情态动词考点聚焦

2024-11-18

情态动词考点聚焦(10篇)

1.情态动词考点聚焦 篇一

will基本含义

modal谈及将来;(表示愿意)愿,要,会,定要;烦劳别人做事时用

v.想要;希望;愿意;喜欢

v.立定志向;决心;决意;想要(某事发生);立遗嘱将(财产等)赠与(某人);立遗嘱赠与

n.意志;毅力;自制力;意愿;心愿;遗嘱

第三人称单数:wills

复数:wills

现在分词:willing

过去式:would

过去分词:willed

情态动词和助动词

用作助动词

will用作助动词,表示将来,用于构成将来时态。

用作情态动词

1.表示意愿,其意为“愿意”“想要”。

2.表示请求,意为“请……”“……好不好”。

3.表示可能性,意为“可能”“该是”“很可能”。

4.表示命令,意为“要”“得”。

5.表示习惯或倾向性,意为“总是”“惯于”。

will双语例句

We have no idea how she will do that.

我们不知道她将怎样做那件事。

Either you or your father will go with her.

或者你或者你爸爸将与她一起去。

And,if yes,when will it be and what will it look like?

此外,如果是的,将于何时和如何将它会是什么样子?

2.情态动词考点聚焦 篇二

( 一) may,might表示“也许、或许、可能”,might的可能性比may小,多用于肯定句中; may not,might not表示“可能不”,might not语气较may not委婉,可能性也小一些;

( 二) must表示推测意为“一定、必定”,其可能性很大,只用于肯定句中;

( 三) can表示推测意为“或许、可能”,多用于否定句和疑问句;can’t表示“不可能”。

【中考传真】

1. — Look at the boy playing basketball on the ground. Is it George?

—It be him. He told me he would play basketball afterclass,but he’s not sure. ( 2013年兰州市)

A. mustn’t B. must C. can’t D. may

2. — Who’s singing in the bathroom?

—It be Mr. Brown. Nobody sings like that except him.( 2013年杭州市)

A. will B. must C. could D. should

考点二: can / could的用法

( 一) can / could表示能力时意为“能、会”,有能力去做某事。can用于现在时,could用于过去时;

( 二) can / could表示请求和许可时,意为“可以”。这一用法中,can和could均表示现在,但在语气上could比can委婉、客气。句式Can( Could) I / We. . . ? 常用来表示要求或允许; 句式Can ( Could )you. . . ? 常用来表示请求。对Could I . . . ? 句式作肯定回答时要用can。

【中考传真】

3. — Paulina has lost her phone.

—No. It’s in her bag. I hear it. ( 2013年杭州市)

A. must B. can C. may D. shall

4. Lat year I drive. I used to take the bus. ( 2013年南昌市)

A. could B. couldn’t C. should D. shouldn’t

考点三: must的用法

( 一) 回答由must提问的一般疑问句,肯定回答仍用must,否定回答常用needn’t或don’t have to,表示较为委婉的语气,意为“不必、不需要”;

( 二) 在否定句中,mustn’t表示禁止,意为“不允许”;

( 三) must意为“应该、必须”,表示说话人的主观看法,认为有必要、有义务做某事; have( has) to意为“不得不、必须”,但主要强调由于外界客观因素的影响需要那样做。

【中考传真】

5. If you go,at least wait until the rain stops. ( 2013年苏州市)

A. can B. may C. must D. will

6. — Must I go to medical school and be a doctor like you,Dad?

—No,you ,son. You’re free to make your own decision.( 2013年上海市)

A. can’t B. mustn’t C. shouldn’t D. needn’t

7. — Can we run across the road now?—No,we . We have to wait until the light turns green. ( 2013年西安市)

A. needn’t B. mustn’t C. couldn’t D. shouldn’t

考点四: will / would的用法

will和would用作情态动词时,表示意愿、建议和意志,意为“要、愿”,其否定式won’t意为“不愿”。用于第二人称表示询问、请求,此时用would语气比用will更礼貌些。

【中考传真】

8. — Tim and I will visit the exhibition this weekend. Would you liketo join us?

