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情态动词dare的语法说明

情态动词dare的语法说明
情态动词dare的语法说明

情态动词dare的语法说明

用法一

用作情态动词,主要用于否定句、疑问句或条件从句中。如:

Dare you ask him? 你敢问他吗?

They dared not come. 他们不敢来了。

If you dare speak to me like that again, you will be sorry. 你敢再这样对我说,你会后悔的。

注:I dare say 是习惯说法,并不一定要译为“我敢说”。它所表示的是一种不肯定的语气,常译为“很可能”、“大概”、“我想”等。有时用作反语。如:

I dare say (that) you are right. 我想你是对的。

Oh, you mean to win? I dare say you will. 啊,你想打赢? 我且看你赢吧。

作为情态动词,dare 没有单数第三人称形式,但有过去式。如:No one dared speak of it. 没有人敢谈及此事。

但是尽管有过去式,人们还是常用现在式表示过去或后接完成式动词。如:

Mother dare(d) not tell father she’d given away his old jacket. 母亲不敢告诉父亲她把他的旧上衣送人了。

I didn’t like their new house though I daren’t have said so. 我不喜欢他们的新房子,虽然我没敢这样说过。

用法二

用作实义动词,意为“敢于”,可以有各种词形变化,其后多接带to 的不定式(有时to 也可省去),可用于肯定句、否定句、疑问句以及各种从句。如:

He didn’t dare (to) go. 他不敢去。

We must dare to think, speak and act. 我们必须敢想,敢说,敢做。

I wonder how he dares (to) say such things. 我纳闷他怎么竟敢说出这样的话来。

The boy stood before the teacher, not daring to look up. 这个小男孩站在老师面前不敢抬头。

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情态动词语法讲解

Modal Verbs 情态动词有can (could), may (might), must (must), have to, shall (should), will (would), need (need), dare (dared), ought to 等。情态动词无人称和数的变化。它不能单独使用,必须跟其后的动词原形构成谓语。情态动词的具体用法如下: 一、can, could 1、表示能力。 a. Can you speak English? b. Can you finish this work tonight? c. Man cannot live without air. Note:

(1) can表示能力时,可用be able to 代替。 a. I’ll not be able to come this afternoon. (2) 当我们要表示“某件事情已经 成功”时,应用was/ were able to , 不能用could a. He saw well and he was able to swim to the river when the flood happened. b. He was able to go to the party yesterday evening and he enjoyed himself very much. 2、表示客观可能性

a. People who live near airports can have their hearing harmed. b. The boy can sometimes be very naughty. (表示某人或某物一时的情况,“有时会。。。”) c. The invention can be improve d. d. Even experts can make mistakes. e. He can’t be in Beijing now because I saw him a moment ago. f. He had a lot of work to do last night, so he couldn’t have gone to see a film. Note: 在肯定句中用can表示可能性时,其含义是理论上的可能性,不表示

英语语法总结:情态动词的使用

英语语法总结:情态动词的使用 情态动词的使用 1)情态动词can(能够),must(必须),may(可以)结构:主语+can/must/may+动词原型 He can make the tea. Sally can air the room. We can speak English. ★变疑问句将情态动词移到句首 Can he make the tea? Can Sally air the room? Can we speak English? ★变否定句在情态动词后面加not

He cannot make the tea. Sally cannot air the room. We cannot speak English. ★肯定回答及否定回答 Yes, he can. / No, he cannot. Yes, she can. /?No, she cannot. Yes, we can. / No, we cannot. ★特殊疑问句:(必背) What can you do? 注意:情态动词的句子没有第三人称单数的变化,不要在情态动词或动词后面加s。

2)must/have to的区别 must 表示必须,是主观上觉得应该做,have to是不得不,是由于客观条件逼迫的必要要做 must 只能用在表示现在和将来的句子里,而have to do可以用在任何时态 3)must, may, might表示猜测: ·must do 表示对现在事实的猜测 ·must have done表示对过去事实的猜测 ·must have been doing 表示对过去正在进行的事实的猜测 ·may/might do, may/might have done表示没有任何事实依据的猜测,might的可能性更小。 4)can't/couldn't 表示不可能

