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I. Choose the best answer

1. Emissions from vehicles have negative ………………..on the environment.

A. tasks               B. effects             C. benefits           D. problems

2. Using non-renewable energy sources like coal, oil  …………………a lot of carbon dioxide.

A. makes             B. does                C. uses                 D. produces

3. They …………………..solar panels on the roof of the house to catch the energy from the sun.

A. have                B. get                   C. install              D. put

4. Wind is one type of …………………source of energy.

A. renewable       B. expensive       C. dangerous       D. exhaustible

5. What things do they think might ………………..a big carbon footprint?

A. take                 B. put                  C. carry               D. create

6. I think that using biogas is abundant and ………………

A. limited            B. polluting        C. cheap              D. exhaustible

7. Solar energy is plentiful and it can be ………………….easily.

A. recycled                   B. replaced          C. reduced           D. reused

8. We install solar panels on our roof for the heating and …………..water.

A. hot                  B. cold                 C. dirty                D. clean

9. His brother is ……………cracks in the water pipes.

A. having            B. checking         C. taking             D. producing

10. The teacher is ………………..a talk about how to save energy.

A. doing              B. taking             C. giving             D. making

1

1B

2D

3C

4A

5D

6C

7C

8A

9B

10C

I. Choose the best answer1. Emissions from vehicles have negative ………………..on the environment.A. tasks               B. effects             C. benefits           D. problems2. Using non-renewable energy sources like coal, oil  …………………a lot of carbon dioxide.A. makes             B. does                C. uses                 D. produces3. They …………………..solar panels on the roof of the house to catch the energy from the sun.A. have                B. get                   C. install              D....
Đọc tiếp

I. Choose the best answer

1. Emissions from vehicles have negative ………………..on the environment.

A. tasks               B. effects             C. benefits           D. problems

2. Using non-renewable energy sources like coal, oil  …………………a lot of carbon dioxide.

A. makes             B. does                C. uses                 D. produces

3. They …………………..solar panels on the roof of the house to catch the energy from the sun.

A. have                B. get                   C. install              D. put

4. Wind is one type of …………………source of energy.

A. renewable       B. expensive       C. dangerous       D. exhaustible

5. What things do they think might ………………..a big carbon footprint?

A. take                 B. put                  C. carry               D. create

6. I think that using biogas is abundant and ………………

A. limited            B. polluting        C. cheap              D. exhaustible

7. Solar energy is plentiful and it can be ………………….easily.

A. recycled                   B. replaced          C. reduced           D. reused

8. We install solar panels on our roof for the heating and …………..water.

A. hot                  B. cold                 C. dirty                D. clean

9. His brother is ……………cracks in the water pipes.

A. having            B. checking         C. taking             D. producing

10. The teacher is ………………..a talk about how to save energy.

A. doing              B. taking             C. giving             D. making

 

II. Write the correct form of the word given

1. Coal will be …………………by another renewable source of energy in the future. REPLACE

2. Natural gas is …………….and it is harmful to the environment. LIMIT

3. I like solar energy because it is ………………..PLENTY

4. Using public transport can reduce ……………….….POLLUTE 

5. These types of energy do not cause pollution or waste ………………….resources. NATURE

6. We hope that by using solar energy, the problem of energy ……………….will be solved. SHORT

7. This new plant is being built to provide …………………for the population of the local area. ELECTRIC

8. Remember to turn off the lights when……………….to bed, boy! GO

9. She wears a sweater to keep her body………………..in the early winter. WARMTH

10. What are the advantages and ………………….of using public transport?

ADVANTAGE

1
28 tháng 2 2022

giúp tui với

 

Ex 4: Choose the best answer1. Emissions from vehicles have negative ………………..on the environment.A. tasks                      B. effects                   C. benefits                 D. problems2. Using non-renewable energy sources like coal, oil  …………………a lot of carbon dioxide.A. makes                    B. does                       C. uses                        D. produces3. They …………………..solar panels on the roof of the house to catch the energy from the sun.A. have                       B....
Đọc tiếp

