情态动词特殊用法大集合

情态动词特殊用法大集合
情态动词特殊用法大集合

情态动词特殊用法大集合

情态动词除了基本的用法以外还有许多特殊之处,最基本的用法读者可以结合自己的语法书籍来适当复习,这儿就不赘述,主要略列一些特殊用法,希望对各位英语爱好者有所帮助。

1.can和could

⑴Can 和could 可以表示某人或某物一时的特点,可以翻译为“有可能,有时会”。

It can be very warm in this area 。这个地区有时可能非常暖和.

He can be very friendly at times 。他有时会非常友好。

⑵can表示能力时(即有某种知识和技能而能办到),可以与be able to 换用。但是在将来时和完成时中

必须用be able to ;表示经过努力而成功地办到了某个具体的事情时,只能用be able to ,不可以用can。

这种用法的be able to 相当于succeed in 或manage to。另外:can not 比cannot 更强调。

Can you type ?=Are you able to type ?

I am sure we shall be able to get you a jop soon 。(不能用can)

He has been able to finish the work on time。(不可用can)

After years of hard work he was able to win the prize 。(不可以用could)

He could't climb the mountain 。(没有能力爬,因而也没有爬)

He was not able to climb the mountain 。(尝试爬过,但是没能爬上去)

另外:

①be able to 强调能力,通常表示一次性的事件,一般不表示经常性的事件。

I was able to pass the examination 。(=I succeeded in passing the examination 。)

我能考试及格。(考试及格了)

After studying that you will be able to sovle these mathematics problems 。

学习完这个方法后,你能够解这些数学题了。

②在否定句结构中,be able to 指暂时的情况,而can可以指经常的情况。

He is not able to swim today 。他今天不能游泳。

He can't swim at all 。他根本不会游泳。

I shall not be able to go to school tomorrow 。我明天不能上学了。

③在表示“经过尝试或努力为能做到”的意思时,一般不用be able to。如对Were you able to

find the pen?做否定回答应该用:No,I couldn't (find it )。不能说:No ,I wasn't able to find it 。

④could 可以用来表示过去习惯性动作的完成,而was able to 却没有这种用法。

I could run after a bus and catch it twenty years ago ,I can't do that now 。

二十年前,我能在后面跑着追上公共汽车,现在不行了。

⑤cannot /can't 与too/over(‐)/enough /perfectly /sufficiently 等词连用,意思是

“越…越…”“无论怎样……也不为过”、“决不会……够(过)”。

You can't praise him too much 。你无论怎样称赞他都不过分。

You cannot be over careful 。你越细心越好。

I can't thank you enough 。我对你感激不尽。

This point cannot be overemphasized 。这一点无论如何强调都不过分。

注释:

⑴can't /cannot …too /enough 等中的not ,也可以用never /hardly /scarcely

等代替。

There can never be too much deception in war 。兵不厌诈。

We can hardly/scarecely pay too high a price for liberation .

为了解放,我们无论付出多高的代价也不为过。

⑵can't / cannot … …too / enough 等后的附加疑问句的动词用肯定形式can,不用

can't。

You can't praise him too much ,can you ?你无论怎样赞扬他都不为过,对吧?

You cannot be too careful ,can you ? 你再小心也不为过,对吧?

⑶“cannot wait 不定式”意思是“be eager to … … 急于做”,表示强调的肯定意思。

I cannot wait to read the book 。我非常渴望读这本书。

He couldn ’t wait to see her 。他渴望见到她。

练习题:

?Please remind your grandpa to take medicine on time,for a man of his

age_______be very forgetful 。

A.should B。must C。shall D。can

?You cannot be_______careful when you drive a car .

A.very

B.so

C.too

D.enough

?The car broke down on the way ,but we_____get out of the desert at last.

A.might

B.would

C.were able to

D.could

2.must有一种含义:“偏要”“硬要”。表示说话人对句子主语所发出的动作或行为是不希望的、不满的甚至是生气的。通常指令人不愉快的事情。must用于第二人称时,常常含有讽刺挖苦的意思:

Why must you be so stubborn (固执)?