情态动词,特殊疑问句,一般疑问句

情态动词(Modal [‘modl:] verbs) 不能独立作谓语,只能和行为动词一起构成谓语。情态动词用在行为动词前,表示说话人对这一动作或状态的看法或主观设想。 情态动词主要有下列:can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) must not. 情态动词的特点: 情态动词无人称和数的变化,情态动词后面跟的动词须用原形,否定式构成是在情态动词后面加"not"。 个别情态动词有现在式和过去式两种形式,过去式用来表达更加客气,委婉的语气,时态性不强,可用于过去,现在或将来。 情态动词属非及物动词,故没有被动语态。

一般疑问句General ['d?enr?l] Questions 1.基本结构: ①谓语动词是助动词(do, have和be)、情态动词时,只要直接把这些词置于句首,句末改成问号。★be + 主语+ 其它部分 ★情态动词+ 主语+ 动词原形+ 其它部分 ★肯定回答用“Yes,主语+be\情态动词.”,否定回答用“No,主语+be\情态动词+not.”。

②谓语动词是行为动词时,必须在句首加上助动词Do、Does、Did,句子中谓语动词必须用原形。 ★助动词+ 主语+ 动词原形+ 其它 Do your parents like English Yes,they do. / No,they don’t ③注意:在把肯定句改成否定句或一般疑问句的时候, already要改成yet,some、something、somebody等分别改成any、anything、anybody等。在改成否定句的时候注意把too改成either, both改成neither, all改成none等.把第一人称I、we改成第二人称you。 Are you from Japan﹖Yes, I am./ No, I'm not. Is her sister doing her homework now﹖Yes, she is./ No, she isn't. Does he work in a bank﹖Yes, he does./ No, he doesn't. 2.将陈述句变为一般疑问句 ①含be动词或情态动词的句子(秘诀:一调二改三问号) 一调:即把句中的be或情态动词调到主语前; 二改:改换主语称谓,即将句中的主语I\my \mines\we\our\ours等第一人称分别改为相应的第二人称you\your\ yours等; 三问号:句末的句号改为问号。如: I am an English teacher. →Are you an English teacher We can speak English fluently. →Can you speak English fluently ②含行为动词(或称为实义动词)的句子(秘诀:一加二改三问号) 一加:即在句首加助动词Do或Does; 二改:①把谓语动词改为原形;②、改换主语称谓(同第一组); 三问号:句末的句号改为问号。 We read English every morning. → Do you read English every morning Tom’s father listens to English on the radio every evening. → Does Tom’s father listen to English on the radio every evening 特殊疑问句The special interrogative sentence 以疑问词开头,对句中某一成分提问的句子叫特殊疑问句。 疑问代词:what(什么)who(谁,作主语) which(哪个,在一定范围内选择) whose(谁的,指附属关系)whom(谁,作宾语) ②疑问副词:when(何时,询问时间)where(何地,询问地点) why(为什么,询问原因) how(如何,询问手段,方式,工具以及程度) 2.语序:

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。

初中英语语法情态动词用法大全

情态动词 有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语。 情态动词 句和疑问句中表示请求,允许,意为“能够” could 是can 的过去式,意为“能、会”,表示过去的水平在疑问句中表示委婉请求 may 表示请求、许可,意为“能够”表示推测,常用于肯定句中,意为“可能、也许” might 是may的过去式,表推测,常用于肯定句中,意为“可能、也许”must 表示主观看法,意为“必须、应该”表有把握的推测,用语肯定句dare 表示敢于,主要用于否定句和疑问句中 should 意为“应该”,表示要求和命令表示劝告、建议 had better 意为“最好”,表示建议 used to意为“过去常常,表示过去的动作、行为 考点一情态动词知识清单 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,另外情态动词没哟人称和数的变化,情态动词后必须跟动词原形。 1. can 的用法 (1)表示水平、许可、可能性。表示水平时一般译为“能、会”,即有种水平,尤其是生来具备的水平,此时may 和must 均不可代替它。(2)表示可能、能够。如:I can finish it in an hour. (3)表示许可,常在口语中。如:You can use my dictionary. (4)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”。 2.could的用法 (1)can的过去式,意为“能、会”,表示过去的水平。 (2)could 在疑问句中,表示委婉的语气,此时没有过去式的意思。 3.may的用法 (1)表示请求、许可,比can 正式, (2)表示推测,谈论可能性,意为“可能,或许”,一般用于肯定句中。 (3)may的过去式为might ,表示推测时。可能性低于may 。 4. must的用法 (1)must 表示主观看法,意为“必须、一定”。 (2)其否定形式mustn’t表示“一定不要”“千万别”“禁止, 不许”.(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 . (4)must 表示有把握的推测,用于肯定句。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。 She must have finished writing, hasn’t she? 5. need的用法 (1)need 表示需要、必须,主要用于否定句和疑问句中,其否定形式为needn’t,意为“没有必要,不必”。用need 提问时,肯定回答为must,否定回答为needn’t。如:----Need I stay here any longer? ----Yes, you must .-----No. you needn’t . (2) need 还能够作实义动词,此时有人称、数和时态的变化,后边多接动词不定式。 6. dare 的用法dare意为“敢、敢于”,用法近似于need,有两种词性: (1)dare 作为情态动词,多用于否定句、疑问句或条件句中,无第三人称单数形式,只有一般现在时和一般过去时。 (2)dare 作为实义动词,此时有人称、数即时态的变化。注意:在口语中,dare 的各种形式常与不带to 的不定式连用。Do you dare tell her what I said? 7. shall 的用法 (1)shall 表示征求对方意见(多用于第一、三人称), Shall we go out for a walk? (2)表示决心、警告、命令(多用于第二、三人称), No one shall bring your beepers or mobile phones in the exam. 8. should的用法 (1) should 意为“应该”,可表示劝告、建议、义务、责任等。We should protect the environment. (2) should (would)like to do sth. 表示“想要、愿意做某事”,常用于口语中。Would you like to go with me? 你想和我一起去吗? (3)Should have done 表示对过去动作的责备、批评。 You should have finished your homework. 9. will 的用法 will表示意愿、意志、打算,可用于多种人称。 I will help you if I’m free this afternoon. 10. had better 的用法 had better 意为“最好”,没有人称的变化,后面接不带to 的不定式,其否定形式为:had better not。 We had better go now. You had better not give the book to him. 考点二含有情态动词的疑问句 1. 由can、may、must构成的疑问句 (1)句式:Can/ May/ Must…+ 主语+动词原形+….?如:Can you repair the car? Could he be a good student? May I borrow your ruler?Must we clean the room now? (2)对may 引出的问句,能够有下列回答方式:Yes, of course. Yes, certainly.Sure.No, you mustn’t.No, you can’t. (3)对must引出的疑问句,回答为:Yes, …must.No,…needn’t/don’t have to. 2. will,would,shall 的用法 (1)will 在一般疑问句中表示客气的“请求、劝说”。would 是will 的过去式,语气更加客气、委婉。Would you show me your picture book? Will you please give me a call? (2)对will/ would you…的回答方式有以下几种:Yes, I will. (No, I won’t.)Sure . (I’m sorry , I can’t.)All right.Certainly. (No, thank you .) Yes, please. (3)shall引出的疑问句用于第一人称,表示征求对方意见或客气的请求。其回答方式有以下几种:Yes, please.All right. No, thank you. 考点三不同情态动词的否定意义也不同 1. (1)can’t可译为“不会”,如:I can’t play basketball. 我不会打篮球。(2)当句子表推测时,用can’t表达不可能,He can’t be ill. He is playing chess with Tom.(3)can’t还可用来回答“ May I …?”这样的问句。May I come in ?No, you mustn’t. / can’t.(4)can’t还可用于固定习语中。She can’t help crying. 2.may 的否定式为may not ,译成“可能不”,He may not be at home. 3.(1)mustn’t表示不许,不可。He mustn’t leave his room.

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