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(易错题精选)初中英语语法知识—情态动词的难题汇编及解析

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.You run with the train when it is coming. It’s dangerous.A.may not B.mustn’t C.needn’t3.―I can't stop smoking, Doctor.―For your health, I'm afraid you .A.must B.can C.need D.have to 4.—Is that Kate’s green bike?—It ____________be hers. She likes pink.A.can’t B.could C.mustn’t D.might 5.—Can we walk across the road now?—No, we . We have to wait until the light turns green.A.couldn’t B.needn’t C.shouldn’t D.mustn’t 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.—______ you please tell me something about the life in Canada or America?—Sorry, I______. I don’t know either. I’m from Australia.A.Could; couldn’t B.Can; couldn’t C.Could; can’t D.Can; mustn’t 8.—Sorry, Ms Wang. I left my homework at home. Must I hand it in today?—No, you_______ . You_______ bring it here tomorrow.A.mustn’t; should B.needn’t; must C.mustn’t; may D.needn’t; can 9.— I would like________ to see a movie.—It’s too late. You’d better ________alone.A.to go, go B.go, not go C.to go, not go D.going, go 10.— 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.-Could you help me with my English homework, Nancy?-Of course I____________. Glad to help.A.could B.can C.must D.do12.-Mum, must I stay there the whole day?-No, you__________. You__________ come back after lunch, if you like.A.mustn’t; can B.needn’t; must C.needn’t; may 13.We _______ keep the new traffic law and learn how to protect ourselves.A.may B.should C.can D.need 14.—Jack must be in his office, I think.—No, he be in the office. He flew to Canada this morning.A.needn't B.shouldn't C.can't D.mustn't 15.—Must I start now?—No, you_______________.A.mustn't B.can't C.needn't D.must16.This book _____ Lucy’s. Look! Her name is on the book cover.A.must be B.may be C.can’t b e D.mustn’t be 17.— Must I go home? — No, you ________.A.can’t B.mustn’t C.don’t D.needn’t18.---I heard they went skating in the mountains last winter.---It ______ true because there was little snow there.A.may not be B.won’t be C.couldn’t be D.will be19.一Hurry up, Mark! Let's cross the road as quickly as possible.一No,you . Don't you see the light is still red?A.couldn't B.wouldn't C.mustn't D.needn't20.一Already five people in the taxi, but the driver managed to take me as well.一Terrible, and it be an uncomfortable journey.A.can B.should C.must D.need21.—We've prepared all kinds of foods for the picnic.—Do you mean I___ bring anything?A.can't B.needn't C.mustn't D.won't 22.—Can you come to my party on Saturday afternoon?—S orry, I can’t. I ________ meet my friends.A.can’t B.might have to C.needn’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:火车来的时候你不能跟它一起跑,这很危险。

考查情态动词。

may not可能不;mustn’t不能,表禁止;needn’t不需要。

根据“It’s dangerous”及语境可知,此处是表达“你不能跟着火车跑”,在这儿应是不允许,强烈的禁止的意思,故用mustn’t。

故选B。

3.D解析:D【解析】【详解】句意:——我不能戒烟,医生。

——为了你的健康,恐怕你得这么做。

考查情态动词辨析。

must必须,强调主观意愿;can能,表能力或许可;need需要,指有必要;have to必须,强调客观需要。

根据“For your health为了你的健康”,可知无论愿不愿意戒烟是健康所需,故选D。

4.A解析:A【解析】【详解】句意:—那是凯特的绿自行车吗?—那不可能是她的。

她喜欢粉色。

考查情态动词用法。

can’t不可能,不能;could能,构成过去式;mustn’t一定不要,表示禁止;might大概,可能。

根据后一句凯特喜欢粉色可知,表示不可能,用can’t,故选A。

5.D解析:D【解析】【分析】【详解】句意:-我们现在能过马路了吗?-不,我们不能,我们要等到交通灯变绿。

couldn’t不能;needn’t不需要,不必;shouldn’t不应该;mustn’t禁止,不要。

根据句意We have to wait until the light turns green可知,在红灯的时候是禁止过马路的,因此这里的语气比较强,故应选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.C解析:C【解析】【详解】句意:——你能告诉我一些在加拿大或者在美国的生活吗?——抱歉,我不知道,我来自澳大利亚。

could可以是can的过去式,但是在位于句首表示请求对方做某事的时候,表示礼貌而非过去时态。

can表示能力,表示能够做某事。

在空格一中,表示礼貌请求对方做某事,用could表示委婉语气;空格二中can’t表示回答者做不到,因为回答者来自澳大利亚而非加拿大或者美国。

故选C。

8.D解析:D【解析】【详解】句意:——抱歉,王老师,我把我的作业落在家里了,我今天必须上交吗?——不,你不需要,你可以明天把它带到这。

考查情态动词辨析;mustn’t表禁止;needn’t不需要;should应该;must必须;may可能;can能,可以,根据Must引导的一般疑问句,否定回答用needn’t,排除A和C,由语境可知,第二个空应该是你可以明天把它带到这,排除B,故选D。

9.C解析:C【解析】【详解】句意:——我想要去看电影。

——太晚了。

你最好不要独自一人去。

本题考查非谓语动词。

to go是动词不定式,go是动词原形,going是现在分词或动名词,would like to do sth想要做某事,因此第一空用to go。

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