文档介绍：1
非谓语动词之一:动词不定式
1。. 动词不定式的否认构造： 在不定式符号to前面加not 构成.
He decided not to go home. I told him not to play in the stnoticed tears come into his eyes.
We often hear her sing the song at home。
They made us go with them.
注: 但在变成被动时to 不能省略
She was heard to sing the song at home。 We are made to go。（精品文档请下载）
注意以下动词不能用动词不定时做宾补。 agree，suggest，hope， mind， demand
3
（精品文档请下载）
有些动词短语后也可用复合宾语,如call on， long for， wait for， rely on, depend on， care for 等。（精品文档请下载）
I rely on you to finish the work today.
We are waiting for him to come。
还有像 be said, be reported, be known； be sure, be likely; be certain 等构造后也可有复合构造。（精品文档请下载）
She is likely to be in the office.
He is reported to have written a new novel
4。 不定式作状语 表目的、原因、结果
The athletes practised hard to win the match。 （目的状语）（精品文档请下载）
To pass the exam, you should work hard。 （目的状语）
I am glad to hear the news。 原因状语
We are not such fools as to believe him .结果状语（精品文档请下载）
Would you be so kind as to step this way？ 。 结果状语（精品文档请下载）
The ice is thick enough to walk on. .结果状语（精品文档请下载）
I tried the door, only to find it locked inside。 结果状语（精品文档请下载）
注意；“be + adj。 +不定式”或 主语+find/think + adj +不定式构造中，不定式还可表示主语的情况，此时不定式常用主动表被动。常见的形容词有： easy， difficult， hard， comfortable… （精品文档请下载）
He is easy to get along with。
I found the book easy to read.
The chair is comfortable to sit on.
动词不定式的时态和语态
时态\语态
主动语态
被动语态
用处
4
一般式
to write
to be written
表示本动作和另一个动作同时发或发生在另一个动作之后
进展式
to be writing
to be being done
表本动作在进展。
完成式
to have written
to have been written
表本动作发生在另个动作前。
完成进展式
to have been writing
表本动作一直持续到如今还有可能到将来
进展时和完成时常用在以下句型
1. I am sorry（glad， pleased ） +…….。
2. be said/ reported/announced/ known/ thought/believe/considered+……（精品文档请下载）
3。 seem /appear/pretend/+……。.
I am sorry to have given you so much trouble。
They are said to be building houses