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情态动词表推测

情态动词表推测
情态动词表推测

“情态动词+have done”表推测一览表

“情态动词+be doing”表推测一览表

口诀:“情动”加上have done,推测事情已经干;

“情动”加上be doing,推测事情在进行;

条件状语从句中的虚拟语气:条件句分为真实条件句和虚拟条件句两种,真实条件句用陈述语气,虚拟条件句用虚拟语气。(虚拟条件句是虚拟语气的重点)

虚拟条件句关键是要熟练掌握以下三大公式:

1、宾语从句中的虚拟语气:有三种情况。

一是在动词insist(坚持),order(命令),command(命令),suggest (建议),advise(建议)。Recommend(建议,推荐),require(要求),request(请求),demand(要求),desire(要求,愿望),等动词后面的宾语从句中一般用虚拟语气,其结构为“主语+should+动词原形”,其中should可以省略。

把以上10个动词简称为:一个“坚持”,两个“命令”,三个“建议”,四个“要求”。

二是动词wish之后接宾语从句一定要用虚拟语气。

从句的时态是:

1、与过去事实相反用had done/had been,

2、与现在事实相反用did或were,

3、与将来事实相反用“would/might/could/should+动词原形”。

注意:wish在简单句中并非表示的是虚拟语气,如:wish you success.祝你成功。

三是在would rather的宾语从句中,也要使用虚拟语气,其从句中谓语动词的时态用一般过去时。如:I would rather you didn’t hear what I said. 我宁愿你没有听到我说的话。

2、主语从句中的虚拟语气

少数“it is+形容词+that+主语+should+动词原形”,其中should同样可以省略。常见形容词有:important,necessary,strange,unusual,curious,remarkable,surpri sing,desirable,natural等。

3、定语从句中的虚拟语气

“it is(high/about) time that+主语+动词的过去式,或者是“should+动词原形”。Time是先行词,that是引导词,其意思是“早该做什么事了”

如:1、It is high time that you went to school.=it is high time that you should go to school.你该上学了。

2、It is about time that you picked up your daughter at school.= It is about time that you should pick up your

daughter at school.你该去学校接你女儿了。

熟练掌握强调句型:句型结构是:it is/was+被强调部分+that/who+句子原有部分。在强调句型中,强调人时,一般用who,也可用that,但强调时间,地点等时只能用that,不能用when,where等。

1、强调主语

2、强调地点状语

3、强调时间状语

4、强调宾语。

not …until…的三大句型:

例:妈妈回家之后我才睡觉。

正常I did not go to bed until my mother come back home.

强调It was not until my mother came back home that I went to bed.

倒装Not until my mother came back home did I go to bed.

怎样识别not …until…是强调句还是倒装句呢?很简单,如果否定词not在句首,就是倒装句,如果it在句首,就是强调句。

it的10大句型

1、It was for the first time that I wrote to a foreign pen

friend.这确实是我第一次给一个外国笔友写信。

这是强调句型。还原为:

I wrote to a foreign pen friend for the first time.

2、It is the first time that I have written to a foreign pen

friend.这是我第一次给一个外国笔友写信

这是定语从句,that之后的时态要用现在完成时态。

3、It was eight when the class began.8点钟开始上课。

这是时间状语从句,强调句型:

It was at eight that the class began.

4、It is possible that I will enter this key university.我上这所重点大学是可能的。

这是主语从句。It是形式主语。that I will enter this key university是真正主语。还原成:

That I will enter this key university is possible.

5、It is/has been three years since he got married.他结婚(成家)已经三年了。

It is/has been some time since sb did(短暂性动词)sth.意为“自从某人干某事已经有多长时间”例如:

It is/has been three years since he worked here.他不在这儿工作已经三年了。

6、It will be one year before she finishes middle school.再有一年时间她就中学毕业了。

It is/was/ will be some time before…意为“过多长时间后再干什么”。

7、It is high time we went to school.我们上学的时间到了。这时定语从句,在It is(high)time that…句型中,that之后谓语动词的时态要用一般过去时或“should+动词原形”,属于虚拟语气。

8、It is said that a new factory will be built nearby my

hometown.据说一家新工厂将见在我家乡附近。

这时主语从句。

it is+过去分词+that…..。类似的句型还有:It is reported that…/ It is known that…/ It is thought that…/ It is suggested that…/ It is believed that…/ It is hoped that…等。

9、It looks as if it is going to snow.看起来要下雪了。

这时表语从句,类似的句型还有:It seems to sb that…/ It (so)happened that…/ It appears to sb that(=as if)…等。10、It is necessary that we should master a foreign language.我们掌握一门外语是必需的。

