高中英语情态动词详解及练习
高中英语情态动词详解
1. 表示请求和允许: can, could , may,might. 过去式使语气更委婉，答语应用原形。
--- Could I use your computer tomorrow morning?
--- Yes, you can.( 否定回答可用：No, I’m afraid not.)
1)can表示理论上的可能性，指某事或情况可能发生，但并不说明实际上真的发生.
Children can be very tiring.
2)对现在事情的推测：情态动词+do
对过去事情的推测：情态动词+have done
对已完成事情的推测：情态动词+have done
3)反意问句：
He may know the plan, doesn’t he?
You must have studied English before, haven’t you?
You can’ t have been caught in the rain last night, were you?
3．can & be able to
在肯定句中can表示有“能力”做，be able to表示通过想办法/努力等而能够做成了某一件事，相当于managed to do…或succeeded in doing sth.
Birds can fly.
The fire spread through the hotel very quickly but everyone was able to get out.
4. may / might as well do sth“还是…好”、“不妨”
You might as well tell me the truth. 你还是把真相告诉我的好。
5. must和have to
1) must表示的是说话人的主观看法, 而have to强调客观需要。
2）否定形式含义不同。mustn’t禁止，不许可，don’t have to不必
3) must 偏要（做令人不快的事）eg. Must you shout so loudly?
6. shall和should
1)表示说话人征求对方意见和向对方请示，用于第一、三人称。
When shall my father be able to leave hospital?
Shall2) 用于第一、三人称2) 用于第二、三人称,表示说话人给对方的命令、警告、允诺或威胁以及说话人的决心。
You shall go with me (命令)/ You shall have the book when I finish it.33（允诺）
He shall be punished （威胁）/ Nothing shall stop me from doing it. (决心)
3) 规定（在条约、规则、法律）
1)表示劝告和建议“应该”
2) “按道理应当”“估计”(=ought to)
They should be there by now, I think.
3）用于第一人称表示说话人的一种谦逊、客气、委婉的语气。
I should advise you not do that.我倒是劝你别这样做。
4）在条件句中表示“万一”，主句不一定用虚拟语气。
Ask Tom to ring me up if you should see him. /Should I be free tomorrow, I’ll come.
5）（Why / How + ）should 结构表示说话人对某事不能理解，感到意外、惊异等意思，意为“竟然”，也用在某些从句中。
It seems so unfair that this should happen to me.这种事竟然发生在我身上真不公平。
7. will 和would
1)表示意志和意愿。will 指现在，would指过去。
If you will listen to me, I’ll give you some advice.
2)表示请求、建议，would比will委婉、客气。Will (Would ) you please pass me the book?
3)表示习惯性动作，“总是”“惯于”，will指现在，would指过去。
Fish will die without water.
Every evening, she would sit by the window, deep in thought.
4). 表示功能，意为“能” 或“行”The machine won’t work.
5) 表示预料或猜想。It would be about ten when he left home.猜想他离开家时大约十点。
8. would & used to
1)表示过去持续的状态和情况用used to; would不与表示状态的动词连用。
There used to be a hospital here. / There would be a hospital here.( ×)
2)would 常与often, sometimes, for hours等表示时间的副词（短语）连用。
We would sit in the yard every evening and listened to his story.
3)used to 强调过去的行为同现在的对比，含有“过去怎样，而现在却不这样了”的含义. eg.He will not spend the money on books as he used to.
9. dare 和need
两者作为情态动词都不用于肯定句，常用于否定句、疑问句和条件从句中。习惯用语I dare say（可能，或许，我揣测）除外。实义动词用法同于一般动词。但在否定句中，dare 后的to可省略，即：don’t / doesn’t dare(to ) do…. need 作为实义动词时，用在否定句中时，其后的to不能省略。
He dare go there alone. ( ×)He dares to go there.
He dares not go there alone. ( ×)He dare not go there alone . / He doesn’t dare( to ) go there alone.
