Modal verbs

Modal verbs

情态动词

I Want To Be With You

I Want To Be With You There are things that be done That are not yet begun Things that I do When I want to be with you Although we`re far apart You`re with me in my heart No one else do I just want to be with you

I want to be with you you hear me? I need you near me I want to be with you I need you near me, my love

The two of us be one Mother of my son No one else do I just want to be with you

I want to be with you you hear me? I need you near me I want to be with you I need you near me, my love

I Want To Be With You There are things that be done That are not yet begun Things that I do When I want to be with you Although we`re far apart You`re with me in my heart No one else do I just want to be with you

I want to be with you you hear me? I need you near me I want to be with you I need you near me, my love

must

must

Can’t

will

The two of us be one Mother of my son No one else do I just want to be with you

I want to be with you you hear me? I need you near me I want to be with you I need you near me, my love

must

will

Can

MustWillCan’tCan

情态动词主要表达说话人的看法、态度等。从用法上来说，有这样几个特点：

一是情态动词自身都有一定的意义，但不能表示正在发生或已经发生的事情，只表示期待或估计某事发生。

二是情态动词除 ought 和 have 外，后面必须接不带 to 的不定式。

三是情态动词没有人称和数的变化 , 也没有非谓语形式。

Brainstorming

Discuss with your partner, and try to find out as many Modal Words as possible

只作情态动词的 : can/could, may/might, must

ought to

可情态可实义的 : need, dare/dared

可情态可助动词的 : shall/should,

will/would

相当于情态动词的 : have to, used to

Pair work:

Find the sentences in the reading passage that use modal verbs. Underline them and explain the meaning to your partner.

The functions of the modal words

Can & could

May & might

Will & would

Shall & should

Must & can’t

情态动词 用法 举例can/could 表示 “能力， 会，

”能体力、知识、技能方面的能力

Can you say it in English?

He could ride a bike at the age of six.

代替may/might 表示主观的许可允许和请求，“ ”可以 ;

could只用于疑问句，比 can更客气委婉

Can we go to the shop for sweets, please, Miss?

You can use my computer when necessary.

---Could I borrow your car?

----Yes, you can./ Of course.

_______

? ?

表示客观上的可能性。 The hall can hold 500 people.

这个礼堂能容纳 500人。Fish cannot live without wa

ter.

(用于否定、疑问或感叹句 )，

表惊异、猜测或怀疑

How can he speak to you like that?

Can he really be ill? 他真的病了吗？

No， this can’t be true.不，这不可能是真的。

??

Whose umbrella can it be ?

He can drive very well.

Can I use it?

Can it be true?

100000 RMB

It can rain later.

May/might

表同意、许可、请求；比 can较为正式；might 是may 的过去式，但也可用于现在时，语气比may 更委婉、客气

May I smoke here? Might I make a suggesti

on?我可以提个建议吗？

--May I come in?---Yes, please./Sure/ Ce

rtainly.(避免用may回答，以免显得太严厉或不客气。 )

--Please don't. /No, you mustn’t?

?

表示说话人的 “ ”猜测， 可能 ，“ ”也许

通常只用于肯定句和否定句。

He may come if he has time.Dr. Wang might attend the

meeting tomorrow.

放在句首祈使句，表示祝愿，语气较正式

May you succeed!May God bless you!

? ?

May I talk to you here?

Lunch may be ready.

May you a happy new year!

summary Can & could

1.体力、知识、技能方面的能力2. 主观的许可，允许和请求3.客观上的可能性4.惊异、猜测或怀疑 may & might

1.表同意、许可、请求2.表示说话人的猜测3.放在句首祈使句，表示祝愿，语气较正式

shall 用于请求，征求对方意见

（用于第一、三人称的疑问句中）

Shall I turn on the TV?我打开电视好吗？

Shall he go with us?它可以和我们一起去吗？

表示命令、警告、允诺、规定、威胁

用于（第二、三人称）

Noboday shall take books away from here.(规定 )

You shall be published.

? ?

should 表职责、义务、劝告，“ ”意为 应该

You should listen to your teacher.You should return it on time.

表示估计，猜测 It’s half pass eleven. She should be home.

3.表示委婉、谦虚地提出意见或建议

I should advise you to try it again.

?

4. 与疑问词连用，表示意外、惊讶、纳闷等

I don’t know why he should say so.我真不明白他为什么这么说。

?

? ?

Will/would

表示请求、邀请，常用语第二人称疑问句，

这时Will 与 would无时态上区别， would更婉转、客气

Will you marry me ? 你愿意嫁给我吗？

Would you tell me the way to the hospital?

表示 “意愿，决心。 愿”“ ”意 会

I won’t give in whatever you say.

? ?

表示反复发生的动作，习惯或倾向。

Fish will die out of water.She would walk for an hour

after supper.

表示推测、估计，意为大概、也许

Will he be at home now? 他现在会在家吗？

That would be in 1997.那大概是 1997年的事。

? ?

Must/can

must 表示肯定猜测，多用于肯定句）

He must be reading in the classroom.

He must have known the fact.

can 表示猜测（多用于否定、疑问句）

Can it be your father?It can’t be Jack..

?

?

must 表示必然性。 We must all die one day.

表示强制或者义务。（必须，应该），表示说话人主观看法， have to 强调客观需要。

You must get up early.

?

?

must 还可指令人不快的事，意为“（干吗）偏

” 要 ，“ ”硬要 ，“ ” 偏偏 ，“ … ”非 不可

Just as I was doing my homework, he must come bothering me.就在我正忙着做作业时，他偏偏要来打扰我。

--Who’s the girl standing over there?

--Well, if you must kown, her name is Mabel.

?

Must must not/musn’t 表示不许可，不应该，不准，或者禁止。

You mustn’t touch the oil paiting.