Ex 4: Choose the best answer

1. Emissions from vehicles have negative ………………..on the environment.

A. tasks                      B. effects                   C. benefits                 D. problems

2. Using non-renewable energy sources like coal, oil  …………………a lot of carbon dioxide.

A. makes                    B. does                       C. uses                        D. produces

3. They …………………..solar panels on the roof of the house to catch the energy from the sun.

A. have                       B. get                          C. install                    D. put

4. Wind is one type of …………………source of energy.

A. renewable             B. expensive             C. dangerous             D. exhaustible

5. What things do they think might ………………..a big carbon footprint?

A. take                        B. put                          C. carry                      D. create

6. I think that using biogas is abundant and ………………

A. limited                   B. polluting               C. cheap                     D. exhaustible

7. Solar energy is plentiful and it can be ………………….easily.

A. recycled                B. replaced                C. reduced                 D. reused

8. We install solar panels on our roof for the heating and …………..water.

A. hot                         B. cold                        C. dirty                       D. clean

9. His brother is ……………cracks in the water pipes.

A. having                   B. checking               C. taking                    D. producing

10. The teacher is ………………..a talk about how to save energy.

A. doing                     B. taking                    C. giving                    D. making

1
28 tháng 3 2022

1. Emissions from vehicles have negative ………………..on the environment.

A. tasks                      B. effects                   C. benefits                 D. problems

2. Using non-renewable energy sources like coal, oil  …………………a lot of carbon dioxide.

A. makes                    B. does                       C. uses                        D. produces

3. They …………………..solar panels on the roof of the house to catch the energy from the sun.

A. have                       B. get                          C. install                    D. put

4. Wind is one type of …………………source of energy.

A. renewable             B. expensive             C. dangerous             D. exhaustible

5. What things do they think might ………………..a big carbon footprint?

A. take                        B. put                          C. carry                      D. create

6. I think that using biogas is abundant and ………………

A. limited                   B. polluting               C. cheap                     D. exhaustible

7. Solar energy is plentiful and it can be ………………….easily.

A. recycled                B. replaced                C. reduced                 D. reused

8. We install solar panels on our roof for the heating and …………..water.

A. hot                         B. cold                        C. dirty                       D. clean

9. His brother is ……………cracks in the water pipes.

A. having                   B. checking               C. taking                    D. producing

10. The teacher is ………………..a talk about how to save energy.

A. doing                     B. taking                    C. giving                    D. making

Choose the correct answers. 16. What should we do to________ electricity? a. cut b. take c. save d. waste 17. Someone's carbon_______ is a measurement of the amount of carbon dioxide that their activities produce. a. effect b. amount c. footprint d. energy 18. _____ source of energy is the source that can't be replaced after use. a. Renewable b. Natural c. Effective d. Non-renewable 19. We are looking for cheap, clean and _____ sources of energy. a. effective b. efficient c. serious...
Đọc tiếp

Choose the correct answers.

16. What should we do to________ electricity?

a. cut b. take c. save d. waste

17. Someone's carbon_______ is a measurement of the amount of carbon dioxide that their activities produce.

a. effect b. amount c. footprint d. energy

18. _____ source of energy is the source that can't be replaced after use.

a. Renewable b. Natural c. Effective d. Non-renewable

19. We are looking for cheap, clean and _____ sources of energy.

a. effective b. efficient c. serious dangerous

20. We should put______ on our roof for the haeting and hot water.

a. solar energy b. equipment c. cracks d. solar panels

21. We should use______ light bulbs in our homes.

a. low energy b. little energy c. a bit energy d. efficient

22. In my opinion, nuclear power is not only expensive but also_____ to our environment.

a. danger b. dangerous c. risk d. disaster

23. Several governments try to _____ the use of fossil fuels.

a. reduce b. increase c. waste d. save

24. It is a good idea to use_____ when travelling long distances.

a. cars b. taxis c. private cars d. public transport

25. Wave energy is a sorce of______ energy.

a. environment friendly b. environmentallt friendly c. environmental friendly d. environmentally friendliness

