当前位置:首页 >> 高中教育 >>

情态动词 Model Verb


情态动词
情态动词(model verb)用来表示能力, 允许,可能,必须,劝告,意愿等概念或态 度.主要的情态动词有can (could),may (might),shall (should),will (would), must,ought to,need,dare等.情态动词没有 人称和数的变化,其后常跟不带to的不定式.

1. 情态动词的

一般用法:
(1) 表示能力: can, could, be able to He is over 80 but still can read without glasses. She couldn't come yesterday. He can't come tomorrow.

can/could 与be able to 用法比较
1)be able to 除有一般现在时,一般过去时,一般将来 时外,还可有现在完成时,不定式,动词-ing 形式等. This is the information I've been able to get so far. To be able to ride a bike, she practiced a lot. Just being able to drive a horse, a cart isn't much help to us. 2) could表示过去总的,经常性的能力;was/were able to 表示过去具体情况下具有的能力,并且做了某动作. He could speak French, so he was able to show the French lady the way. 3) 表示将来的能力常用will be able to. When will you be able to take us to town?

(2) 表示许可:can/could, may/might; can't, may 表示许可:can/could, not, mustn't, must not
1) 征询"许可"或给予"许可"可用can/could 或may/might 表示. May 用于正式场合,can 用于非正式场合,could 用于客气的询问, might 极少用. You can go at four o'clock. Could I borrow your pen? Students may take 3 books each. Might I ask whether you are using the typewriter? 2) 表示"不允许"用 can't, may not, mustn't; must not 语气重. You can't leave the table unless you finish your meal. Put that cigarette out. You must not smoke near a petrol pump! 3) 表示过去"许可"不用could,might,要用其他表达方式. We had been/were given permission to speak to the patient. 但在间接引语中表达过去"许可",可用could,might. The nurse said that we could/might speak to the patient for just a few minutes.

(3) 表示可能性:may/might, can/could, must; 表示可能性:may/might, can't
1)may, might 用来推测现在"可能";may比might表示的可 能性大些. Why isn't John in class? He may/might be sick. maybe是副词,不是情态动词.Maybe he is sick. 2) 在日常口语中常用can/could 表示"可能". You can/could walk for miles in the country without meeting anyone. Can the news be true? No, it can't be true. 3) must表示可能性最大,"必定";否定形式用can't表示 "肯定不","必定不会". You must be hungry after a long walk. The phone is ringing, but there is no answer. She can't be at home.

(4)表示必须和需要:must, have to, need )表示必须和需要:must,
1)must表示说话人认为"必须";否定回答 时用needn't "不必". You must be here at nine o'clock. Must you go soon? No, I needn't go yet. 2) have to 表示他人或客观情况要求"必须". I have to be back at school by eight. I have a lot of work to do tonight. We don't have to wear uniforms in school. 口语中常用have got to 表示"必须". I have got to leave now. I have a meeting in ten minutes.

3) need 表示动作者"需要","有必 要",用于否定句或疑问句;肯定回答 用must,否定回答用needn't. Need he go now? Yes, he must. No he needn't. need 常用作实义动词. You need to learn the value of time. You didn't need to tell him the news. Does she need to go?

(5)表示责任和劝告: should, ought to, must, had better )表示责任和劝告: 1) 用should和ought to 表示责任和劝告,后者的 语气重些 You should/ought to do as you are told. Such things shouldn't/ought not to be allowed. 2) 有时也用must 表示责任和劝告. must You must see the movie. It's wonderful. 3) 口语中也常用had better 表示劝告,意为"最 好做/不做某事". You had better take care of yourself. You'd better not make a mistake next time. Hadn't you better see who is at the door?

(6)表示建议:shall,may/might as well, )表示建议:shall, may/might just as well 1) "shall I/we…" 表示征求对方对建议的看法. Shall we carry the boxes into the house? Let's go, shall we? 2) may/might as well, may/might just as well 表 示推荐更佳方案,建议另一种做法,意为"倒 不如……","……不也一样吗?". We may as well stay here tonight. You might just as well tell the truth.

(7) 表示许诺:shall 表示许诺:shall shall用于第二,三人称,表示说话 人的许诺. You shall have your money back next week. If he passes the exam, he shall have a holiday.

(8) 表示意愿:shall, will/would 表示意愿:shall,
1) you/he/they shall 表示说话人的强烈意愿,甚 至威胁. You shall pay for this. They shall do what I tell them to do. 在法律条文,规章制度中,shall 表示"必 须". Each competitor shall wear a number.

will/would 表示动作者愿意. I will lend you the book if you need it. I won't do it again. I have been trying to open the door, but the key won't turn. "will you/would you…" 在下列句中表示客气的建 议,询问. Will you please have a drink? Would you please pass me the salt? Would you like a cup of tea? Would you mind if I opened the window? Would you mind opening the window? Would you mind my opening the window? would 还表示过去的习惯.等于used to On Sundays he would get up early and go fishing.

