人教版必修三Unit-2语法专题练习-情态动词

Ⅰ.选词填空

1．You mustn’t go there alone; it’s too dangerous.(mustn’t/needn’t)

2．It’s so near; we shouldn’t have taken a taxi.(shouldn’t/can’t)

3．You oughtn’t_to have spent so much time playing computer games.(mustn’t/oughtn’t to)

4．—Shall I leave the room so that you two can talk?

—No, you needn’t．(mustn’t/needn’t)

5．He can’t have missed the train；he arrived at the train station two hours early.(can’t/mustn’t)

6．We’ll be very glad if you can join us in going camping.(can/may)

7．They had_to stay in the office last night because of the snowstorm.(have to/must) 8．We should have helped him; in that case, he would have been able to finish the work.(should/can)

Ⅱ.单项填空

1．— I think we’ll give Bob a ring.

— We ________.We have been out of touch with him for ages.

A．will B．may

C．have to D．ought to

解析：选D。后句句意：我们应该给他打个电话。我们很长时间没跟他联系了。ought to“应该”；will “意愿”；may “可以；可能”；have to“不得不”。根据句意，D正确。

2．— Write to me when you get home.

— ________.

A．I must B．I will

C．I should D．I can

解析：选B。答应某人做某事，要用I will表示“一定”或“我决心做某事”。根据对话的语境，B项正确。

3．— Susan doesn’t mind lending you her digital camera.

— She ________.I’ve already borrowed one.

A．can’t B．mustn’t

C．needn’t D．shouldn’t

解析：选C。既然“我已经借了一个”，所以“她就没有必要借给我了”。needn’t在此表示“不必”。C项正确。

4．— James, how did your English exam go?

— I thought I ________，but in fact I came in the top 10 in the class.

A．should have failed B．couldn’t have failed

C．might have failed D．mustn’t have failed

解析：选C。“might＋have＋done”表示对已经发生的事情的一种猜测，根据语境，C项正确。

5．— What does the sign over there read?

—“No person ________ smoke or carry a lighted cigarette, cigar or pipe in this area.”

A．will B．may

C．shall D．must

解析：选C。shall用于第二、三人称的陈述句，表示说话人给对方的命令、警告等。根据句意，C项正确。

6．You can’t imagine such a well-educated gentleman ________ be so rude to an old man.

A．might B．must

C．should D．would

解析：选C。句意：你难以想象一个受过良好教育的绅士居然对一位老人那么粗鲁。should在这里表示惊讶或出乎意料。

7．There was a lot of fun at yesterday’s party. You ________ come, but why didn’t you?

A．must have B．should

C．need have D．ought to have

解析：选D。句意：昨天的聚会很有趣。你应该来的，但为什么没来呢？ought to have done“本应该做(而没有做)”，D项符合题意。

8．— What do you think we can do for our aged parents?

— Y ou ________ do anything except to be with them.

A．don’t have to B．oughtn’t to

C．mustn’t D．can’t

解析：选A。句意：“你认为我们能为年迈的父母做点什么呢？”“除了多陪陪他们不

必做什么。”don’t have to相当于needn’t，意为“不必”符合句意。oughtn’t“不应该”；mustn’t“不可以”；can’t“不能”。

9．As it turned out to be a small house party, we ________ so formally.

A．needn’t dress up

B．shouldn’t dress up

C．were not necessary to dress up

D．needn’t have dressed up

解析：选D。由句意可知，事实上，我们穿得很正式去参加了一个家庭舞会，但参加了才知道是一个small house party，感觉自己没有必要穿得如此正式。needn’t have done “过去本不需要做某事(但实际上做了)”，D项符合句意。

10．— As you worked late yesterday, you ________ work this morning.

— Thank you!

A．needn’t B．mayn’t

C．can’t D．mustn’t

解析：选A。句意：“昨天你工作到很晚，所以今天上午你不必工作。”“谢谢！”needn’t do sth.“不必做某事”，符合句意。mustn’t“禁止做某事”。

11．—May I take this book out of the reading room?

—No, you________.You read it in here.

A．mightn’t B．won’t

C．needn’t D．mustn’t

解析：选D。句意：“我可以把这本书带出阅览室吗？”“不，千万不要。在这儿读吧。”由句意可知此处表示强烈禁止，mustn’t“千万别/不要”，表禁止，所以选D项。mightn’t 表示“可能不”；won’t表示“不愿意”；needn’t表示“没必要”。

12．She________have left school, for her bike is still here.

A．can’t B．wouldn’t

C．shouldn’t D．needn’t

解析：选A。句意：她不可能离开了学校，因为她的自行车仍然在这儿。can’t have done“不可能做某事”；wouldn’t have done表示虚拟；shouldn’t have done“本不该做(却