He must come and worry her with questions ,just when she was busy cooking the dinner 。

If you must smoke ,at least you could use an ashtray (烟灰缸)。00

As I was sitting down to lunch ,the electric bell must ring 。

Why must you be so late ?你为何非要这么晚来呢?

练习题:

?Why _______you always interrupt me ?

A 。can

B 。will

C 。may D。 must

?Naturally ,after I told her what to do ,my daughter _______go and do the opposite !

A 。may B。can C。must D。should

另:⑴have to多表示习惯动作或客观条件索引出的义务;而must则用于表示一种重要或急迫的事

情:

We have to care for the young 。(义务)

She has to be at the office before 8 every day 。(习惯)

You must go to the manager at once ,or you 'll be diamissed 。(急迫的事情)

⑵通常have to 强调客观需求,表示因客观环境或事态促使而不得不作某事;must 强调主观看法,

表示主观上认为有必要做谋事。

I must learn another language 。(主观想法:I want to )

I have to learn another language 。(客观需求:身为一个外交官)

但是must可以表示客观必然性,意思为“必然(会),总是会”,而have to 则不可以这样用。

All men must die 。人固有一死。

Competition must happen 。竞争总会发生。

Truth must be out 。真相总会大白。

Winter must be followed by spring 。冬天到了,春天还会远吗?

There must be a day for revenge 。总有报仇的那一天。

⑶对must 所在句子变反意疑问句时,应注意以下习惯搭配:

①must 作“必须”解时,反意疑问句中重复must 。

All the children must respect their parents ,mustn’t they ?

孩子必须尊敬父母,对吗?

②must 作“有必要”解时,反意疑问句中用need 。

We must tell her the truth ,needn’t we ?我们现在有必要告诉她实情,对吗?

③“must be ”表示推测时,反意疑问句用be 的适当形式。

You must be thirsty ,aren’t you ?你一定渴了,是吗?

④“must have done ”表示推测时,附加疑问句一般用have 或has ,但是有明确表示过去

的时间壮语(before 除外)时,反意疑问句用过去时态。

He must have finished the work ,hasn ’t he?

He must have gone abroad last week ,didn’t he ?

You must have been tould about it that day ,weren’t you ?

⑤mustn’t 表示“禁止,不允许”时,反意疑问句一般用may 。

The children mustn’t play with fire ,may they ?

也可以用must 。

We mustn’t be late ,must / may ?我们不可以迟到,对吗?

⑥must 用于表示询问对方意向时,反意疑问句部分的动词可以与前面陈述句部分的动词不一致。

You must come tomorrow ,will you ?

练习题:

?You mustn’t tell it to your morther ,_______?

A.must you B.do you C.need you D.will you

?-----The students must hand in their term papers in a week ,_______?

-----No,they _______。

A.needn’t they ,mustn’t B.mustn’t they ,mustn’t

C.mustn’t they ,needn’t D.shouldn’t they ,should

https://www.360docs.net/doc/ea17495570.html,ed to的意思是“过去常常”,已经含有always ,often ,sometimes ,from time to time 等意思,但是它却可以和它们连用。

He always used to / used always to come by bus 。他过去总是坐公共汽车来。

He often used to work late at night 。他过去经常工作到深夜。

She always used to get up at four o'clock in the morning 。她过去总是早晨4点起床。

但是used to 不可以与表示具体次数或一段时间(即特定的时间段)的词语连用。

He went to abroad three times 。

He lived in the countryside for three years 。

但是可以和过去确定的时间壮语连用。

He used to live here in 1995。

He used to be devoted to her when she was a little girl 。

In those days we used to live in the country 。

另:would 和used to 的区别如下:

两者都可以表示过去的习惯性动作。但是would 只强调过去特定情况下的习惯性动作(由动态动词表示),单纯的过去和现在无关;而used to 即可以强调过去的习惯性动作(由动态动词表示),也可以强调过去的事实或状态(由静态东此表示),且与现在形成对比,即可表示持续的状态,也可表示过去重复的行为。