--Must I arrive at 7 o’clock?

--Yes, please / I’m afraid so,

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

?

情态动词表示推测的用法： 1. You must be Mr Smith----I was told to expect you

here. 2. He must have known what we wanted. 3. We may have read the same report. 4. He can’t have slept through all that noise. 5. There’s someone outside----who can it be? 6. What can they be doing? 7. These pills might help to cure your disease. 8. You could be right, I suppose.

情态动词表示推测的用法 肯定用 must—may---might

否定、疑问用 can—could （ must ， might, could 不表示时态，而表示

推测程度由强到弱）

对现在情况推测

肯定：must,may.might+be +(n/adj./介词词组 ) （状态） must,may.might+be doing （动作）

否定： Can, Could, +not+ be… Can, Could, +not+ be doing…

疑问： Can， Could+主语 + be…? Can， Could+主语 + be doing…?

对过去情况推测

肯定 : must.may,might+have been(n/adj./介词词组 ) must.may,might+have done…

否定 : Can, Could, +not+have been… Can, Could +not+have done …

疑问： Can, Could +主语 +have been …? Can, Could ++主语 +have done…?

情态动词 用法 举例can/could 表示 “能力， 会，

”能体力、知识、技能方面的能力

Can you say it in English?

He could ride a bike at the age of six.

代替may/might 表示主观的许可允许和请求，“ ”可以 ;

could只用于疑问句，比 can更客气委婉

Can we go to the shop for sweets, please, Miss?

You can use my computer when necessary.

---Could I borrow your car?

----Yes, you can./ Of course.

_______

? ?

表示客观上的可能性。 The hall can hold 500 people.

这个礼堂能容纳 500人。Fish cannot live without wa

ter.

(用于否定、疑问或感叹句 )，

表惊异、猜测或怀疑

How can he speak to you like that?

Can he really be ill? 他真的病了吗？

No， this can’t be true.不，这不可能是真的。

??

May/might

表同意、许可、请求；比 can较为正式；might 是may 的过去式，但也可用于现在时，语气比may 更委婉、客气

May I smoke here? Might I make a suggesti

on?我可以提个建议吗？

--May I come in?---Yes, please./Sure/ Ce

rtainly.(避免用may回答，以免显得太严厉或不客气。 )

--Please don't. /No, you mustn’t?

?

表示说话人的 “ ”猜测， 可能 ，“ ”也许

通常只用于肯定句和否定句。

He may come if he has time.Dr. Wang might attend the

meeting tomorrow.

放在句首祈使句，表示祝愿，语气较正式

May you succeed!May God bless you!

? ?

shall 用于请求，征求对方意见

（用于第一、三人称的疑问句中）

Shall I turn on the TV?我打开电视好吗？

Shall he go with us?它可以和我们一起去吗？

表示命令、警告、允诺、规定、威胁

用于（第二、三人称）

Noboday shall take books away from here.(规定 )

You shall be published.

? ?

should 表职责、义务、劝告，“ ”意为 应该

You should listen to your teacher.You should return it on time.

表示估计，猜测 It’s half pass eleven. She should be home.

表示委婉、谦虚地提出意见或建议

I should advise you to try it again.

?

Will/would

表示请求、邀请，常用语第二人称疑问句，

这时Will 与 would无时态上区别， would更婉转、客气

Will you marry me ? 你愿意嫁给我吗？

Would you tell me the way to the hospital?

表示 “意愿，决心。 愿”“ ”意 会

I won’t give in whatever you say.

? ?

表示反复发生的动作，习惯或倾向。

Fish will die out of water.She would walk for an hour

after supper.

表示推测、估计，意为大概、也许

Will he be at home now? 他现在会在家吗？

That would be in 1997.那大概是 1997年的事。

? ?

Must/can

must 表示肯定猜测，多用于肯定句）

He must be reading in the classroom.

He must have known the fact.

can 表示猜测（多用于否定、疑问句）

Can it be your father?It can’t be Jack..

?

?

must 表示必然性。 We must all die one day.

表示强制或者义务。（必须，应该），表示说话人主观看法， have to 强调客观需要。

You must get up early.

?

?

must 还可指令人不快的事，意为“（干吗）偏

” 要 ，“ ”硬要 ，“ ” 偏偏 ，“ … ”非 不可

Just as I was doing my homework, he must come bothering me.就在我正忙着做作业时，他偏偏要来打扰我。

--Who’s the girl standing over there?

--Well, if you must kown, her name is Mabel.

?

Must must not/musn’t 表示不许可，不应该，不准，或者禁止。

You mustn’t touch the oil paiting.

--Must I arrive at 7 o’clock?

--Yes, please / I’m afraid so,

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

?

情态动词表示推测的用法： 1. You must be Mr Smith----I was told to expect you

here. 2. He must have known what we wanted. 3. We may have read the same report. 4. He can’t have slept through all that noise. 5. There’s someone outside----who can it be? 6. What can they be doing? 7. These pills might help to cure your disease. 8. You could be right, I suppose.

情态动词表示推测的用法 肯定用 must—may---might

否定、疑问用 can—could （ must ， might, could 不表示时态，而表示

推测程度由强到弱）

对现在情况推测

肯定：must,may.might+be +(n/adj./介词词组 ) （状态） must,may.might+be doing （动作）

否定： Can, Could, +not+ be… Can, Could, +not+ be doing…

疑问： Can， Could+主语 + be…? Can， Could+主语 + be doing…?

对过去情况推测

肯定 : must.may,might+have been(n/adj./介词词组 ) must.may,might+have done…

否定 : must.may,might+not+have been… must.may,might+not+have done

疑问： Can, Could +主语 +have been …? Can, Could ++主语 +have done…?