牛津上海版7A情态动词基本用法专项讲解及练习(有答案)
情态动词基本用法
一、基本概念及特征
二、基本分类
只作情态动词的有：must, can (could), may (might)
可作情态动词也可作实义动词的有：need ，dare
可作情态动词也可作助动词的有：will (would), shall (should)
具有情态动词某些特征的有：have to, ought to ，had better
三、用法详解
1、情态动词基本用法
1）can/could
表示能力，意为“能、会”。
Two eyes can see more than one.
Could the girl read she went to school?
⑵ 表示请求或允许，多用于口语中，意为“可以”，相当于may 。
You can go now.
Can I have a look at your new pen?
He asked whether he could take the book out of the reading-room.
⑶较委婉客气地提出问题或陈述看法。
Can (Could) you lend me a hand?
注意：情态动词的过去式除了表示过去的时间这一用法外，更多时候表达一种比原形更为委婉客气的语气。尤其在出现在宾语从句主句中时，并不影响从句的时态。
练习：用can 或could 填空.
1)I'm really hungry. I_____________ eat a horse!
2)It's so nice here. I ____________ stay here all day but I have to go.
3)"I can't find my bag. Have you seen it?" "No, but it_____________ be in the car."
4)Peter is a musician. He plays the violin and he____________ also play the piano.
5)The weather is nice now but it_____________change later.
keys: 1) could 2) could 3) could 4) can 5)could
2）may/might
⑴表允许，might可以指过去时间，也可指现在时间，语气更委婉。
You may take whatever you like.
He told me that I might smoke in the room.
May (Might) I ask for photo your baby?
⑵表示祝愿，常用于倒装结构中：
May you succeed! 祝你成功！
May all your dreams come true! 愿你梦想成真！
练习：选择最佳答案填空：
1)—______________ I borrow your MP3?
—Sure. Here you are.
A. May
B. Should
C. Must
D.
Would
2)Y o u ______________ go and ask Meimei. She _____________ know the answer.
A. must; can
B. must; may
C. need; can
D. can;
may
3)I'm not sure if I'll be free then. I ______________ working that weekend.
A. must be
B. should be
C. may be
D. can
be
4)—_____________ I visit Lucy on Sunday, Mum?
—Yes, you____________ .
A. Must; can
B. May; may
C. Need; need
D.
May; need
5)Peter _____________ come with us tonight, but he isn't very sure yet.
A. must
B. may
C. can
D.
Will
【Keys】4. 1)A 2) D 3) C 4) B 5) B
3）must
⑴表示“必须”、“应当”。
We must love our country.我们要热爱祖国。
I must take a day off tomorrow.我明天必须请一天假。
⑵must的否定式（mustn’t）表示“不应该”、“不许可”、“不准”、“禁止”等，语气比较强烈。
You mustn’t speak loudly in the library.不许在图书馆大声喧哗。
We mustn’t waste our time.我们不应该浪费时间。
4）need
⑴作情态动词时，接动词原形。仅用于否定句和疑问句，否定直接加not（needn’t）
—Need we leave soon?
—Yes, you must.(No, you needn't)
You needn't have hurried.
(2)作实义动词时，接带to的不定式。否定和疑问借助助动词完成（如did you need？didn't need）
He needs to see a doctor.
They didn't need to start so early.(do not need to do)
练习：选择填空。
1. Students wear uniforms at school.
A. must
B. can
C. may
D. need
2. We talk or speak loudly in public places like hospitals, libraries or cinemas.
A, needn’t B. mustn’t C. may not D. don’t.
3. you tell me how to improve my memory?
A. Do
B. Can
C. Must
D. Should
4. I neither read nor write at that time.
A. can
B. may
C. must
D. could
5. The conductor said I get off at the next stop.
A. must
B. had to
C. have to
D. would have to
6. You talk so loud.
A. don’t have
B. needn’t
C. don’t need
D. not need
7. Children cross busy streets to go to school.
A. haven’t to
B. don’t have
C. don’t have to
D. not have to
8. —Can children under the age of ten ride bicycles in the city?
——No. According to the law, they .
A. may not
B. needn’t
C. mustn’t
D. shouldn’t
9. Must I water the flowers today?
— . It’s going to rain.
A. No, you needn’t
B. No, you can’t
C. No, you may not.
D. Yes, you must
10. — I park my car here?
—Sorry, l’m afraid you .Can you see the sign “No Parking” here?
A. Can... can
B. Need... may not
C, May... can’t D. May... needn’t
keys: 1-5 ABBDD 6-10 BCCAC
5）shall
表征询意见，用于第一、第三人称疑问句。
Shall I get some tea?
Shall the boy wait outside?
What shall we do this evening?
6）will
⑴表意愿，用于各种人称陈述句。
I will do anything for you.
None is so blind as those who won’t see.
⑵表请求，用于疑问句。
Will you close the window? It’s a bit cold.
Won’t you drink some more coffee?