这是主语从句,在“It is+少数形容词+that sb should do …”这种句型中,it同样是形式主语,that之后从句的谓语动词是“should+动词原形”,其中should可以省略。这样的形容词有necessary/important/unusual/strange/natural等。

情态动词+have done表推测

一、must have done一定已经做了。

They must have finished their work.他们一定做了他们的工作。

二、1、Can have done.可能已经做了。

2、Can’t have done.不可能已经做了。

They can have finished /homework so quickly.他们可能很快完成他们的工作。

They can’n have finished /homework so quickly.他们不可能很快完成他们的工作。

They can have gone to bed /since /the door is closed.门关着,他们可能已经睡着了。完成时态+since

三、1、Could have done.可能已经做过。(对过去事情的推测)

2、Couldn’t have done. 不可能已经做过。

You could have used my computer because I didn’t use it.你可能使用过我的游戏机。因为我不能使用它。

you couldn’t have used my computer.你不可能使用过我的游戏机。

3、Could have done表过去虚拟语气,过去表本来会做而未做。含

责备,遗憾的语气。

It was so fine yesterday, you could have come out for a walk.(对过去的虚拟语气)昨天天气好,你本来可以出来散散步的。(事实上没有散步,对过去本来会做而没有做。)

4、would have done.表示虚拟语气,本来完全可以做,而没有做。

I would have come /to help /you with the work yesterday

(to do)

/but I was too busy.昨天我本想帮你做工作的,但我太忙了。(遗憾的语气)

四、should have done.表示虚拟语气,本应该做而没有做。

should=ought to应该

1、Shouldn’t have done.本不应该做。(事实上做了)

He shouldn’t have swum /in the lake /alone.他本不应该独自

一人在湖里游泳。(事实上已经游泳了,责备的语气)

2、you should have studied hard.你本来应该学习努力。(事实上没有做到)

五、needn’t have done.表示虚拟语气。本来不必做,但做了。“多此一举”

1、You needn’t have watered /the flowers.你本来不需要给花浇水。

六、will /shall have done.表示将来完成时,不表示推测,也不表示虚拟。

七、may have done.也许已经做了。

They may have finished homework.他们也许已经完成作业。

You may have read the book.他也许已经读过书。

八、might have done.①也许已经做过,②本来做但未做。(虚拟语气)

They might have won the match.他们本来可以赢得这场比赛。(事实上没有赢)

I might have passed the exam.我本来可以通过考试。(事实上没有通过)(虚拟语气)

九、needn’t have done.本来不必做但做了。(虚拟语气)

You need not have gone out.你本来不必出去。(事实上出去了)

十、would rather have done.过去宁愿做但未做。(对过去的虚拟)

I would rather you paid the money yourself.我宁愿你自己付钱,AA制。

I would rather not have gone /there.我宁愿没有去过哪儿。

I would rather do it today.我宁愿今天做。

十一、would like to have done.过去想做但未做。(虚拟语气,过去的虚拟)

I would like to have seen /the film.我过去想看场电影。(事实上没有看)十二、had better have done.当时最好做了某事。

You’d better have gone /there.你当时最好去哪儿。(事实上没有去)You had better not go dancing tonight.你最好今天晚上不去跳舞。

情态动词+be going.表推测:

连词other wise, or, but与with, whithout, but, if only 否则但是有没有但是只要

及其in case/for fear that/lest引导的从句,要用虚拟语气。

以免以免免

With you help, we might finish the work earlier.有你的帮助,我或许能早点完成工作。

Whithout water, there would be no life.没有水,就没有生物。

情态动词表推测(排名次)

一、1、must一定,必须。语气强硬。

must=have to 不得不,适用于各种时态。

例句:1、It’s very late now, must you watch TV?(must非要,偏要) You must go=you have to go你必须走。

2、must/needn’t,用must提问,用needn’t否定回答

——Must I be here/at eight tomorrow morning?

——No ,you needn’t或者no you can’t.

不,你不必

3、must+be表推测,一定,一定是。

You must be tired.你一定是累了。

You must see her.你一定要见她。

She must be playing piano.她一定是在弹钢琴。

4、need/must.用need提问,肯定回答,yes ,you must.

——need I do anything for you.我需要为你做任何是吗。

——yes, you must / No,you needn’t

是的,你一定的做。不,你不必。

二、can /be able to.能够,能力。适用于现在时、过去时。表推测

可能。

be able to适用于各种时态,表努力实现的能力。

He /has been able to /speak English since /he was a child.他自从小时候起,他就会说英语。

此处be able to用于完成时,而can不能。

Could表委婉的语气。

Could you help me?你能帮我吗?

三、may /might 也许,可能。表不太确定,语气较弱。

——may, I come in.

——No, you mustn’t /can’t / yes, you may.

用may提问,否定回答。No ,you mustn’t /No can’t.

