湖南省长沙市麓山国际学校人教版英语九年级英语复习 情态动词 素材

5/5情态动词情态动词数量不多,但用途广泛,初中考点主要有：can(could),may(might),must,need,shall(should),will(would)。情态动词的特征：情态动词本身有词义但不能单独作谓语,情态动词+行为动词原形一起构成谓语。情态动词不受主语的人称和数的限制,不随人称和数的改变。情态动词后可直接+not构成否认,可放于句首构成一般疑问。1．can和could的用法can(could)表示=1\*GB3①“能力〞、Icanplaytheguitar.=2\*GB3②“许可〞youcangonow.=3\*GB3③“可能性〞Lucymaybehere.等。could为can的过去式。=4\*GB3④表示请求时,could比can更婉转〔属于现在时态范围〕。如：CanIuseyourbike？我可以用你的自行车吗？[注意]can和could只能用于现在时和过去时两种时态,将来时中用beableto,beableto所用的时态比can、could广。另外can't可表示否认推测“不可能〞。如：That______beMrWang.HehasgonetoBeijing.那肯定不是王老师,他已经去北京了。2．may和might的用法may(might)意为=1\*GB3①“可以〞,表示说话人同意、许可或请求对方许可MayIuseyourpen?,=2\*GB3②也可表示祝愿。Maygodblessyou!=3\*GB3③may表允许用于肯定句中Youmaygonow.may的否认式为maynot。might是may的过去式,有两种用法：一种表示过去式；一种表示虚拟语气,使语气更加委婉、客气,或表示可能性更小。如：______Iuseyourpen?我可以用你的钢笔吗？Youmayputonmoreclothes.你可以多穿衣服。Mayyoubehappy.祝你开心。MightIborrowsomemoneynow?我现在可以借点钱吗？Hemightbealive.他可能还活着。May和might表推测,比拟小的不太有把握的推测。用于肯定句中。Hemaycometomorrow,butI’mnotsure.注意：may构成的一般疑问句防止用yes,youmay.以免显得不客气。MayIgonow?_Yes,please./Pleasedon’t./否认No,youcan’t.3．must的用法must=1\*GB3①意为“必须,应该,一定,准是〞,表示说话人认为有必要做某事,命令、要求别人做某事以及对事物的推测。must用于一般现在时和一般将来时,过去式可用haveto的过去式代替。如：I______finishmyworktoday.我今天必须完成我的工作。=2\*GB3②否认式mustn’t表“严禁、禁止〞含义。Youmustn'tdriveafterdrinking.你绝不能酒后驾车。(1)must和haveto的区别：must表示说话人的主观意愿；haveto表示客观需要haveto的否认形式和疑问式要借助助动词do。如：Imustdomyhomeworkfirst.我必须首先做家庭作业。Itisraininghardoutside;I______stayathome.外面雨下得很大,我不得不待在家里。(2)答复must的提问①肯定答复：Yes,…must.如：—MustIgohomenow?—Yes,youmust.“我必须现在回家吗？〞“是的,你必须。〞②否认答复：No,…needn't./No,…don't/doesn'thaveto.如：—MustIgohomenow？—No,you______________.“我必须现在回家吗？〞“不,没必要。〞(3)must可以表示肯定推测,意为“一定〞。比may的可能性大如：Themanmustbeourteacher.那个人一定是我们的老师。4．need的用法(1)need表示“需要,必须〞。主要用于否认句和疑问句中,否认形式为needn‘t,表示“没有必要,不必〞；need提问时,肯定答复用must,否认答复用needn’t。如：—Needwedosomecleaningnow?“我们必须现在大扫除吗？〞—Yes,youmust.“是的,你们必须。〞—No,youneedn‘t.“不,你们不必。〞(2)need还可当做实义动词使用,这时常用结构为needsth/needtodosth。常用于肯定句中。否认形式和疑问式要借助助动词do的形式。如：Ineedtolearnmore.我需要学习更多。5．shall和should的用法shall用于第一人称的句子中表示提建议或请求；(建议和请求为考点)should用于各种人称的句子中强调义务或责任“应该〞。如：______wegooutforawalk?我们出去散步好吗？(建议)Youshouldstudyhardatschool.你们在学校应该努力学习。(劝告)6．will和would的用法Will=1\*GB3①情态动词,用于第二人称疑问句时,表示征求意见或提建议。=2\*GB3②助动词构成一般将来时。would为will的过去式,可用于多种人称,=1\*GB3①表示意愿。如：Willyouhavealittlesoup?你要不要喝点汤？=2\*GB3②wouldyoulikesth/todosth?提出建议与请求。此外还有情态动词：hadbetter,oughtto,haveto等等。[归纳]情态动词表推测的用法(1)肯定句中一般用must(一定),may(可能),might/could(也许,或许),其中must表推测的语气最强,其余依次渐弱。如：Thebookmustbehers.Hernameisonit.这本书一定是她的,她的名字在上面。Hemustberunning.他一定是在跑步。Theymayknowthewaytothelibrary.他们可能知道去图书馆的路。(2)否认句中一般用can't/couldn't(不可能)。如：Thatmancan‘tbeMrLibecausehehasgonetoLondon.那个人不可能是李老师,因为他去伦敦了。(3)疑问句中用can/could(能)。如：—CantheredsweaterbeTom's?—No,itcan't.Hecan'tstandred.“这件红毛衣会是吉姆的吗？〞“不,不可能。他不能忍受红色。〞[注意]might,could并不是may,can的过去式,而是表示语气较委婉或可能性较小。=4\*GB2⑷情态动词+一般现在时/do表示对现在发生的事情的推测。如：Whosebookisthis?ItmustbelongtoLucy.它一定属于露西的。情态动词+进行时/bedoing表示对现在正在发生的事情的推测。如：Hemustbesleepingnow.现在他一定正在睡觉。情态动词+完成时havedone表示对已经〔过去〕发生的事情的推测。如：Ourclassroomisveryclean.Itmusthavebeencleanedyesterday.昨天它一定被清扫了。〔〕1.We_________usemobilephonewhentheplanetakeoff.maynotB.shouldn’tC.needn’tD.mustn’t〔〕2.--Excuseme.Canyoutellmewhattimeitisnow?--Sorry,I______.Mywatchdoesn’twork.A.can’tB.maynotC.mustn’tD.needn’t〔〕3.—IsthatKate’scar?—It_____behers.Shehasjustgoneforameeting.A.can’tB.shouldC.mustn’tD.may〔〕4.—Let’sgoclimbing,shallwe?—You______bejoking!Don’tyouknowI’mafraidofhighplaces?A.mayB.canC.mustD.should〔〕5.We______paytogetintotheconcert.It'sfree. A.can't B.mustn't C.mightnot D.don'thaveto〔〕6.Lookatthe“Noparking〞sign.You_____parkyourcarhere.A.should