（2）表示某种倾向或习惯性动作。
Fish will die out of water.
The door won’t open.
7）would
⑴表意愿。
I said I would do anything for you.
⑵表委婉地提出请求、建议或看法。
Would you like another glass of beer?
Would you mind cleaning the window?
They wouldn’t have anything against it.
⑶表过去反复发生的动作或过去的一种倾向。
Every time she was in trouble, she would go to him for help.
8）should
⑴表义务。意为“应该”（某件事宜于做），用于各种人称。
You should be polite to your teachers.
You shouldn’t waste any time.
9）ought to
⑴表义务，意为“应该”（因责任、义务等该做），口气比should稍重。You are his father. You ought to take care of him.
You oughtn’t to smoke so much.
⑵表推测，暗含很大的可能，语气较弱。
Han Mei ought to know his telephone number.
There’s a fine sunset; it ought to be a fine day tomorrow.
练习：选择填空。
1. He eat so greedily.
A. shouldn’t to
B. ought to not
C. ought not
D. oughtn't to
2. Let’s play table tennis, ?
A. will we
B. shall we
C. shan’t we
D. will you.
3.— you please take a message for him?
-Sure.
A. Will
B. Shall
C. Ought
D. Should
4. Please erase the words and phrases from the blackboard after class, ?
A. can you
B. will you
C. do you
D. don’t you
5. — you turning down the radio a bit?
-Not at all.
A. Would... mind
B. Would…like
C. Will…you
D. Had... better
6. ---we have a word with Susan?
---Yes, we talk to him.
A. Shall...shall
B. Shall…should
C. Should…shall
D. Should... should
7. —I go there alone?
—Yes，you ought.
A. Do…ought
B. Will…ought
C. Ought... to
D. Ought…/
8. ---you to have some pudding?
—Yes, please.
A. Had. . . better
B. Ought.../
C. Would…like
D. Would…mind
9. You’d better you know when you don’t and it’s better for an electrician.
A. not to pretend... to send
B. not pretend…send
C.not to pretend…send
D. not pretend…to send
10. —Shall I tell Michael about the news?
—No, you . He’s already known it.
A. can’t
B. mustn’t
C. needn’t
D. don’t
keys: 1-5 DBABA 6-10 BCCDC
练习一
I Choose the best answer.
1)— May I take this magazine out of the reading room?
—_____________ . Please read it here.
A. Certainly
B. No, you needn't
C. No, you can't
D. No,
you may not
2)Many of the stars____________ because they are far away from us.
A. may not see
B. cannot be seen
C. mustn't be seen
D.
needn't see
3)— Who is the man over there? Is it Mr Li?
—No, it_____________ be him. Mr Li is much taller.
A. can't
B. may not
C. mustn't
D.
needn't
4)I have my own room in my house, so I______________ do whatever I want in it.
A. must
B. have to
C. need to
D. can
5)— _____________ I speak to Jill, Mrs Black?
—Sorry, she's not in. She _____________ be back after five.
A. May; need
B. Can; may
C. Can; must
D.
Must; may
6)— Would you like to go swimming with me this afternoon?
—I'd love to. But I'm afraid I _____________ . I have too much work to do.
A. can't
B. mustn't
C. needn't
D.
may not
7)— Could I borrow your dictionary?
—Yes, of course you_____________ .
A. might
B. will
C. can
D.
should
8)She didn't know where she ______________find wild roses.
A. may
B. could
C. can
D. is
able
9) ____________ you pass me a pen? I'd like to write down the telephone number.
A. Need
B. Could
C. Must
D.
Should
10)—_____________ I fill in the check-in form right now, sir?
— No, you needn't. You can complete it this afternoon.
A. May
B. Can
C. Would
D.
Must
11)Y ou _____________ b e careful with fire when you have a picnic in the forest. It's too dangerous.
A. will
B. must
C. can
D.
may
12)It's a secret between you and me. You _____________ tell anyone about this.
A. must
B. can
C. mustn't
D.
needn't
13)The flowers ______________ every day, or they'll die.
A. must water
B. can be watered
C. should water
D.
must be watered
14)Alice has been in China for several years. She _______________ be a big girl now.
A. need
B. must
C. can
D.
may
15)I'm sorry. I _______________ go now. My father told me on the phone that my mother
was ill.
A. can
B. may
C. have to
D.
think
KEYS: 1) D 2) B 3) C 4) D 5) B 6) A 7) C 8) B 9) B 10)D
11)B 12) C 13) D 14) B 15) C
练习二
I．Choose the best answer.
1. Students________ be careful when they do chemical experiments in the lab.
A. can
B. must
C. need
D. may
2. My mother________ make rice dumplings. She'll teach me how to do it.
A. must
B. need
C. should
D. can
3. —________I fill in the check-in form right now, sir?
— No, you needn't. You can complete it this afternoon.