May /might as well.“不妨,最好”与had better相近。

You /might as well /go home now.你最好现在回家。

最好

四、shall /will, will用于各种人称,shall用于第一人称单复数I ,we

Shall用于二、三人称,表示命令,威胁,允诺,决心。

(表示允诺)

“努力学习你将得到奖励”老师说。

Shall we come to see you?要不要我们来看你?

五、should /ought to应该。

Ought to表责任,义务法律

Should建议、劝告

1、you should study /English hard.你应该努力学习英语。

应该

★Should竟然

You should play computer golme,你竟然玩游戏。

Should she do /such a thing?她竟然做这种事情?

我竟然不知道?

Why /should you talk like that.你为什么这样说话。

dare /need既是情态动词,又是实义动词。

you /needn’t go /there today, need you.(情态动词,反意疑问句) you/need to go /there today, don’t you.(行为动词,反意疑问句) need to do sth

He /needs /a new computer, doesn’t he.(实义动词)

三单

He needn’t go there=he doesn’t need to go there.他不必去那里。need he go there?=does he need to go there.他有必要去那里吗?★dare敢

I dare not go there.我不敢去那里(情态动词)

I dare not go along.我不敢独自去。

Do you dare to hare a match with us?你们敢和我们比赛吗?.

dare to do sth(实义动词)

★used to,用于过去时。表对比,表现在和过去。

There used to be a middle school here.这里曾有一所中学。

I used to go to school by bus, but now I take my bike.

used to do sth(实义动词)

used you to go to school by bike?

★did you use to go to school by bike.你过去去学校骑自行车吗?The boy is no longer what she used to be.这个男孩与过去不一样了。(对比)

W ould /will, would表主观意见和愿望。“愿意”

I would like some tea.我要点儿茶。(情态动词)

I would like to see you.我想见你。

W ould表请求、愿望、个人想法。

I could do so if I would.要是我愿意。I would.

(情态+动原)

六、would表推测“大概、也许”

He would be the best man for the job.他也许是这个工作的最佳选。

情态+动原

七、would hare+done表示与过去事实相反的情况,虚拟语气。

I would hare done it if I were you.如果我是你,我会做这件事。

情态动词表推测用法总结及专项练习

情态动词表推测用法总结及专项练习 1.can / could用于表推测的用法 (1) 从使用句型上看,can 通常只用于否定句或疑问句,一般不用于肯定句,而could 可用于肯定句、否定句和疑问句。两者没有时间上的差别,只是could 比can 更委婉,更不确定。如:It can’t [couldn’t] be true. 那不可能是真的。 What can [could] they be doing? 他们会在干什么呢? We could go there this summer. 今年夏天我们可能要去那儿。 注:can 有时也用于肯定句中表示推测,主要用于表示理论上的可能性(即从理论上看是可能的,但实际未必会发生),或表示“有时”之意。如: Even experienced teachers can make mistakes. 即使是有经验的教师也可能出错。 She can be very unpleasant. 她有时很令人讨厌。 (2) 从时间关系看,对现在或将来情况作推测,后接动词原形;对正在进行的情况作推测,后接be doing 结构;对过去情况作推测,后接动词完成式。如: He could have gone home. 他可能已经回家了。 He can’t [couldn’t] have understood. 他不可能理解了。

Why does he know this? Can [Could] someone have told him about it? 他怎么知道? 会是哪个人告诉他了吗? (3) “could+完成式”除表示对过去的推测外,还有以下重要用法: ①表示过去没有实现的可能性,常译为“本来可以”。如: I could have lent you the money.Why didn’t you ask me? 我本来可以借这笔钱给你的。你为什么不向我提出? ②用来委婉地责备某人过去应该做某事而没有去做,常译为“本来应该”。如: You could have helped him. 你本来应该帮助他的。 ③表示“差点儿就要”。如: I could have died laughing. 我差点儿笑死了。 2. may / might用于表推测的用法 表示推测,两者都可用,只是might 比may 语气更不确定,表示的可能性更小。 (1) 在句型使用方面:两者均可用于肯定句和否定句,但用于疑问句时,may通常不用于句首,但可用于疑问句的句中(如特殊疑问句等),而might尽管可以用于疑问句的句首,但不算普通,通常会改用其他句式(如用could等)。如: He may [might] know the answer. 他可能知道答案。

情态动词表推测用法总结(整理稿)

