can的用法

情态动词can的用法

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 Chinese.我会讲汉语。

Jim can ride but I can't.吉姆会骑单车,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。例如：

He can't be in the classroom. 他不可能在教室里。

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。例如：

Can I have a cup of tea, please?请问我可以喝一杯茶吗？

Y ou can go out.你可以出去了？

①can在口语中可以代替may,表示许可或可以。

②can't在口语中代替mustn't时,表示禁止或不准。例如：

Y ou can't play football in the street.不准在马路上踢足球。

③情态动词can的过去式could,用于现在时,可使语气更委婉、更客气。例如：

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

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。

Y ou 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：

Y ou cannot pass the ball like this.你不能像这样传球。

I can'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“Y es,主语+can.”作答;否定答语用“No,主语+can't.”作答。注意答语中作主语的人称代词,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 English song for us?你可以为我们大家唱一首英语歌吗？

-Y es.行。(注意在Y es后面常省略I can)

②-Can I skate?我可以滑冰吗？

-Y es, you can.可以。

③-Can she climb hills?她能爬山吗?

-No, she can't.不,她不能。

⑵特殊疑问句句型为:a. Who+can+动词原形+其它。该句型中who相当于主语。例如：

-Who can sing in English in your class?你们班上谁会用英语唱歌？

-Lily can.莉莉会。

b.特殊疑问词(作定语)+名词+can+主语+动词原形+其它。该句型中的特殊疑问词常用how many, how much等。例如：

-How many boats can you see in the river?你能看见河中有多少只船吗？

-Only one boat.仅有一只。

c.特殊疑问词+can+主语+动词原形+其它。该句型中的特殊疑问词常用what, where, when等,一般用肯定陈述句作答。例如：

-What can you see in the picture?你能在图画中看到什么？

-I can see some birds and two big trees in it.我能看到一些鸟儿和两棵大树。

1. Do you like_________(make) a puppet? Yes, I do.

2. Can you _________（sing）the song” we can sing and dance”?

3. Can they________(make) a model plane? No, they _______.

4. Can he ________(put) the apple under in the basket?

5. Do you like______ (swim)? No, I ________.

6. Do you like_______ (rabbit)? Yes, I ________.

7. What do you like? I like_________(panda).

8. Liu Ming and Wang Bing can_________(play) the guitar.

9. I like_________(listen) to music, but my parents_______.(not)

10. My father likes________(read) books every morning.

11. ______you like _______(horse)?No, I don’t.

12. I can_______(swim),but I can’t_______(skate).

13. Do you like_______(skate) , Wang Bing? No ,I like_______(ski).

14. Can you_______(make) a kite? Sorry, I ________.

15. I can’t_______(find) my pen. Where is it ?

16. I’d like______(play) basketball with you tomorrow?

17. I like tiger_______(mask),Helen.

18. I like ______(read) but my parents like_______(watch) TV.

19. What do you like? I like_______(horse) and______(monkey).

20. David likes______(tiger) and_______(lion).

21. She’d like some _______(flower).

22. He’d like _________(buy) thing for a party.

23. She’d like _______(go) to see her friend by taxi.

24. She can’t ________(play) computer games. 25. Sometimes we_______(ride) bikes on Sundays.

26. I can ______(skate) 27. I can’t ______ (dive)

28. I can ______ (shot put) 29. I can _______(basketball)

30. I can’t _______ (cartwheel) 31. He can _______( sit-ups)

32. She can _______ (swim) 33. We can _______(teach)

34. They can _______(tennis) 35. It can _______( climb a rope)

like, want 和would like练习

I．want 与would like互换

1. Do you want a cake ? ________you________a cake?

2. What would you like? _______ ________you________?

3. I want to take the box to the classroom. ________ ________ ________take the box to the classroom.

4. Do they want to go to school? ________ ________ ________ ________ ________to school?

II. 句型转换

1.I want to get the kite down from the tree.(改为否定句) _______________________________________.

2.I would like some orange. (对划线部分提问) _______________________________________?

III．改错

1．他喜欢苹果汁？Does he likes apple juice?

2.我不喜欢面条和土豆片。I don't like noodles and potato chips.

3.你想吃些面包吗？Would you like any bread?