I used to have an old car 。过去我有一辆旧轿车。

I didn't use to like opera ,but now I'm getting interested 。

我过去不喜欢歌剧,但现在逐渐有了兴趣。

上面两句话的动词均是静态动词,说明过去的事实或状态,不能用would 代替used to 。

注:woud 和used to一样,都不可用来表示发生的次数,也不能与表示一个特定的时间段的状语连用。

He went to Lomdon three times when he was a child .他还是孩子时,去过伦敦三次。

但是would可以和sometimes/now and then/from time to time 等词组(表示过去有时或偶尔的时间状语)连用。

She would sit there for hours sometimes ,doing nothing at all .

他有时一连坐好几个小时,什么事情也不干。

练习题:

When he was there ,he_______go to that coffee shop at the corner after work every day .

A.would

B.should

C.had better

D.might

4.shall可以用在第二、三人称,要重读,不可以缩写,表示说话人的意图、意志、允诺、命令、命运或必然结果等;在法律、条约、协定等文件中可以表示义务、规定等。

You shall have a lot of money .(意图/允诺)你会有很多钱的。

Each citizen shall carry his identification card when travelling.(规定)

旅游时每个市民务必带上身份证。

You shall arrive there before sunset .(命令)你们要在日落前到达那儿。

If you don't behave yourself ,you shall be punidhed .(威胁)

如果你行为不轨的话,你会受到惩罚的。

The task shall be finished by Sunday .(允诺)任务会在星期天前完成的。

He shall get what he deserves .(警告)他会得到他应该得到的。

Death is certain to all;all shall die .(命运)死必临万物;万物皆必死。

Better days shall soon follow .(预言)好日子不久会来到。

The time shall come when they shall be avenged .(意志)为他们伸冤的时候会来的。

Who touches pitch shall be defiled .(必然结果)玩火者必自焚。

POWs shall not be ill-treated .(法律用语)战俘不得受虐待。

The new regulation shall take effect on May the first .(规定)新章程自五月一日起实施。

练习题:

?It has been announced that candidates_______remain in their seats until all the papers have been

collected.

A.can

B.will

C.may

D.shall

?Haven`t I told you already that you_______have my answer tomorrow morning ?

A. will

B.shall

C.should

D.would

?Nobody_______throw away rubbish everywhere !

A.can

B.need

C.shall

D.must

5.will

⑴表示意愿或固执坚持。用于非人主语时,表示固有性质,倾向。

She won't lend me the money .她不愿把钱借给我。

He is the man who will go his own way.他是一个自行其事的人。

The window won't open .窗子打不开。

The door won't shut .门关不上了。

⑵在含有if从句的主从复合句中,如果if引导的条件状语从句表示的是一般将来时或过去将来时,

不能用will或would ,而要用一般现在时或一般过去时来代替。

If you don't come here , I will go to find you .

但是will可以用在if从句中表示各种“愿望”,包括“请求,意愿,拒绝,同意,允许,能够,

坚持,选择,计划”等。

If you will come into the hall ,the meeting will begin soon.

请求)请到大厅里来,会议马上开始了

If you will make another try ,I shall do everything possible to help you .

(意愿)如果你愿意再试一次的话,我愿近一切可能帮助你。

If he wion't go with you ,I shall ask somebody else .

(拒绝)如果他不肯同你一起去的话,我将另找人。

If you wll agree with me ,I shall tell you everything about it .

(同意)如果你同意我的观点,我将把一切都告诉你。

If you will come late again ,I shall let you in .

(允诺)如果你答应不再迟到,我就让你进去。

If anyone will find a cure to the disease ,it will be a winder .

(能够)如果有人能够治好这种病,那将是一个奇迹。

If you will do it like that ,you will fail.(坚持)坚持那样做,你就会失败。

If you will buy bread ,I shall buy beer .(选择)如果你买面包,我就买啤酒。

If you won't lend money to him,please let me know.