— . ( 2013年上海市)

A. Well done.

B. That’s right.

C. You’re welcome

D. I’d love to.

考点五: used to的用法

used to意为“过去常常”,后接动词原形,没有人称和数的变化,表示过去一个习惯性的动作或存在的状态。注意: be used to意为“习惯于……”,其中的to为介词,后接名词、代词或动词的 - ing形式。

【中考传真】

9. — Peter has changed a lot,hasn’t he?

—Yes. He used to the guitar,but now he is more inplaying soccer. ( 2013年四川省达州市)

A. plays; interested

B. play; interested

C. play; interesting

D. playing; interest

考点六: 含情态动词的被动语态

含情态动词的被动语态由“情态动词 + be + 及物动词的过去分词”构成。其中“can / must / should + be + 过去分词”最为常见。

【中考传真】

10. Thanks to the Internet,different kinds of information in ashort time. ( 2013年南京市)

A. can be learned

B. has been learned

C. can learn

D. has learned

3.中考英语情态动词考点透视 篇三

一、 考查 must 的用法

(一) 考查 must 表示“义务”含义时的用法

在这一用法中, must 意为“必须”、“应该”,表示必须要做某事。例如:

1. You_________be careful with fire when you have a picnic in the forest. It’s too dangerous.

A. willB. must

C. canD. may(2005年安徽省课改卷)

2. Cars, buses and bikes _________ stop when the traffic light is red.

A. canB. must

C. mayD. need(2005年北京市)

在此我们还需要注意以下两点:

1) must 和 have to 的用法区别: must 表示说话人的主观看法,而 have to 则表示客观需要,意为“不得不”。例如:

(1) I’m sorry. I_________go now. My father told me on the phone that my mother was ill.

A. canB. may

C. have toD. think(2005年厦门市课改卷)

(2) Don’t play computer games again. You_________study hard.

A. canB. may

C. mustD. needn’t(2005年贵州省课改卷)

2) mustn’t 和 needn’t 的区别: mustn’t 意为“禁止”,含不许对方做某事之意,而 needn’t 表示“不必”、“没有必要”的意思,因此,以 must 开头的一般疑问句的否定回答,应用 needn’t,而不用 mustn’t。例如:

(1) You children_________play near the street. It’s not safe.

A. mustn’tB. needn’t

C. won’t(2005年武汉市)

(2) —Mum, must I do my homework now?

—No, you_________ . You can do it after supper.

A. mustn’tB. can’t

C. shouldn’tD. needn’t(2005年甘肃省)

(二) 考查 must 表示“推测”含义时的用法

must 在表示“推测”意义时,意为“一定”、“肯定”,表示说话人非常有把握的推测,通常用于肯定句中。例如:

1. Alice has been in China for several years. She_________be a big girl now.

A. needB. must

C. canD. may(2005年杭州市)

2. Even the best student in our class couldn’t answer this question, so it_________be very difficult.

A. mustB. could

C. mayD. can(2004年广东省)

二、 考查 can 的用法

(一) 考查 can 表示“能力”含义时的用法

在表示“能力”含义时, can 意为“能”、“会”,其否定形式为 can’t,意为“不能”。在过去时中用 can 的过去式 could,其否定形式为 couldn’t。例如:

1. Excuse me, read the text louder, please. I_________hear you clearly.

A. can’tB. wouldn’t

C. needn’tD. may not(2004年河北省)

2. There’s an old saying: the cleverest housewife_________cook a meal without rice.

A. mayB. mustn’t

C. needn’tD. can’t(2004年云南省)

(二) 考查 can 表示“推测”含义时的用法

在表示“推测”含义时, can 意为“可能”,表示客观可能性,通常用在疑问句和否定句中。例如:

1. —Look! Mr Hu is on the other side of the street.

—It_________be him. He has gone to Lanzhou.

A. mustn’tB. can’t

C. shouldn’tD. won’t(2005年武汉市课改卷)

2. —They say Mr Chen has gone to Hong Kong._________that be true?