A. May
B. Can
C. Would
D. Must
4. We________ keep the new traffic law and learn how to protect ourselves.
A. may
B. should
C. can
D. need
5. Susan's parents have bought a large house with a swimming pool. It________ be very expensive.
A. must
B. can
C. mustn't
D. can't
6. Cars, buses and bikes ________stop when the traffic lights change to red.
A. can
B. may
C. must
D. need
7. Computers ________ process difficult problems very, very quickly.
A. must
B. need
C. should
D. can
8. –Must I return the magazine to you right now, Sandy?
--No, you______. You may keep it until next Wednesday.
A needn’t
B can’t
C must
D may
9．To everyone’s surprise, Alex ________play chess very well when he was only four.
A. might
B. should
C. would
D. could
10．Everyone __________go through the security check (安检) when entering the World Expo Park.
A .can B. may C. must D. ought
keys: 1-5 BDDBA 6-10 CDADC
(英语)高一英语情态动词解题技巧及练习题(含答案)
（英语）高一英语情态动词解题技巧及练习题(含答案) 一、单项选择情态动词 1．—It’s so hot and uncomfortable here! Why are your windows still closed? —Oh, I’m not to blame. They ________ open. A．shan’t B．mustn’t C．won’t D．wouldn’t 【答案】C 【解析】 【详解】 考查情态动词辨析。句意：---这里又热又不舒服！你的窗户怎么还关着？ ---哦，不该责备我啊。窗户打不开了。shan’t= shall not意为“不可, 不应”；mustn’t=must not意为“不要”；wouldn't=would not 意为“不会，不愿意”。won’t=will not意为“不会, 不能”， will在这里表示能力、功能。例如：This auditorium will seat one thousand people. 这个礼堂能容纳一千人。这句话意思是“这扇窗不能打开”，故选C项。 2．—What’s wrong with you? —Oh, I am sick. I ________ so much ice cream just now. A．shouldn’t eat B．mustn’t eat C．couldn’t have eaten D．shouldn’t have eaten 【答案】D 【解析】 【详解】 考查情态动词和虚拟语气。句意：——你怎么了？——我生病了，我刚才不应该吃那么多冰激凌。A. shouldn’t eat不应该吃；B. mustn’t eat禁止吃；C. couldn’t have eaten不可能吃；D. shouldn’t hav e eaten本来不应该吃。根据just now可知，是发生在过去，故选D。 3．No student ________ go out of school to have lunch without permission of the headteacher. A．might B．must C．shall D．could 【答案】C 【解析】 【详解】 考查情态动词。句意：未经校长允许，任何学生不得离开学校去吃午饭。might可能；must一定，必须；shall会，将；could能够。本句是一条禁令。shall用于肯定句并且主语是第一、三人称时，表示允诺，警告，劝告等语气。故选C。 4．Mark ______ have hurried. After driving at top speed, he arrived half an hour early. A．needn’t B．wouldn’t C．mustn’t D．couldn’t 【答案】A 【解析】
初中 情态动词讲解分析(全)
情态动词 1. can (could) 1）表示能力，could主要指过去时间。 Two eyes can see more than one. 两只眼比一只眼看得清。 Could the girl read she went to school? 这女孩上学前能识字吗？ 2）表示可能（理论上或是逻辑判断上）。 The temperature can fall to –60℃, that is 60℃ below freezing. 气温可降至—60℃，也就是零下60℃。 He can’t (couldn’t) have enough money for a new car. 他不可能有足够的钱买新车。 You mustn't smoke while you're walking around in the wood. You could start a fire. 在林子里走时勿吸烟，那样可能会引起火灾。 3）表示允许。 Can I have a look at your new pen? 我可以看一看你的新钢笔吗？ He asked whether he could take the book out of the reading-room. 他问他可不可以把书带出阅览室。 4）表惊异、怀疑、不相信等态度。主要用于否定句、疑问句或感叹句中。 Where can (could) they have gone to? 他们会去哪儿了呢？ He can’t (couldn’t) be over sixty. 他不可能超过六十岁。 How can you be so careless? 你怎么这么粗心？ 5）比较委婉客气地提出问题或陈述看法。 Can (Could) you lend me a hand? 帮我一把好吗？ I’m afraid we couldn’t give you an answer today. 恐怕我们今天不能给你答复。2. may (might) 1）表允许，might可以指过去时间，也可指现在时间，语气更委婉。 You may take whatever you like. 你喜欢什么就拿什么。 He told me that I might smoke in the room. 他告诉我可以在房间里抽烟。 May (Might) I ask for photo your baby? 我可以要一张你宝宝的照片吗？ 在回答以may引起的问句时，多避免用这个词，而用其它方式，如Yes, please. / Certainly.