(计划)如果你不打算借钱给他,让我知道。

另:下面句子中的will表示“难免”。

Accidents will happen.事故难免会发生。

Boys will be boys .男孩子总是男孩子。

⑶will可以用来表示某些根据自然规律必定会发生的事情,并且此时可以用一般现在时来代替它。

Oil will float on water .油能在水上漂流。

If the pure water is heated to 100°C, it will boil(可以用boils).

如果纯净的水加热至100°C,它就会沸腾。

Stainless steel will not rust .不锈钢是不会生锈的。

Matches will not strike if they are damp.火柴如果潮湿,就划不着。

练习题:

?Only in summer________ .

A.will the ice melt

B.the ice will melt

C.the ice can melt

D.the ice melts

?I f you_______wait a moment ,I′ll go to see if Mr.Johns is free .

A.shall

B.will

C.would

D.need

6.need

⑴作为情态动词时主要用在否定句和疑问句中,但是也可以用在用条件的肯定句中,这个条件是:肯

定句中必须含有某些含某种否定含义的词语,例如only ,but ,all,before等或者说句子中暗含某

种否定含义。

One need only consider the facts .否定含义是:只需考虑这些事实,不必去做别的事。

He need do it but once .否定含义是:他不必做两次以上。

All he need do is state his opinion clearly.

否定含义是:只要清楚地陈述自己的观点,他不必做任何事。

练习题:

To become a member of the civic association ,one need only attend three meetings ,and

________ his fees regularly.

A. pay

B.to pay

C.paying

D.paid

⑵didn't need to和needn't have done 的区别:

前者表示没有必要做实际上也没有做某事,后者表示做了不该做的事情。

They didn't need to come here.他们不必来这儿(实际也没来)。

They needn't have come here.他们本来不必来这儿(但是实际来了)

They did not need to arrive so early .他们不必很早到达。

She was too nervous to reply ,but fortunately she did not need to say nothing .

她紧张的无法答话,但是幸运的是她什么也不需要说。

You needn't have told them that .你本不必把这件事情告诉他们。

练习题:

①You ______such a long essay ,the teacher only asked for 300 words ,and you have

written 600 words .

A.mustn't have written

B.needn't have written

C.ddn't have to write

D.didn'need to write

②You______all those calculations !We have a computer to do that sort of thing.

A.mustn{'t have done

B.must not have done

C.shouldn’t have done

D.can not have done

7.may / might well+动词原形或may/ might as well+动词原形

May /might well+动词原形意思为“理应,有足够的理由”;may / might as well +动词原形

意思为“还不如,不妨,还是…的好”,表示某人应该做某事,因为没有更好的事、没有更有趣的

事或没有更有用处的事可以做。May as well 可能比might as well 更加肯定一点。

He may well be proud of his son .他大可以他的儿子为荣。

She may well say so .她说的对。(有足够的理由这样说)

It is very late ,so you may / might as well go to bed .夜深了,不妨去睡吧。

We may / might as well have something to eat .我们还不如吃点东西。

You may / might as well repeat the experiment .你还是把这个实验重做一遍为好。

注:may / might (as) well 的否定式是may / might (as)well+not .

练习题:

①Since she is angry , we_______her alone .

A.had better leaving

B.should leave

C.might as well leave

D.had rather leave

8.should

⑴可以表示估计或推测上的′应该`,还可以翻译成可能,该,估计,按理应当等等。

The report is written after careful investigation , so it should be reliable .

这份报告是经过周密调查写成的,所以该是可靠的。

So far so I know you shouldn`t have any problems there .

据我所知,你们在那儿不应该有什么麻烦。

They should be there by now ,I think .我想他们现在该到那儿了。

⑵表示惊讶,不以为然等情绪,用于某些句型中,多译为′竟然`;经常用于疑问句和感叹句中表示

意外,惊异等情绪,常和疑问词(why , how , whom,what)连用,而且疑问句不必回答。

I think it is dreadful that anyone should be so miserable .我想非常糟糕,每个人都竟然如此悲伤。

It seems unfair that this should happen to me .这种事情竟然发生在我的身上,好像不公平。

You can′t imagine that such a good student like him should fail in the exam .

