【弯道超车】Unit 4 Digital life 核心语法之情态动词-2025年外研版(2024)新八年级英语上册精讲精练 (含答案解析)

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【弯道超车】Unit 4 Digital life 核心语法之情态动词-2025年外研版(2024)新八年级英语上册精讲精练 (含答案解析)

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/ 让学习更有效 新课备课备考 | 英语学科
2025年外研版(2024)新八年级英语上册精讲精练
Unit 4 Digital life
核心语法:情态动词
一、 什么是情态动词?
情态动词本身有一定的词义,但不能独立作谓语,必须和动词原形一起构成谓语,表示说话人的语气或情态,如:能力、可能性、许可、义务、建议、推测等。
常见情态动词: can, could, may, might, must, need, shall, should, will, would, have to, had better
二、 核心情态动词用法详解
1. can & could (能力、许可、可能性、请求)
功能 用法说明 例句
能力 表示现在或将来的能力。could 是 can 的过去式,表示过去的能力。 - I can speak a little English. (现在能力)
- She could swim when she was five. (过去能力)
许可 请求或给予许可。could 比 can 更委婉、礼貌。 - Can I use your pen (非正式请求)
- Could I open the window It's hot. (非常礼貌的请求)
- Yes, you can. (给予许可,回答时不能用 could)
可能性 表示理论上的或一般的可能性。 - Anything can happen. (任何事情都可能发生)
- It could rain later. (稍后可能会下雨,可能性较小)
请求 礼貌地请求别人做某事。could 比 can 更常用、更礼貌。 - Can you help me with my homework
- Could you pass me the salt, please
2. may & might (许可、可能性)
功能 用法说明 例句
许可 请求或给予许可,比 can/could 更正式、更礼貌。 - May I come in (非常正式的请求)
- Yes, you may. (正式的给予许可)
可能性 表示不确定的推测,might 的可能性比 may 更小。 - He may know the answer. (他可能知道答案)
- She might be at home now. (她也许在家,不确定)
3. must & have to (义务、必要性)
情态动词 用法区别 例句
must 主观义务:表示说话人认为“必须”做某事。
否定 mustn't:表示“禁止、不准”,语气强烈。 - I must finish my work today. (我觉得我必须完成)
- You mustn't play with fire. It's dangerous. (严禁玩火)
have to 客观需要:表示由于外部规则、法律、情况等而“不得不”做某事。
否定 don't have to:表示“不必”,相当于 needn't。 - We have to wear school uniforms on Monday. (校规要求)
- You don't have to come if you are busy. (你不必来)
4. should & had better (建议、义务)
情态动词 语气强度 用法说明 例句
should 较弱 提出建议或劝告,意为“应该”,表示一种责任或义务。 - You should eat more vegetables. (你应该多吃蔬菜)
- He should study harder. (他应该更努力学习)
had better 较强 提出强烈建议或警告,意为“最好…”,否则可能会有不好的后果。后接动词原形。 - You had better hurry up, or you'll be late. (你最好快点)
- It's cold outside. You 'd better put on a coat. ('d better 是缩写形式)
5. will & would (请求、意愿)
功能 用法说明 例句
请求 Will you... / Would you... 用于礼貌地请求别人做某事。Would 比 Will 更委婉。 - Will you please be quiet
- Would you mind closing the door
意愿 表示意愿或打算。will 用于现在,would 是过去式。 - I will help you with your project. (我愿意帮你)
- He said he would come. (他说过他愿意来)
6. need (需要)
词性 用法 例句
情态动词 常用于否定句和疑问句。否定:needn't (不必) - Need I finish it today (我今天需要完成吗?)
- No, you needn't. You can do it tomorrow. (不,你不必)
实义动词 可用于所有句型,后接 to do。 - Do you need to go now (你现在需要走吗?)
- He needs to see a doctor. (他需要看医生)
- You don't need to worry. (你不必担心)
三、 易混点辨析
1、can vs. be able to
can 只有现在和过去(could)两种形式。
表示将来或完成时的能力时,必须用 will be able to, have been able to。
例句:I hope I will be able to speak French fluently one day.
2、mustn't vs. don't have to
mustn't:禁止,千万不要 (It is forbidden.)
don't have to:不必 (It is not necessary.)
例句:
You mustn't tell anyone. It's a secret. (禁止告诉任何人)
You don't have to tell me if you don't want to. (可以不告诉我)
3、表“可能性”的程度
可能性从大到小:must (肯定) > will > would > should > can > could > may > might
1.Our students are having an exam. You_________ make so much noise.
A.won't B.mustn't C.may not D.needn't
2. —Is that Jim running on the playground
—It ____be him. He is always in the library at this time.
A.mustn't B.shouldn't C.can't D.needn't
3.——May I put my bag here
——No, you________. You should put it up on the shelf
A.needn't B.mustn't C.won't
4.Boys and girls, you ______ talk in class, or you will miss something important.
A.can't B.mustn't C.shouldn't D.needn't
5.— Peter doesn't mind lending you his camera.
— He ________. I've already borrowed one.
A.needn't B.can't C.mustn't D.shouldn't
6.— Mum, may I go swimming now
—Yes, dear, but remember that you___________go with your dad.
A.may B.can C.must
7.—Someone is knocking at the door. Is it Ann
—It ________ be her. She is giving a performance at the theatre now.
A.may B.must C.can't D.mustn't
8.— ________ you go to the mountain with me tomorrow, Jane
— Sorry. I ________ study for my history test.
A.Might; must B.Can; must C.Might; can D.Can; can
9.—Is that boy under the tree Li Ming
—No, it _______ be Li Ming. He is in Shanghai now.
A.can't B.mustn't
C.needn't D.won't
10.Many teenagers don't like to communicate with their parents because they believe that their parents ________ know them as well as their friends.
A.can't B.needn't C.mustn't
11. —Mom, I didn't sleep well last night and I'm so tired now.
—Oh, my poor baby, you ____ stay up late to play with your mobile phone.
A.needn't B.wouldn't C.shouldn't D.can't
12.— One more cup of tea
— No, thanks. I _______________ leave now. Mary is waiting for me.
A.might B.can C.may D.must
13.People ______ drive after drinking because it's dangerous.
A.can B.wouldn't C.mustn't
14.—Must I finish writing this article today
—No, you ________. You can do it tomorrow.
A.mustn't B.don't need C.don't have to D.needn't to
15.—What's wrong with Tom He has been absent for several days.