26. Remember to_____ the lights before going to bed.

a. turn b. turn off c. turn on d. stop

27. A hydropower station_____ in the North of the country next year.

a. was built b. were built c. will be built d. has been built

28. Biogas is_____ and cheap for cooking and heating.

a. plenty b. abundant c. serious d. expensive

29. ''Why is it called a _____ souce?'' - ''Because it can be replaced easily and quickly.''

a. effective b. specific c. renewable d. non-renewable

30. At this time next week, we_____ a wind turbin in our garden.

a. install b. installed c. will installed d. will be installing

31. Alternative sources of energy______ developed in the near future.

a. is b. was c. has been d. will be

32. Hydro power is_____ because dams cannot be built in certtain areas.

a. limited b. unlimited c. abundant d. enough

33. Fossil fuels are very common in our society but they_____ the environment.

a. renew b. provide c. waste d. pollute

34. By the middle of the 21stcentury, people in developing countries_____ more renewable energy.

a. uses b. will be using c. used d. have used

35. The wind, the sun, and the wave are some types of______ sources of energy.

a. changeable b. alternative c. cheap d. costly

1

16. What should we do to________ electricity?

a. cut b. take c. save d. waste

17. Someone's carbon_______ is a measurement of the amount of carbon dioxide that their activities produce.

a. effect b. amount c. footprint d. energy

18. _____ source of energy is the source that can't be replaced after use.

a. Renewable b. Natural c. Effective d. Non-renewable

19. We are looking for cheap, clean and _____ sources of energy.

a. effective b. efficient c. serious dangerous

20. We should put______ on our roof for the haeting and hot water.

a. solar energy b. equipment c. cracks d. solar panels

21. We should use______ light bulbs in our homes.

a. low energy b. little energy c. a bit energy d. efficient

22. In my opinion, nuclear power is not only expensive but also_____ to our environment.

a. danger b. dangerous c. risk d. disaster

23. Several governments try to _____ the use of fossil fuels.

a. reduce b. increase c. waste d. save

24. It is a good idea to use_____ when travelling long distances.

a. cars b. taxis c. private cars d. public transport

25. Wave energy is a sorce of______ energy.

a. environment friendly b. environmentallt friendly c. environmental friendly d. environmentally friendliness

26. Remember to_____ the lights before going to bed.

a. turn b. turn off c. turn on d. stop

27. A hydropower station_____ in the North of the country next year.

a. was built b. were built c. will be built d. has been built

28. Biogas is_____ and cheap for cooking and heating.

a. plenty b. abundant c. serious d. expensive

29. ''Why is it called a _____ souce?'' - ''Because it can be replaced easily and quickly.''

a. effective b. specific c. renewable d. non-renewable

30. At this time next week, we_____ a wind turbin in our garden.

a. install b. installed c. will installed d. will be installing

31. Alternative sources of energy______ developed in the near future.

a. is b. was c. has been d. will be

32. Hydro power is_____ because dams cannot be built in certtain areas.

a. limited b. unlimited c. abundant d. enough

33. Fossil fuels are very common in our society but they_____ the environment.

a. renew b. provide c. waste d. pollute

34. By the middle of the 21stcentury, people in developing countries_____ more renewable energy.

a. uses b. will be using c. used d. have used

35. The wind, the sun, and the wave are some types of______ sources of energy.

a. changeable b. alternative c. cheap d. costly

18 tháng 3 2018

Rearrange the sentences to make a suitable conversation by writing the corect number (from 51 to 55) in the box.

53 A. Because our major sources of energy are running out while the solar energy is abundant and unlimited.

54 B. I know it is also clean and safe to the environment. But does it cost a lot of money to install the solar panels on the roof.