初中英语情态动词详细用法归纳(含练习及答案)
初中英语情态动词详细用法归纳（含练习及答案） 1. can 的用法： （1）.表示能力、许可、可能性。表示能力时一般译为“能、会”，即有种能力，尤其是生来具备的能力.如：She can swim fast, but I can’t . 她能游得很快，但我不能。 I can see with my eyes. 我用眼睛看。could是can的过去式。表示过去的能力。 be able to do sth. 常常指经过努力，花费了时间和劳力之后才能做到某事。is/am/are able to do sth was/were able to do sth. （2）.表示许可，常在口语中。如：You can use my dictionary. 你可以用我的字典。 （3）.表示推测，可能性，意为“可能”，常用于否定句和疑问句中，此时can’t 译为“ 不可能”。如：Can the news be true? 这个消息会是真的吗？—Can it be our teacher?那个人有可能是我们老师吗？—No, it can’t be our teacher. He is on a visit to the Great Wall.不可能。咱们老师正在游览长城呢。 【例题】—I think Miss Gao must be in the library. She said she would go there. —No. She __be there, I have just been there. A.can’t B.mustn’t C.needn’t D.wouldn’t 【解析】根据下文“我刚去过那儿”可知，应为“ 不可能”，can’t 表示推测[答案] A could的用法： （1）.can的过去式，意为“ 能、会”，表示过去的能力。如：He could write poems when he was 10. 他十岁时就会写诗。 （2）. could在疑问句中，表示委婉的语气，此时could 没有过去式的意思。如:Could you give me a hand? 你能帮我个忙吗？—Could I use your pen? 我能用一下你的钢笔吗? —Yes, you can.可以。（用could问，不能用could答。） 2. may的用法： （1）.表示请求、许可，比can 正式，如：May I borrow your bike? 我可以借你的自行车吗？You may go home now. 现在你可以回家了。 【例题】—_______ I borrow your MP3? —Sure . Here you are. A. May B.Should C.Must D. Would 【解析】在此处表示请求，意为“ 做……可以吗”。答案：A (2) .表示推测，谈论可能性，意为“ 可能，或许”，一般用于肯定句中。如：It may rain tomorrow . 明天可能会下雨。She may be at home. 她可能在家呢. may not 翻译为“可能不” (3) .may的过去式为might ，表示推测时。可能性低于may。如：He is away from school. He might be sick. 他离开学校了，可能是他生病了。 (4) . 表示希望、祈求、祝愿，常可译为“祝愿”。通常是用may +主+V 例如：May you have a good time. 祝你过得愉快。May you be happy! 祝你幸福！May you succeed！祝你成功！ 3. must的用法： (1).must 表示主观看法，意为“必须、一定”。如：You must stay here until I come back.在我回来之前你必须呆在这儿。Must I finish my homework right now? 我必须现在交作业吗？(must引导的疑问句) 肯定回答：yes ,you must. 否定回答：No, you needn’t/ don’t have to (2) 其否定形式mustn’t表示“ 一定不要” “千万别” “禁止, 不许”. 如：You mustn’t play with fire. 你不许玩火。You mustn’t be late. 你一定不要迟到。 (3)must表示有把握的推测，用于肯定句,指百分百肯定。如: The light is on, so he must be at home now.灯亮着，他现在肯定在家。 （4）①must 和have to 都有”必须”的含义，但侧重点不同： must强调说话者主观(自己）的看法。 have to强调客观（外力作用）的需要，也可以翻译为“不得不”。
高中情态动词用法总结
情态动词的用法 A. can; could; be able to Can 1. 表示“能力”(此时过去时是could) 2.表示许可、请求，“可以”。--Can/Could I go now? 3 表示推测, 把握很大,could也可表推测,把握比can小。 --Look! Someone is coming! Who can it be? --It can?t be him. He has gone to Paris.（不可能）/ He could be here soon. 他很快就来。 4 表示感情（惊异/不耐烦）“究竟，到底”（主要用于否定句，疑问句和感叹句中。） How can you be so foolish? What can it possibly be? 到底那是怎么一回事? They can?t be working at this time of day. 5 肯定句中客观存在的可能性。“有时会，偶尔” It can be quite windy there, especially in spring. Could 1.表示能力，can 的过去式，过去能够 Could you speak English then? 那时候你会说英语吗? 2. 请求允许（委婉语气）（问句的答语不用could，而用can，） Could [Can] I use your pen? ” “Yes, of course you can.”/ No, I?m afraid not. 3. 表示推测可能性（肯，否，疑） We could go there this summer. 今年夏天我们可能要去那儿。(将来可能性) You could be right, but I don?t think you are. 你可能是对的，但我并不认为你是对的。 4. could have done ①对过去推测，可能已经。。。②本来能够却没做，差点就 He can?t [couldn?t] have seen her there. 他不可能在那儿见到她。 He could have gone home. 他可能已回家了 He could have told her, but he didn?t choose to. 他本来可以告诉她的，但他却没有。 B. may 和might 1.表示允许﹑许可，might提问更委婉。 ---May/Might I watch TV after supper? ---Yes, you may./ Yes, please./ Certainly. ---No, you mustn't. / No, you may not. / No, you can?t./No, you?d better not. 2. 表示推测，有“或许”、“可能”的意思。might把握更小。疑问句用can/ could. ?He may/might be right./ I hear there may be a few copies left. ?He may/might come today (tomorrow). 3. may表示祝愿，倒装。May +主语+动词原形。May you succeed!/May you all be happy. ☆may [might] as well…意为“不妨”、“还是…为好”等，用might 比用may 语气更委婉。如：I?m ready，so I might as well go now．我已准备好，因此不妨现在就走。 There?s nothi ng to do, so I may [might] as well go to bed. ☆may well... 完全可能 C. must, have to Must 1. 表示“必须”。否定式mustn?t表示“不可以”、“不准”、“禁止”等。 Everybody must obey the rules../You mustn?t lend it to others./You mustn?t speak like that to your mother. ☆在回答有“must” 的询问时，--- Must I go now? --- Yes, you must. ---No, you needn?t. / No, you don?t have to.