—I'm not sure. He be ill. Let's go and ask Ms White.
A.can B.must C.might D.should
16.You smoke. You are only 14 and it isn't allowed.
A.mustn't B.don't have to C.needn't D.won't
17.——Are you coming to Jeff's party
——I'm not sure. I _______ go to the concert instead
A.must B.would C.should D.might
18. We ____know something about the Youth Protection Law to protect ourselves.
A.can B.would C.may D.should
19.——No one_______ be compared with Messi in playing football.
——Oh, you are really his big fan.
A.might B.could C.must D.can
20. Life is like riding a bicycle. To keep your balance(平衡), you____ keep moving.
A.could B.could not C.should D.shouldn't
21.The river is too deep. You __________ be careful.
A.can B.may C.might D.must
22.— Who's that man in our classroom It ________ be Mr. Brown. He is much taller.
— You mean the man in white He is an exchange student from England.
A.can B.may C.can't D.mustn't
23.Rock music ______ sound popular with the young, but it's not the favor of the aged people.
A.must B.need C.should D.may
24.— Is that Tom
—No, it ______be Tom. He is in Japan now.
A.wouldn't B.may not C.mustn't D.can't
25.— I think we need to discuss the problem carefully.
— I______ agree more. Let's find a quiet place and have a talk.
A.could B.can't C.should D.shouldn't
26.—___________I finish my work now
—No, you___________. You can do it later.
A.May; needn't B.Must; don't have to C.Can; couldn't
27.You ______ smoke. You are only 14 and it isn't allowed.
A.mustn't B.don't have to C.needn't D.won't
28.——You look pretty in green, Kate. ——Thank you. I like green. Green ______give me energy.
A.can B.must C.should D.has to
29.Betty ________ be practising the piano now, because she'll give a performance at tomorrow's party.
A.must B.should C.can D.need
30.—_________ we keep the room clean enough all the time
—No, you _________.
A.Must; doesn't have B.Do; don't have to
C.Must; don't have to D.Must; mustn't
31.—_________ I take some photos in the hall, sir —No, you _________.
A.Can, needn't B.Must, mustn't C.Could, won't D.May, mustn't
32.— Mike, can you ride a bike
— No, but I ____ swim.
A.must B.should C.need D.can
33.—Look at the black hat. It must belong to Mr. King.
—No, it _______ be his. I saw an old man put it here just now.
A.mustn't B.needn't C.can't D.won't
34.We should keep quiet in the cinema. We speak loudly.
A.can B.must C.needn't D.mustn't
35.— Will the new iphone cost a lot
— I ________ think so. Apple's products are usually expensive.
A.shouldn't B.needn't C.would D.must
36.Children sit in the front seat of the car. It's too dangerous.
A.need B.needn't
C.must D.mustn't
37.一 Whose shirt is this
一 It _______________ be Li Leis. It is too big for him.
A.could B.must C.can't D.might
38.— Must I stay here with you
— No, you ______________. You may go home, but you ______________ go to the net bar (网吧).
A.mustn't; needn't B.needn't; mustn't
C.must; need D.need; must
39.Sorry, I __________ tell you where she is.
A.may B.may not C.can D.can't
40.Recently people in China ____take much money on shopping because they often use Alipay(支付宝)
A.needn't B.mustn't C.shouldn't D.can't
41.—Lucy is walking the dog in the park.
—She be. Listen! She is singing loudly in her room.
A.can't B.mustn't C.needn't D.won't
42.-- I don't care what my teachers think.
-- Well, you .
A.could B.would C.should D.might
43.Look at the sign by the river. It says we ________ swim in it.
A.must B.mustn't C.can D.can't
44.—I've bought all the food for the party tonight.
—Thank you. Then I go to the supermarket.
A.can't B.mustn't C.shouldn't D.needn't
45. One of the few things you _________say about English people with certainty is that they talk a lot about the weather.
A.need B.must C.should D.can
46.— Could I smoke here
— I'm afraid you _________. It's a non-smoking area.
A.couldn't B.needn't C.don't D.can't
47.—We will go to the Wushan Square this afternoon, why not take a bus
—We ________ take a bus , it's only one kilometer or more.
A.can't B.needn't C.mustn't D.may not
48.Would you please speak louder, Lucy I catch what you said.
A.can't B.oughtn't to C.needn't D.mustn't
49.Lucy has been invited to the party, but she not come. She is not certain whether her mother will allow her to.
A.would B.might C.must D.need
50._______ you leave now
—— Yes, because I'm meeting my aunt at 7:00 this evening.
A.Can B.May C.Need D.Must
51.— Can you play table tennis, Bill
— Yes, I _________________.
A.can B.will C.do
52.—Mom, must I do the dishes now
—No, you ________. You _______ do it later.
A.mustn't; can B.needn't; can
C.can't; can't D.needn't; have to
53.—Is that boy Tom
—It _____be Tom. He has gone to his hometown to visit his grandparents.
A.can B.must C.can't D.mustn't
54.— you swim
— No, I .
A.Can , can B.Can, don't C.Do, can't D.Can, can't
55.一I can't stop smoking, doctor.
一For your health, I'm afraid you .
A.may B.have to C.can D.need
56.— Must I book the ticket for the concert tonight?
—No, you _________.
A.mustn't B.can't C.may not D.needn't
57.— The driver be hurt badly in the accident.
— That's true. Let's send him to the hospital as soon as possible.
A.need B.can't C.must D.may not
58.Mr. Green ______________ be at home now. He went abroad on vacation last Friday.
A.needn't B.mustn't C.can't
59.—What's wrong with Judy She has been absent for two days.
—Oh, she _____ be ill. Let's go to ask Mr. Green.
A.may B.need C.would
60.Your answer ________ be right, but I'm going to check to make sure.
A.might B.can't C.must D.needn't
61.Sorry, you _____ play basketball in the classroom.
A.can't B.don't C.don't have to D.aren't
62.—Whose is this toy truck
—It ____ belong to Dick. He was the only little kid at the picnic.
A.can't B.must C.could D.need
63.-Can I park my car in front of the building
-No, you ___________.
A.won't B.can't C.needn't D.couldn't
64. —____ you help me with my homework
—Of course.
A.Can B.Will C.Would
65.—I saw your cousin in the music club just now.
—It be him.He is still on a business trip abroad.
