Discusion: the active voice 主动语态 & the passive voice 被动语态1. 什么时候用主动语态或被动语态？2. 主动语态和被动语态的动词结构是怎样的？

3. 主动语态句子变成被动语态句子哪三个部分要变？怎么变？

语态动词语态动词 时态 结构时态 结构

主动语态主动语态 被动语态被动语态一般现在时一般现在时

一般过去时一般过去时

什么时候用主动语态或被动语态？主语是动作的执行者就用主动语态主语是动作的承受者就用被动语态We study English at school.

English is studied by us at school.

我们用木头做家具。 那只老鼠被猫抓住了 相机是用来照相的。

Discusion 1: the active voice 主动语态 & the passive voice 被动语态

主动语态被动语态 被动语态

语态动词语态动词 时态 结构时态 结构

the active voicethe active voice the passive voicethe passive voice

一般现在时一般现在时

一般过去时一般过去时

am is + p.p. are was + p.p. were

v v+ s es

p.t.

Discusion 2: the active voice 主动语态 & the passive voice 被动语态

1. We call the doctor.

2. People don’t play football here.

3. The truck was cleaned yesterday.

Decide if these sentences are active or passive.

4. Mr Chen teaches us English.

5. The classroom was cleaned.

active

active

passive

active

passive

Disscusion 3: the active voice 主动语态 & the passive voice 被动语态主动语态句子变成被动语态句子哪三个部分要变？怎么变？

1. 把原句的宾语改为主语。2. 把原句的谓语动词改为被动语态结构 ( be + p.p.) 。3. 把原句的主语改为 by 的宾语（用宾格） , 可省略。e.g. She cleaned the room.

The room was cleaned ( by her).

The Pyramids in Egypt have been destroyed many times.

Statue of Liberty was set up in America in 1885.

Sydney is visited by many tourists every year.

It will be rebuilt in the future.

1. The Pyramids in Egypt have been destroyed many times.

2. Statue of Liberty was set up in America in 1885.

3. Sydney is visited by many tourists every year.

4.It will be rebuilt in the future.

The Passive Voice 被动语态

The Passive Voice 被动语态-—— when to use it

1.动作执行者不易指出或不需明说 .

2.动作执行者不言自明 .

3. 强调动作承受者 .

The Passive Voice – how to use it

The door is painted by the worker.

The door was painted by the worker.

The door will be painted.

The door has been painted.

The door is being painted.

The door was being painted.

be + V(p.p.)

The Present Perfect Passive Voice

have / has + been + V(p.p.)1. They have built the boat for weeks.

The boat has been built for weeks.

2. He has invited all his friends to his party.

All his friends have been invited to his party.

3. The thief has stolen all the money.

The money has been stolen by the thief.

have / has not + been + V(p.p.)

eg. The houses have not been painted.

His homework has not been finished yet.

Have / Has+ 主语 + been +V(p.p.)+…?

eg. Has his homework been finished?

Yes , it has. /No, it hasn’t.

1.They play basketball in their school.( 改为被动语态 )

Basketball______ _______in their school by them.is played

2. The naughty boy broke the window.

The window ______ _______ by the naughty boy.

3. People speak English all over the world.

English ______ _______ by people all over the world.

Exercise ：

was broken

is spoken

Exercise ：1.The key ______for locking the classroom door. A.uses B. is used C.is using D.use2.A new school _______over there two years ago. A. built B. was built C. build D. builds3.The lost children ______ on October 7,1998. A.was found B. is found C. found D. find4.A talk on Chinese history________in the school hall yesterday. A.is given B.give C.was given D. gave

B

B

A

C

a bird, catch,

by the boy

A bird has been caught by the boy.

a decision, make, at the meeting

A decision has been made at the meeting.

A new church,

set up, for a year

A new church has been set up for a year.

A dog, examine, three times, by the doctor

A dog has been examined three times by the doctor.

A spaceship, send, by China

A spaceship has been sent by China.

What has been done before you…?

see from space

build , for thousands of yearssome parts of it, destroy

some of it ,rebuildrepair, since the 1970s

visit ,by many people

It can be seen from space.

It has been built for thousands of years.

Some parts of it have been rebuilt.

It has been repaired since 1970s.

It is visited by many people.

Some parts of it have been destroyed.

A fruit has been eaten by the cat .The juice has been drunk by the cat.

The drink has been drunk up by a dog.

Its teeth have been hurt by the bone.The cat’s bed has been taken up by the dog.

The cat and dog have been caught in the bed.The painting has been taken away.

What’s wrong with you?

go

my head, hurt, for a week

My head has been hurt for a week.

my leg, bite

My leg has been bitten.

my foot, cut

My foot has been cut.

What has happened?

go

two singer stars , invite

Two singer stars have been invited to this city.

The World Trade Building, damage

The World Trade Building has been damaged.

a thief, catch, by the policemen

A thief has been caught by the policemen.

What’s the matter?

judge

go

Thank you

Good-Bye