情态动词表推测用法总结 (一)情态动词表推测 能用于表推测的情态动词: 英语情态动词表推测的时态构成 (1)语气部分:(以下情态动词语气由强至弱) 肯定句:must、may、might(=could) 否定句:can’t(=couldn’t)、mayn’t、mightn’t 疑问句:can、could(语气更加委婉不确定) (2)时态部分: 一般现在或一般将来时间的推测:情态动词+be;情态动词+v. 对过去时间的推测:情态动词+have done 对正在进行的时态的推测:情态动词+be doing (二)表许可、请求 1、 can, could 2、may, might 3、must 4、shall 5、will, would 1. can, could 1) 用在疑问句中,表示一般的请求。两者不同在于:用could 要比用can更加委婉,特别是没有把握得到允许时。 Can I go with you? 我能和你一起去吗?Could I ask you something? 我能问你一个问题吗? 2) 用在陈述句中,表示许可:You can leave when you finish your work. 做完事情后你才可以走。 2. may, might 1) may用在疑问句中,也表示一般的请求。同can相比,may比较正式,常常表示尊敬之意。并且,may在疑问句中常用于第一人称,很少有May you…/they…这样的句型。Might比较少用在疑问句中,它表示请求的时候常用陈述句。 May I make a suggestion? 我可以提个建议? 2) 用在陈述句中,表示许可,此时与can, could相近。 You may have a rest before we set out again. 我们再次出发之前你可以先休息一下。 3. must 1) 表示说话人“不许”和“禁止”某人做某事,有很强的劝告语气。 Cars must not be parked here.此地不准停车。 2) Must的一般疑问句的回答有两种,表示肯定,用Yes, you must. 表示否定,用No, you needn’t. Must I post this letter tomorrow? 我明天必须得寄掉这封信吗? Yes, you must. 是的,你必须明天寄掉。

(完整word版)情态动词表推测专项练习题

情态动词表推测专项练习 1. Look! The light is out in her room. She ———— to bed already. A. must go B. had to go C.must have gone D.has gone 2. We had a wonderful time yesterday. You ———— .Why didn't you come? A. had to come B.should have come C.might have come D.must have come 3. ─There were already five people in the car but they managed to take me as well. ─ It______ a comfortable journey. A. can't be B. shouldn't be C. mustn't have been D. couldn't have been 4. My sister met him at the Grand Theatre yesterday afternoon, so he ___ your lecture. A. couldn't have attended B. needn't have attended C. mustn't have attended D. shouldn't have attended 5. I was really anxious about you. You _____ home without a word. A. mustn't leave B. Shouldn't have left C. Couldn't have left D. needn't leave 6. Oh, I’m not feeling well in the stomach,I_____ so much fried chicken just now. A. shouldn’t cut B. mustn’t have eaten C. shouldn’t have eaten D. mustn’t eat 7. Mr.White _____ at 8:30 for the meeting, but he didn’t’ show up. A. should have arrived B. should arrive C. should have had arrived D. should be arriving 8. You ______ be tired - you've only been working for an hour. A. must not B. won' t C. can' t D. may not 9. - Isn' t that Ann's husband over there? - No, it _______ be him -I'm sure he doesn't wear glasses. A. can't B. must not C. won't D. may not 10. There ____ be any difficulty about passing the road test since you have practised a lot in the driving school. A . mustn’t B. shan’t C. shouldn’t D.needn’t 11. I was on the highway when this car went past followed by a police car. They ______ at lease 150 km an hour. A. should have been doing B. must have been doing C. could have done D. would have done 12. He _____ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside. A. should B. must C. wouldn’t D. can’t 13. ---- The woman biologist stayed in Africa studying wild animals for 13 years before she returned.---- Oh, dear! She _______ a lot of difficulties! A. may go through B. might go through C. ought to have gone through D. must have gone through 14. This cake is very sweet. You __________ a lot of sugar in it. A.should put B.could have put C.might put D.must have put 15. —Catherine, I have cleaned the room for you.

情态动词表猜测的用法

情态动词表猜测的用法 情态动词must,can,could,should,may,might 等可以用在句中表示猜测。 1.“情态动词+动词原形”表示对现在或将来情况的猜测 I don’t know where she is. She may be in Wuhan. 2.“情态动词+进行式”表示对现在或将来正在进行的情况的猜测 At this moment, our teacher must be correcting our exam papers. 3.“情态动词+完成式”表示对过去情况的猜测 You must have been caught in the rain on your way home yesterday. 4.“情态动词+完成进行式”表示对过去正在进行的情况的猜测 Your mother must have been looking for you. 5.推测的否定形式用can’t/couldn’t,may not/might not表示

