情态动词专题复习

情态动词专题复习

初中常用情态动词原形过去式词义cancould能;会；可能maymight可以；可能must必须；一定Should应该need需要考点一：情态动词在一般疑问句中的回答1、—Canyousing?

—Yes,Ican./No,Ican’t.2、—MayIsmokehere?—Yes,youmay./No,youcan’t/mustn’t

“禁止,不准”。3、—MustIhandinmyhomeworktoday?

—

Yes,youmust./No,youneedn’t/don’thaveto.4、—NeedIfinishitnow?—Yes,youmust./No,youneedn’t●以must引导的一般疑问句其否定回答不能用mustn’t而要用needn’t或don’thaveto.●以may引导的一般疑问句其否定回答用mustn’t或can’t.●以need引导的一般疑问句其肯定回答用must考点二：情态动词表推测肯定推测must“一定是，肯定是”（把握大）may“也许，可能”（把握不大）否定推测can’t“不可能是”Eg:—Thegirlinred______beJenny.Sheoftenwearsaredskirttoschool.―No,it______beJenny.Imetherinthelibraryjustnow

must

can’t1.—Whoistheboyoverthere?IsitJohn?—No,it________behim.Johnismuchtaller.mustn’tB.maynotC.can’tD.needn’t2.John________cometoseeustonight,butheisn’tverysureyet.mayB.canC.hastoD.must3.AlicehasbeeninChinaforseveralyears.She____beabiggirl.A.mayB.canC.hastoD.must1.must&haveto区别haveto主要表示客观需要,意为“不得不”。有人称和时态的变化(hasto;hadto;willhaveto)must强调说话人的主观看法,

意为“必须;应该”考点三：易混情态动词辨析Herbikeisbroken.Soshehastotakethebustowork.2.can&beableto区别表示某种能力时,二者可通用can只用于现在时和过去时(could),beableto可用于各种时态3.maybe&maybemaybe用于句首表示“可能;也许”,相当于perhapsmaybe用于句中MaybetheboyisfromCanada.=TheboymaybefromCanada.那个男孩可能来自加拿大。其它考点：1.hadbetterdosth./hadbetternotdosth.2.Need做情态动词用于否定句，疑问句。

做实义动词后接动词不定式Eg:Youneedn’tworryaboutyourson.Heneedstoseeadoctor.3.含情态动词的被动语态：情态动词+be+动词过去分词Eg:Manystarscan’tbeseenbecausetheyarefar

awayfromus┃专项训练┃()1.—IsthatgirlinredSally?—No,it________her.ShehasgonetoHongKong.A.maybe

B.mustbeC.can'tbe()2.—Ican'tstopplayingcomputergames.—Foryoureyes,myboy,I'mafraidyou________.A.can

B.may

C.haveto

CC()3.________Sheknowtheanswer,butI’mnotsure.A.MaybeB.maybeC.mayD.must()4..—IsthatgirlSusan?—It

beher.SheleftforBeijingyesterday.A.needn’t

B.can’t

C.mustn’t

AB()5.—MustIdomyhomeworknow,mom?—________.Youcandoittomorrow.A.No,youneedn'tB.No,youmustn't C.Yes,youneedD.Yes,youmust()6.—________TomspeakJapanese?—Yes,hehaslearntitinTokyoforthreeyears.A.ShouldB.MustC.CanD.MayAC()7.—CanIwalkacrosstheroadnow,mom?—No,you________.Youhavetowaituntilthelightturnsgreen.A.couldn'tB.shouldn'tC.mustn'tD.need't()8.—________Ifinishthehomeworkthisafternoon?—No,youneedn't.It________beforeFriday.A.Can;canfinishB.Must;mustfinishC.Must;canbefinishedD.Can;mustbefinishedCC

()9.—________Iaskyouaquestion?—Sure.A.MayB.WouldC.Do()10.Lucy________readstorybookattheageoffour.A.isabletoB.wasabletoC.shouldD.wouldAB

()11Theflowers_________everyday,ortheywilldieA.mustwaterB.mustbewateredC.canbewaterD.shouldwater()12.—Lucy,howareyoufeelingnow?—Iammuchbetter,Mum.Soyou

takemetoseethedoctor.A.can’t B.mustn’t C.needn’t D.couldn’tBC()13.Youshould______bookwhenyouwalk.Itbadforyoureyes.A.notreadB.nottoreadC.don’t()14.Youlooktirednow.You_____stayathomeandhavearest.