55 C. I don't think so. The solar panels are becoming cheaper and easy to install.

51 D. I think taht solar energy can be an alternative source of energy in the near future.

52 E. Why do you think so?

1. When you save energy, you not only save money, you also reduce the demand for ................. such as coal, oil, and natural gas and that is a great way to play a part in saving the planet. A. carbon footprint B. electricity C. fossil fuels D. biogas 2. In India, the demand for ................. has always been more than the supply. A. shortage B. sources C. slogan D. electricity 3. ................. energy is produced by collecting sunlight and converting it into electricity. ...
Đọc tiếp

1. When you save energy, you not only save money, you also reduce the demand for ................. such as coal, oil, and natural gas and that is a great way to play a part in saving the planet.

A. carbon footprint B. electricity

C. fossil fuels D. biogas

2. In India, the demand for ................. has always been more than the supply.

A. shortage B. sources C. slogan D. electricity

3. ................. energy is produced by collecting sunlight and converting it into electricity.

A. Hydro B. Nuclear C. Solar D. Wind

4. There are many available ................. power sources in Vietnam including sun, wind, water, etc.

A. nuclear B. hydro C. renewable D. solar

5. Laos and Cambodia have big plans for building up to 11 .......... on the lower Mekong.

A. dams B. slogans C. energy D. coals

6. ................. can be an excellent source of free, renewable energy for poor farmers.

A. Turbine B. Biogas C. Solar panel D. Bulb

7. The government has warned that Britain will face power ................. in the coming winters.

A. coal B. shortages C. slogans D. energy

8. Wind power is one of the earliest ................. sources of energy used by humankind.

A. alternative B. polluted C. harmful D. exhausted

9. Nobody can predict exactly when supplies of fossil fuels will be ................. However, we all know they quickly reduce in quantity.

A. installed B. polluted C. harmful D. exhausted

10. Biogas can be used to ................. natural gas in cooking, heating, or electrical generation.

A. use up B. replace C. pollute D. install

11. Solar energy can be used for ................. electricity, and for hot water heating.

A. investing B. polluting C. generating D. installing

12. The non-renewable sources of energy that we are using are ................. and are bound to expire one day.

A. limited B. plentiful C. abundant D. alternative

13. Shall I say hello to Sharon? I ................. to her today.

A. write B. be writing C. will be writing

14. Can I help you? I ................. you that blouse.

A. will be showing B. will show C. won’t show

15. Good Lord! The engine has stopped. - No problem. Bill ................. a look at it.

A. is having B. will have C. will be having

16. Why don’t you have dinner with us? I ................. anyway.

A. will be cooking B. am cooking C. cook

17. This time next week we ................. round the Aegean Sea.

A. sail B. will be sailing C. will sail

18. If you take three cassettes, you ................. one cassette free.

A. are going to get B. are getting C. will get

19. I ................. my work before they arrive.

A. will be finishing B. finish C. will finish

20. By the end of this century everyone ................. English.

A. will be speaking B. is going to speak C. speaks

1
16 tháng 5 2020

1. When you save energy, you not only save money, you also reduce the demand for ................. such as coal, oil, and natural gas and that is a great way to play a part in saving the planet.

A. carbon footprint B. electricity

C. fossil fuels D. biogas

2. In India, the demand for ................. has always been more than the supply.

A. shortage B. sources C. slogan D. electricity

3. ................. energy is produced by collecting sunlight and converting it into electricity.

A. Hydro B. Nuclear C. Solar D. Wind

4. There are many available ................. power sources in Vietnam including sun, wind, water, etc.

A. nuclear B. hydro C. renewable D. solar

5. Laos and Cambodia have big plans for building up to 11 .......... on the lower Mekong.

A. dams B. slogans C. energy D. coals

6. ................. can be an excellent source of free, renewable energy for poor farmers.