B.must

C.needn’t

D.mustn’t〔〕7.—_____youcomewithmetoLangLang’spianoconcertthisevening?—I’dloveto,butIhavetostudyformymathtest.A.ShouldB.MayC.MustD.Can〔〕8,We_______bemorecareful,orwewillmakethesamemistakeintheexperiment.A.mightB.canC.mayD.should〔〕9.—MustIcomeat6:30tomorrowmorning?—No,youneedn't.You____comeonehourlater.A.canB.needC.shouldD.must〔〕10.—Mustwecleantheroomatonce?—No.you.Youcandoitafterschool.A.mustn’t B.needn’t C.can’t〔〕11.—Whatareyoudoingthisweekend?—I'mnotsure,butI______gotothemuseum.A.mightB.mustC.need.D.should()12.一Excuseme,mayIkeepthebookalittlelonger?一Sorry.You________returnittoday.A.mustB.mustn'tC.canD.can't()13.—I’dlikeapet,butIambusyallday.—Goldfishareagoodchoice,You_______feedthemeveryday.A．mustn’t B．can’t C．shouldn’t D．needn’t()14.—MayItakethismagazineoutofthereadingroom?—No,you____.Youreadinhere.A.mightn’tB.won’tC.needn’tD.mustn’t()15.—________Iknowbywhattimeyouwanttheprojecttobedone?—Bythedayaftertomorrow.________youfinishitonlime?A.May;CanB.Must;needC.Could;MustD.Need;Would()16.〔2019湖南长沙〕30.－Who’ssinginginthegarden?

