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语法知识—情态动词的知识点总复习附解析

一、选择题1.It is 11:00 p.m now. Peter hasn't come back yet. His mother ______ be very mad at him. A.may B.can C.must D.need 2.—Have you heard about the temperature of the earth will rise to 59℃ in 2020?—Don’t worry! The news _______ be true.A.must not B.may not C.needn’t D.will not 3.-Listen! A wolf is crying!-It _______ be a wolf, because a wolf never comes out at this time.A.mustn’t B.needn’t C.can’t D.don’t4.I’ve bought a nice necklace for Jo’s birthday. She _____like it, but I’m not sure. A.can B.may be C.might D.must5.---Mum, must I finish my homework today?---No, you . Tomorrow is Sunday and you may have a rest today.A.shouldn’t B.mustn’t C.can’t D.don’t have to 6.You look quite tired. You'd better ________ a good rest.A.stop to have B.stop having C.to stop to have D.to stop having 7.—Tom, we’re going shopping at eight, right?—Yeah, but I ______ be a little late, so don’t wait for me.A.may B.should C.mustn’t8.You should________ the teacher________being late for school.A.apology to, about B.apologize to, forC.apologies to, for D.apologize to, on9.—Can you come to my party on Saturday afternoon?—Sorry, I can’t. I ________ meet my friends.A.can’t B.might have to C.needn’t10.— I wonder if these are Jim's glasses.—They _____his. He doesn't wear glasses.A.might be B.could be C.can't be11.—The book report is very important. You ________ write it carefully.—But I ________ hand it in now.A.must; must B.have to; mustC.must; have to D.have to; have to12.Even the top student can't work out this problem, so it________ be too difficult. A.must B.may C.can D.need 13.—________ I borrow the books from the library, Miss Yang?—Sorry, you________. These books are only for members of the English Club.A.Can; couldn’t B.Could; can’tC.Could; could n’t D.Can; needn’t14.—Could you please hang out with me this afternoon?—______. I have to make a plan for Clean-Up Day.A.Sorry, I couldn’t B.Sorry, I can’tC.Sure, I can D.Sure, I could15.—Must I go out to have dinner with you, Mum?—No, you , m y dear. You’re free to make your own decision.A.shouldn’t B.mustn’t C.needn’t D.can’t16.—I feel tired.—You ________ go to bed so late.A.must B.shouldn’t C.should17.Everyone______ be polite to their parents.A.could B.may C.should D.can 18.—Mum, I’ve signed for a big box by Future Express (快递). What’s in it?—I’m not sure. It ________be a present from your brother.A.need B.must C.may D.will19.(2017 • 湖北省宜昌市中考)—Life is becoming convenient with the Internet.—That’s true! Almost everything be done online.A.must B.would C.should D.can20.—Must I hand in my reports today?—No, you ________.A.mustn’t B.can’t C.shouldn’t D.don’t have to 21.My head teacher has made a set of rules to show what we students ________ and ________ not do in class.A.must; must B.will; willC.need; need D.might; might22.He like coffee. I see him drink a cup at times.A.must B.may C.can’t D.mustn’t【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【解析】句意:现在11点了,皮特还没有来,他的妈妈一定很生气了。

A. may也许; B. can可能;一般用于否定句; C. must一定;一般用于肯定句; D. need需要。

根据It is 11:00 p.m now.可知,表示对现在的推测,根据Peter hasn't come back yet. 可知,可推测妈妈一定生气了。

推测的可能性很大,故选C。

2.B解析:B【解析】【详解】句意:——你听说过2020年地球的温度将上升到59摄氏度吗?——不要担心。

那个消息可能不是真的。

考查情态动词。

must not禁止;may not可能不是。

needn’t不必;will not将不会。

根据“Don’t worry”可知,这里是这个消息可能不是真的,表示一种推测。

根据题意,故选B。

3.C解析:C【解析】【详解】句意:--听! 狼在叫! --它不可能是狼,因为狼从来不会在这个时候出来。

A. mustn’t禁止;B. needn’t没有必要;C. can’t不可能;D. don’t构成一般现在时的否定句。

根据“because a wolf never comes out at this time因为狼从来不会在这个时候出来”,可推断它不可能是狼,故选C。

【点睛】情态动词表推测的用法:can表示“可能”;can’t表示“不可能”;may表示“可能”,must表示“一定”,注意mustn’t表示“禁止”不表示推测,表示否定推测要用can’t.4.C解析:C【解析】【详解】句意:乔的生日我给她买了一条漂亮的项链。

她可能会喜欢,但是我不确定。

考查情态动词表示推测。

can表示能、可以;may表示可能,might是其过去式;must表示一定、必须。

根据题干中but I'm not sure.可知可能性较小的推测,则可用may或者might,B项中may后有系动词be,原句中有动词like,则只能用might。

故选C。

5.D解析:D【解析】【分析】【详解】句意:——妈妈,我今天必须完成作业吗?——不,你不必这么做。

明天是星期天,你今天可以休息一下。

考查情态动词辨析。

A. shouldn’t不应该,表建议;B. mustn’t一定不,表禁止;C. can’t不能,表示不允许;D. don’t have to不必,指没有必要。

回答must引起的一般疑问句,如果要作否定回答,一般是用needn’t(不能用mustn’t)或not have to。

根据句意语境,可知选D。

6.A解析:A【解析】【详解】句意:你看起来相当累,你最好停下来好好休息。

短语stop doing sth.表示“停止做某事”;stop to do sth.表示“停下来去做某事”。

根据“You look quite tired.”可知下文是停下来去休息;You'd better+动词原形,表示“你最好做某事”;根据题意,故选A。

7.A解析:A【解析】【详解】句意:——Tom,我们8点将会去购物,对么?——是的,但是我可能会晚一点,所以不要等我。

考查情态动词词义辨析。

A. may可能;B. should应该;C. mustn’t禁止。

根据句意可知是可能会晚到。

故选A。

8.B解析:B【解析】【详解】句意:你应该因为上学迟到向老师道歉。

本题考查动词短语。

apology道歉,是名词;apologize道歉,是动词;about关于,for为了,on在……上面。

apologize to sb for sth“因为某事向某人道歉”,位于情态动词should 后,用动词原形,故选B。

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