He stood there without daring lift his head.(×)He stood there without daring to lift his head. 10．情态动词+ have done,表示过去比较：情态动词+ do , 表示现在或将来。
needn’t have done & didn’t need to do…
She need not have come yesterday. 她昨天本不必要来的。（但却来了）
She didn’t need to come yesterday.她昨天不必来。（实际上也没来）
【各个击破】
1. I lived with my sister this summer and didn’t have to pay rent. So I ____save my salary.
A. could
B. would
C. was able to
D. should
2. --- Look , John’s fallen asleep.
--- Oh, he ______ too late last night.
A. might sit up b. should have sat up c. could sit up D. must have sat up
3. On Sundays when I was a child , Father and I ____ get up early and go fishing.
A. could
B. would
C. might
D. should
4. --- Many people in England love to give advice on weather reporting.
--- Yes, but I think the weather office’s computers ___ be more accurate. (精确的)
A. can
B. must
C. ought to
D. might
5. --- Are you still going to Shanghai for the Spring Festival?
--- Yes, but I really ____ because I have a lot of things to deal with.
A. can’t
B. mustn’t
C. won’t
D. shouldn’t
6. –Well, I forgot to bring my dictionary here yesterday.
-- Actually you ____ it here. You were not allowed to use it.
A. needn’t bring
B. needn’t have brought
C. didn’t need to bring
D. don’t have to bring
7. --- Shall I book the table for the dinner?
---Yes, you____. The restaurant is always full of people.
A. can
B. will
C. must d. need
8. The poor boy ____ the test again; in that case, his mother will be very disappointed.
A. must have failed
B. might fail
C. could have failed
D. should fail
9. --- Why ____ it rain now? I ___ go to the concert at 7.
--- What a pity!
A. can; might not
B. should; needn’t
C. must; can’t
D. need; mustn’t
10. -- We need some fresh air, but the window open.
-- _____I help you ?
A. didn't; Will
B. shan't;Need
C. mustn't ; May
D. won't; Shall
11. -- What do you think of your nephew?
-- He be very naughty but at the same time you __ help liking him.
A. will; will
B. won’t ; can’t
C. may; may
D. can; can’t
12. It was not possible that she____ go down, step by step down the unexpected stairs into the dark below.
A. should dare
B. should dare to
C. must dare
D. must dare to
13. --- I am told that John had another car accident this morning.
--- I believe not. He ____ so careless.
A. shouldn’t have been
B. wouldn’t have been
C. couldn’t have been
D. mustn’t have been
14. ---You ought to have given them some advice.
---____, but who cared what I said?
A. So I ought
B. So ought I
C. So I did
D. So did I
15．---Write to me when you get home.
--______.
A.I must
B. I should
C. I will
D. I can
16. Shut your mouth. Nothing ___ stop me once I have made up my mind.
A. will
B. ought to
C. shall
D. must
17. Keep up a good state of mind even if you _____fail plenty of times.
A. must
B. will
C. can
D. should
18. The policeman told the pupils. “You ____ play football in the street.”
A. can’t
B. needn’t
C. mustn’t
D. shouldn’t
19. If you ___ wait a moment, I will go and find our manager.
A. can
B. should
C. will
D. must
20. Don’t believe him. His story ___ be true.
A. mustn’t
B. needn’t
C. shouldn’t
D. may not
(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】
高中英语情态动词精讲与解析
高中英语情态动词精讲与解析 概说 助动词(auxiliary)主要有两类：基本助动词(primary auxiliary)和情态助动词(modal auxiliary)。基本助动词有三个：do, have和be；情态助动词有十三个：may, might; can, could; will, would; shall, should; must, need, dare, used to, ought to. 上述两类助动词的共同特征是，在协助主动词构成限定动词词组时，具有作用词的功能： 1）构成否定式： He didn't go and neither did she. The meeting might not start until 5 o'clock. 2）构成疑问式或附加疑问式： Must you leave right now? You have been learning French for 5 years, haven't you? 3）构成修辞倒装： Nowhere can he obtain any information about his sister. Hardly had he arrived when she started complaining. 4）代替限定动词词组： A: Who can solve this crossword puzzle? B: Tom can. A: Shall I write to him? B: Yes, do. 情态助动词的特征 基本助动词与情态助动词最主要的区别之一是，基本助动词本身没有词义，而情态助动词则有自己的词义，能表示说话人对有关动作或状态的看法，或表示主观设想： What have you been doing since? （构成完成进行体，本身无词义） I am afraid I must be going. （一定要） You may have read some account of the matter. （或许已经） 除此之外，情态助动词还有如下词法和句法特征： 1）除ought和used以外，其他情态动词后面只能接不带to的不定式。如果我们把ought
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)
初中英语情态动词专项讲解
初中英语情态动词用法详解 【情态动词知识梳理】 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。 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。 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‖。 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 favor? 你能帮我个忙吗？ —Could I use your pen? 我能用一下你的钢笔吗?