A.must B.could C.might D.can't
66.—Are you interested in shopping online
—Not so much. We ______ see real products but pictures.
A.shouldn't B.can't C.mustn't D.needn't
67.The car doesn't move at all; there______ be something wrong with it.
A.maybe B.possible C.may D.will
68.—David, do you know Su Yiming, a snowboarder from China
—Sure. He won the first place in the men's Big Air Event. He_____________ be hard-working.
A.needn't B.can't C.should D.must
69.— Finally, they came back.
— They be hungry after such a long walk.
A.can't B.must C.neednt
70.It's a rule that students ___________ bring mobile phones to our school.
A.mustn't B.wouldn't C.needn't D.couldn't
71.— Mum, can I wear my jeans to school
— No, you ________ wear your school uniforms. That's the school rule.
A.can B.can't C.have to D.may
72.A: Mum, must I wash the dishes now
B: No, you . You may do it after you watch the TV news.
A.can't B.won't C.mustn't D.needn't
73.It's very warm. You ______ to wear the coat.
A.must B.don't have to C.have to D.mustn't
74.Drivers ________ drive after drinking alcohol.
A.needn't B.may not C.mustn't D.don't have to
75.— I just saw Sherley on the East Nanjing Road a few hours ago.
— Oh. That ______ be her. She has gone to Paris for vacation.
A.couldn't B.can't C.needn't D.mustn't
76.—Could I play with Tom now, Mum
—I'm afraid you _____. I saw him go out just now. So he _____ be at home now.
A.can't; can't B.couldn't; can't
C.can't; must D.couldn't; may
77.—It is too hot today.____ I swim in the river,Mom?
—No,you ____.It' s too dangerous!
A.Should;can't B.Can;mustn't C.May;needn't D.Must;needn't
78.—Must I do the project on my own
—No, you ____ . You can work with your classmates.
A.needn't B.can't C.shouldn't D.mustn't
79.I like this room. You ________ see the mountains from the window.
A.can B.should C.must D.need
80.—Doctor Wang, I'm feeling much better. Must I go on taking the medicine —No, you _____. You'll get well soon.
A.can't B.mustn't C.needn't
81. Peter____ be at home because he has gone to Germany for holiday.
A.mustn't B.must C.can D.can't
82. —What do you think we can do for our aged parents
—You ____ do anything except be with them as much as possible.
A.shouldn't B.needn't C.mustn't D.can't
83.When traffic lights are red, we ___________ stop and wait.
A.may B.can C.must D.might
84.—________ I swim here
—I'm sorry. Children _______ swim alone here.
A.Must, can't B.May, must C.Can, mustn't D.Can't, can
85.Don't use mobile phones at the gas station. It ________dangerous.
A.ought to be B.can be C.should be D.has to be
86. you come to my birthday party, please
A.Can B.Shall C.May
87.一This is a new book. Is it Tommy's
一Oh, here's a name Tommy. It ______be his.
A.must B.will C.may
88.— Do you like online shopping
—Not so much. We __________ see the real products on the Internet.
A.shouldn't B.can't C.should D.can
89.We ________ talk or speak loudly in public places, such as hospitals, libraries or cinemas.
A.needn't B.mustn't C.may not D.wouldn't
90.Be careful not to catch a flu. You ____ keep yourself warm and have a healthy diet.
A.can B.should C.may D.need
91.— What does Justin Bieber's song Never Say Never impress you most
— It tells us that we _______ do almost anything if we never give up.
A.can B.have to C.should D.need
92.— Must I water the flowers now, mum
— No, you ________.You ________ do it later.
A.mustn't; must B.mustn't; may C.needn't; may D.needn't; must
93.—_____ I swim here
—I'm sorry. Children _____ swim here.
A.Can,mustn't B.May, must C.Must, can't
94.Chinese chess ________ be Mary's favorite. She almost plays it every day.
A.may B.can't C.must
95.— ________ I borrow your ruler
— Of course, you can. Here you are.
A.Can B.Will C.Should D.Must
96.The green dictionary ______________ belong to ______________. Her name is on it.
A.may; Carla B.must; Carla C.can't; Carla D.must; Carla's
97.You ______________ hand in the report tonight. But you must do it tomorrow morning.
A.needn't B.mustn't C.can't D.shouldn't
98.——What about going swimming this afternoon
——You ______ be joking! Don't you know I'm afraid of water
A.may B.can C.must
99.—If traveling by space is not too expensive (昂贵的), everyone ________ travel in space.
—So traveling by space must be expensive.
A.could B.may C.had to D.must to
100.— It seems that Mr. Wu is standing there.
— It ______ be him because he called me from Canada just now.