初中英语情态动词讲解练习和答案解析
情态动词 一、考点、热点回顾 【词汇辨析】 1.sometimes/ some times/sometime/ some time: sometimes: “有时”=at times. He is sometimes late for school. some times: “几次” I have been to Nanjing some times. sometime: “某一时刻” I bought it sometime last spring. We’ll meet again sometime next week. some time: “一段时间” We have to stay here for some time. 2. many/ much/ a few/ a little/ few/ little (1)many修饰可数名词，much修饰不可数名词；都表示许多。例如： 许多书许多牛奶 (2)a few和a little都表示"有一点儿"，侧重于肯定，相当于"some"，但 a few修饰可数名词， a little修饰不可数名词，例如： He has a few friends in London. ---Would you like some coffee? ---Yes, just a little. (3)few和little表示"几乎没有"，侧重否定。few后接可数名词，little后接不可数名词。例 如： He is a strange man. He has few words. Hurry up, there is little time left. 【固定搭配】加-ing be busy doing sth.忙于做…… eg: Mother is busy cooking. look forward to + doing sth. 期待做…… eg: Tom l ooks forward to seeing his father again. Thank you for (doing) sth. 为了…感谢你 eg: Thank you for your help. have fun doing sth愉快地做某事 eg: I had great fun playing in the water. =have a good time doing sth eg: I had a good time playing in the water. have problem/trouble/difficulty (in)doing sth.做某事有困难 eg: I have difficulty finishing my homework in 2 hours. 【情态动词】又叫情态助动词。它们具有以下特点： ⑴ 它们必须与其他动词连用，即：情态动词＋动词原形 表示说话人对所述动作的看法，如需要、可能、意愿或怀疑等。 ⑵绝大多数情态动词没有人称和数的变化，即第三人称单数不加-s （以be和have 开头的情态动词短语除外）。 ⑶ 在意义上，情态动词具有“多义性”。 例：can既可表示能力，又可表示可能、允许等意义。 【情态动词的基本用法】
初中英语情态动词详细用法归纳(含练习及答案)(直接打印版)
初中英语情态动词详细用法归纳（含练习及答案）（直接打印版） 情态动词有具体的词义，但也同助动词一样，需要与其他词语一起构成句子的谓语，另外情态动词没有人称和数的变化，情态动词后必须跟动词原形。 1. can 的用法： （1）.表示能力、许可、可能性。表示能力时一般译为―能、会‖，即有种能力，尤其是生来具备的能力，此时may 和must 均不可代替它。如：She can swim fast, but I can’t . 她能游得很快，但我不能。I can see with my eyes. 我用眼睛看。 （2）.表示许可，常在口语中。如：You can use my dictionary. 你可以用我的字典。 （3）.表示推测，意为―可能‖，常用于否定句和疑问句中，此时can’t 译为― 不可能‖。如：Can the news be true? 这个消息会是真的吗？—Can it be our teacher?那个人有可能是我们老师吗？—No, it can’t be our teacher. He is on a visit to the Great Wall.不可能。咱们老师正在游览长城呢。 【例题】—I think Miss Gao must be in the library. She said she would go there. —No. She __be there, I have just been there. A.can’t B.mustn’t C.needn’t D.wouldn’t 【解析】根据下文―我刚去过那儿‖可知，应为― 不可能‖，can’t 表示推测[答案] A 2. could的用法： （1）.can的过去式，意为― 能、会‖，表示过去的能力。如：He could write poems when he was 10. 他十岁时就会写诗。 （2）. could在疑问句中，表示委婉的语气，此时could 没有过去式的意思。如:Could you do me a favour? 你能帮我个忙吗？—Could I use your pen? 我能用一下你的钢笔吗? —Yes, you can.可以。（注意回答） 3. may的用法： （1）.表示请求、许可，比can 正式，如：May I borrow your bike? 我可以借你的自行车吗？You may go home now. 现在你可以回家了。 【例题】—_______ I borrow your MP3? —Sure . Here you are. A. May B.Should C.Must D. Would 【解析】在此处表示请求，意为― 做……可以吗‖。答案：A (2) .表示推测，谈论可能性，意为― 可能，或许‖，一般用于肯定句中。如：It may rain tomorrow . 明天可能会下雨。She may be at home. 她可能在家呢. (3) .may的过去式为might ，表示推测时。可能性低于may。如：He is away from school. He might be sick. 他离开学校了，可能是他生病了。 (4) . 表示希望、祈求、祝愿，常可译为“祝愿”。通常是用may +主+V 例如：May you have a good time. 祝你过得愉快。May you be happy! 祝你幸福！May you succeed！祝你成功！ 4. must的用法： (1).must 表示主观看法，意为―必须、一定‖。如：You must stay here until I come back.在我回来之前你必须呆在这儿。Must I hand in my homework right now? 我必须现在交作业吗？ (2) 其否定形式mustn’t表示― 一定不要‖ ―千万别‖ ―禁止, 不许‖. 如：You mustn’t play with fire. 你不许玩火。You mustn’t be late. 你一定不要迟到。 （3）对must引导的疑问句，肯定回答为must，否定回答为needn’t 或don’t have to .如：—Must I finish my homework?我现在必须完成作业吗？—No, you needn’t.不，你不必。 (4)must表示有把握的推测，用于肯定句。如: The light is on, so he must be at home now.灯亮着，他现在肯定在家。 注意其反意问句的构成形式： 当must表示肯定的判断、推测时，其反意疑问句要用实际问句的助动词来构成。如：She must have seen the film before，hasn’t she?(注意反意疑问句的后半部分)You must have met uncle Wang in the shop yesterday，didn’t you? (注意反意疑问句的后半部分)