你无法想象像他这样如此好的学生竟然在考试中失败了。

Why should I fear ? 我会害怕?(=I don`t fear at all .)

What should I see but misery ?所见皆是一片凄惨。(=I could see nothing but misery .)

Should you be so silly ? 你会这么傻吗?(=You are not so silly .)

I was thinking of going to see John when who should appear but John himself .

我还想着去看约翰,想不到约翰来啦。

It is a marvel that she should have survived the disaster .她竟从那场灾难中幸存,真是个奇迹。

I can`t bear that he should speak ill of me .他竟说我的坏话,我难以忍受。

I consider it a good joke that he should marry such a woman .他竟然同这样一个女子结婚,真是个笑话。

That he should speak to you like that is quite astonishing.他竟然这样对你说话,实在让人吃惊。

情态动词can的用法及一般疑问句whatquestions

情态动词"can“的用法 情态动词不能独立作谓语,不以人称和数量的变化而变化,后接动词原形,也就是说情态动词和动词原形一起构成谓语。我们常见的情态动词有:can,must,would等。接下来,我们就来学习一下情态动词"can"的用法。 ①表示能力,"can"译为"能;会" 例句:I can speak English. 译:我会说英语。 She can dance. 译:她会跳舞。 ②表示可能性,"can"译为"可能;会" 例句:Can you sing 译:你会唱歌吗 Can you swim 译:你会游泳吗 ③"can"用在肯定句中:主语+can+动词原形 例句:I can play the guitar. 译:我会弹吉他。 I can join the music club. 译:我可以加入音乐俱乐部。 ④"can"用在一般疑问句中:Can+主语+动词原形 肯定回答:Yes,主语+can 否定回答:No,主语+can't 例句:Can he play chess 译:他会下国际象棋吗 Yes,he can. 译:是的,他会。 NO,he can't. 译:不,她不会。 ⑤"can"用在否定句中:主语+can't+动词原形(can't 是 can not 的缩写) 例句:She can't play the piano well. 译:她弹不好钢琴。 I can't sing. 译:我不会唱歌。 ⑥"can"用在特殊疑问句中:特殊疑问词+can+主语+动词原形 例句:What can you see in the room 译:在房间里你能看见什么 ⑦当特殊疑问词是句子的主语时:特殊疑问词+can+动词原形 例句:Who can answer my question 译:谁能回答我的问题 注意事项 "can"后一定要接动词原形。 "can" 不以人称和数量的变化而变化。

情态动词表推测用法总结(整理稿)

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情态动词的一些特殊用法 情态动词本身有语义, 表示说话人的语气或情态, 但语义不完整, 不能单独作谓语动词, 一般只能与动词原形一起构成谓语动词。现就考试中出现频率高的情态动词及其用法作些说明: 一、must 与must有关的题型经常与其后面应跟什么时态有关. 在有must的句中, 常表示说话人在进行依据较充分的推测。至于用哪些时态, 则有两个参考标准: 句中的时间状语和句间的关系。 Y ou look so sleepy. Y ou must have sat up late last night. 你看上去这么困倦, 昨晚一定睡得很晚。 I mailed that letter a week ago. He must have received it. 我一周前就发出了那封信, 想必他一定收到了。 must + have + -ed分词: 用于肯定句, 表示对过去情况的推测, 意为“肯定, 一定”。 Y ou had only a little egg at breakfast today. Y ou must be hungry now. Must 加动词原形的进行式, 表示对现在发生动作和事物的猜测, 有“一定, 准是”的意思。 其它情态动词如may (might), should (ought to), can(could), need的用法分别如下: 二、may(might) may(might) + have + -ed 分词: 用于肯定句和其它否定句, 表示对已发生事情的不肯定的推测, 意为“可能, 大概”, 其中might较may语气更弱, 把握更小。 They may have derived inspiration from these words. 他们可能从这些话语中获得了灵感。 Our manager may (might) have gone to Guangzhuo attending Spring Fair there last week. 我们经理可能已于上周去广州参加春交会了。