A. Turbine B. Biogas C. Solar panel D. Bulb

7. The government has warned that Britain will face power ................. in the coming winters.

A. coal B. shortages C. slogans D. energy

8. Wind power is one of the earliest ................. sources of energy used by humankind.

A. alternative B. polluted C. harmful D. exhausted

9. Nobody can predict exactly when supplies of fossil fuels will be ................. However, we all know they quickly reduce in quantity.

A. installed B. polluted C. harmful D. exhausted

10. Biogas can be used to ................. natural gas in cooking, heating, or electrical generation.

A. use up B. replace C. pollute D. install

11. Solar energy can be used for ................. electricity, and for hot water heating.

A. investing B. polluting C. generating D. installing

12. The non-renewable sources of energy that we are using are ................. and are bound to expire one day.

A. limited B. plentiful C. abundant D. alternative

13. Shall I say hello to Sharon? I ................. to her today.

A. write B. be writing C. will be writing

14. Can I help you? I ................. you that blouse.

A. will be showing B. will show C. won’t show

15. Good Lord! The engine has stopped. - No problem. Bill ................. a look at it.

A. is having B. will have C. will be having

16. Why don’t you have dinner with us? I ................. anyway.

A. will be cooking B. am cooking C. cook

17. This time next week we ................. round the Aegean Sea.

A. sail B. will be sailing C. will sail

18. If you take three cassettes, you ................. one cassette free.

A. are going to get B. are getting C. will get

19. I ................. my work before they arrive.

A. will be finishing B. finish C. will finish

20. By the end of this century everyone ................. English.

A. will be speaking B. is going to speak C. speaks

16 tháng 5 2020

Bạn có chắc chắn ko vậy

Read the text then answer the questions. (Đọc và trả lời câu hỏi) Dear guests, I’d like to talk to you today about renewable and non-renewable energy. Fossil fuels are non-renewable energy sources. They include oil, coal, and natural gas. They can be used to create energy, generate electricity, or drive big machinery. Unfortunately, they are harmful to the environment. Viet Nam still relies mostly on non-renewable energy sources, however, hydro power is increasingly used here...
Đọc tiếp

Read the text then answer the questions. (Đọc và trả lời câu hỏi)

Dear guests, I’d like to talk to you today about renewable and non-renewable energy. Fossil fuels are non-renewable energy sources. They include oil, coal, and natural gas. They can be used to create energy, generate electricity, or drive big machinery. Unfortunately, they are harmful to the environment. Viet Nam still relies mostly on non-renewable energy sources, however, hydro power is increasingly used here too.

Hydro and nuclear power can generate a great deal of energy. They are renewable and plentiful. However, hydro power is limited because dams cannot be built in certain areas. Nuclear power can provide enough electricity for the world’s needs, but it is dangerous. The sun and the wind are other alternative sources of energy. The wind turns turbines to

make electricity. Solar power can be converted into electricity. It can be used to heat or cool our houses. Although there are some disadvantages, these alternative energy sources can offer abundant amounts of clean, safe electricity. They will be valued more and more in the future in Viet Nam.

1.How many types of energy sources are mentioned in the text? What are they?

2.What are the disadvantages of hydro and nuclear power?

3.Why do you think the wind and the sun are called alternative sources of energy?

4.What types of energy does Viet Nam use most?

5.What does the professor think Viet Nam will use more in the future?

1
11 tháng 10 2020

1.How many types of energy sources are mentioned in the text? What are they?

Two. They are renewable and non-renewable.

2.What are the disadvantages of hydro and nuclear power?

Hydro power is limited because dams cannot be built in certain areas. Nuclear power is dangerous.

3.Why do you think the wind and the sun are called alternative sources of energy?

Because they are natural sources of power and we use them instead of non-renewable sources to get the electricity we need.

4.What types of energy does Viet Nam use most?

We use non-renewable sources of energy the most but we are increasingly using hydro power.

5.What does the professor think Viet Nam will use more in the future?