英语情态动词的用法大全附解析
英语情态动词的用法大全附解析 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．—How amazing this robot is! —Wow, it has video cameras in its eyes, so it “see” and interact with pe ople. A. may B. can C. must D. should 【答案】 B 【解析】【分析】句意：—这个机器人多么惊人啊！—哇，在它的眼睛里有摄像机，因此它能看见和人打交道。A. may 可以，可能；表示许可，B. can 能；表示能力，C. must 必须；D. should应该；根据it has video cameras in its eyes,可知是有能力看见，故选B。 【点评】考查情态动词辨析。熟记情态动词的含义和用法。 3．—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。 4．— Sorry, I forgot to take money with me. Maybe I can't buy the book you like. — Mum, you ______ worry about it. We can pay by Alipay （支付宝）. A. can't B. needn't C. mustn't D. shouldn't 【答案】 B 【解析】【分析】句意：——对不起，我忘记带钱了。也许我不能买你喜欢的书。——妈妈，你不用担心。我们可以用支付宝支付。A. can't不能，指不允许或否定推测；B. needn't 不需，指没必要；C. mustn't不能，表禁止；D. shouldn't不应该，表建议。根据句意语境，本句是说妈妈不需要担心，故答案为B。 【点评】考查情态动词。理解句意并掌握情态动词的意义和用法区别。
2021年初中英语语法知识—情态动词的图文解析
一、选择题 1．One ______ easily lose his way when he visits or comes to a new place. A．may B．must C．need D．should 2．—Is that Kate’s green bike? —It ____________be hers. She likes pink. A．can’t B．could C．mustn’t D．might 3．—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 4．---Mum, must I finish my homework today? ---No, you . Tomorrow is Sunday and you may have a rest today. A．shouldn’t B．mustn’t C．can’t D．don’t have t o 5．A: Is Jim coming by train? B: I’m not sure. He _______ drive his car. A．must B．may C．need D．should 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．From March 23rd, 2013, anyone under the age of 14 ________ go into Disneyland alone. A．couldn’t B．mustn’t C．needn’t D．mightn’t 8．—Can I take some milk and biscuits to the reading room? —No, our school has a rule that students _______ eat or drink there. A．can’t B．mustn’t C．needn’t D．may not 9．— Mom, I got a big box from express(快递). What is it? —I’m not sure. It ________be a present from your grandmother. A．should B．might C．must D．will 10．(2018·山东临沂) Could you please speak a little louder? I ______ hear you very well. A．can’t B．must n’t C．shouldn’t D．needn’t 11．-Could you help me with my English homework, Nancy? -Of course I____________. Glad to help. A．could B．can C．must D．do 12．My head teacher has made a set of rules to show what we students ________ and ________ not do in class. A．must; must B．will; will C．need; need D．might; might 13．Since the road is muddy,it ________last night, ________? A．must be rained; wasn’t it B．must have rained; didn’t it C．must rained; didn’t it D．must have rained; wasn’t it
初中英语情态动词专项练习题