A.mustn't B.can't C.needn't D.shouldn't
参考答案及试题解析
1.B
【解析】句意: 我们的学生正在考试。 你一定不能制造如此多的噪音。A.将不;B.禁止,一定不能;C.也许不;D.不必。根据 Our students are having an exam. 可知,此处指一定不能制造如此多的噪音。故选B。
【点评】考查动词辨析和情态动词。注意情态动词mustn' t表示禁止的用法。
2.C
【解析】句意:——在操场上跑步的是吉姆吗?——不可能是他。这个时候他总是在图书馆。A:mustn't,禁止。B:shouldn't,不应该。C:can't,不可能。D:needn't,不需要。根据 He is always in the library at this time. 可知,吉姆这个时候都在图书馆,所以不可能在操场跑步,故选C。
【点评】考查情态动词辨析。注意要根据语法和选项的含义,选择合适的情态动词。
3.B
【解析】 needn't不需要,mustn't禁止,won't不将,对may提问的句子进行回答时,肯定回答用can,否定回答用mustn't。句意:我可以把书包放在这里吗?不,你不可以,你应该把书包放在书架上。故选B。
【点评】考查情态动词的用法。
4.B
【解析】句意:同学们,不要在课堂上说话,否则你将会错过重点。根据“ or you will miss something important.”可知是禁止,故选B
【点评】识记情态动词否定形式的词义。
5.A
【解析】句意:——Peter不介意把他的相机借给你。——他不必了,我已经借了一台。根据“I've already borrowed one.”可推知彼得“不必”再借相机给我了,故答案选A。
【点评】考查情态动词的辨析。
6.C
【解析】——妈妈,我现在可以去游泳吗?——可以,亲爱的,但是记住你必须跟你爸爸一起去。may也许;可以;can能够;可以;must必须。根据句意可知表示强制,故选C。
【点评】考查情态动词辨析。
7.C
【解析】句意:——有人正在敲门,它是Ann吗?——它不可能是她,她正在电影院表演。A.可能;B.必须;C.不可能;D.禁止。根据She is giving a performance at the theatre now.可知她正在表演,不可能在敲门,表示否定的猜测,用can't,故选C。
【点评】考查情态动词,注意平时识记其词义,理解句意。
8.B
【解析】句意:——明天你能和我去山里吗,简?——抱歉。我必须为历史测验学习。might可能;can能,能够,must必须,根据 Sorry. 可知问可否一起去,根据 study for my history test 可知我必须为考试做准备。故选B。
【点评】考查情态动词辨析。根据上下文的联系确定所使用的情态动词。
9.A
【解析】句意:—那个在树下面的男孩是李明吗?—不是,那肯定不是李明。他现在在上海呢。A. can't不能,或表示否定猜测,肯定不;B. mustn't 千万别,一定不要,表示禁止;C. needn't不必,不需要;D. won't将来时的否定结构,将不会。根据句意可知是否定猜测,故选A。
10.A
【解析】句意:许多青少年不喜欢与父母交流,因为他们认为父母不能像朋友那样了解他们。can't不能;needn't不需要;mustn't禁止。根据常识,孩子和父母在很多方面存在代沟,故孩子们认为父母不能像朋友那样了解他们。故选A。
【点评】考查情态动词辨析,注意识记情态动词的用法。
11.C
【解析】句意:——妈妈,我昨晚没睡好,现在很累。——我可怜的孩子,你不应该熬夜玩手机。needn't不必,不需要;wouldn't不会;shouldn't不应该;can't不能。根据Mom, I didn't sleep well last night and I'm so tired now.(妈妈,我昨晚没睡好,现在很累。)可知这里表示不应该熬夜玩手机,shouldn't符合题意,故答案为C。
【点评】考查情态动词should表示劝告,建议。理解对话并掌握情态动词should的用法。
12.D
【解析】句意:——再来一杯茶?——不,谢谢。我现在必须走了。玛丽在等我。A 可能;B 可以;C 可能;D 必须。根据Mary is waiting for me可知,我必须走了,只有must符合语境,故选D。
【点评】考查情态动词的辨析。注意各个情态动词的含义,根据语境确定正确答案。
13.C
【解析】句意:人们禁止酒后开车,因为它是危险的。A.能够;B.不将要;C.禁止。根据常识可知酒后禁止开车,所以用mustn't,故选C。
【点评】考查情态动词辨析,首先识记选项意思,然后根据句意确定。
14.C
【解析】句意:——我必须今天写完这篇文章吗?——不,你不必。你可以明天做。mustn't不能,表示禁止;don't need不需要;don't have to不必;needn't to错误结构;must提出的一般问句的否定回答用No,主语+needn't/don't have to。(不,……不必。)可知C选项符合题意,故答案为C。
【点评】考查情态动词。识记must提出的一般问句的否定回答。
15.C
【解析】句意:——汤姆怎么了?他已经好几天都缺席了。——我不确定,他可能生病了,我们一起去问怀特小姐。A.can能够,B.must必须,C.might可能,D.should应该。根据后句话提到去问怀特小姐,可知空缺处的意义是可能,填入might,而must语气太强烈,故选C。
【点评】考查了情态动词的用法,注意might be的词性和拼写。
16.A
【解析】句意:你不能吸烟。你只有14岁,它不被允许的。mustn't:禁止,不可以,don't have to: 不必要,needn't:不必要,won't:不会,故选A。
【点评】考查情态动词。牢记mustn't的用法。
17.D
【解析】must必须,一定;would将要;should应该;might可能,表示推测语气。句意:——你来参加杰夫的聚会吗?——我不确定。我可能要去参加音乐会。结合语境可知下文表示推测,故选D。
【点评】考查情态动词
18.D
【解析】句意:我们应该了解一些关于《末成年人保护法》的知识来保护我们自己。根据"know something about the Youth Protection Law to protect ourselves."句意可 知这里在提建议,是指我们应该了解一些关于《末成年人保护法》的知识来保护我们自己。should,意为"应该",表示提建议,A.能;B.将;C.可能;D.应该。故选D。
【点评】考查情态动词辨析,注意根据语境以及对选项词义的掌握选出正确答案。
19.D
【解析】句意:在踢足球上没有人能和梅西比。- 你真是他的忠实粉丝。A. might,may的过去式可能,可以B. could,can的过去时,能,可能C. must必须,肯定D. can能,会。根据句意是一般现在时,故选D