—It_________be true because I saw him in the office ten minutes ago.

A. May; may notB. Can; can’t

C. May; mustn’tD. Can; may not(2003年镇江市)

(三) 考查 can/could 表示“请求”及“许可”含义时的用法。

在这一用法中, could 比 can 的语气更加委婉、客气,常用于 “Could I(you)...?”句式中,表示“我(你)能……吗?”的意思。肯定回答用 can/may, 不用 could。例如:

1. —Could I take this seat?

—Yes, you_________ .

A. couldB. may

C. mustD. need(2004年甘肃省)

2. —Could I look at your pictures?

—Yes, of course you_________ .

A. couldB. can

C. willD. might(2003年武汉市)

三、 考查 may 的用法

(一) 考查 may 表示“请求”及“许可”含义时的用法

在这一用法中,may 常与第一人称I连用,构成“May I ...?”句式,意为“我可以……吗?”。肯定回答用“Yes, you may.”或“Yes, please.”;否定回答用“No, you can’t/mustn’t.”,不用“No, you may not.”。例如:

1. —_________ I borrow your MP3?

—Sure. Here you are.

A. MayB. Should

C. MustD. Would(2005年北京市课改卷)

2. —May I go surfing alone this afternoon, Dad?

—No, you_________ . It is dangerous.

A. may notB. can’t

C. needn’tD. don’t(2005年辽宁省)

3. —May I put my bike here?

—No, you_________ . You should put it over there.

A. couldn’tB. needn’t

C. mustn’tD. won’t(2004年北京市)

(二) 考查 may 表示“推测”含义时的用法

在表示“推测”含义时, may 意为“也许”、“可能”,通常用于肯定句中。例如:

1. —What are you going to eat for supper?

—I_________have noodles.

A. need toB. must

C. mayD. can

(2005年宁夏回族自治区课改卷)

2. —Where’s Lucy?

—I am not sure. She_________ in the school library.

A. maybeB. must be

C. may beD. will be(2005年山西省)

四、 考查 need 的用法

need 用作情态动词时,表示“需要”的意思,主要用于否定句和疑问句中。例如:

1. —I don’t mind telling you what I know.

—You_________ . I’m not asking you for it.

A. needn’tB. mustn’t

C. may notD. can’t(2005年海南省)

2. —Where is my umbrella?

—It’s fine today. You_________take an umbrella with you.

A. can’tB. needn’t

C. mustn’tD. shouldn’t(2004年南京市)

五、 考查 should 的用法

should 含有“劝告”、“建议”、“义务”或“预测”等含义,常译为“应该”、“应当”等。例如:

1. We_________keep the traffic law and learn how to protect ourselves.

A. mayB. should

C. canD. need(2004年上海市)

2. —Is Peter here yet?

—Not yet, but he_________be here soon. He usually is on time.

A. wouldB. could

4.英语情态动词用法 篇四

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)。

They’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.

三、must, have to

1) 表示必须、必要。

You must come in time.

在回答引出的问句时,如果是否定的,不能用mustn’t(禁止,不准),而用needn’t, don’t have to(不必).

---- Must we hand in our exercise books today?

---- Yes, you must.

---- No, you don’t have to / you needn’t.

2) must是说话人的主观看法, 而have to则强调客观需要。Must只有一般现在时, have to 有更多的时态形式。

1. he play isn’t interesting, I really must go now.

2. I had to work when I was your age.

3) 表示推测、可能性(只用于肯定的陈述句)

1. You’re Tom’s good friend, so you must know what he likes best.

2. Your mother must be waiting for you now.

四、dare, need

1) dare作情态动词用时, 常用于疑问句、否定句和条件从句中, 过去式形式为dared。

1. How dare you say I’m unfair?

2. He daren’t speak English before such a crowd, dare he?

3. If we dared not go there that day, we couldn’t get the beautiful flowers.

2) need 作情态动词用时, 常用于疑问句、否定句。在肯定句中一般用must, have to, ought to, should代替。

1.You needn’t come so early.

2. ---- Need I finish the work today?

