爵士 |
级别：论坛游民
积分：28
经验：803
文章：20
注册：04-08-21 00:12
|
|
 |
 发表: 2004-09-02 23:18:29 人气:8899  
被动语态
被动语态
１、 何时运用被动语态；
（１） 强调动作的接受者；America was discovered by Coiumbus。
（２） 不知谁是动作的执行者；You are wanted on the phone。
（３） 作客观说明；It is said that the meeting has been put off（经典句型）
２、 主动变被动的基本方法；
（１） 主动语态中的宾语变为被动语态的主语。
（２） 谓语动词变为由“be+过去分词”的形式，配合时态作相应的变化。
（３） 主动语态主语置于介词by之后，如无必要，则省略。
（４） 不及物动词没有被动语态。
现在；do（dose）——am|is|are+done
We keep the piano in the living-room。
The piano is kert in the living-room。
过去；did——was|were+done
They built the bridge in 1980。
They bridge was built in 1980。
将来；shall shall
will do——will+be+done
He will read the book tomorrow。
The book will be read tomorrow
现在完成have have
has done——has+been+done。
We have delivered the newspape
The newspapers have been delivered（by us）。
过去完成had done——had been done
She had seen the film before she came here。
The film had been seen before she came here。
将来完成shall shall
will have done——will have+been+done
By the end of this term we shall have finished 80 texts。
By the end of this term 80 texts will have been finished。
现在进行am am
is doing——is+being+done
are are
They are drawing the picture。
The picture is being drawn by them，
过去进行was doing——was+being+done
were were
He was reviwing their lessons at this moment yesterday。
Their lessons were being reviewed at this moment yesterday。
情态动词may may
can can
must must
should do——should+be+done
ought to ought to
You must write an the subject。
An article must be written on the subject。
|
 |
|
|