初中英语情态动词专项练习题 情态动词:can could may might will would must have to need had better should 情态动词特点 1.情态动词没有人称和数的变化. 2.情态动词后必须跟动词原形。 考点一：can，could, may，must 等情态动词的用法： 1. can 的用法： （1）.表示能力,译为“能、会”，即有种能力，尤其是生来具备的能力。 She can swim fa st, but I can’t . 她能游得很快，但我不能。 I can see with my eyes. 我用眼睛看。 （2）.表示许可，常在口语中。 You can use my dictionary. 你可以用我的字典。 （3）.表示推测，条件: 常用于否定句和疑问句中，此时can’t 译为“ 不可能”。 Can the news be true? 这个消息会是真的吗？ —Can it be our teacher?那个人有可能是我们老师吗？ —No, it can’t be our teacher. He is on a visit to the Great Wall.不可能。咱们老师正在游览长城呢。【例题】—I think Miss Gao must be in the library. She said she would go there. —No. She __be there, I have just been there. A.can’t B.mustn’t C.needn’t D.wouldn’t 【解析】根据下文“我刚去过那儿”可知，应为“ 不可能”，can’t表示推测[答案] A 2. could的用法： （1）.can的过去式，意为“ 能、会”，表示过去的能力。 He could write poems when he was 10. 他十岁时就会写诗。 （2）. could在疑问句中，表示委婉的语气，此时could 没有过去式的意思。 Could you do me a favour? 你能帮我个忙吗？ —Could I use your pen? 我能用一下你的钢笔吗? —Yes, you can.可以。（注意回答,用could提问,必须用can来回答） 3. may的用法： （1）.表示请求、许可，比can 正式 May I borrow your bike? 我可以借你的自行车吗？ You may go home now. 现在你可以回家了。 【例题】—_______ I borrow your MP3? —Sure . Here you are. tA. May B.Should C.Must D. Would 【解析】在此处表示请求，意为“ 做……可以吗”。答案：A
初中情态动词用法总结
专项：情态动词 一考点：情态动词的用法和辨析，情态动词表示推测和可能，由情态动词引导的一般疑问句的回答。 二类型：1 只是情态动词：can, could, may, might, must 2 可做情态动词，可做实义动词：need, dare 3 可做情态动词，可做助动词：will, would, shall, should 4 特殊：have to, ought to, used to 三特征：1 有一定的词义，但不能单独作谓语，必须与行为动词和系动词连用构成谓语。 2 无人称和数的变化。（have to 除外） Eg: He has to stay here. 3 后接动词原形。 4 具有助动词作用，可构成否定，疑问或简短回答。 四用法： 1. can ①表示能力，“能，会”。Eg : Can you play basketball? ②表示怀疑，猜测，常用于否定句或疑问句。 Eg :Li hua can’t be in the classroom. ③表示请求，允许，多用于口语，译“可以”= may. Eg: you can go now. ④can 开头的疑问句，肯定句，否定句用can或can’t. 2.could①can 的过去式，表示过去的能力。 Eg :I could swim when I was seven years old. ②could 开头的疑问句，肯定和否定回答用could, couldn’t如果could 表示现在的委婉，用can 回答。 Eg: Could I have a drink? Yes, you can. 3.may①表示推测，“可能，也许”，用于肯定句。 Eg: He may come tomorrow. ②表示请求，“许可,可以”。Eg: May I borrow your book? 注：表示请求，许可时，主语为第一人称的一般疑问句，否定回
初中英语情态动词讲解
情态动词 （一）情态动词的定义: 情态动词表示说话人对某一动作或状态的态度。 （二）情态动词的特点 1. 情态动词有一定的词义。 2. 情态动词不能单独做谓语，它必须和其他动词的原形一起构成谓语。 3. 情态动词没有人称，数的变化。 （三）情态动词的结构和意义 1.情态动词的基本句型 ?肯定句：主语+情态动词+动词原形+...... ?否定句：主语+情态动词+not+动词原形+...... ?疑问句：情态动词+主语+动词原形+...... 2. 情态动词的意义 must“必须”；can/could“能，会”；may/might “可以”；should“应该”； would“愿，要”；have to“不得不”；need“需要” （四）情态动词的基本用法 1.can (could主要指过去时间) 1）表示人或物本身所具有的能力，意为“能，能够，会” : Two eyes can see more than one. / I can swim very well. 2）表示可能（理论上或是逻辑判断上） He can’t (couldn’t) have enough money for a new car. 3）表示允许： Can I have a look at your new pen? He asked whether he could take the book out of the reading-room. 4）表示对现在动作或状态的猜测，主要用于否定句和疑问句中或感叹句中: He can’t (couldn’t) be over sixty.他不可能超过六十岁。 5）could表示比can更委婉客气的提出问题或陈述看法，指的是现在时间。 Can (Could) you lend me a hand? 帮我一把好吗？ 2. may (might) 1）表允许，询问或说明一件事可不可以做，might指过去时间；但在疑问句中might也可指现在时间，语气比may更委婉。 May (Might) I ask for a photo of your baby? 我可以要一张你宝宝的照片吗？ 在回答以may引起的问句时，肯定回答是一般可仍用may,或Yes, please. / Certainly./Sure./Of course. ； 否定回答根据说话人的语气由强到弱分别选用: must not(mustn’t)（禁止）/ had better not（最好别）/ may not（不行） 2) may表可能,但所表示的可能性不如can所表示的那样肯定。might可以指过去时间，也可以指现在时间，但语气更加不肯定。 He may be at home. 他可能在家。 They might be having a meeting, but I’m not sure.他们有可能在开会，不过我不肯定。 3. must（have to表示客观需要） 1）表示“必须”（主观看法）时，用于肯定句或疑问句；用于否定句时表示“禁止”。 We must do everything step by step. 我们一切都必须循序渐进地做。 You must get home before 9:00. 2）表示揣测。意为“想必、准是、一定”等，只用于肯定句。 He must be ill. He looks so pale. 他准是病了。他的脸色苍白。 3)must的疑问句，肯定回答用must，否定回答用needn’t或don’t have to。 4. should 1）表责任或义务，意为“应该”，用于各种人称。