Mike can’t have found his car, for he came to work by bus this morning. 6.句子中含有表示猜测的情态动词时,其反 意疑问句的构成不能再用原句中的情态动词,而应根据原句在去掉情态动词的情况下的主谓关系来确定其反问形式。 ①The man in the white clothes must be a doctor, isn’t he? ②She must have seen the film before, hasn’t she? ③He must have an uncle abroad, doesn’t he? ④You must have met Uncle Wang in the shop yesterday, didn’t you? 7.在表示“猜测”方面的区别 情态动词must,can,could,should,may,might 都可以用于表示“猜测”(注意:could, might 表示推测时不表示时态, 其推测的程度不如can, may)。实际上,“猜测”与“可能性”在逻辑上是有必然联系的。如果认为没有某种可能性,人们就不会作出某些猜测。因此,请注意六个情态动词之间的区别与它们各

初中英语情态动词表推测练习题

★★★★★ 情态动词表推测 【2013天津】—? —, ' . A. ’t B. C. D. 't 【2013四川南充】—, ? —’s. . A. B. C. ’t 【2013湖南益阳】24. . . A. B. C. ’t 【2013江苏盐城】— a ? —, I’ I . A. B. ’t C. D. ’t 【2013福建泉州】—? — . . 's a . A. B. C. 【2013山东潍坊】21. ’t , . A. B. C. D. 【2013湖南株洲】, 's . ! . A. B. C. 【2013黑龙江绥化】—? —’s. ’s . A. ’t; B. ’t; C. ’t; 【2013 湖北黄冈】—’s ? . ? —. ’s . A. B. ’t C. D. ’t 【2013广西贺州】. . . A. ’t B. C. D. ’t 【2013甘肃兰州】—. ? —. , ’s . A. ’t B. C. ’t D. 【2013湖北宜昌】—! — ! a , a . A. B. D. D. 【2013湖北孝感】—. . ? —. . a . A. B. C. D. ’t 【2013湖北十堰】— a ! ! —I’m . ’s . A. ’t B. C. D. 【2013山东烟台】—? —’s. , . A. ’t B. C. ’t D. 【2013浙江宁波】’s a . A. ’t B. ’t C. D. 【2013广东】—. ? —. a . A. B. C. ’t D. ’t 【2013福建福州】—? — . . 't B. 't C. 't 【2012河南】—?

最新情态动词表推测的讲解及练习题

九年级英语表推测语气的讲解与练习 表推测时,英语中只使用must,may,might,may not和can't。这五个表达的语气依次递减: must:一定(语气肯定) may:也许(不很肯定) might:或许(比may语气更弱) may not:也许不(表否定) can't:一定不(must的反义) 推测现在的事情用must,may,might,may not和can't+do或be e.g.She must be at home now. The boy may play now. 推测过去的事情用must,may,might,may not和can't+have done e.g.She might have been ill yesterday. He must have hold the party. 情态动词must, can, could, may, might表推测的用法 情态动词中的must, can, could, may, might都表推测。其中must的可能性最大,can / could次之,may / might最小。具体用法如下: 1.must的用法 (1)表示推测“可能性”时,意思是“一定、准是”,语气较肯定,较有把握。He must be American. = It is certain that he is American. 他准是个美国人。 (2)must表推测只能用于肯定句。如果要表示“一定不、肯定不”的意思时,应用can’t,如询问某种可能时,应用can。 He must know my address. 他肯定知道我的地址。(一定) He can’t know my address. 他肯定不知道我的地址。(一定不) Can he know my address? 他知道我的地址吗?(询问可能性) (3)must表示推测时,可以推测现在/正在发生的动作/过去发生的动作。 He must have a car now. (现在)他一定有辆小汽车。 He must be doing his exercises in the classroom.(正在进行)他一定在教室里做练习。 He must have finished the work.(过去发生)他一定已完成了工作。 注:must表示推测时很少用于将来的情况。一般不用He must come tomorrow.可用It`s certain / I’m sure that he will come tomorrow. (4)在反意疑问句中,当附属部分含有表示推测意义的must时,疑问部分的助动词应与must后面的动词在非推测情况下的用法保持一致。 He must be a worker, isn’t he? (现在)他准是个工人,是吗? It must have rained last night, didn’t it? (过去)昨晚一定下雨了,是不是?

情态动词表推测用法总结(整理稿)

补充强调:推测的句型特点(对某一次的推测句型有两部分:语气和时态) (1)语气部分:(以下情态动词语气由强至弱) 肯定句:must、may might ( =could) 否定句:can,t ( =couldn 't )、mayn t> mightn 't 疑问句:can> could (语气更加委婉不确定 (2)时态部分: have done 表示对过去的推测 be doing 表示对正在进行的推测 be表示对现在的推测 语气部分写在前时态部分写在后,组合在一起就是推测 (-)情态动词表推测的三种句_ 能用于表推测的情态动词:must, can, could, will, would, may, might, should, ought to 1. 在肯定句中一般用must (一定),may (可能),might / could (也许,或许)。 (1)He must/may/might know the answer to this question? 他一定/可能/也许知道这个问题的答案。 (2)It is cold in the room? They must have turned off the heating? 屋里很冷,他们肯定把暖气关了。 2. 否定句中用can't / couldn 't (不可能),may not/might not (可能不)。 (1)It can J t/couldn 't be the headmaster? He has gone to America.这不可能是校长,他去美国了。 (2)He may not/might not know the scientist. 他也许不认识那位科学家。 3. 疑问句中用can /could (能..?)。 (1) Could he have finished the task? 他可能把任务完成了吗? (2) Can he be at home now? 他现在能在家吗? 注:以上三种句式中情态动词的语气按程度都是依次递减的。Might, could并非的过may, can 去式,而表示语气较为委婉或可能性较小。 (二)情态动词表推测的三种时丄

