(易错题精选)初中英语语法知识—情态动词的技巧及练习题附答案解析(2)
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一、选择题
1.(2017·甘肃白银·10)—I wonder if these are Danny's glasses.
—They________be Danny's. He doesn't wear glasses.
A.can't B.must C.mustn't D.can
2.Look at the sign! It says “No Smoking!” You ________ smoke here. It’s dangerous.
A.mustn’t B.ought not to C.needn’t D.don’t have to
3.You have finished most of the work, so you ____ start working so early tomorrow. You may
come at 9 :00.
A.can't B.mustn't C.needn't D.couldn't
4.— Do you think it is safe to shop online?
— I think so. On Taobao, customers return goods with no questions asked,but they ______
pay delivery costs.
A.can’t; can B.must; must C.can; have to D.mustn’t; can
5.I hope you __________ to my birthday party.
A.to come B.can come C.comes D.are come
6.—Is Wendy in the classroom now?
—I’m not sure. She ________ be there. I saw her in the library ten minutes ago.
A.may not B.must not C.shall not D.would not
7.The designer has tried every possible way to make the robot light, so you _____ worry about
its weight.
A.must B.may C.can’t D.needn’t
8.—Is that cap Bob’s?
—No, it ________ be his. His is blue.
A.can’t B.mustn’t C.needn’t D.may not
9.The milk tastes bad. You’d better_______.
A.throw it away B.to throw it away
C.throw them away D.to throw them away
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 be
11.—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
12.I’m sorry, children over 1.4 meters________pay the full price for the show.
A.may B.must C.can D.ought to
13.— Must I finish the homework now?
— .You can do it later.
A.No, you needn’t B.Yes, you must C.No, you can’t
14.-_________ you help me with my homework?
-Of course if I __________.
A.Could; could B.Can't; can C.Could; can D.Can; could
15.—The food ________be delicious . You ate it up .
—You bet . My mum cooked it for me .
A.must B.may C.can D.need
16.— Will Jim come to Yangzhou for a holiday?
— He ________come, it depends on how much homework he will have.
A.may B.should C.must D.need
17.–Is Mike coming to the fashion show tomorrow?
--I’m not sure. He ______ not come.
A.must B.can C.may D.should
18.—Is Wilson on duty in class today?
—It________be him. It's his turn tomorrow.
A.must B.can't C.should D.needn't
19.Even the top student can't work out this problem, so it________ be too difficult.
A.must B.may C.can D.need
20.— Could you play the piano when you were 8 years old?
— ________.
A.Yes, I could B.No, I can’t C.Yes, I can D.No, I won’t
21.-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
22.You should________ the teacher________being late for school.
A.apology to, about B.apologize to, for
C.apologies to, for D.apologize to, on
【参考答案】***试卷处理标记,请不要删除
一、选择题
1.A
解析:A
【解析】
句意:----我想知道这些是丹尼的眼镜吗?-----他们不可能是丹尼的。他不戴眼镜。考查情态动词表推测。否定推测用can’t/couldn’t;肯定推测用must, may, might, must意思是“一定、准是”,语气较肯定,较有把握。may, might表示推测“可能性”时,意思是“可能”、“也许”,语气没有 must肯定。mustn't的意思禁止做某事。根据下文He doesn't wear glasses.
(他不戴眼镜。)可以推测这副眼镜不是丹尼的;结合句意和语境可知选A。
2.A
解析:A
【解析】
【分析】
【详解】
句意:看这个标志!上面写道“禁止吸烟!“你不能抽烟。这是危险的。mustn’t 禁止,不允许;ought not to不应该,不应当;needn’t不必;don’t have to不必。根据“No Smoking!”可知此处禁止吸烟,所以选A。
3.C
解析:C
【解析】
【详解】
句意:你已经完成了大部分工作,所以你明天不必这么早就开始工作。你可以9点来。
本题考查情态动词。can't不可能,mustn’t禁止,needn’t不必,couldn’t可能不。根据You
have finished most of the work可知,你已经完成了大部分工作,因此明天不必这么早就开始工作,因此用needn’t,故选C。
4.C
解析:C
【解析】
【详解】
句意:——你认为网上购物安全么?——我觉得是的。淘宝上,消费者可以无理由退货,但是他们要承担运费。
考查情态动词辨析。A. can’t; can不能,能;B. must; must必须,必须;C. can; have to可以,不得不;D. mustn’t; can禁止,能。根据句意表示的是顾客能退货,是可以,第一空用can;但是不得不承担运费,非主观情愿用have to。故选C。
5.B
解析:B
【解析】
【分析】
考点:考查动词。
【详解】
试题分析:句意:我希望你能来参加我的生日聚会。hope to do sth希望做某事;hope that从句,希望……。但不能说hope sb to do sth;从句主语you,所以谓语动词不能用comes单数形式;come是实意动词,前面不能用are;所以选B。
6.A
解析:A
【解析】
【详解】
句意:—温迪现在在教室吗?—我不确定。她可能不在那里,十分钟前我在图书馆见过她。
考查情态动词表推测。may not可能不;must not一定不要;shall not将不会;would not将要、会、就会,表示虚拟、假设、条件等。根据回答句“I’m not sure”,可推测后句应该是说:她可能不在那里。是对现在情况的推测,may not“可能不”。故选A。
7.D
解析:D
【解析】
【分析】
【详解】
句意:设计者已经尝试了所有可能的方法使机器变轻,所以你不必担心它的重量。must必须;一定;may可以;可能;can’t不能;不可能;needn’t不必,没有必要。根据句意The
designer has tried every possible way to make the robot light可知,设计者在努力使机器变轻,所以担心是没有必要的。故应选D。
8.A
解析:A
【解析】
【详解】
句意:——那顶帽子是Bob的吗?——不,那不可能是他的。他的是蓝色的。
考查情态动词表推测。can’t 不可能,否定推测;mustn’t 禁止,不表推测;needn’t 不需要;may not 可能不是,表不确定的推测。根据回答“No”和“His is blue.”可知这里说话者表达完全否定推测,故选A。
【点睛】
在情态动词表推测时,很多同学会搞混can’t和mustn’t,认为他们都表示完全否定的推测,在做题时容易误选。can’t 不可能,表示完全否定的推测,但是mustn’t 禁止,并不用于表推测。
9.A
解析:A
【解析】
【详解】
句意:牛奶味道不好。你最好把它扔掉。