英语情态动词的用法大全含解析
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英语情态动词的用法大全含解析
一、初中英语情态动词
1.—We've got everything ready for the picnic.
—Do you mean I __________ bring anything with me?
A. can't
B. mustn't
C. couldn't
D. needn't
【答案】 D
【解析】【分析】句意:—我们已经为野餐准备好了一切。—你的意思是我不必带任何东西吗?A. can't 不能;B. mustn't 表示禁止,一定不要;C. couldn't不能,表示过去时态;D. needn't不必。结合句意,故选D。
【点评】本题考查情态动词的用法。
2.All passengers ______ go through safety check before they take a plane.
A. can
B. may
C. must
D. could
【答案】 C
【解析】【分析】句意:所有乘客登机前必须接受安全检查。A. can能够,表示能力;B. may可以,表示许可;C. must必须;D. could可能,可以。登机前必须安检。故选C。【点评】情态动词词义辨析。以及can、may、must、could四个词的词义和用法。
3.We __________ pay to get into the concert. It's free.
A. can't
B. mustn't
C. might not
D. don't have to
【答案】 D
【解析】【分析】句意:我们进入音乐会不必付钱。这是免费的。A.can"t 不可能; B. mustn"t 禁止; C.might not 可能不;D. don"t have to不必。根据It's free.可知音乐会是免费的,因此不必付钱。故选D。
4.—Where is George?
—He _______ be here just now. His coffee is still warm.
A. need
B. can't
C. must
D. shouldn't
【答案】 C
【解析】【分析】句意:——乔治在哪里?——他刚才一定在这里,他的咖啡还是热的。A. need需要; B. can't 不能,不可能(表示推测); C. must 必须,一定(表示推测); D. shouldn't不应该;根据His coffee is still warm.可知表示肯定推测一定在这儿;故答案为C。
【点评】考查情态动词。掌握情态动词表推测时的意义和用法。
5.— __________I wear a tie to Janet's birthday party?
— No,you needn't. But do remember to bring her a present.
A. Must
B. Should
C. Need
D. Can
【答案】 A
【解析】【分析】句意:——我必须戴领带去参加Jane的生日聚会吗?——不,你不必,但是记住给她带个礼物。对于must的否定回答是用needn't。而should应该;need需要;can可以。所以根据回答可知选A。
【点评】考查情态动词的基本用法。
6.Please don't make so much noise. I ________ hear the speaker very well.
A. needn't
B. can't
C. shouldn't
D. mustn't
【答案】 B
【解析】【分析】句意:请不要发出那么多噪音。我不能很好地听清楚发言者的话。needn't不必;can't不能;shouldn't不应该;mustn't禁止。根据前半句的Please don't make so much noise.可知别人发出了太多噪音,所以他无法听见演讲者的话,故用情态动词can't。故选B。
【点评】考查情态动词,结合句意和词义做出判断。
7.—Life is becoming convenient with the Internet.
—That's true! Almost everything ______ be done online.
A. must
B. could
C. should
D. can't
【答案】 B
【解析】【分析】句意:——生活正随着网络变得方便。——那是真的。几乎所有的事情可以在网上完成。A必须,B可以,C将,D不能。根据 Life is becoming convenient with the Internet. 生活正随着网络变得方便,可知应该是很多事情可以在网上完成,故选B。
【点评】考查情态动词。注意理解和掌握情态动词的不同用法。
8.Look at the sign! It says “No Smoking!” You ________ smoke here. It's dange rous.
A. mustn't
B. ought not to
C. needn't
D. don't have to
【答案】 A
【解析】【分析】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。
A.mustn't 禁止,不允许;
B.ought not to不应该,不应当;
C.needn't不必;
D.don't have to 不必。根据“No Smoking!”可知此处禁止吸烟,故答案为A。
【点评】考查情态动词。掌握情态动词的意义和用法。
9.—Where is Mom now?
—I'm not sure. She _________ be in the kitchen.
A. shall
B. may
C. need
D. must
【答案】 B