情态动词表推测专项练习题

1. Look! The light is out in her room. She ———— to bed already. A. must go B. had to go C.must have gone D.has gone 2. ─There were already five people in the car but they managed to take me as well. ─ It______ a comfortable journey. A. can't be B. shouldn't be C. mustn't have been D. couldn't have been 3. My sister met him at the Grand Theatre yesterday afternoon, so he ___ your lecture. A. couldn't have attended B. needn't have attended C. mustn't have attended D. shouldn't have attended 4. You ______ be tired - you've only been working for an hour. A. must not B. won' t C. can' t D. may not 5. - Isn' t that Ann's husband over there? - No, it _______ be him -I'm sure he doesn't wear glasses. A. can't B. must not C. won't D. may not 6. I was on the highway when this car went past followed by a police car. They ______ at lease 150 km an hour. A. should have been doing B. must have been doing C. could have done D. would have done 7. He _____ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside. A. should B. must C. wouldn’t D. can’t 8. This cake is very sweet. You __________ a lot of sugar in it. A.should put B.could have put C.might put D.must have put 9.—Tom is never late for work. Why is he absent today? —Something ________ to him. A.must happen B.should have happened C.could have happened D.must have happened

(完整word版)初中情态动词练习题及答案

(完整word版)初中情态动词练习题及答案 一、单项选择情态动词 1.—_______ you disturb me now? I’m busy preparing a report. — Terribly sorry, but I have something urgent to tell you. A.Need B.Should C.Might D.Must 【答案】D 【解析】 【详解】 考查情态动词特殊用法。句意:—你非要现在打扰我吗?我正在准备一份报告。—真对不起,但是我怕有紧急事情告诉你。A. Need需要;B. Should 应该;C. Might也许;D. Must 必须;一定;偏偏,非得;根据语境可知must表示“偏偏,非得”符合上下文语境,用来指责对方。故D项正确。 2.It is really cold and the ground is wet; it ________ have rained last night. A.might B.must C.can D.should 【答案】B 【解析】 【详解】 考查情态动词辨析。句意:天气很冷而且地面是湿的,昨晚一定下了雨。根据上文the ground is wet可知,“昨晚下了雨”是肯定的,故用must have done“必定做了……”表示对过 去十分有把握的推测,故选B。 【点睛】 must have done用法辨析 must have done:表示对过去的肯定的逻辑推测,推定某件事情、动作或状态可能在过去发生过(存在过)。 He must have been a doctor, for he knows medicine so well. 他过去肯定是一位医生,他对医学如此了解。 Somebody must have stolen the ring. 肯定有人偷了这枚戒指. [该句所推断的偷窃动作发生在过去.] The temperature must have dropped to below zero last night, because the water is frozen all over.昨夜的温度肯定降到零度以下,因为水都冻住了。 如果“must + have + 过去分词”句型与by now连用,还可以表示对现在完成的动作和状态的肯定推测,但实质上还是指所推测的过去的动作。例如: They started early this morning; they must have arrived by now. 他们今晨很早就出发了,现在肯定已经到了。 中国学生的常见病句是:They...; they certainly have arrived.病句的句义是“他们当然已经到 达了。”(这不是对过去的肯定推测,而是断定动作已经完成。)

2019年秋人教版九年级Unit 8情态动词表推测精练(含答案及解析)