初中英语情态动词用法归纳
初中英语情态动词用法归纳 话题：动词情态教育学习 情态动词有具体的词义，但也同助动词一样，需要与其他词语一起构成句子的谓语，另外情态动词没有人称和数的变化，情态动词后必须跟动词原形。考点一：can，may，must 等情态动词在陈述句中的用法：1. can的用法：（1）.表示能力、许可、可能性。表示能力时一般译为“能、会”，即有种能力，尤其是生来具备的能力，此时may和must均不可代替它。如：She can swim fast, but I can’t .她能游得很快，但我不能。I can see with my eyes.我用眼睛看。（2）.表示许可，常在口语中。如：You can use my dictionary.你可以用我的字典。（3）.表示推测，意为“可能”，常用于否定句和疑问句中，此时can’t译为“不可能”。如：Can the news be true?这个消息会是真的吗？—Can it be our teacher?那个人有可能是我们老师吗？—No, it can’t be our teacher. He is on a visit to the Great Wall.不可能。咱们老师正在游览长城呢。【例题】—I think Miss Gao must be in the library. She said she would go there.—No. She __be there, I have just been there. A.can’t
B.mustn’t C.needn’t D.wouldn’t【解析】根据下文“我刚去过那儿”可知，应为“不可能”，can’t表示推测[答案] A2. could 的用法：（1）.can的过去式，意为“能、会”，表示过去的能力。如：He could write poems when he was 10.他十岁时就会写诗。（2）. could在疑问句中，表示委婉的语气，此时could 没有过去式的意思。如:Could you do me a favour?你能帮我个忙吗？—Could I use your pen?我能用一下你的钢笔吗?—Yes, you can.可以。（注意回答）3. may的用法：（1）.表示请求、许可，比can正式，如：May I borrow your bike?我可以借你的自行车吗？You may go home now.现在你可以回家了。【例题】—_______ I borrow your MP3?—Sure . Here you are.A. May B.Should C.Must D. Would【解析】在此处表示请求，意为“做……可以吗”。答案：A(2) .表示推测，谈论可能性，意为“可能，或许”，一般用于肯定句中。如：It may rain tomorrow .明天可能会下雨。She may be at home.她可能在家呢.(3) .may的过去式为might，表示推测时。可能性低于may。如：He is away from school. He might be sick.他离开学校了，可能是他生病了。(4) .表示希望、祈求、祝愿，常可译为“祝愿”。通常是用may +主+V例如：May you have a good time.祝你过得愉快。May you be happy!祝你幸福！May you succeed！祝你成功！4. must的用法：(1).must表示主观看法，意为“必须、一定”。如：You must stay here until I come back.
新初中英语语法知识—情态动词的全集汇编及解析(2)
一、选择题 1．You should________ the teacher________being late for school. A．apology to, about B．apologize to, for C．apologies to, for D．apologize to, on 2．-Listen! A wolf is crying! -It _______ be a wolf, because a wolf never comes out at this time. A．mustn’t B．needn’t C．can’t D．don’t 3．— 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 4．—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 5．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 6．You______ worry about your lessons. Be careful next time and you will get a good mark. A．don’t need to B．not need C．needn’t to D．don’t need 7．---Mum, must I finish my homework today? ---No, you . Tomorrow is Sunday and you may have a rest today. A．shouldn’t B．mustn’t C．can’t D．don’t have to 8．A: Is Jim coming by train? B: I’m not sure. He _______ drive his car. A．must B．may C．need D．should 9．—Doesn’t Frank like staying at home and looking after his little sister? —_______, but he ________ because both of his parents work. A．Yes; has to B．No; has to C．Yes; doesn’t have to D．No; doesn’t have to 10．—Have you heard about the temperature of the earth will rise to 59℃ in 2020? —Don’t worry! The news _______ be true. A．must not B．may not C．needn’t D．will not 11．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 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．He like coffee. I see him drink a cup at times.