---- Yes, you must. / No, you needn’t.

3) dare和 need作实义动词用时, 有人称、时态和数的变化。在肯定句中,dare后面常接带to的不定式。在疑问句和否定句中,dare后面可接带to或不带to的不定式。而need后面只能接带to的不定式。

1. I dare to swim across this river.

2. He doesn’t dare (to) answer.

5.情态动词的用法 篇五

1. he play isn’t interesting, I really must go now.

2. I had to work when I was your age.

3) 表示推测、可能性(只用于肯定的陈述句)

1. You’re Tom’s good friend, so you must know what he likes best.

2. Your mother must be waiting for you now.

四、dare, need

1) dare作情态动词用时, 常用于疑问句、否定句和条件从句中, 过去式形式为dared。

1. How dare you say I’m unfair?

2. He daren’t speak English before such a crowd, dare he?

3. If we dared not go there that day, we couldn’t get the beautiful flowers.

2) need 作情态动词用时, 常用于疑问句、否定句。在肯定句中一般用must, have to, ought to, should代替。

1.You needn’t come so early.

2. ---- Need I finish the work today?

---- Yes, you must. / No, you needn’t.

3) dare和 need作实义动词用时, 有人称、时态和数的变化。在肯定句中,dare后面常接带to的不定式。在疑问句和否定句中,dare后面可接带to或不带to的不定式。而need后面只能接带to的不定式。

1. I dare to swim across this river.

2. He doesn’t dare (to) answer.

3. He needs to finish his homework today.

五、shall, should

1) shall 用于第一人称,征求对方的意见。

What shall we do this evening?

2) shall 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。

1. You shall fail if you don’t work hard.(警告)

2. He shall have the book when I finish it.(允诺)

3. He shall be punished.(威胁)

六、will, would

1) 表示请求、建议等,would更委婉。

Will / Would you pass me the ball, please?

2) 表示意志、愿望和决心。

1. I will never do that again.

2. They asked him if he would go abroad.

3) would表示过去反复发生的动作或某种倾向。would表示过去习惯时比used to正式,且没有“现已无此习惯”的含义。

1. During the vacation, he would visit me every other day.

2. The wound would not heal.

4) 表示估计和猜想。

It would be about ten o’clock when she left home.

七、should, ought to

1) should, ought to表示“应该”,ought to表示义务或责任,比should语气重。

1. I should help her because she is in trouble.

2. You ought to take care of the baby.

2) 表示劝告、建议和命令。should, ought to可通用,但在疑问句中常用should。

1. You should / ought to go to class right away.

2. Should I open the window?

3) 表示推测

should , ought to (客观推测), must(主观推测)。

1.He must be home by now. (断定他已到家)

2.He ought to/should be home by now.(不太肯定)

3. This is where the oil must be.(直爽)

4. This is where the oil ought to/should be.(含蓄)

八、情态动词+不定式完成式(have done)

1) can / could + have done在肯定句中表示“本来可以做而实际上能做某事”,是虚拟语气;在疑问句或否定句中表示对过去行为的怀疑或不肯定, 表示推测。

1. You could have done better, but you didn’t try your best. (虚拟语气)

2. He can’t have been to that town.(推测)

3. Can he have got the book?(推测)

2) may / might +不定式完成式(have done)

表示对过去行为的推测。不能用于疑问句中,没有虚拟语气的用法。Might所表示的可能性比may小。

1. He may not have finished the work .

2. If we had taken the other road, we might have arrived earlier.

3)must +不定式完成式(have done)

用于肯定句中,表示对过去行为的推测。意为“一定、想必”。其疑问、否定形式用can,can’t代替。参看1) can / could + have done表示推测。

1. You must have seen the film Titanic.

2. He must have been to Shanghai.

4)should +不定式完成式(have done)

用于肯定句中,表示对过去行为的推测。

He should have finished the work by now。

表示“本应该做而实际上没有做某事”,其否定式表示某种行为本不该发生却发生了。可以与ought to +不定式完成式(have done)互换。

1. You ought to / should have helped him. (but you didn’t.)

2. She shouldn’t have taken away my measuring tape, for I wanted to use it.

5) needn’t +不定式完成式(have done)

表示“本来不必做而实际上做了某事”。

You needn’t have watered the flowers, for it is going to rain.