【点评】考查情态动词的用法。
20.C
【解析】句意:生活就像骑自行车。为了保持平衡,你应该继续运动。A. could能够;B. could not不能够;C. should应该;D. shouldn't不应该;根据常识,可知骑自行车想要保持平衡你应该不断前进,表达"应该",用should,故选C。
【点评】考查情态动词。熟记常见情态动词的词义。
21.D
【解析】句意:河水太深。你必须要小心。根据前句The river is too deep.可知这句是必须,must,其余三项都是可能的意思,故选D。
【点评】考查情态动词的用法。牢记它们的用法。
22.C
【解析】 句意:在我们教室里的那个人是谁?他不可能是布朗克先生,他要更高一些。你是说那个穿白色衣服的吗?他是一个来自英国的交换生。can't表示不可能,故选C
【点评】情态动词是中考的热点,情态动词除了表推测外,还可以表达另外的意思,如must理解为必须,由这个词所开头的问句,肯定回答用Yes,you must.否定回答用No,you needn't或者是No,you don't have to.注意不用mustn't,因为mustn't表示例行禁止的含义。
23.D
【解析】句意:摇滚音乐在年轻人中听起来受欢迎,但是它不受上了年龄的人的赞同。must, 表示猜测时,指把握比较大的肯定猜测,肯定……;need需要;should,应该;may,表示把握比较小的肯定猜测,可能,也许。结合句意,故选D。
【点评】考查情态动词辨析,注意几个常见情态动词的意思和用法。
24.D
【解析】句意:—那是汤姆吗?—不是,不可能是汤姆。他现在在日本。wouldn't 不会;may not 可能不;mustn't 不允许,表禁止;can't 不可能,表推测。根据He is in Japan now可知汤姆现在在日本,所以不可能是汤姆。故答案选D。
【点评】考查情态动词,首先识记其意思,然后根据关键词确定。
25.B
【解析】句意:——我认为我们需要仔细讨论这个问题。——我同意,让我们找个安静的地方谈谈。I can't agree more,固定搭配,完全同意,故选B。
【点评】考查固定搭配,注意I can't agree more的用法。
26.B
【解析】句意:——我现在必须完成工作吗 ——不,你不需要。你可以稍后再做。may可以,能,表示请求,否定回答用can't;must必须,否定回答用needn't或don't have to;can能,否定回答用can't;故答案为B。
【点评】考查情态动词。注意识记must提问的一般问句的否定回答。
27.A
【解析】句意:你不要吸烟,你才只有14岁,不允许吸烟。mustn't禁止,不要;don't have to不必;needn't不需要,没有必要;won't不会。根据句意可知,14岁的青少年禁止吸烟,故应选A。
【点评】考查情态动词辨析。
28.A
【解析】句意:一一凯特,你穿看绿色的衣服很漂亮。一一谢谢,我喜欢绿色。绿色给我能量。A.能,表示能力;B.must必须,强调主观愿望;C.应该,强调责任与义务;D.必须.强调客观要求。绿色能给我力量,我喜欢。故选A。
29.A
30.C
【解析】句意:——我们必须一直保持房间足够干净吗?——不,没必要。根据句意,可知是用情态动词提问,意为“是不是必须”,而不是用助动词询问是否做了,排除B;用must提问,否定回答用don't /doesn't have to/needn't,没必要,又根据第二空主语you为第二人称,所以用助动词don't,故选C。
【点评】考查情态动词的问答。掌握must构成的疑问句的答语。
31.D
【解析】can能,能够;must必须,一定;could能,可能;may可以,可能;needn't不必;mustn't禁止,一定不;won't不会。句意:先生,我能在这个大厅拍照吗?——不,这里禁止拍照。结合语境可知选D。
【点评】考查情态动词
32.D
【解析】句意:——迈克,你会骑自行车吗?——不,但是我会游泳。A.必须;B.应该;C.需要;D.会,能。根据 can you ride a bike 和此处的否定回答可知,此处应该是指会游泳,故选D。
【点评】考查动词辨析和情态动词can。注意情态动词can表示能力的用法。
33.C
【解析】must表示确切判断“一定”时,反义词“一定不;不可能”用can't表示。故答案为C
34.D
【解析】句意:我们应该在电影院保持安静。我们禁止大声说话。A.可以;B.必须;C.没必要;D.禁止。根据We should keep quiet in the cinema.我们应该在电影院保持安静,可知讲的是禁止大声说话,故选D。
【点评】考查情态动词,首先识记情态动词区别,然后根据关键词句We should keep quiet in the cinema.确定答案。
35.C
【解析】shouldn't 不应该;needn't 不必; would 会,将要;must必须。句意:这部新的苹果手机花钱多吗?——我想如此。苹果公司的产品向来贵。故选C。
【点评】情态动词的考查是初中英语考查的重点,平时学习中一定要熟记这些词的基本词义及用法上的不同,注意其用法及在句子中表达语气的不同。考试中结合语境选择合适答案。
36.D
【解析】句意:孩子们不得坐小车的前排。太危险了。A.需要,必须;B.不必,不需要;C.必须;D.不准,不得,禁止。根据句意,因为太危险了,所以孩子们不准坐前排的位置。故选D。
37.C
【解析】句意:——这是谁的衬衫?——不可能是李雷的,对他来说太大了。A能,B必须丙,C不能,D可以,根据对他来说太大了,可知此处表示否定句推测,故是can't,故选C。
【点评】考查情态动词,注意识记can't的用法。
38.B
【解析】句意:——我必须和你待一起吗?——不,你没必要。你可以回家,但是你禁止进网吧。must必须,mustn't禁止,不允许,need需要,needn't不必要。由句意可知第一空是说“没必要”,用needn't;第二个空是说“禁止”,用mustn't,故选B。
【点评】考查情态动词,注意根据句意和语境选出正确的情态动词。
39.D
【解析】句意:抱歉,我不能告诉你她在哪里。A:可以;B:不可以;C:能;D:不能。根据Sorry可推出,我不能告诉你。能做某事……,表示能力,肯定意义,用can。否定用can't,表示不能做某事,D选项符合句意。故答案为:D。
【点评】考查情态动词。熟悉情态动词的意思及用法。
40.A
【解析】句意:最近中国人没必要购物带许多钱,因为他们经常使用支付宝。A.没必要;B.禁止;C.不应该;D.不可能。因为有支付宝,所以人们购物时没必要带许多钱,故选A。
【点评】考查情态动词辨析,注意平时识记其词义,理解句意。
41.A
