被动语态

课件26张PPT。被动语态基本用法
当句子的主语是动作的执行者时，谓语的形式是主动语态。当句子的主语是动作的承受者时，谓语要用被动语态。被动语态由助动词be+过去分词构成，时态通过be表现出来。His brother washes bowls every day主谓宾(受动者)Bowls are washedbyhis brother every day.改为被动语态1.They make shoes in that factory.
主语+及物动词+宾语
Shoes are made (by them) in that factory.
一般现在时：
变为被动语态
S(主语）+am/is /are +过去分词
They play football on Sunday.
Lucy does the homework in the evening.
They often use computers in class.
We make these machines in Beijing.
Football is played by them on Sunday.The homework is done by Lucy in the evening.Computers are often used by them in class.These machines are made in Beijing.He looked after the little baby yesterday.主谓宾(受动者)The little baby was looked afterbyhim yesterday .2. They bought ten computers last term．
Ten computers were bought (by them) last term.
一般过去时：S+was/were +过去分词
They built the tall building last year.
He took good care of his little brother yesterday.
We cleaned our classroom just now.
They used this room for resting.
The tall building was built by them last year.His little brother was taken good care of by him yesterday.
Our classroom was cleaned by us just now.This room was used for resting by them.Tom will clean the room tomorrow.主谓宾(受动者)The roomwill be cleanedbyTom tomorrow.3.They 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We will have a sports meeting next week.
Children will take some photos in the
schoolyard tomorrow.
The headmaster will give a talk this afternoon.
A sports meeting will be had by us next week.Some photos will be taken by children in the school tomorrow.
A talk will be given by the headmaster this afternoon.4．Amy can take good care of Gina ．Gina can be taken good care of by Amy.
情态动词：
S+ can/may/must/should + be+过去分词1.He can take care of the baby.
2.Lucy may draw the pictures.
3.You must turn off the lights.
4.They should learn English well. The baby can be taken care of by him.The picture may be drawn by Lucy.The lights must be turned off by you.English should be learned well by them.
Exercises：
1.Many people speak English.
2.People used knives for cutting things.
3.We can use the box as a table.
4.We should clean the classroom every day.
5.She will repair the bike tomorrow.

下列时态的被动语态构成
1.Lucy is watering the trees.

2.We have finished our compositions.

看一看 想一想
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We have made twenty more keys．
Twenty more keys have been made by us.
现在完成时：
S+ have/has + been+过去分词各种时态的被动语态构成一般现在时：
一般过去时：
一般将来时：
情态动词：
过去进行时
现在完成时：
S+ am/is /are + doneS+can/may/must/should+be+done S+ will + be + done S+ was/were + being+ doneS+ have/has + been+ doneS+ was/were + done各种时态的被动语态构成中考挑战中考被动语态考题
1.The river smells terrible. People must __ dirty thing
into it.(南京市中考题）
A be stopped to throw
B be stopped from throwing
C stop to throw
D stop from throwing

2.This book __ often __from the library.(北京市中考题）
A aren’t take away B taken away
C isn’t taken away D be taken away
3.He ____ _____ (tell) to return his books to the library yesterday. (黄冈市中考题）
was told5. Another man-made satellite was sent up into space by them last week (济南市中考题）
—— —— —— another man-made satellite into space last week.变主动语态
7.People there planted many trees last year.
Trees _____ _____ by people there last year.
(青岛市中考题）
8. They grow vegetables on the farm.
The vegetables _______ ______on the farm（上海市中考题）
TThey sent upwere planted are grownOn 22 August 2004, The Scream, a famous painting by an artist called Edverd stole/was stolen from the museum in Norway.The painting pulled/was pulled off the wall by two men as visitors watched/were watched.The men escaped/were escaped by car. Later, the car found/was found but the picture was gone.Homework :
1.He cleans the classroom everyday.
2.They finished their homework.
3.I can mend his bike.
4.She will buy ten books tomorrow.
5.We shouldn’t allow them to go out with their friends.
6.The old man often makes us laugh.10.The teacher asked Tom to turn on the computer.
Tom _______ ________ to turn on the computer.
11.In this factory women do most of the work.
Most of the work _______ ________ by women in this factory