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表示推测的情态动词

表示推测的情态动词 ■肯定的推测 must, should, may(might) 或could(一般不用can),其中,must的语气最强,译为“一定,准是,想必是”;may(might) , could的语气最弱,译为“也许”、“可能”。如:Th e computer doesn’t work. There must be something wrong with it. 这台计算机开 不了机。一定是有什么毛病了。 It should be fine tomorrow. 明天很可能天晴。 If you look at the moon, you may/might have many questions to ask. 如果你看看月亮,或许会有许多问题要问。 This project could create 5,000 new jobs. 这项新工程可能给5千人带来新工作。 ■否定的推测 表示可能但不是肯定无疑时,常用should not(恐怕不会) ,或用may not, might not或could not,译为“可能不,也许不”;否定语气较强时,则用can’t或couldn’t,译为“不可能”。如: Don’t worry, your father may not have been hurt seriously. 别急,你父亲也许伤得不厉害。 He might not be in England. 他或许不在英国。 There shouldn’t be any difficulty about getting you a visa. 给你弄个签证恐怕不会有什么困难。 After what had happened he could not continue to work there. 鉴于所发生的事情,他不可能继续在那里工作下去了。 He can’t be more than thirty. 他不可能在三十以上。 ■疑问句中的推测 一般用can或could。如: What can he mean? 他可能是什么意思呢? What could have become of him now? 现在他可能怎么样了呢? ■后接的动词形式 对现在或将来的推测一般接动词原形;若表示说话是正在发生的情况,用情态动词+be +现在分词;若要表示对过去的情况进行推测时,用“情态动词+ have + 过去分词”。如:You must know Diana surely. 你准会认识戴安娜。 You must be joking. 你准是在说笑话。

情态动词表推测的用法

情态动词表推测的用法 一、must表示推测的用法 must表示推测时,只用于肯定句,表示很大的可能性,意为“一定,准是,必然会”。其否定形式是can’t/couldn’t (不可能)。例如: 1. You haven’t eaten anything since this morning; you must be hungry. 2. That can’t be Mary —she’s in hospital. 二、can/could表示推测的用法 1. can表示推测时,多用于肯定句和疑问句。当用于肯定句时,指“有时可能会”,是理论上的可能,其时间意义宽泛不具体。例如: Even experienced teachers can make mistakes. 2. could表示推测时,既可以用于肯定句,又可以用于疑问句。例如: My book has disappeared. Who could have taken it? 3. can’t/couldn’t表示推测时,用于否定句,是语气最强的否定推测,意为“不可能,一定不(是)”。例如: He can’t/couldn’t have see n her there. 【即学即练】 一、用表示推测的情态动词must, could, , can的适当形式填空。 1. — Hi, Tom. Any idea where Jane is? — She be in the classroom. I saw her there just now. 2. — I hear they went skiing in the mountains last winter. — It be true because there was little snow there. 3. Accidents happen on such rainy days. 二、翻译下列句子,注意情态动词的推测用法和情态动词后动词的形式。 —那个人一定是布朗先生。—不可能是他,他去纽约了。 【反义疑问句】又叫附加疑问句。它表示提问人的看法,没有把握,需要对方证实。反义疑问句由两部分组成:前一部分是一个陈述句,后一部分是一个简短的疑问句,两部分的人称时态应保持一致。如:She was ill yesterday, wasn’t she? They don’t work hard, do they?

情态动词表推测归纳

情态动词表推测归纳 一、can/could can和could没有时态上的区别,只是表示可能性的大小,can表示的可能性比could大。 (1)对现在或将来动作或状态的推测 The shy girl can’t (couldn’t) be our monitor. 这位害羞的女孩不可能当我们的班长。 (2)对过去事实的推测 can (could)+have+动词过去分词,表示推测过去某动作“可能”发生了,或者表示过去某动作有可能发生,但未发生,意为“本来可以……”。 can’t(could’t)+have+动词过去分词,表示推测过去动作一定没有发生。He’s an hour late, and the bad weather can have delayed him. 他迟到了一小时,可能是恶劣的天气使他耽误了。 The road isn’t wet. It couldn’t have rained last night. 路面没有湿,昨天晚上肯定没下雨。 二、may/might (1)对现在或将来动作或状态的推测 She may (might) be washing her clothes. 她可能正在洗衣服。 (2)对过去事实的推测 A.may/might+have+动词的过去分词,表示推测过去某动作“也许”发生了; might+have+动词的过去分词,表示推测的语气更加委婉。 He says that she may/might have misunderstood him. 他说她可能误解他了。 B.may/might+have+been+动词的现在分词,表示推测过去某动作是否正在 进行或一直在进行。 He may/might have been buying stamps when you saw him. 你看见他时他可能正在买邮票。