【解析】句意:——露西正在公园里遛狗。——她不可能在遛狗。听!她正在房间里大声唱歌。A. can't不可能,表示有把握的否定猜测;B. mustn't不许,表示禁止性的语言;C. needn't不需要;D. won't将来时态的否定助动词。本题考察情态动词表示“猜测”之意,根据后文Listen! She is singing loudly in her room.可知,对“露西在遛狗”做出有把握的“否定猜测”,can't be,不可能是,故选A。
【点评】此题考查情态动词辨析。
42.C
【解析】句意:——我不在乎老师想什么。——哦,你应该在乎。could能;would会;should应该;might也许。根据句意可知选C。
【点评】考查情态动词辨析。
43.B
【解析】句意:看河边的标志。上面说我们禁止在里面游泳。A.必须;B.禁止;C.可以;D.不可能。根据Look at the sign by the river.看河边的标志,可知上面说我们禁止在里面游泳,故选B。
【点评】考查情态动词,首先识记选项意思,然后根据关键词句Look at the sign by the river.和句意确定答案。
44.D
【解析】句意:——我为今晚的聚会买了所有的食物。——谢谢,那么我不必去超市了。A不能,B禁止,C不应该,D不必,根据买了所有的食物,可知就不必再去超市了,故选D。
【点评】考查情态动词,注意needn't的用法。
45.D
【解析】句意:关于英国人,你能确定的少数几件事之一就是他们经常谈论天气。need,需要;must,必须;should,应该;can能,会; 根据One of the few things可知这里表示能确定的几件事之一,can符合句意,故答案为D。
【点评】考查情态动词。理解句意并识记can的意义和语法。
46.D
【解析】句意:——我能在这里吸烟吗?——恐怕你不可以在这里吸烟。这是一个无烟区。couldn't不可能,是没有把握的推测,可能性比较小,needn't不必;don't不;can't不可以,表示不可能时,是有把握的推测。Could表示请求用在疑问句中表示预期,更加委婉,回答则用肯定预期。根据It's a non-smoking area可知此处表示是无烟区,因此不可以吸烟。故选D。
【点评】考查情态动词的基本用法。
47.B
【解析】 句意:——今天下午我们将去吴山广场,为什么不坐公交车呢?——我们不必做公交车,只有一公里或一公里多的路程。A. can't 不可能;B. needn't 不必;C. mustn't 禁止;D. may not可能不;根据it's only one kilometer or more.可知距离近,因此不需要做公交车,故用情态动词needn't。故选B。
【点评】考查情态动词的用法。
48.A
【解析】句意:露西,请你大声点好吗?我听不懂你说的话。can't不能;oughtn't to不应该;needn't不需要;mustn't表示禁止。根据前句“Would you please speak louder… 请你大声点好吗?”可知,不能够听懂对方说的话。故选A。
【点评】考查情态动词,首先识记其区别,然后根据关键词句和句意确定。
49.B
【解析】句意:露西已被邀请参加晚会,但她可能不会来。她不确定她的妈妈是否允许她去参加晚会。A. would愿意;B. might可能,用于不确定推测;C. must必须,表示肯定推测;D. need需要。根据She is not certain可知,Lucy可能来不了;故答案选B。
【点评】此题考查情态动词的用法。
50.D
【解析】Can 能,能偶;May 可以,可能;Need需要;Must必须,一定。根据下文,是的,因为我今天晚上七点钟我要去见我的姑姑。可知上文问的是,你现在必须动身了吗 故选D。
【点评】情态动词的考查是初中英语考查的重点,平时学习中一定要熟记这些词的基本词义及用法上的不同,注意其用法及在句子中表达语气的不同。考试中结合语境选择合适答案。
51.A
【解析】句意:——你会打乒乓球吗,比尔?——我会。can,能,会,表示能力,一般疑问句的肯定回答为Yes, 主语+can,故答案为A。
【点评】考查情态动词。注意识记can的用法。
52.B
【解析】句意:妈妈,我必须现在洗碗吗?-不……你……一会做。根据句意可知不必现在就做,可以一会做,故选B。
【点评】考查情态动词的应用。
53.C
【解析】句意:——那个男孩是Tom吗?——不可是Tom,他去家乡看望祖父母了。A:can能,表示能力;B:must一定,表示有把握的肯定推测;C:can't不可能,表示有把握的否定推测;D: mustn't禁止。根据He has gone to his hometown to visit his grandparents他去家乡看望组父母了。可知,他不在这里,不可能是Tom,有把握的否定推测,用can't。故选C。
【点评】考查情态动词。注意掌握情态动词肯定推测和否定推测。
54.D
【解析】句意:——你会游泳吗?——不,我不能。can能;can't不能;don't不。根据空格后you swim,你游泳,可知此处询问你会游泳吗,表示能力,应用Can提问;答句为否定回答,可知应用can't回答,故选D。
【点评】考查情态动词,注意识记情态动词can和一般疑问句的用法。
55.B
【解析】句意:——医生,我忍不住要吸烟。——为了你的健康,恐怕你必须戒烟。A.may可以,表示允许;B.have to不得不,表示客观上的要求;C.can可以,表示允许;D.need需要,表示必要性。根据for your health可知为了你的健康,因此这是客观上要求,必须戒烟,故答案为B。
【点评】考查情态动词。掌握情态动词的意义和用法。
56.D
【解析】句意:——我必须预订今晚音乐会的票吗?——不,你不必。must的一般疑问句的否定回答是needn't,故选D。
【点评】考查情态动词,注意must的一般疑问句的否定回答是needn't的用法。
57.C
【解析】句意:——
司机在事故中肯定受了重伤。——没错。让我们尽快送他去医院。A需要,B不可能,否定句推测,C一定,肯定句推测,D可能不,根据Let's send him to the hospital as soon as possible, 可知表示肯定的推测,故选C。
【点评】 考查情态动词,注意must表示肯定的推测的用法。
58.C
【解析】句意: 格林先生现在不可能在家,上周五他出国度假了。A不必,B禁止,C不可能,根据上周五他出国度假了,可知否定句推测,是不可能,故选C。
【点评】考查情态动词,注意can't的用法。
59.A
【解析】句意:—茱迪怎么啦?她缺席了两天了。—哦,她可能生病了。我们去问格林先生吧。A. may可能,可以;B. need需要,必须;C. would愿,要。缺席两天,可能是生病了。故选A。
【点评】本题考查情态动词词义辨析。以及may、need、would三个词的词义和用法。
60.A
【解析】句意:你的答案可能是对的,但我要检查一下以确定。 A.might可能;B.can't不可能;C.must必须;D.needn't没必要。根据后面的“I'm going to check to make sure.”,要检查确认答案是否正确,说明空格处表示可能猜测,故选A。