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】情态动词知识点(大全)

【英语】情态动词知识点(大全) 一、初中英语情态动词 1.—Look! The woman at the school gate ______be her headmaster. —No, it ______ be her. She is holding a meeting in the office now. A. must; can't B. must; mustn't C. can; needn't D. may; mustn't 【答案】 A 【解析】【分析】句意:——看!学校门口的那个妇女一定是她的校长。——不,不可能是她。第一空,must表示“一定”;空二,根据She is holding a meeting in the office now. 她现在正在办公室开会,可知,不可能是校长,用can't,表示不可能。故选A。 【点评】考查情态动词辨析。注意不同情态动词的用法,注意理解句意。 2.—I've bought all the food for the party tonight. —Thank you. Then I _______ go to the supermarket. A. can't B. mustn't C. shouldn't D. needn't 【答案】 D 【解析】【分析】句意:-今天晚上我买好了所有晚会的食物。-谢谢你。那么我就不必去超市了。A. can't不能;B. mustn't不准,不允许,禁止;C. shouldn't不应该;D. needn't 不必。你买好了,我就不必去买了。故选D。 【点评】考查情态动词,表示不必要应使用need的形式,要牢记不同的情态动词的意思。 3.Teenagers allowed to drive . A. should not be B. should be not C. not should be 【答案】A 【解析】【分析】句意:年轻人不应该被允许驾车。Should是情态动词,其否定表达一般在在后面加副词not,故选A。 【点评】此题考查含有情态动词的被动语态的否定形式。平时注意记忆情态动词的记忆和用法。 4.—Where is Mom now? —I'm not sure. She _________ be in the kitchen. A. shall B. may C. need D. must 【答案】 B 【解析】【分析】句意:—妈妈现在在哪里?—我不确定,她也许在厨房。A. shall 将要; B. may 可以,可能; C. need 需要; D. must必须,一定;根据I'm not sure可知是不确定;故选B。 【点评】此题考查情态动词表推测的用法。 5.—Who it be that is knocking at the door? —It be father, but I'm not sure.

初中英语情态动词用法归纳

初中英语情态动词用法归纳 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 lean 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'译为不可能”女口:Can the news be true?这个消息会是真的吗?一Can it be our teacher那个人有可能是我们老师吗?一No, it can' t be our teacher. He is on a visit to the GreatlW不可能。咱们老师正在游览长城呢。 【例题】一I think Miss Gao must be in the library. She said she would go ther—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'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。女口: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?一Could I use your pen?我能用一下你的钢笔吗?一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】一______ 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 .

情态动词can的基本用法

情态动词can的基本用法: 情态动词can有一定的词义,但不能独立存在,它必须与动词原形一起构成谓语。情态动词can没有人称和数的变化。其具体用法如下: 1. 表示"能、会",指脑力或体力方面的"能力"。例如: I can speak En glish. 我会讲英语。 Jim can swim but I can't. 吉姆会游泳,但我不会。 2. 表示"可能",常用于否定句或疑问句中,指某种可能性,此时can 't译为“不可能”。例如: Han Mei ca n't be in the classroom. 韩梅不可能在教室里。 Can he come here today, please? 请问他今天能到这里来吗? 3. 表示"可以",常用于口语中,指许可或请求做某事,可以代替 may。例如: Can I have a cup of tea, please? 请问我可以喝一杯茶吗? You can go out. 你可以出去了。 补充:can的过去式could,意为“能、会”,表示过去的能力 女口: He could write poems when he was 10. 他十岁时就会写诗。 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?一 Could I use your pen?我能用一下你的钢笔吗?一Yes, you can.可以。(注意回答) 情态动词can的基本句型:

1. 肯定句型为:主语+can+动词原形+其它。例如: They can play basketball. 他们能打篮球。 She can dance.她会跳舞。 You can go to watch TV. 你可以去看电视了。 2. ........................... 否定句型为:主语+can not(can't/cannot)+ 动词原形+其它。表示"某人不能(不会。不可能)做其中can't是can not的缩略式,英国多写成cannot。例如: You cann ot pass the ball like this. 你不能像这样传球。 I ca n't ride a motorbike. 我不会骑摩托车。 3. 疑问句句型分为:一般疑问句句型和特殊疑问句句型两种类型。 ⑴一般疑问句句型为:Can+主语+动词原形+其它。表示"某人会(能。可以)做吗?",用于口语时,常表示请求或许可。其肯定答语用""Yes,主语+can."作答; 否定答语用"No,主语+can't."作答。注意答语中做主语的人称代词,应根据问句中的主语作相应的变化。其变化规则为:第一人称问,则第二人称答;第二人称问,则第一人称答;第三人称问,第三人称答。例如: ①-Can you sing an En glish song for us? 你可以为我们大家唱一首英语歌吗?

情态动词的基本用法归纳

情态动词的基本用法归纳 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。 一、can, could 1) 表示能力(体力、知识、技能)。 Can you lift this heavy box?(体力) Mary can speak three languages.(知识) Can you skate?(技能) 此时可用be able to代替。Can只有一般现在时和一般过去式;而be able to则有更多的时态。 I’ll not be able to come this afternoon. 当表示“经过努力才得以做成功某事”时应用be able to,不能用Can。如: He was able to go to the party yesterday evening in spite of the heavy rain. 2) 表示请求和允许。 -----Can I go now? ----- Yes, you can. / No, you can’t. 此时可与may互换。在疑问句中还可用could,might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。 ---- Could I come to see you tomorrow? ---- Yes, you can. ( No, I’m afraid not. ) 3) 表示客观可能性(客观原因形成的能力)。 T hey’ve changed the timetable, so we can go by bus instead. This hall can hold 500 people at least. 4) 表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。 Can this be true? This can’t be done by him. How can this be true? 二、may, might 1) 表示请求和允许。might比may语气更委婉,而不是过去式。否定回答时可用can’t 或mustn’t,表示“不可以,禁止”。 ----Might/ May I smoke in this room? ---- No, you mustn’t. ---- May/Might I take this book out of the room? ---- Yes, you can. (No, you can’t / mustn’t. ) 用May I...?征徇对方许可时比较正式和客气,而用Can I...?在口语中更常见。 2)用于祈使句,表示祝愿。 May you succeed! 3) 表示推测、可能性(不用于疑问句)。 might不是过去式,它所表示的可能性比may小。 1.He may /might be very busy now. 2.Your mother may /might not know the truth.