6) will +不定式完成式(have done)

主要用于第二、三人称,表示对已完成的动作或事态的推测。

6.点击情态动词could 篇六

Could you / I... (please)?是口语中一个常见的句型,这时的could 不是过去时形式,而是现在时形式,它表示一种委婉客气的语气。当别人客气地请求你做某事时,你若愿意做,就用“Certainly”,“Sure”,“Yes”,“OK”等回答;出于某种原因,你不能做某事时,用“Sorry,I am afraid not”(对不起,恐怕不行)回答,一般不直接说“No”。例如:

1) -Could you help me with my English? 你能帮助我学习英语吗?

-Certainly!当然可以!

2)-Could you go to the shop with me now? 你现在能同我一起去商店吗?

-Sorry. I have a lot of work to do。对不起,我有很多工作要做。

could 除了以上用法外,它还是情态动词can 的过去式,表示过去“可能”的事实。例如:

I listened but I could not hear any sound. 我听了听,可是听不见什么声音。

7.情态动词易混及易考点归纳 篇七

1. It is possible that the King of Stonehenge was linked to the stones: he (可能参与) in planning the monument, or in helping transport and pull up the stones. (hand)

2. He looks sleepy. He must

(熬夜了) last night, writing the essay. (stay)

3. It’s said that they have swum to the island from the continent, but they (不可能做到) because the ocean in between is too wide. (do)

解析 这三道题都是近几年湖北卷的英语高考题,都考查了“情态动词+have done(完成时)”表示虚拟的用法。同学们需要细细领会句子的情景特征,抓住考点,并正确识记词语搭配,如第1题,除要用到“情态动词+have done” 结构之外,还要记住搭配have a hand in doing something。当年此题得分率非常低。

【参考答案】

1.may/might/could have had a hand

2. have stayed up

3. can’t/couldn’t have done it/so/this/that

一、几组易混情态动词的用法

1.must与have to

must“必须”,强调主观上的看法,have to“不得不”,强调客观条件所迫。

例:It’s the office! So you must know eating is not allowed here.

There is no butter left, so we have to go without it.

must的否定式为mustn’t,表示“禁止”之意。如:

You must not smoke here.

注意 回答对must的疑问句时有所变化,例:

Must I do it at once?

— Yes, you must.

— No, you needn’t/you don’t have to.

2. can与could

二者都可以表示能力、客观可能性、许可或容许、请求、惊异、怀疑、不相信的态度等。could是can的过去时,但表示请求时,could比can语气更显委婉、礼貌。

例:Her mother can speak French. (表示能力)

Man cannot live without air. (表示可能性)

You can sit here. (表示许可)

Could I borrow your pen? (表示请求)

Hou can you be so careless! (表示惊异)

3.may与might

二者都可以表示猜测,允许,但表示猜测时,might比may的可能性小。may还可以表示祝愿。

例:It may sound like a perfect destination, but it’s really dangerous. (表示猜测)

You may start writing now—the examination will finish in three hours. (表示允许)

May you succeed! (表示祝愿)

注意 回答对may的疑问句时有所变化,例:

May I watch TV now?

— Yes, you may.

— No, you mustn’t./you’d better not.

4. shall与should

shall用于第一人称时,表示征求对方的意见,用于第二、三人称时,表示说话人给对方的命令、警告、允诺或威胁,意为“一定要”。should表示建议、命令、劝告,意为“应该”,还可以表示没想到或惊讶,意为“竟然”。

例:Shall I/we meet at the school gate? (表示征求意见)

She shall go to the teacher’s office now. (表示命令)

He shall be punished if he goes on being absent from class. (表示警告)

Tell her that she shall have the book tomorrow.(表示允诺)

It’s a pity that he should be so careless in the examination. (表示惊讶)

5. need与dare

二者相同:既作情态动词,又作行为动词。作情态动词时,常用于否定句和疑问句,否定式为need/dare not do sth; 作行为动词时,need/dare to do,否定式为don’t/doesn’t/didn’t need/dare to do。

例:You needn’t call him.