2)

(9)表示勇敢:dare (9)表示勇敢:dare
dare 表示"敢于",用于否定句,疑问句或条 件句. He dare not try. How dare you open the letter? If you dare say a word, I'll strike you down. dare 还常用作实义动词. He dare to surf in heavy waters. daresay 或 dare say,表示probably, I suppose. I dare say he will come home late.

2. 情态动词的特殊用法
(1) 情态动词+不定式完成时 1) can/could, may/might, must + have + 动词的过去分词 用于肯定句:表示对过去事件的主观判断,推测过去某动作 "可能","也许","一定"已发生. Tom could have taken the dictionary. I saw him using it last Sunday. I can't find my sunglasses. I may/might have left them at the restaurant yesterday. You screamed in your sleep last night. You must have had a terrible dream. 用于否定句:表示推测过去某动作"可能","也许", "一定"没有发生. She couldn't have finished her work so soon. She may not have seen you. Dad mustn't have washed the dishes last night.

2) should/ought to + have + 动词的过去分词. 用于肯定句:评论过去"应该做"而实际并未 做的动作,意为"本应该". I didn't ask her. It's a pity. You should have asked her. You ought to have asked everyone. 用于否定句:评论过去"不应该做"而实际做 了的动作,意为"本不应该". I only told Mike. You shouldn't have told anyone. You ought not to have told anyone.

3) needn't + have + 动词的过去分词 对过去已经发生的动作进行评论,认为 "无须发生","不必做". I needn't have put on my best suit to go to the party; most of the guests were wearing jeans. We went to the meeting, but it had been cancelled. Oh, so you needn't have gone.

(2) 情态动词 + 不定式进行时
表示推测或评论某动作现在是否正在进 行. She may be washing her clothes. He can't be working now. He must be studying in the library. They shouldn't be watching TV now. They should be doing homework.

(3) 情态动词 + 不定式完成进行时
情态动词 + have been + 动词的现在分词,表示推 测或评论过去某动作是否正在进行或一直在进行. He may have been buying stamps in the post office when you saw him. She must have been working then. She should have been attending a meeting yesterday morning. They shouldn't have been chatting while working.

相关文章:
情态动词 Modal verb
情态动词 Modal verb 情态动词的命题热点有: 情态动词基本用法辨析,情态动词表示态度的用法辨析,情 态动词表示推测的用法辨析,情态动词在虚拟语气中的运用。 情态...
_情态动词(Modal Verb)
情态动词(Modal Verb)情态动词是一种本身有一定的词义, 但要与动词原形及其被动语态一起使用, 给谓语动 词增添情态色彩, 表示说话人对有关行为或事物的态度和看法...
Model Verbs 题
Model Verbs 题_英语学习_外语学习_教育专区。Model Verbs shall ※用于一三人称...作情态动词,主要用于疑问句、否定句、条件从句中, 一般不用于肯定句中。其疑问...
model verb 2
Model Verb 18页 2财富值 Model Verb 18页 免费 model verb 43页 免费 Model Verb Exercise 8页 免费 Model Verb 情态动词 18页 5财富值 情态动词(model ve...
情态动词教案1
DSE 金牌英语初二专题系列之●学而时习 一、情态动词的特征 Model Verb( 情态动词 1) 1、有一定的词义,均没有人称和数的变化(have to,be able to 除外) ...
情态动词 modal verbles
情态动词 modal verbles 知识总结情态动词 modal verbles 知识总结隐藏>> 情态动词 1.--Is John coming by train? --He should, but he ___ not. He like...
动词和情态动词with key
动词情态动词(The Verb and The Model Verb) 1.He ___ till evening without moving,without even thinking. A.lied B.lay C.laid D.lain 2.The eagle...
情态动词
情态动词_英语学习_外语学习_教育专区。情态动词和虚拟语气 (一) 情态动词 modal verbs (mood) (1) Will, would, shall, should, can, could, may, might,...
The Modal Verb 情态动词
The Modal Verb 情态动词 1.情态动词概念及特点 情态动词概念及特点 情态动词是表示能力,义务,必须,猜测等说话人的语气或情态情感的动词。 ①情态动词动词原形...
情态动词归纳_图文
4.情态动词+be done This word can also be used as a verb. 这个词也可以用作 2 动词。 Something must be done to stop pollution. 必须采取措施 来制止...
更多相关标签:
情态动词 | 情态动词的用法 | 情态动词有哪些 | 情态动词练习 | 情态动词练习题 | 情态动词表推测 | 初中情态动词 | 什么是情态动词 |