He thinks Viet Nam will use the wind and the sun as alternative sources of energy in the future

1.By the middle of the 21st century, people in developing countries ___ more renewable energy. A. uses B. will be using C. used D. have used 2. The wind, the sun and the wave are some types of ___ sources of energy. A. changable B. alternative C. cheap D. costly 3. Alternative soures of energy ___ developed in the near future. A. is B. was C. has been D. will be 4. Fossil fuels are very common in our society but they ___ the environment. A. renew B. provide C. waste D. pollute 5. "Why is it...
Đọc tiếp

1.By the middle of the 21st century, people in developing countries ___ more renewable energy.
A. uses B. will be using C. used D. have used
2. The wind, the sun and the wave are some types of ___ sources of energy.
A. changable
B. alternative
C. cheap
D. costly
3. Alternative soures of energy ___ developed in the near future.
A. is
B. was
C. has been
D. will be
4. Fossil fuels are very common in our society but they ___ the environment.
A. renew
B. provide
C. waste
D. pollute
5. "Why is it called a ___ source?" - "because it can be replace easily and quickly"
A. effective
B. specific
C. renewable
D. non-renewable
6. Hydro power is ___ because dams connot be built in certain areas.
A. limited
B. unlimited
C. abundant
D. enough
7. At this time next week, we ___ a wind turbine in our farden.
A install
B. installed
C. will installed
D, will be installed
8. Biogas is ___ and cheap for cooking and heating
A. plenty
B. abundant
C, serious
D. expensive
9. A hydropower station ___ in the North of the country next year.
A. was built
B. were built
C. will be built
D, has been built
10. We should put ___ on our roof for the heating and hot water.
A. solar energy
B. equipment
C. cracks
D. solar panels
11. Remember to ___ the lights before going to bed.
A turn
B, turn off
C, turn on
D, stop

12. it is a good idea to use ___ when travelling long distances.

A cars

B taxis

C. private cars

D. public trans prot

13. What should we do to ___ electricity?

A. cut

b. take

c,save

d, waste

14. we shout use ___ light bulbs in our homes

a, low energy

B. little energy

c, a nit energy

d, efficient

1
24 tháng 4 2017

1.By the middle of the 21st century, people in developing countries ___ more renewable energy.
A. uses B. will be using C. used D. have used
2. The wind, the sun and the wave are some types of ___ sources of energy.
A. changable
B. alternative
C. cheap
D. costly
3. Alternative soures of energy ___ developed in the near future.
A. is
B. was
C. has been
D. will be
4. Fossil fuels are very common in our society but they ___ the environment.
A. renew
B. provide
C. waste
D. pollute
5. "Why is it called a ___ source?" - "because it can be replace easily and quickly"
A. effective
B. specific
C. renewable
D. non-renewable
6. Hydro power is ___ because dams connot be built in certain areas.
A. limited
B. unlimited
C. abundant
D. enough
7. At this time next week, we ___ a wind turbine in our farden.
A install
B. installed
C. will installed
D, will be installed
8. Biogas is ___ and cheap for cooking and heating
A. plenty
B. abundant
C, serious
D. expensive
9. A hydropower station ___ in the North of the country next year.
A. was built
B. were built
C. will be built
D, has been built
10. We should put ___ on our roof for the heating and hot water.
A. solar energy
B. equipment
C. cracks
D. solar panels
11. Remember to ___ the lights before going to bed.
A turn
B, turn off
C, turn on
D, stop

12. it is a good idea to use ___ when travelling long distances.

