七年级下册英语语法

发布 2020-04-02 14:54:28 阅读 3683

一.情态动词的用法。

1)can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 english.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。例如:

han mei can'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。

例如: can i h**e 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在口语中可以代替may,表示许可或可以。

can't在口语中代替mustn't时,表示禁止或不准。例如:

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

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。

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 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""yes,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:

-can you sing an english song for us?你可以为我们大家唱一首英语歌吗? -yes.

行。(注意在yes后面常省略i can) ②can i skate?我可以滑冰吗?

-yes, you can.可以。

-can she climb hills?她能爬山吗? -no, she can't.不,她不能。

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。

. 单项选择(15分)

)1. my sister likes playing the guitar, but she can’t play

a. nice b. good c. well

)2. —are you good __swimming? —yes, and i think i can help kids __ita.

with; in b. with; with c. at; with

3. he wants __the english club.

a. to join b. to be c. be in

)4. my father can’t play __basketball. he can play __pianoa.

the; the b. /the c. the; /

)5. —why do you want to __the english club? because mr li in the club is good __us.

a. h**e; with b. join; with c. join; at

)6. my brother doesn’t like playing basketball __watching tv.

a. and b. but c. or

)7. —can you speak chinese, tom? —yes, but only

a. lots of b. many c. a little

)8do you want to join? —the music club.

a. what club b. when c. what

)9. hi!can i help you? _i want to join the club.

a. no, thanks a lot b. great c. yes, please

)10he can do chinese kung fu well.

a. can he do chinese kung fu b. what can he do

c. does he want to join the chinese kung fu club

( )11. -what can you do? -i can

a. play the guitar b. play violinc. swimming d. join the club

)12. -can tom help kids __swimming? -yes, can. a. x b. with c. for d. to

)13. -do you want to join the chess club? -because i like chess very much.

a. who b. how c. why d. what

)14. what is the first day of the week?

a. monday b. friday c. saturday d. sunday

( )15. i can swim want to join the __club.

a music b chess c swimming d、musician

1.gina wants to jthe music club.

2.can you senglish?

3.i can play the guitar but can’t play the p

you hkids with swimming?

用所给单词适当形式填空。

41.—can you help kids with __dance)? yes,i can.

want___join)the baseball club.

you __sing)?

girl likes wants to be amusic).

you want to join theswim)club?

you good withkid),jim?

47he wants to join the___dance) club.

canplay) basketball.

can help __i) with __i) english.

50. i need __buy) a pen?

现在进行时。

1. 定义:表示现在或现阶段正在进行的动作。

常与now, these days等时间状语连用,句首有 look ! listen !等提示语。

i’m visiting my friends now. look! he is sitting there.

2.基本结构:be动词(am ,is ,are) +动词的现在分词构成(动词-ing)

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