.mustn'tB.can'tC.needn'tD.maynot1.–He___beintheclassroom,Ithink—No,he___beintheclassroom.Isawhimgohomeaminuteago.A.can;maynotB.must;maynotC.may;can'tD.may;mustn't2—ShallIgetonemorecakeforyou,Dad?—Thanks,butyou___,I'vehadenough.A.maynotB.mustnotC.can'tD.needn't3Eventhetopstudentsinourclasscan'tworkoutthisproblem,soitbeverydifficult.A.mayB.mustC.canD.need4Heisn'tatschool.Ithinkhe___beill.A.canB.shallC.mustD.hasto5___Itakethisone?A.MayB.WillC.AreD.Do1Thechildren___playfootballontheroad.A.can'tB.canC.mustn'tD.must2You___belateforschoolagainnexttime.A.mustn'tB.needn'tC.don'thavetoD.don'tneedto3—MustIdomyhomeworkatonce?—No,you___.A.needn'tB.mustn'tC.can'tD.maynot1Hisarmisallright.He___goandseethedoctor.A.hasnottoB.don'thavetoC.haven'ttoD.doesn'thaveto2Hehadtogiveuptheplan,___he?A.didB.didn'tC.doesD.doesn't3Theyhadtowalkhere,___they?A.mustn'tB.didC.didn'tD.hadn't1Hehadbetterstayhere,___he?A.doesn'tB.don'tC.hadn'tD.isn't2You'dbetter___latenexttime.A.nottobeB.notbeC.won'tbeD.don'tbe3You'dbetter___yourhair___onceamonth.A.had;cutB.had;cuttedC.have;cutD.have;cutted4You___askthatmanoverthere.Maybeheknowstheway.A.hadbetternottoB.hadnotbetterC.hadbetterD.hadbetternot1—ShallwegoandvisittheHistoryMuseumnextSunday?—________A.HereyouareB.Sorry,Ican'tC.Yes,pleaseD.Letmetry2—Whydon'tyouaskMiketogowithus?—Thanks,___.A.IwillB.Iwon'tC.leanD.Imay3—___Itakethenewspaperaway?—No,youmustn't.You____readitonlyhere.A.Must;canB.May;canC.Need;mustD.Must;must1Excuseme.___youpleasepassmethatcup?A.DoB.ShouldC.WouldD.Must2___youliketohaveanothertry?A.CouldB.WillC.WouldD.Do3—Wouldyouliketogoboatingwithus?—Yes,___.A.I'dlikeB.IwantC.I'dliketoD.Ido1You___worryaboutyourson.Hewillgetwellsoon.A.needn'tB.can'tC.mustn'tD.haveto2Thepoormanneedsourhelp,___he?A.needB.needn'tC.doesD.doesn't3—Mustwedoourhomeworkfirst?—No,you___.Youmayhavearestfirst.A.mustn'tB.needn'tC.maynotD.can't1.ItoldSallyhowtogethere,butperhapsI_______forher.A.hadtowriteitoutB.musthavewrittenitoutC.shouldhavewrittenitoutD.oughttowriteitout2.—Therewerealreadyfivepeopleinthecarbuttheymanagedtotakemeaswell.—It_______acomfortablejourney.A.can’tbeB.shouldn’tbeC.mustn’thavebeenD.couldn’thavebeen3.It’snearlyseveno’clock.Jack_______behereatanymoment.A.mustB.NeedC.shouldD.can4.Johnny,you_______playwiththeknife,you_______hurtyourself.A.won’t;can’tB.mustn’t;mayC.shouldn’t;mustD.can’t;shouldn’t5.Thefirespreadthroughthehotelveryquicklybuteveryone_______getout.A.hadtoB.wouldC.couldD.wasableto6.—WhencanIcomeforthephotos?Ineedthemtomorrowafternoon.—They_______bereadyby12:00.A.canB.shouldC.mightD.need7.—IstayedatahotelwhileinNewYork.—Oh,didyou?You_______withBarbara.A.couldhavestayedB.couldstayC.wouldstayD.musthavestayed8.—AreyoucomingtoJeff’sparty?—I’mnotsure.I_______gototheconcertinstead.A.mustB.wouldC.shouldD.might9.Iwasreallyanxiousaboutyou.You_______homewithoutaword.A.mustn’tleaveB.shouldn’thaveleftC.couldn’thaveleftD.needn’tleave10.—IsJohncomingbytrain?—Heshould,buthe_______not.Helikesdrivinghiscar.A.mustB.canC.needD.may11.Aleft-luggageofficeisaplacewherebags_____beleftforashorttime,especiallyatarailwaystation.A.shouldB.canC.mustD.will12.Iwonderhowhe_______thattotheteacher.A.daretosayB.daresayingC.notdaresayD.daredsay13.Whenhewasthere,he___gotothatcoffeeshopatthecornerafterworkeveryday.A.wouldB.shouldC.hadbetterD.might14.Ithasbeenannouncedthatcandidates_____remainintheirseatsuntilallthepapershavebeencollected.A.canB.willC.mayD.shall15.How______ousaythatyoureallyunderstandthewholestoryifyouhavecoveredonlyapartofthearticle?A.canB.mustC.needD.may16.—Ihearyou’vegotasetofvaluableAustraliancoin._______Ihavealook?—Yes,certainly.A.DoB.MayC.ShallD.Should【巧学活用参考答案】1.1-5ADABB2.1-5CDBCA3.1-3CAA4.1-3DBC5.1-4CBCC6.1-3BAB7.1-3CCC8.1-3ADB情态动词练习参考答案1.C。―oughtto/shouldhave+过去分词‖表示后悔当初该做但却没做某事。―…也许我本该把详细地址写给她的。‖2.D。―couldn’thave+过去分词‖表示对过去情况的推测。既然小汽车上―已有五人‖，且是―设法‖才把你带去的，如此拥挤，旅途当然―不可能‖舒服。3.C。nearly暗示―时间不早了‖，Jack―按理应当(should)随时(atanymoment)‖都有可能到达这里。must语气过强；can一般不用于肯定推测；need意义不通，也不用于肯定句。4.B。mustn’t(不许、千万不)表示禁止。may表示可能性。句意为―你千万不要玩刀子，可能会弄伤自己的‖。5.D。表示过去具体某次―能够‖做成某事只能用was/wereableto而不用could。6.B。should表示按理应当，大概。can一般不用于肯定推测；用might语气太不肯定，顾客可能走掉。7.A。couldhavedone表示本可以做但却没有做的事。句意为―你本来可以住在Barbara那儿的‖；而musthavedone只表示有把握的肯定推测，这与前面具有疑问语气的Oh,didyou?不符。8.D。语境明显提示―我可能(might)要去听音乐会‖。9.B。表示轻微的责备，句意为―我真的好担心你啊。你当时本不该不说一声就离开家的‖。10.D。由―他自己喜欢开车‖这一习惯推断，―他可能不会(maynot)坐火车来‖。cannot―不可能‖，语气太肯定。11.B。can表示―可以‖。should(应该),must(必须),will(愿意)均不符合语境。12.D。dare作行为动词时,一般接todo，但疑问式或否定式中to可以省略，此句有疑问口气。13.A。would表示过去的习惯。14.D。在规章中告诫应考者，在收完所有试卷前―必须‖留在教室里。15.A。can在疑问句中，表示疑惑、怀疑，根据情况可译作―能、可以‖等。16.B。may表示请求对方允许，即：―我可以做…吗?‖