A cars

B taxis

C. private cars

D. public trans prot

13. What should we do to ___ electricity?

A. cut

b. take

c,save

d, waste

14. we shout use ___ light bulbs in our homes

a, low energy

B. little energy

c, a nit energy

d, efficient

I. Choose the best answer (A, B, C or D). 1.By the middle of the 21st century, people in developing countries____ more renewable energy. A. uses B. will be using C. used D. have used  2. The wind, the sun, and the wave are some types of ____________ sourcesof energy.  A. changeable B. alternative C. cheap D. costly  3. Alternative sources of energy ____________ developed in the near future.  A. is B. was C. has been D. will be  4. Fossil...
Đọc tiếp

I. Choose the best answer (A, B, C or D).
1.By the middle of the 21st century, people in developing countries____ more renewable energy.
A.
uses
B.
will be using
C.
used
D.
have used

2.
The wind, the sun, and the wave are some types of ____________ sourcesof energy.

A.
changeable
B.
alternative
C.
cheap
D.
costly

3.
Alternative sources of energy ____________ developed in the near future.

A.
is
B.
was
C.
has been
D.
will be

4.
Fossil fuels are very common in our society but they ____________ theenvironment.

A.
renew
B.
provide
C.
waste
D.
pollute

5.
“Why is it called a _____________ source?” – “Because it can be replacedeasily and quickly.”

A.
effective
B.
specific
C.
renewable
D.
non-renewable

6. Hydro power is _____________ because dams cannot be built in certainareas.
A.
limited
B.
unlimited
C.
abundant
D.
enough

7.
At this time next week, we ______________ a wind turbine in our garden.

A.
install
B.
installed
C.
will installed
D.
will be installing

8.
Biogas is ____________ and cheap for cooking and heating.

A.
plenty
B.
abundant
C.
serious
D.
expensive

9.
A hydropower station ______________ in the North of the country nextyear.

A.
was built
B.
were built
C.
will be built
D.
has been built

10.
We should put ___________ on our roof for the heating and hot water.

A.
solar energy
B.
equipment
C.
cracks
D.
solar panels


II. Change the following sentences in to the Passive Voice. 1. Scientists will find solutions to reduce pollution in our city. Solutions _____________________________________________________ 2. Governments will make more regulations to reduce industrial pollution. More regulations ______________________________________________
III. Use the cues given to write correct sentences. 1. Solar panels/ place/ the roof/ a house/ and/ sun’s energy/ use/ heat water. ........................................................................................................................ 2. The energy/ store/ a number of days. ........................................................................................................................ 3. Car/ use solar energy/ gas/ by the year 2030. ........................................................................................................................

1
13 tháng 4 2017

I. Choose the best answer (A, B, C or D).
1.By the middle of the 21st century, people in developing countries____ more renewable energy.
A. uses B. will be using C. used D. have used
2. The wind, the sun, and the wave are some types of ____________ sources of energy.
A. changeable B. alternative C. cheap D. costly
3. Alternative sources of energy ____________ developed in the near future.
A. is B. was C. has been D. will be
4. Fossil fuels are very common in our society but they ____________ theenvironment.
A. renew B. provide C. waste D. pollute
5. “Why is it called a _____________ source?” – “Because it can be replacedeasily and quickly.”
A. effective B. specific C. renewable D. non-renewable
6. Hydro power is _____________ because dams cannot be built in certainareas.

A. limited B. unlimited C. abundant D. enough
7. At this time next week, we ______________ a wind turbine in our garden.
A. install B. installed C. will installed D. will be installing
8. Biogas is ____________ and cheap for cooking and heating.
A. plenty B. abundant C. serious D. expensive
9. A hydropower station ______________ in the North of the country nextyear.
A. was built B. were built C. will be built D. has been built
10. We should put ___________ on our roof for the heating and hot water.
A. solar energy B. equipment C. cracks D. solar panels
II. Change the following sentences in to the Passive Voice.

1. Scientists will find solutions to reduce pollution in our city.

=> Solutions to reduce pollution in our city will be found by scientists

2. Governments will make more regulations to reduce industrial pollution.

=> More regulations to reduce industrial pollution will be made by goverments
III. Use the cues given to write correct sentences.

1.=> Solar panels are placed on the roof of a house and the sun's energy is used to heat water .

2. The energy/ store/ a number of days.

-> The energy can be stored in a number of days

3. Car/ use solar energy/ gas/ by the year 2030.

=>Car will be used solar energy instead of gas by the year 2030.