Dare you go home alone at eleven in the evening?

区别:need意为“需要;必须”, dare意为“敢”,其作为情态动词有过去式为dared do sth。例:

She dared not go out at night when she was young.

注意 回答对need的疑问句时有所变化,例:

Need I tell you the news?

— Yes, you must.

— No, you needn’t.

二、“情态动词+完成时(have done)”的用法

1. must have done表示对过去行为的肯定推测(用于肯定句),意为“一定;肯定”,若用于否定句或疑问句,则用can’t/couldn’t have done,意为“不可能做了……”。

例:I’m sorry. I didn’t hear the bell. I must have fallen asleep.

I saw Mr Wang just now. He couldn’t have gone to Beijing.

2. should/ought to have done表示“本该做某事而实际未做”。

否定式:shouldn’t/oughtn’t to have done表示“本不该做而实际做了”。

例:You should have been here five minutes ago.

You shouldn’t have come here alone at such a late hour.

What you ought to have done is calling the police.

3. could have done表示“本可以做而实际未能做”。

否定式:can’t/couldn’t have done,Can/Could…have done?用于否定句与疑问句时,表示对过去发生行为的怀疑或不肯定。

例:We could have solved the problem in a more reasonable way.

She can’t/couldn’t have left school, for her bike is still here.

Can he have gone to his aunt’s?

4. (1)may/might have done表示对过去(将来)发生行为的推测,意为“可能干了某事”,也可以用于否定句。

例:It’s too late. He may have gone to bed.

He may not have finished the work.

Who knows what will happen? You may even have married by then.

(2)might have done表示本来可以做某事却未做,表一种责备的语气。

例:You might have given him more help, though you were busy.

What a pity! Considering his ability and experience, he might have done better!

5. needn’t have done表示本来不必做而实际上做了某事。

例:You needn’t have worked that late last night. It was harmful to your health.

I needn’t have borrowed the money yesterday.

6. 其他:

(1)had better have done意为“当时最好做了某事”。

例:You had better have started earlier.

(2)would rather have done意为“当时宁愿做了某事(而未做)”。

例:I would rather have taken his advice.

(3)would like/love to have done意为“本愿意做但未做成某事”

例:I would love to have gone to the party last night but I had to work extra hours to finish a report.

【练习】

1. Without the food in the village two years ago, these lovely children (本来能够度过一个快乐的童年). (pass)

2. It (一定下着大雨) when he got back home, for he was wet all over. (rain)

3. If you think that someone (可能中了毒),you should do the following. (poison)

4. I told your friend how to get to the hotel, but perhaps I (应该开车送她去那儿). (should)

5. Mr Bush is always on time for everything. (怎么可能)that he was late for the opening ceremony? (can)

6. What a pity! We (宁愿听取) our teacher’s advice yesterday. (would rather)

7. You can’t imagine that a well-behaved gentleman (竟然对一位女士这么粗鲁). (rude)

8. You (没有必要洗) all those clothes! We have a washing machine to do that sort of things. (wash)

9. Tom, you (不许把所有衣服放在) on the floor like this. (leave)

10. My cat is really fat. I (不该给它这么多吃的). (give)

【参考答案】

1. should have passed a happy childhood

2. must have been raining

3. may/might have been poisoned

4. should have driven her there

5. How can/could it have been

6. would rather have followed

7. should be so rude to a lady

8. needn’t have washed

9. mustn’t leave all your clothes

8.情态动词高考知识点 篇八

1、表示“必须”,多强调说话人的主观看法。

2、must和have to 的区别:

(1)must表示说话人的义务或说话人主观认为“必须,应当”做某事;have to表示由于某种外界原因而“必须,不得不”做某事。即must侧重说明主观看法,have to强调客观需要。

