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动词不定式的特别用法(1),从速记住这些特别用法吧!

2020-10-06

1.It’s for sb.和 It’s of sb.

1)for sb. 常用于表明事务的特征特色,表明客观方式的形容词,如easy, hard, difficult,interesting, impossible等:

It’s very hard for him to study two languages. 对他来说学两门外语是很难的。

2)of sb的句型一般用表明人物的性情,道德,表明片面爱情或情绪的形容词,如good, kind, nice, clever, foolish, right。

It’s very nice of you to help me. 你来帮助我,你真是太好了。

for 与of 的区分办法:用介词后边的代词作主语,用介词前边的形容词作表语,造个语句。假如道理上通畅用of,不通则用for。如:

You are nice.(通畅,所以使用of)。

He is hard.(人是困难的,不通,因而使用for。

留意:在被动语态中则to 不能省掉。

I saw him dance.

=He was seen to dance.

The boss made them work the whole night.

=They were made to work the whole night.

4) would rather,had better:

5) Why… / why not…:

6) help 可带to,也可不带to, help sb (to) do sth:

7) but和except:but前是动词do时,后边呈现的动词用不带to的动词不定式。

8) 由and, or和than衔接的两个不定式,第二个to 能够省去:

9) 通常在discover, imagine, suppose, think, understand等词后,能够省去to be: 

He is supposed (to be) nice. 他应该是个好人。

2) Paul doesn’t have to be made ___. He always works hard. 

A. learn  B. to learn  C. learned  D. learning

答案:B. make后接不带to 的动词不定式,当其用于被迫时,to 不行省掉。

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