【点评】考查情态动词表猜测的用法,注意识记各情态动词含义,理解语境。
61.A
【解析】句意:抱歉,你不能在教室打篮球。根据sorry可知是不能,can't不能,故选A。
【点评】考查情态动词,注意识记can的用法。
62.B
【解析】句意:—这辆玩具卡车是谁的?—它一定是迪克的。他是野餐会上唯一的小孩。can't不能;must必须;could能;need需要。根据He was the only little kid at the picnic."他是野餐会上唯一的小孩。"可知,这辆玩具卡车"一定"是迪克的。故选:B。
【点评】考查情态动词。情态动词在句中不受人称、性别、单复数变化的影响,但是要考虑时态,交际用法等。结合语境,选择正确答案。
63.B
【解析】A. won't将不会;B. can't不能;C. needn't不必;D. couldn't不能,一般不用作答语;句意:-我能在楼前停车吗?-不,不行。根据句意,故选B。
【点评】考查情态动词的辨析。
64.A
【解析】句意:——你能帮我做作业吗?——当然。A.Can,能;B.Will,将要;C.Would,will的过去式;根据"you help me with my homework "可知此处要表达你能帮我做作业吗,故选A。
【点评】考查情态动词can。识记can的用法。
65.D
【解析】句意:——我刚才在音乐俱乐部看见你表哥了。——不可能是他。他还出差在外。根据后面他还在出差可知不可能是他。can't 表示“不可能”。根据句意,故答案选D。
【点评】考查情态动词表推测。掌握情态动词表推测时的意义。must一定;could/might可能;can't不可能。
66.B
【解析】句意:——你对网上购物感兴趣吗?——不是那么感兴趣。除了图片我们看不到真实的产品。A. shouldn't“不应该”;B. can't “不能”;C. mustn't“一定不要”;D. needn't“不必”。根据句意可知是不能看到真实的产品,故选B。
【点评】考查情态动词的辨析,区分shouldn't,can't,mustn't,needn't的含义和用法。
67.C
【解析】句意:车一点都不动了,可能出了问题了。此题考查情态动词,A可能,副词,放在句中应放于be动词之后;B可能的,不能修饰动词;C可能,情态动词,后跟动词原形;D将会,表达将来的推测,不合句意。故选C。
【点评】考查情态动词。
68.D
【解析】句意:——David,你知道苏翊鸣,一位来自中国的单板滑雪运动员?——当然,他赢得男子单人跳第一名。他一定很努力。A. needn't,不必; B. can't,表示否定猜测,不可能; C. should ,应该;D. must,表示肯定猜测,一定;根据 “won the first place in the men's Big Air Event”可知此处要表示肯定猜测,一定,故选D。
【点评】考查情态动词。识记can't表示把握极大的否定猜测,译为不可能,must表示把握极大的肯定猜测,译为一定、肯定。
69.B
【解析】考查情态动词的用法。句意:--最后,他们回来了。--他们在走了那么长的路后一定饿了。A.can't不可能;B.must一定;C.needn't不必。根据after such a long walk可知,这里推测的可能性很大,故选B。
70.A
【解析】句意: 学生禁止带手机到我们学校是一条规定。A禁止,B不会,C不必,D不能,根据rule,可知禁止和规则语境符合,故选A。
【点评】考查动词原形,注意mustn't的用法。
71.C
【解析】 句意:——妈妈,我能穿牛仔裤上学吗?——不,你必须穿校服。这是学校的规定。情态动词,have to,必须,表示客观需要,故选C。
【点评】考查情态动词,注意have to的用法。
72.D
【解析】根据语境可知此句的含义是妈妈,我必须现在洗碗碟吗?其答语是不,没有必要。考查的是以must引导的一般疑问句的简略回答。根据英语的语法要求可知以must引导的一般疑问句的简略回答,肯定句要用must,否定句要用needn't 或don't have to。有选择项的提示可知选择D。
73.B
【解析】must 必须,don't have to 不需要,have to 不得不,mustn't 千万不能,根据句意“天气很暖和,你不需要穿外套”可知选B。
【点评】本题考查情态动词的用法。
74.C
【解析】句意:司机不准酒后驾车。A.needn't,不需要、不必;B.may not,或许不;C.mustn't,不可以,禁止;D. don't have to,不必;根据“Drivers……drive after drinking alcohol.”可知酒后不准驾车是一项强制遵守的命令,因此用mustn't表示不准,故选C。
【点评】考查情态动词。识记mustn't语气强烈,表示不准、禁止。
75.A
【解析】句意: ——几小时前,我刚刚在南京东路上看到谢利。——噢。那不可能是她,她去巴黎度假了。A不可能,是过去式,B不可能,一般现在时,C不必,D禁止,根据她去巴黎度假了,可知不可能是她,根据a few hours ago,可知时态是一般过去时,故选A。
【点评】考查情态动词,注意识记couldn't的用法。
76.A
【解析】句意:——妈妈,我现在可以和汤姆一起玩了吗?——恐怕不行。我刚才看见他出去了。所以他现在不可能在家。can't不能;不会;不可能;couldn't不能,不会,表过去的能力;must必须;一定;may可以;可能;根据Could I play with Tom now, Mum 可知这里第一个空表示请求,不表过去,根据I'm afraid可知这里是否定的回答,不能,用can't;根据I saw him go out just now. 可知他刚才出去了,所以不可能在家,用can't表否定的推测,故答案为A。
【点评】考查情态动词。识记can的不同用法。
77.B
【解析】句意:——今天太热了。妈妈,我能在河里游泳吗?——不,你不准。太危险了。A.Should,情态动词,应该;can't,不能;B.Can,情态动词,能、可以;mustn't,不准;C.May,情态动词,可以;needn't,不必;D.Must,情态动词,必须、一定;needn't,不必;根据"It is too hot today……I swim in the river,Mom?"可知此处要表达我能在河里洗澡吗,第一空用can;根据"It's too dangerous!"可知"No,you ……"要表达你不准,第二空用mustn't,故选B。
【点评】考查情态动词can、mustn't。注意根据语境选择最恰当的情态动词来表达感情。
78.A
【解析】句意:——我必须独自做这个项目吗?——不必,你可以和同学一块做。A不必;B不能;C不应该;D一定不要。must引导的一般疑问句,否定回答时用 needn't。故答案为A.