(2)must只有一种形式,可用于现在、过去或将来时,但have to有不同的形式,可用于不同的时态。

(3)在否定句中,don’t need to, don’t have to, needn’t表示没有义务;mustn’t表示禁止。

3、must的否定形式must not/ mustn’t 意为“不许,禁止”,表示绝对禁止。若表示“没必要,不必”,应使用needn’t或don’t have to。

注意:对must作否定回答时,不用mustn’t,用needn’t或don’t have to。

4、must 表示“偏偏”,指令人不快的事情。

9.情态动词can的教学反思 篇九

我边画简笔画边说: I can do a lot of things.What can I do? Do you want to know.Let me tell you.I can play table tennis.(画出第一幅图示并鼓励学生说出动词短语:play table tennis).I can play the piano.(画出第二幅图示并鼓励学生说出动词短语play the piano).I can stand on my head.(画出第三幅图示并鼓励学生说出动词短语stand on my head).然后我叫了五位学生,让他们做动作来告诉大家。我又问:What can he /she do? 让他们说出:I can…….引出另外五个短语:play football, swim, roller blade, ski,ride a horse.接着让学生根椐学过的动词短语用句型Ican ….I cannot….个自写出自己会做的事情和不会做的事情.然后让学生利用句型:What can I do? Can you…? Yes, I can.或No I can’t.互猜彼此会做的事情和不会做的事情。这样可以让学生所学语言产生兴趣,从而激发学生的学习欲望调动学生的学习积极性。

这样通过大量的、反复的、多种形式的操练,要求学生在量中求质,在速度中求准确。

10.中考英语:情态动词的特殊用法 篇十

1. 表示意愿will 表示现在的意愿,would表示过去的意愿。

如:

Go where you will

你愿到哪里就到哪里。

2. 表示征求意见或提出请求

主要用于第二人称的疑问句中,will和would均可用,would此时并不表过去,而表示委婉语气.

Would Sunday night suit you?

星期天晚上适合你吗?

would有时用于提出想法,通常与like, love, hate, prefer, be glad, be happy等连用,若用于第一人称有时也可将would换成should:

如:

I’d like [love] to have a look at it.

我想看看它。

I would prefer not to go out today.

我今天不想出去。

3. 表示习惯和倾向性

will表示现在的习惯,would表示过去的习惯。

如:

Oil will float on water.

油总是浮在水上。

This window won’t open.

这扇窗户经常打不开。

When he was a child, he would often go skiing.

他小时候经常去滑雪。

4.will 还可表示许诺、指示、叮嘱等,而would还可用于评论某一特定的行为等。

如:

You will do as I told you.

你得照我说的去做。

That’s just what he would say.

他就是爱那样讲话。

You would never do anything to hurt me.

你绝不会做伤害我的事的。

情态动词may(might)

might的特殊用法为表示责备,如

You might ask before borrow my book.

在借我书之前本可以说一声嘛!

用于固定习语

如:You may as well give him the letter.

你还是把信给他为好。

I might as well stay at home tonight.

我今晚还是待在家里吧。

情态动词shall和should

1. Shall用于第一人称,表示征求对方的意愿。

如:

What shall we do this evening?

我们今天晚上做什么呢?

2. Shall用于第一、第三人称疑问句中,表示说话人征求对方的意见或向对方请示.如:

Shall we begin our lesson?

我们可以开始学习了吗?

When shall he be able to leave the hospital?

他什么时候才可以出院呢?

3. Shall用于第二、第三人称,表示说话人给对方命令、警告、允诺或威胁。

如:

You shall fail if you dont work harder. (警告)

如果你不努力的话一定会落后的。

Tell him that he shall have the book tomorrow. (表允诺)

告诉他这本书明天给他。

You shall suffer for this. (表威胁)

你会为此事吃苦头的。

4.此外,Why(or 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。意为竟会。

如:

⑧ Why should you be so late today?

你几天怎么来得这么晚?

⑨ ― Where is Betty living? ― 贝蒂住在哪里?

― How should I know? ― 我怎么会知道呢?

⑩ I dont know why you should think that I did it.

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