被动语态.ppt

被动语态复习
一、被动语态的定义:
语态是动词的一种形式,用以表示主语和谓语之间的关系。当主语是谓语动作的执行者,则为主动语态;当主语是谓语动作的承受者,则为被动语态。
被动语态由助动词be+过去分词构成,时态通过be表现出来。
二、各种时态的被动语态构成
1)一般现在时:You are required to do this.
2)一般过去时:The story was told by her.
3)一般将来时:The problem will be discussed tomorrow.
4)现在进行时:The question is being discussed in the meeting room.
5)过去进行时:The new road was being made.
6)现在完成时:The novel has been read.
7)情态动词:The rubbish can be put into the dustbin over there.
make shoes in that factory.
三、主动语态变被动语态
Shoes
are made
(by them)
in that factory.
一般现在时的被动语态构成:
S(主语)+am/is /are +过去分词
2. They bought puters last term.
puters were bought (by them) last term.
一般过去时:S+was/were +过去分词
Feng can take good care of Polly .
Polly can be taken good care of by Ling Feng .
情态动词:
S+ can/may/must/should + be+过去分词
will finish the work in ten days.
The work will be finished (by them)
in ten days.
一般将来时:
S+ will+be+过去分词
5.
Some workers are painting the rooms now.
The rooms are being painted by some workers now.
现在进行时:
S+ am/is/are + being +过去分词
have made twenty more keys.
Twenty more keys have been made by us.
现在完成时:
S+ have/has + been+过去分词