【点评】考查情态动词辨析。
79.A
【解析】句意:我喜欢这间房。从窗户上你能看见山峰。A.can,情态动词,能;B.should,情态动词,应该;C.must,情态动词,必须;D.need,情态动词,需要,往往用于疑问句、否定句;根据“You ……see the mountains from the window.”可知此处要表达一种客观能力,能从窗户看到山风,因此用can see the mountains from the window,故选A。
【点评】考查情态动词。识记情态动词can表示客观能力的用法。
80.C
【解析】句意:一王医生,我感觉好多了。我必须继续服药吗 一不,你不必了。你很快就会好的。A. can't不能,不可能; B.mustn't不准,禁止; C. needn't不必。你不必服药了,故选C。
81.D
【解析】句意:彼得不能在家,因为他去德国度假了。A.禁止;B.一定;C.可能;D.不可能。because he has gone to Germany for holiday因为他去德国度假了,可知不可能在家,故选D。
【点评】考查情态动词,首先理解情态动词意思,然后根据关键词句because he has gone to Germany for holiday确定情态动词。
82.B
【解析】句意:——你认为我们能为年迈的父母做些什么 ——你什么都不需要做,只要尽可能多地和他们在一起。A.不应该。B.不需要。C.禁止。D.不可能。根据原句except be with them as much as possible,说明只需要尽可能多地和他们在一起,其他事情不需要做。needn't意为不需要符合语境。故选B。
【点评】考查情态动词。理清选项中的情态动词意思,再结合语义选出适当的情态动词。
83.C
【解析】句意:当交通灯是红色时我们必须停止等着。may可能,can能,能够,must必须,might有可能,可能性小,这是一个交通规则,红灯停,故选C。
【点评】此题考查情态动词。要注意情态动词的区别。
84.C
【解析】句意:——我能在这里游泳吗?——抱歉,孩子们禁止单独在这里游泳。must是必须,may是可能,can可能,can的意图更大一些,mustn't禁止,不允许。这里问我是否能再这里游泳,情态动词can在这里表示允许,第二空表示禁止,不允许用mustn't,故选C。
【点评】考查情态动词辨析。掌握情态动词的使用规则。
85.B
【解析】句意:不要在加油站打手机。它可能是危险的。A. ought to 表示应该;B. can 表示能,会;C. should 表示应该;D. has to 表示不得不。根据题意,故选B。
86.A
【解析】句意:你能来参加我的生日派对吗?can可以;shall用于第一人称表示将来;may表示请求许可。本句的主语是you,询问对方能不能来,故答案为A。
【点评】考查情态动词辨析,牢记单词的意思,根据习惯用法和语境确定答案。
87.A
【解析】句意:——这是一本新书。是汤米的吗?——哦,这是一个名字汤米。它一定是他的。A.一定;B.将要;C.可能。根据here's a name Tommy.可知书上写的名字是Tommy,表示肯定推测,即书一定是Tommy的,故选A。
【点评】考查情态动词,首先识记情态动词意思,然后根据关键词句here's a name Tommy确定。
88.B
【解析】句意:——你喜欢网上购物吗?——并非如此。我们在互联网上看不到真正的产品。A: shouldn't不应该,B: can't不能,C: should应该,D: can能, 根据回答 Not so much. 可知并不喜欢在网上购物,回答应是否定,应用can't,故选B。
【点评】考查情态动词,注意识记情态动词的用法。
89.B
【解析】句意:我们不能在医院、图书馆或电影院等公共场所大声说话。A、不需要,不必,B、禁止,不能,C、可能不会,D、将不会。根据句意和常识,在医院、图书馆或电影院等公共场所药保持安静,不能大声讲话,故答案为B。
【点评】考查情态动词,注意区分情态动词表示否定时的意思。
90.B
【解析】句意:小心别感染流感。你应该保持温暖和健康的饮食。A.可以;B.应该;C.可能;D.需要。根据Be careful not to catch a flu.小心别感染流感,keep yourself warm and have a healthy diet.You should keep yourself warm and have a healthy diet保持温暖和健康的饮食,可知讲的是应该保持温暖和健康的饮食,故选B。
【点评】考查情态动词,首先理解情态动词词义,然后根据前后句句意确定情态动词。
91.A
【解析】句意:—为什么贾斯汀·比伯的《永不言败》让你感触最深?—因为它告诉我们只要我们从不放弃,我们就……做到任何事情。A. can 可以,能;B. have to,不得不;C. should 应该;D. need 需要。根据句意,可知应该是如果我们从不放弃就可以做到任何事情,此处缺少的是能、会。故选A。
【点评】考查情态动词,熟知句意以及所给选项的意思是解答本题的关键。
92.C
【解析】Must 开头的一般疑问句,肯定回答是 Yes,you must. 否定回答是 No,you needn't,表示“不需要”,may表示“可以”,故选C。句意是:—妈妈,我必须现在浇花吗?—不,你不需要,你可以稍后再浇。
【点评】本题考查情态动词的用法。
93.A
【解析】句意:—我可以在这里游泳吗?—对不起。孩子禁止在这里游泳。Can能,能够;mustn't禁止;一定不要,may可以;must必须;一定,can't不可能。May/ Can I……?我可以做某事吗?表示请求允许。根据I'm sorry可知此处表示不允许,所以孩子一定不要在这里游泳,故第二空用mustn't。故选A。
【点评】此题考查情态动词辨析。要掌握各个情态动词的意思及使用方法。
94.C
95.A
【解析】句意:——我能借一下你的尺子吗?——当然,你能。给你。A.Can,情态动词,能;B.Will,情态动词,会;C.Should,情态动词,应该;D.Must,情态动词,一定、必须;根据“Of course, you can.”可知“……I borrow your ruler ”要表达我能借一下你的尺子吗,can,能,用在此处符合句意,故选A。
【点评】考查情态动词。注意情态动词can的用法。
96.B
【解析】句意: 绿色字典肯定属于Carla的,她的名字在上面。may可能,must一定,can't不可能,根据她的名字在上面,可知是肯定句的推测,一定是,belong to sb,to后是宾语,故用Carla,故选B。
【点评】考查情态动词,注意must和belong to sb的用法。
97.A
【解析】句意:你不必今晚交报告。但是你必须明天早上做。A.不必;B.禁止;C.不能;D.不应该。根据后文But you must do it tomorrow morning.可知此处是不必今晚交报告,故选A。
【点评】考查情态动词。注意理解选项意思,根据题目所给语境选择合适的选项。
98.C
【解析】句意:——今天下午你打算去游泳吗 ——你肯定是开玩笑吧!你不知道我害怕水吗 must, can(could),may(might)可以表示猜测,must表示肯定猜测,用于肯定句,肯定……,一定……;can' t,表示否定猜测,肯定不……,另外 can(could),may(might)表示可能性猜测,可能。根据后文的反问,可知是肯定猜测,故选C。
99.B
【解析】句意:——如果乘飞船旅行不太贵,每个人都可以在太空旅行。——因此乘飞船旅行一定非常贵。could,情态动词,能;may,情态动词,可以;had to,不得不;must to,形式错误;根据"If traveling by space is not too expensive (昂贵的),"可知" everyone……travel in space."要表达每个人都可以乘飞船旅行,may,可以,用在此处符合句意,故选B。
【点评】考查情态动词。识记情态动词could、may的用法。
100.B
【解析】句意:好像是吴先生正站在那里。不可能是他,因为他刚刚在加拿大给我打电话。can't 表示不可能做某事,对于事物的强烈的否定推测,故选B
【点评】情态动词是中考的热点,情态动词除了表推测外,还可以表达另外的意思,如must理解为必须,由这个词所开头的问句,肯定回答用Yes,you must.否定回答用No,you needn't或者是No,you don't have to.注意不用mustn't,因为mustn't表示例行禁止的含义。
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