-Vì câu này là câu bị động dạng hiện tại đơn (is used)[Công thức: S+am/is/are+PII]

-"to heat" ở đây là để chỉ mục đích (to+V-infinitive)

-Tạm dịch nghĩa của câu: Pin năng lượng mặt trời được đặt trên mái nhà và năng lượng của mặt trời được dùng để đun nóng nước

-Phân biệt "be" used to và "be" used[bị động]

+Về cấu trúc: ❉"be" used to + V-ing

                       ❉Câu bị động[cấu trúc chung]: S+"be"+PII+(by O)+....

+Về nghĩa: ❉"be" used to V-ing: Quen với việc gì = get used to Ving = "be" accostumed to V-ing

                  ❉"be" used: được dùng

-Do vậy, từ cấu trúc trên, ta thấy:

+Nếu câu trên là thuộc cấu trúc "be" used to Ving thì không hợp nghĩa của câu, làm gì có chuyện năng lượng của mặt trời lại quen với việc làm nóng nước

⇒Không phải cấu trúc "be" used to Ving

+Nếu ở đây dùng bị động thì sẽ hợp lý hơn, "be" used mang nghĩa là được dùng, to V ngay sau được dùng để chỉ mục đích[để làm nóng nước(to heat water)], trong câu trên thì is used và to heat là 2 từ riêng biệt, không nối nhau theo 1 cấu trúc mà theo 2 cấu trúc khác nhau [bị động và chỉ mục đích]

Để chính xác ngữ pháp thì câu nên được viết là "Solar panels are placed on the roof of a house and the sun's energy is used to heatING water." Đó là vì "heat" trong câu này được sử dụng như một động từ, và khi động từ này được sử dụng trong thì hiện tại tiếp diễn (present continuous tense), nó phải được bổ sung với "ing" ở cuối để hình thành thành phần "heating".

Vì vậy, câu trên nên được sửa lại thành "Solar panels are placed on the roof of a house and the sun's energy is used to heatING water." để đảm bảo ngữ pháp chính xác. Cảm ơn bạn đã chỉ ra điều này!

* Bài tập :

__ Turn into the passive voice :

1) They will put solar panels on the roof .

--- > Solar panels will be put on the roof by them

2) People use the sun's energy to heat water .

--- > The sun's energy is used to heat water

3) They will build a dam for hydro electricity in this area .

4) He will finish the report before he leaves here .

--- > The report will be finished by him before he leaves here

5) We will hold the meeting before May Day .

--- > The meeting will be held by us before May Day

6) My classmate will tell a story about wildlife .

--- > A story about wildlife will be told by my classmate

7) I will invite him to my birthday party .

--- > He will be invited to my birthday party by me

8) Will buses bring the children home .

--- > Will the children be brought home by buses ?

9) She will paint this house next month .

--- > This house will be panited by her next month

1.Solar panels are placed the roof a house and sun's energy is used heat water.

2.The energy can be stored a number of days

3.On cloudy days , you can use solar energy,too

4.Viet Nam can be anadvanced technology in solar energy

5.Cars will use solar energy instead of gas by the year 2030.

k mik

1. They will install solar panels on the roof of our house next week.
=> solar panels will bw installed on the roof of our house next week.
2. The plumber will check the cracks on the water pipes in two days.
=> The cracks on the water pipes will be checked by the plumber in two days.
3. They won't show this film next friday.
=> This film will not be shown next friday.
4. People won't burn foossil fuels for energy in the future.
=> Fossil fuels will not be burned for energy in the future.
5. We will use biogas for cooking and heating next year.
=> Biogas will be use for cooking and heating next yeay.

ĐIỀN TỪ TRONG NGOẶC

1.my teacher wants me attentively(listen)...to listen..to the teacher

2.sad movies always make people(cry)..cry..

3.this job is(help).helped.....homeless people

4.it(rain)....is raining..hard.We can't do anything until it(stop).stops....

5.we are looking forward to(hear)..hearing..from you

6.why do you buy this paint?I(paint).will paint..my house next week

7. mai can't bear(laugh)..laughing..when she sees my face

>>>>>Ai không hiểu chỗ nào trong đáp án của mình thì hỏi mình nhé!

1.My teacher wants me attentively(listen)...to listen ..to the teacher

2.Sad movies always make people(cry)..cry..

3.This job is(help)...helping...homeless people

4.It(rain)...is raining....hard.We can't do anything until it(stop)...stops..

5.We are looking forward to(hear)...hearing.from you

6.Why do you buy this paint?I(paint).will paint..my house next week

7. Mai can't bear(laugh)..laughing..when she sees my face

Exercise: Rewrite these sentences in the passive voice

1. They use coal to heat their house. Coal is used to heat their house 

2. This well-known historical site will attract many people.  Many people will be attracted by this well-known historical site.

3. He will repair my bike. My bike will be repaired by him.

4. Visitors will leave umbrellas and raincoats in the cloakroom.  Umbrellas and raincoats will be left in the cloakroom by visitors.

5. They will ban advertisements on TV. Advertisements will be banned on TV.

6. Many countries around the world will use solar energy in the future. Solar energy will be used by many countries around the world in the future.