情态动词表推测用法讲解及配套练习

情态动词must, can, could, may, might表推测的用法 情态动词中的must, can, could, may, might都表推测。其中must的可能性最大,can / could 次之,may / might最小。具体用法如下: 1.must的用法 (1)表示推测“可能性”时,意思是“一定、准是”,语气较肯定,较有把握。 He must be American. = It is certain that he is American. 他准是个美国人。 (2)must表推测只能用于肯定句。如果要表示“一定不、肯定不”的意思时,应用can’t,如询问某种可能时,应用can。 He must know my address. 他肯定知道我的地址。(一定) He can’t know my address. 他肯定不知道我的地址。(一定不) Can he know my address? 他知道我的地址吗?(询问可能性) (3)must表示推测时,可以推测现在/正在发生的动作/过去发生的动作。 He must have a car now. (现在)他一定有辆小汽车。 He must be doing his exercises in the classroom.(正在进行)他一定在教室里做练习。 He must have finished the work.(过去发生)他一定已完成了工作。 注:must表示推测时很少用于将来的情况。一般不用He must come tomorrow.可用It`s certain / I’m sure that he will come tomorrow. (4)在反意疑问句中,当附属部分含有表示推测意义的must时,疑问部分的助动词应与must后面的动词在非推测情况下的用法保持一致。 He must be a worker, isn’t he? (现在)他准时个工人,是吗? It must have rained last night, didn’t it? (过去)昨晚一定下雨了,是不是? You must have learned English for many years, haven’t you? (完成时)你一定学了好多年英语,是吗? 2.?can / could的用法 (1)can表示推测“可能性”时,往往用于否定句或疑问句。Can’t“一定不”,语气很肯定。can在疑问句中意思是“会、可能”。 He can’t be at home. = It is impossible that he is at home. 他一定不在家。 (2)can /can’t后可接进行时/完成时,表示对现在发生的动作或过去发生的动作进行推测。They can’t be reading in the library. 他们一定不在图书馆读书。 He can’t have gone to Shanghai for I saw him a minute ago. 他不可能去了上海,我刚才还看见他。 It’s so late. Where can she have gone? 天晚了,她可能去哪儿了呢? (3)在反意疑问句中,当陈述部分含有表示推测意义的can’t时,疑问部分的助动词应与can’t后面的动词在非推测情况下的用法保持一致. He can’t be a teacher, is he? 他不是教师,是吗? She can’t have finished her homework, has she? 她一定没有完成家庭作业,是不是? (4)could可用于表示某事有可能发生或可能是事实。 Don’t eat it. It could be poisonous. 不要吃它,可能有毒。 The plane could be delayed by fog. 飞机可能会因为雾晚点。 (5)could还可以用于表示客气、委婉、礼貌的请求语气。 Excuse me, could you tell me the way to the bus station?

情态动词表示推测的用法

第五单元:情态动词表示推测的用法 一,对不同时态的推测 情态动词+do sth表示对现在事情的推测。 情态动词+be doing sth表示对正在发生的事情的推测。 情态动词+have done sth表示对过去或已完成的事情的推测。如: 1、They must be in the classroom now. 他们现在一定在教室里。 2、The light in the teachers’ office is still on. Miss Gao must be working. 老师办公室的灯还亮着,高老师肯定正在工作着。 3、Mike may (might) hurt in the traffic accident. 迈克可能在这次交通事故中受了伤。 4、He must have finished his homework yesterday. 他昨天肯定完成了作业。 二、情态动词表示推测,在不同句型中的用法: 1、在肯定句中,可使用的情态动词有:must, could, may, might,等;其肯定程度逐渐减弱,must表示一种很有把握的推测,意为“一定,肯定”,could/may/might表示一种不太有把握的推测,may意为“可能”,might意为“或许”could意为“可能”,could/may/might在表示推测时,无时态区别,只表示语气差异。如: (1)You have worked all this week .You must be tired. 你辛苦工作了一周,一定累坏了。 (2)Will you please answer the phone? It could /may/might be your mother. 请接一下电话好吗?可能是你的母亲打来的。 (3)According to the radio ,it may/might/could rain this evening. 根据广播,今晚可能下雨。 2、在否定句中使用can’t和may not/might not. can’t表示很有把握的否定推测,意为“不可能”;may not/ might not 表示不太有把握的否定推测,意为“可能不”如:(1)She can’t be at school .It’s Sunday today. 她不可能在学校,今天是星期天。 (2)She may not be there today. 今天她可能不在那儿。 (3)I think he might not come. 我认为他可能不来了。 3、在疑问中,一般只用can或could,意为“可能”如: (1)Who can it be at the door ?Can it be Tom? 门口会是谁呢?会不会是汤姆呢? (2)Where could it be? 它可能在哪儿呢? 三、在表示推测时,反意疑问句的两种情况; 1、对现在进行推测时,反意疑问句中的动词用一般现在时。如: (1)He must be good at English, isn’t he? (2)You might be watching TV at home ,aren’t you? 2、对过去进行推测时,若有明确的、表示过去的时间状语,反意疑问句中的动词用过去式;若没有明确的、表示过去的时间状语,反意疑问句中的动词用现在完成时。如:(1)It must have rained last night , didn’t it? (2)You might have been to the Great Wall, haven’t you? 附:belong to的用法 belong to 是动词+介词构成的短语,它表示所属关系,注意其用法:

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