Learning about Languageppt配套的教学设计及说课稿

1 can and could Jim can speak English well. (ability)

Could you please show me the way to Beihai

Park? (request) 2 may and might

May we see the awards for the teams?( Permission; request) She might give you some new clothing.( possibility ) 3 will and would The Spring Festival is the most fun. ( Promise ;agreement )

Often he would dress up like a rich man. (Past habit ;Custom ) 4shall and should The harvest festival begins on Saturday. We shall be there with our friends .( Promise ;agreement)

You should arrive at the airport two hours before he goes.( advice ) 5 must and can’t

WangFeng wins an a every year.

He must be very strong.(

speculation )

You must be joking .That can’t be true.( guessing) 情态动词

can

否定式

cannot /can not

缩略形式

can’t

could

could not

couldn’t

may

may not

mayn’t

might

might not

mightn’t

情态动词

shall

should

will

否定式

shall not

should not

will not

缩略形式

shan’t

shouldn’t

won’t

would

need

dare

ought to

would not

need not

dare not

ought not to

wouldn’t

needn’t

daren’t

oughtn’t to

重点

一

易混淆的情态动词

二问答中的情态动词

三表推测的情态动词

一易混淆的情态动词

1can,could/be able to can, could表示潜在的能力，许可（

不如may正式），可能性等；用于一般现在时和一般过去时.be able to 表示已经实现的能力，可用于多种时态。

①I __________________swim since I was six years old.( could/have been able to ) ②She isn’t good at math , but she____________ pass the exam yesterday.( could/was able to

) 2 must/have to must 表示“一定”，“必须”，表示说话人的主观看法

，而have to 表示客观需要，是“不得不”的意思。

①It’s getting darker and darker, so you ______hurry.( must/have to) ②It’s getting darker and darker, so we _________hurry. ( must/have to ) 3will /shall 征求他人意见时，will用于第二人称，shall 用于第一和第三人称。

①Everybody is here. ______we

start the meeting?(

shall/ will) ②There are too many people inside,_______ you please speak

louder?( will /would/shall) 4would/ used to do 都有过去常常的意思，但used to do指过去常干，现在不干了，强调比较；而would不强调比较，带有感情色彩。

would/used to do •

①Bob used to work here, but he has moved to another place.

•

The old woman would sit by the window for hours, missing her children. 5 dare/need •

这两个动词既可以作情态动词，又可以作实意动词。特点：

dare/need后接动词原形时是情态动词；接动词不定式或名词时是实意动词。

•

1They dare not go there again,___ they?( dare/ do ) •

2You need a new computer,____ you?( needn’t

/don’t •

3The boy needs to see a doctor, ___he?( need’t /doesn’t) 二问答中的情态动词

（重点：否定回答中容易出错）

提问

may must could might would

Practice 回答

mustn’t

needn’t /don’t have to

can may will •

1-Could I use your bicycle?

-Yes, you___.

A .could B. may C .can

D. are

2 There was a terrible fire last night, but everybody __escape.

A. can B .was able to C. could D.might

•

3-May I go out and play basketball for a while?

-No,you ___. •

A.may not B.may n’t C.mustn’t D.needn’t •

4My mother is too busy now. I __lend her a hand. •

A. must B. may C. have to D. can •

5—Must we get here before eight tomorrow

morning? •

---No, you ______ •

A. mustn’t B. have to C. needn’t D. mayn’t •

6It’s too hot inside now. ____Tom open the window? •

A. Will B. Shall C. Does D .Must

•

•

•

•

7We are doing our homework .____you turn down the radio? A. Shall B. Will C. Must D. Should 8As a student, you ___hand in your homework on time. A .may B .should C .can D. might

三表示推测的情态动词（1）

\ 情态动词

must can 肯定

∨

否定

∨

疑问

∨

could may might

•

•

•

•

•

•

•

•

•

•

∨

∨

∨

∨

∨

∨

∨

情态动词加上have done推测事情已经完成；

情态动词加上be doing推测事情在进行。

简洁记为：情动＋have done推测事情已经干，情动＋be doing推测事情在进行。

1 It’s Sunday today, so I’m sure LiDong ___at school. A. can’t B .mustn’t be C .can’t be D .must 2 It’s raining cats and dogs now. Who__come here in such bad weather? A. may B. can C. might D. must 3My mother ___ come back home on time ,but I’m not sure. A. must B .might C. can’t D .can •

4Bob fell asleep in class. He ___be very sleepy. •

A. can B .may not C. can’t D .must