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help被动语态to需要还原吗

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help我们都知道是帮助的意思,可是你知道help的被动语态to需要还原吗?下面是本站小编为你整理的help被动语态的相关资料,希望大家喜欢!

help被动语态to需要还原吗
  help的被动语态

help的被动语态to需要还原

例句:I help my mother do the housework

因为主动态里只是省略了TO的动词不定时。被动态要还原。

my mother is helped by me to do the housework.

类似的还有see sb sth. sb. is seen to do sth.

help

vt.& vi.帮助; 有助于, 有利于;

vt.治疗; 避免; 招待(客人); 给…盛(饭、菜)

n.帮助; 助手; 补救办法; 有用

vi.(在餐桌旁)招待,侍应,作仆人(或店员、服务员等);

int.[呼救语]救命!;

  被动语态的用法

1、不知道或没有必要指出谁是动作的执行者时。

The bridge was built last year.这座桥是去年建造的。

He was elected chairman.他被选为主席。

2、 当更加强调动作的承受者时。此时动作的执行者由by引导置于谓语动词之后,不需要时可以省略。

The room hasn't been cleaned yet.房间还没有打扫。

The tiger was killed by him.老虎被他杀死了。

3、当动作的执行者不是人时,多用被动语态。如:

The window was blown by wind.窗户被风吹开了。

The whole village has been washed away by the flood.整个村庄都被洪水冲走了。

4、表示客观的说明常用"It is + 过去分词."句型

It is said that Lucy has gone abroad.据说露茜已经出国了。

It is believed that he is a spy. (=He is believed to be a spy.)大家相信他是个间谍。

其它常见的"It is + 过去分词+ that"句型还有

It is reported that…据报道

It is said that…据说

It is believed that…大家相信

It is suggested that…有人建议

  被动语态的构成

被动语态由“助动词be+及物动词的过去分词”构成。人称、数和时态的变化是通过be的变化表现出来的。现以teach为例说明被动语态在各种时态中的构成。

一般现在时:am/is/are+taught

一般过去时:was/were+taught

一般将来时:will/shall(be going to) be+taught

现在进行时:am/is/are being+taught

过去进行时:was/were being+taught

现在完成时:have/has been+taught

过去完成时:had been +taught

过去将来时:would(was/were going to) be+taught