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cấu trúc câu bị động ( passive voice ) :

Bước 1: Xác định các thành phần tân ngữ (O) trong câu và đưa về đầu làm chủ ngữ(S)

Bước 2: Xác định thì (tense) của câu thông qua dạng thức của động từ chính (V)

Bước 3: Chuyển đổi động từ về dạng bị động “tobe + p.p” theo thì của câu gốc

Bước 4: Chuyển đổi chủ ngữ (O) trong câu chủ động thành tân ngữ, đưa về cuối câu và thêm “by” phía trước.

1. We waste too much fresh water everyday.

Too much fresh water is wasted everyday.

2. The students are doing an exercise on passive voice at the moment.

An exercise on passive voice is being done by the students at the moment.

3. No one used this computer yesterday.

This computer yesterday.

4. They will build a new hospital in this area.­

A new hospital will be built in this area.­

5. Phu Quang has composed a lot of songs about Ha Noi.­

A lot of songs about Ha Noi have been composed by Phu Quang.

6. We were painting the wall at this time yesterday.

The wall was being painted at this time yesterday.

7. My grandmother named my daughter after a kind of flower.

My daughter was named after a kind of flower by my grandmother.

8. They are decorating their rooms for Tet holiday.

Their rooms are being decorated for Tet holiday.

9. People speak English in many African countries.

English is spoken in many African countries.

10. Nobody informed me about the change of the plan. 

I wasn't informed about the change of the plan.

11. They are going to set up a new workshop in my school.

A new workshop is going to be set up in my school.

12. They gave Linh an Oxford dictionary last semester.

Linh was given an Oxford dictionary last semester.

13. Designers have added many beautiful patterns to the Ao dai.

Many beautiful patterns have been added to the Ao dai by designers.

14. People don't grow maize in this region.

Maize isn't grown in this region.

15. People often use Google or Yahoo website to search for information.

Google or Yahoo website is often used to search for information.

16. They'll send you a letter of invitation soon.

A letter of invitation will be sent to you soon.

17. Mr. Nam is repairing the faucet in the bathroom.

The faucet in the bathroom is being repaired by Mr. Nam.

18. My sister hasn't finished the project yet.

The project hasn't been finished by my sister yet.

19. The workers were repairing the bridge when it collapsed

The bridge was being repaired by the workers when it collapsed.

20. They are going to plant trees in the school garden this weekend.

Trees are going to be planted in the school garden this weekend.

Tham khảo 1-16

1.The waiter refilled my glass

- My glass was refilled by the waiter

2.My secretary will notify you next week

- You will be notified by my secretary next week

3.Is a student pilot flying that airplane

- Is that airplance being flown by a student pilot?

4.Alan 's knowledge about art doesn't impress me.

- I am not impressed by Alan's knowledge about art

5.People throw away billions of cans every year all over the world.

- Billions of cans are thrown every year all over the world

12.The librarian didn't allow Tom to take those books home

- Tom wasn't allowed to take those books home by the librarian

13.The teachers won't teach knowledge on recycling tomorrow.

- Knowledge on recycling won't be taught by the teachers tomorrow

14.Hoi An attracts a lot of tourists

- A lot of tourists are attracted by Hoi An

15.Did all students attend first-aid course last year

- Was the first-aid course attended last year by all students ?

16.Farmer can milk cows twice a day.

- Cows can be milked twice a day by farmer

 17.The nurse taught Hoa how to give fist-aid on the phone. 

 Hoa was taught how to give fist-aid on the phone by the nurse

18. When I came, he was repairing the computer 

 When i came, the computer was being repaired by him

19. We will grow a lot of trees in the parks. 

 A lot of trees will be grown in the parks

 20.They are painting the living room light blue. 

The living room is being painted light blue

refer

1.The waiter refilled my glass

- My glass was refilled by the waiter

2.My secretary will notify you next week

- You will be notified by my secretary next week

3.Is a student pilot flying that airplane

- Is that airplance being flown by a student pilot?

4.Alan 's knowledge about art doesn't impress me.

- I am not impressed by Alan's knowledge about art

5.People throw away billions of cans every year all over the world.

- Billions of cans are thrown every year all over the world

12.The librarian didn't allow Tom to take those books home

- Tom wasn't allowed to take those books home by the librarian

13.The teachers won't teach knowledge on recycling tomorrow.

- Knowledge on recycling won't be taught by the teachers tomorrow

14.Hoi An attracts a lot of tourists

- A lot of tourists are attracted by Hoi An

15.Did all students attend first-aid course last year

- Was the first-aid course attended last year by all students ?

16.Farmer can milk cows twice a day.

- Cows can be milked twice a day by farmer

17: The nurse taught Hoa how to give first-aid on the phone.

-> Hoa was taught how to give first-aid on thephone by the nurse.
18: When I came,he was repairing the computer.

-> When I came,the computer was being repaired by him.
19: We will grow a lof of trees in the parks.

-> A lot of trees will be grown in the park by us.
20: They are painting the living room light blue.

-> The living room are being painted light blue

cứuuuuuu

Someone is sented me this present when we used this room last night

this room was used last night
this present was sent to me 

mik chx hc câu bị động .-.

This room was used last night.

I was sent this present.

1. This room was used last night

2. This present was sent to me

 They have scored more than 10 goals in this season.

=>more than.....10 goals have been scored in this season......

ex3:change the following sentences into passive voice:

1. we know that the expedition reached the south pole in may.

It is known that the expedition reached the south pole in may.

2.people know that he is armed.

It is known that he is armed.

3.someone saw him pick up the gun.

He was seen to pick up the gun

4.we believe that he has special knowledge which may be useful to the police.

It is believed that he has special knowledge which may be useful to the police.

5.you needn't have done it.

it needn't have been done

6.he likes people call him "sir".

He likes being called "sir"

7.don't touch this switch .

This switch isn't touched

8.he doesn't like people laughing at him.

he doesn't like being laughed at

9.you don't need to wind this watch.

This watch doesb't need to be winded

10.they decided to divide the money between the windows of the lifeboat men.

They decided the money to be divided between the windows of the lifeboat men.

11. people believe that he was killed by terrorists.

It is believed that he was killed by terrorists.

12.they are to send letters to the leaders of charitable organization.

Letter are to be sent to the leaders of charitable organization.

13.we consider that she was the best singer that Australia has ever produced.

It is considered that she was the best singer that Australia has ever produced.

14.they urged the government to create more jobs .

The government was urged to create more jobs .

15.they suggested banning the sale of alcohol at football chess.

They suggested the sale of alcohol at football chess. be banned 

→ At 6 o'clock next Friday, more wind turbines will be building by people