英语语法need的用法

2017-06-02

need在英语的用法是什么?它在语法里起什么作用?下面是小编给大家整理的英语语法need的用法,供大家参阅!

英语语法need的用法

1.need作实义动词,意为“需要”。如:

Do you need to stay at home?

你要呆在家里吗?

2.need作情态动词,一般用于对must的否定回答。如:

---Must he leave now? 他必须离开吗?

---No, he needn't. 不,他不必。

3.区分:

a.need作实义动词。

He needs to go.

He doesn't need to go.

Does he need to go?

Yes, he does./No, he doesn't.

b.need作情态动词,一般不用于肯定句。

He needn't go.

Need he go?

Yes, he need./No, he needn't.

英语语法like的用法

like 可以作动词,也可以作介词。

1、like 作动词,表示一般性的“爱好、喜欢”,有泛指的含义。如:

Do you like the color?你喜爱这种颜色吗?

like 后可接不定式(like to do sth),也可接动词的-ing分词(like doing sth),有时意思不尽相同。如:

She likes eating apples.她喜爱吃苹果。(习惯)

She likes to eat an apple.她喜爱吃一粒苹果。(平常不喜欢吃)

like 与 would 连用,后接不定式,表示愿望或客气的请求。如:

Would you like a cup of tea?您愿意喝杯茶吗?

“喜欢某人做某事”可以用结构“like sb to do sth/doing sth”。如:

They all like me to sing/singing English songs.他们都喜欢我唱英文歌。

2、like 作介词,可译成“像......”。如:

She is friendly to us like a mother.她对我们友好,就像母亲一样。

It looks like an orange.它看起来像个桔子。

3、区分以下句子:

A. What does he look like?

B. What is he like?

A句译为“他长相如何?”指一个人的外貌特征;而B句译为“他人怎么样?”指人的性格特点。

C. The boy like Peter is over there.

D. A boy like Peter can't do it.

A句指外貌相似,而D句指性格相似。

英语语法exercise的一些用法

1.作不及物动词,译为“运动,锻炼”。如:

David exercises every morning.

大卫每天早晨进行锻炼。

2.作及物动词,译为“训练”。如:

Swimming exercises the whole body.

游泳能使身体得到全面的锻炼。

3.作名词,译为“体育锻炼、运动、体操、练习题”等。如:

It's good to do eye exercises every day.

每天做眼保键操对眼睛有好处。

Please do more exercise from now on.

从今以后请多做运动吧。

I have lots of homework to do tonight.

今晚我有很多的作业要做。

4.注意:exercise指具体运动或体操时是可数名词,复数形式为exercises;泛指运动时是不可数名词。

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