情态动词的特殊用法

情态动词的特殊用法 1. _____ fired, your health care and other benefits will not be immediately cut off. A. Would you be B. Should you be C. Could you be D. Might you be 2. —What’s the name? —Khulaifi. _____ I spell that for you? A. Shall B. Would C. Can D. Might 3. John, look at the time. _____ you play the piano at such a late hour? A. Must B. Can C. May D. Need 4. —Must I turn off the gas after cooking? —Of course. You can never be _____ careful with that. A. enough B. too C. so D. very 5. Some aspects of a pilot’s job _____ be boring, and pilots often _____ work at inconvenient hours. A. can;have to B. may;can C. have to;may D. ought to;must 6. —When can I come for the photos? I need them tomorrow afternoon. —They _____ be ready by 12:00. A. can B. should C. might D. need 7. When he was there, he ___ go to that coffee shop at the corner after work every day.A. would B. should C. had better D. might 8. —Excuse me, but I want to use your computer to type a report. —You _____ have my computer if you don’t take care of it. A. shan’t B. might not C. needn’t D. shouldn’t 9. You can’t imagine that a well-behaved gentleman _____ be so rude to a lady. A. might B. need C. should D. would 10. Many people agree that _____ knowledge of English is a must in _____ international trade today. A. a;不填 B. the;an C. the;the D.不填;the 11. How _____ you say that you really understand the whole story if you have covered only part of the article? A. can B. must C. need D. may 12. The fire spread through the hotel quickly but everyone _____ get out. A. had to B. would C. was able to D. could 13. There’s no light on — they ____ be at home. A. can’t B. mustn’t C. needn’t D. shouldn’t 14. Tom, you _____ leave all your clothes on the floor like this! A. wouldn’t B. mustn’t C. needn’t D. may not 15. _____ we never forget each other. A. May B. Can C. Must D. Should 练习: 1. Mr. Bush is on time for everything. How ____ it be that he was late for opening ceremony?A. can B. should C. may D. must 2. Naturally, after I told her what to do, my daughter _____ go and do the opposite! A. may B. can C. must D. should 3. It has been announced that candidates _______ remain in their seats until all the papers have been collected. A. can B. will C. may D. shall 4. “The interest ___________ be divided into five parts, according to the agreement made by both sides,” declared the judge. A. may B. should C. must D. shall 5. You can’t imagine that a top student ______ have failed in the college entrance examination. A. might B. need C. should D. would 6. Football, as is known to the world, _______ be exciting and inviting. A. should B. might C. can D. will 7. —_____ he open the door? —Yes, please. A. Shall B. Will C. Can D. Would 8. The World Wide Web is sometimes jokingly called the World Wide Wait because it _____ be very slow. A. should B. must C. will D. can 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. It’s nearly seven o’clock. Jack _____ be here at any moment. A. must B. need C. should D. can 11. What should we do if it _____ tomorrow? A. should snow B. would snow C. snow D. will snow 12. You _____ use my bike on condition that you give it to me before I leave here. A. should B. must C. ought to D. shall 常见的通常只能用主动语态的场合 1. 当谓语动词是不及物动词,又不能构成动词短语接宾语时。 2. 当宾语是反身代词时。如I hurt myself. 3. 当宾语是相互代词时。如We should learn from each other. 4. 当宾语是不定式、动名词时。如I want to watch TV. / They enjoy playing basketball. 5. 当谓语动词是拥有、容纳类动词(have, hold)时。如I have a big family. / The room can hold 40 people. 6. 当谓语动词是开始、结束类动词(start, begin, stop, end, finish)时。如The first class will start at 8:00. / The film ended when I got there. 7. 当谓语动词是开张、关门类动词(open, close)时。如The shop usually opens before 8:30. 8. 当谓语动词是花费类动词(take, cost)时。如The new dress cost her 90 dollars. 9. 当谓语动词是发生类动词(happen, take place)时。如Something strange happened an hour ago. 10. 当谓语动词是保持类动词(keep)时。如The hall keeps quiet now. 11. 当谓语动词是运动、变化类动词(leave, move, change)时。如The train is leaving. / Things have changed a lot. / The car didn’t move. 12. 当谓语动词是变得、成为类动词(become, get, turn)时。如The teacher became angry. / The weather is getting warmer and warmer. 13. 当谓语动词是…起来类动词时。具体细分如下: ○1半系动词(look, sound, feel, smell, taste)。如The building looks very tall. / That piece of music sounds nice. / The dish smells delicious. ○2其它类动词(eat, drink, cook, drive, work, read, write, sell, show, play, clean, wear, wash, burn等)。如This kind of fruit eats crisp (脆). / Orange drinks sweet. / The car drives smoothly. / This text reads easily. / The pen writes well. / The clothes wash hard. 14. 当宾语前有与主语一致的物主代词,且宾语名词为身体的一部分时。如He cut his finger. 15. 当谓语动词是由have / take构成的词组(have a cold, have/take a rest, have/take a walk)时。如I had a cold yesterday. 16. 当谓语动词是need, 且主语是物,后接动名词时。如My bike needs repairing. 17. 当不定式作定语时。如I have a lot of housework to do. / He wants a house to live in. 18. 当不定式作表语形容词的状语时。这里所说的表语形容词即作表语的形容词;所说的状语即修饰该形容词的程度状语。

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