－It____

beMr.Brown.Healwayspracticessingingatthistime.A.

must

B.can’t

C.need()17.一Whoseisthedictionary?一It________beAlice’s.Lookathernameonthecover.A.mustB.canC.may()18.27.Finishyourhomeworkfirst,thenyou’llsurftheInternetforhalfanhour.A.canB.needC.beabletoD.may()19.Thereagirlsingingnextdoor.Can’tyouhearherbeautifulvoice?A.mustbeB.musthaveC.can’tbeD.can’thave()20.Iforgottobringmydictionary.CouldIuseyours?Yes,you______.A.can B.must C.could D.should()21.4.—LifegetseasierwiththeInternet.—That'strue!Almosteverything_____bedoneonline.A.canB.needC.mustD.should()22.—Areyouinterestedinshoppingonline?——Notsomuch.We______ seerealproductsbutpictures.A.shouldn’t B.can’t C.mustn’t D.needn’t()23.–Bob,WhereisLinda?She_______beinthelibrary.ButIamnotsure.A.mustB.mayC.needD.hasto()24.—Lingling,canIuseyourdictionary?—Sure.Butyou______returnitafterclass.A.mustB.canC.mayD.would()25.People______waituntilthetrafficlightbecomesgreen.That’sthetrafficrule.A.mustB.can C.need D.may()26.—Lisa,hurryup!Thebusiscoming.—Oh,no.We____crossthestreetuntilthetrafficlightsturngreen.A.mustn’tB.needn’tC.should()27.30.Themanisfeelingmuchbetternow,soyou______calladoctor.A.needn’tB.can’tC.mustn’tD.shouldn’t()28.Ifyousmoke,pleasegooutside.A.canB.mayC.mustD.might()29.—Couldyoupleasehaveawalkwithme?—Sorry,I_______.Ihavesomethingimportanttodonow.A.mustn’tB.needn’tC.can’tD.maynot()30.Hereismyphonenumber.You______callmeanytimeyoulike.A.mustB.canC.shouldD.need()31.—_________youleavenow?Youonlyarrivedhereanhourago.一Sorry,butsomuchhomeworkiswaitingforme.May B.Must C.Can D.Might()32.Children_______sitinthefrontseatofacar.It’stoodangerous.A.needB.needn’tC.mustD.mustn’t()33.—MayIplaycomputergamesnow,Mom?—No.Youfinishyourhomeworkfirst.A.must B.can C.could D.may()34.—HowmanyEnglishwordsdoyouthinkIshouldknow?—Asmanyasyou______.Thenyouwillfindreadingquiteeasy.A.willB.mustC.canD.might()35.Acountryhasdreams.Weteenagers________alsohavedreams.Withdreamsandhardwork,anythingamazingcanbecreated. A.mayB.mustC.should()36.Youmustn’tgooffonyourown,becauseyou_______getlostinthemountains.A.should B.must C.need D.might()37.—Honey,stayhomebeforeIreturn.—I________,mum.A.mustB.canC.willD.should()38.—ShallItakemyswimmingsuit?—No,you.Wewilljustgohikinginthemountain.A.mustn’t B.couldn’t C.needn’t D.can’t()39._IseeyourIDcard,sir?Wehavetocheckyourinformation.A.MayB.MustC.ShouldD.NeedFinishyourhomeworkfirst,thenyou’ll_______watchTVforanhour.A.canB.beabletoC.ableDcould()40.—Ican’tstopplayingcomputergames.—Foryoureyes,myboy,I’mafraidyou_______.A.can B.may C.haveto()41.--________Ifinishthehomeworkthisafternoon.--No,youneedn’t.It________beforeFriday.A.Can;canfinishB.Must;mustfinishC.Must;canbefinishedD.Can;mustbefinished()42.Youhadbetter_____winebecauseyouhavetodrivebackhome.A.notdrinkB.don'tdrinkC.nottodrink()43.—Mom,_________Ihangoutwithmyfriendsnow?—Sure,butyou________cleanupyourbedroomfirst.A.can,needB.may,havetoC.must,needD.need,must()44.—Look!Themanatthegate______beourteacher.Heisalwaysstandingthereeverymorning.—N