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.
高中英语情态动词讲解与练习(含答案)
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高中英语情态动词讲解
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(完整word版)初中英语情态动词的基本用法讲解
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英语情态动词用法总结(完整)
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高中英语情态动词的用法详解
高中英语情态动词用法归纳与练习 A: can / could = be able to 1 表示能力两种时态can (could)，其他时态要用be able to的形式 He can speak French. Was/were able to 可以表示成功做成某事的含义* managed to do / succeeded i n doing With our help, he was able to build the house. 2 表示请求或许可Could 比Can 更加客气* may Can I go now? Yes, you can. 3 表示推测或可能性，常用于否定句和疑问句 Can he be at school? Today is Sunday. He can't be at school. Can’t couldn’t/ Can ? Could? have done There is no light in the room. Can she have gone to bed? She can’t have gone to school----- it’s Sunda y. Could have done 可用在肯定句中表示过去存在的可能性* may have done She could have gone out with some friends yesterday. Could have done 可以表示虚拟语气 某事可能发生（并没有发生） It was silly to throw the TV out of the window. It could have hit somebody. 批评某人没有完成某事(本可以做某事) You are late again. You could have got up earlier. 4 can 表示客观上的可能性* Anybody can make mistakes. B: may and might 1 表示请求和允许类似用法can could(更加口语化) May I watch TV now? Yes, you may. 2 表示可能性; 猜测might比may更加不确定may/might have done 对过去的揣测* He may be busy these days. May not 可能不；不可能；一定不可 3 表示祝愿Wish you success! May you succeed!* C: must and have to 1 表示必须；一定要可以用have to 代替 must 现在；将来的必须而且是主观看法* have to 有多种时态而且强调客观情况 I really must stop smoking now. I had to leave early because I wasn’t feeling well. Must I come here?
英语情态动词用法详解
英语情态动词用法详解 一、单项选择情态动词 1．Look! There are so many mistakes in your composition. You ________ have fixed full attention on it. A．can B．should C．need D．might 【答案】B 【解析】 【详解】 考查情态动词。句意：看！你的作文里有那么多的错误。你本应该把所有的注意力都集中在它上面的。表示“本应该做但实际上没有做”应该用should have done结构，can have done 表示可能；need表示需要；might have done表示可能做过某事；故选B。 2．---Hi, Johnson, any idea where Susan is? ---It is class time, so she __________ in the classroom now. A．can be B．must have been C．might have been D．should be 【答案】D 【解析】 考查情态动词的用法。A. can be可能，可以是；B. must have been一定（对过去事实肯定的推测）；C. might have been可能（对过去事实肯定的推测）；D. should be应该是。句意：—知道苏珊在哪里吗？—现在是上课时间，她应该在教室里。故答案选D。 3．The room is so clean. He ________ have cleaned it yesterday evening. A．will B．need C．can D．must 【答案】D 【解析】 【详解】 考查情态动词表推测。句意：房间如此干净，他一定是昨天晚上打扫过了。must have done 表示对过去发生的事情有把握的猜测，意思是“一定（做过）”，故D项正确。 4．— Excuse me, do you mind if I open the window? — Well, if you __________. I can put on more clothes. A．can B．may C．must D．shall 【答案】C 【解析】