7. We will use wind and solar power to solve the problem of energy shortages. Wind and solar power will be used to solve the problem of energy shortages by us.

8. Nuclear and hydro power will generate a great deal of energy in the future. A great deal of energy will be generated by nuclear and hydro power in the future.

9. The government will launch a campaign for using renewable energy next month. A campaign will be launched for using renewable energy by the government next month.

10. They will increase the tax on petrol next year. The tax  on petrol will be increased next year.

1. They use coal to heat their house.

Coal is used to heat their house.

2. This well-known historical site will attract many people.

Many people will be attracted by this well-known historical site

3. He will repair my bike.

My bike will be repaired by him

4. Visitors will leave umbrellas and raincoats in the cloakroom.

 Umbrellas and raincoats will be left in the cloakroom by visitors

5. They will ban advertisements on TV.

Advertisements on TV will be banned

6. Many countries around the world will use solar energy in the future.

Solar energy will be used by many countries around the world in the future.

7. We will use wind and solar power to solve the problem of energy shortages.

Wind and solar power will be used to solve the problem of energy shortages.

8. Nuclear and hydro power will generate a great deal of energy in the future.

A great deal of energy will be generated by nuclear and hydro power in the future.

9. The government will launch a campaign for using renewable energy next month.

A campaign for using renewable energy will be launched by the government next month

10. They will increase the tax on petrol next year.

The tax on petrol will be increased next year

refer

1. Coal is used to heat their house.

2. Many people will be attracted by this well-known historical.

3. My bike will be repaired.

4. Umbrellas and raincoats will be left in the cloakroom by visitors.

5. Advertisements will be banned on TV.

6. Solar energy will be used by many countries around the world in the future.

7. Wind and solar power will be used to solve the problem of energy shortages.

8. A gread deal of energy will be generated by nuclear and hydro power in the future.

9. A campaign will be launched for using renewable enrgy by the government next month.

10. The tax will be increased on petrol next year.

1. The road in this area (repair)....will be repaired...... next year.

2. The students (have).....will be learning..... English at 7.30 tomorrow.

3. A new school (build).....will be built...... in this area next year.

5. I think by the year of 2080 a lot of people (live)......will live..... on Mars.

6. Although she was (frighten)......frightened........ of ghosts, she kept on watching the horror film.

8. Tomorrow, we (turn off)....will turn off.... all the light for Earth hour.

9. To save energy, we (watch)...will watch.... the match at John's house.

10. In the next 100 years, all our fossil fuels ( use up)....will be used up.....

1. The road in this area (repair)....will be repaired...... next year.

2. The students (have).....will have..... English at 7.30 tomorrow.

3. A new school (build).....will be built...... in this area next year.

5. I think by the year of 2080 a lot of people (live)......will live..... on Mars.

6. Although she was (frighten)......frightened........ of ghosts, she kept on watching the horror film.

8. Tomorrow, we (turn off)....will turn off.... all the light for Earth hour.

9. To save energy, we (watch)...will watch.... the match at John's house.

10. In the next 100 years, all our fossil fuels ( use up)....will be used up.....

1. Coal is used to heat their house.

2. Many people will be attracted by this well-known historical.

3. My bike will be repaired.

4. Umbrellas and raincoats will be left in the cloakroom by visitors.

5. Advertisements will be banned on TV.

6. Solar energy will be used by many countries around the world in the future.

7. Wind and solar power will be used to solve the problem of energy shortages.

8. A gread deal of energy will be generated by nuclear and hydro power in the future.

9. A campaign will be launched for using renewable enrgy by the government next month.

10. The tax will be increased on petrol next year.

1. COal will be used to heat their house.
2. Many people will be attracted by this well-known historical site.
3. My bike will be repaired.
4. Umbrellas and raincoats will be left in the cloakroom.
5. Advertisements on TV will be banned.
6. Solar energy will be used by many countries in the future.

7. Wind and solar power will be used to solve the problem of energy shortages.

8. A great deal of energy will be generated by nuclear and hydro power in the future.

9. A campaign will be launched for using renewable energy by the government next month.

10. The tax will be increased on petrol next year.

1. They use coal to heat their house.

=> Coal is used to heat their house.

2. This well-known historical site will attract many people.

=> Many people will be attracted by this well-known historical site.

3. He will repair my bike.

=> My bike will be repaired by him.

4. Visitors will leave umbrellas and raincoats in the cloakroom.

=> Umbrellas and raincoats will be left in the cloakroom by visitors.

5. They will ban advertisements on TV.

=> Advertisements on TV will be banned.

6. Many countries around the world will use solar energy in the future.

=> Solar energy will be used by many countries around the world in the future.

7. We will use wind and solar power to solve the problem of energy shortages.

=> Wind and solar power will be used to solve the problem of energy shortages.

8. Nuclear and hydro power will generate a great deal of energy in the future.

=> A great deal of energy will be generated by nuclear and hydro power in the future.

9. The government will launch a campaign for using renewable energy next month.

=> A campaign for using renewable energy will be launched by the government next month.

10. They will increase the tax on petrol next year.

=> The tax on petrol will be increased next year.