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IV. Choose the best answer, a, b, c or d to complete the sentence.

1. Once non-renewable energy sources are used_______________they are gone forever.

a. out b. up c. for d. off

2. Many chemicals have a damaging effect ______________effect environment.

a. on b. inc. to d. for

3. Renewable energy isalso called”____________energy” because it doesn’t pollute the air.

a. inexhaustible b. available c. clean d. dangerous

4. ____________ the pollution it cause, coal still plays an important role inthe production of electricity around the world.

a. Despite b. Due to c. Even though d. However

5. What ________if carbondioxide levels continue to increase?

a. happenb. will happen c. will be happened d. will be happening

6. The use of wind energy is growing rapidly because it is widely available and______________.

a. environmentalfriendly b. environmental friendlyc. environment friendlyd. friendly environmental

7.Using solar panels at home can help____________your electric bill and your carbon footprint.

a. reduceb.increasec. provided. convert

8. Wind power is the most promising______________source of energy.

a. non-renewable b.natural c. limited d. alternative

9. You can save much water by______________.

a. using energy saving light bulbs b. using biogas for cooking c. taking showers instead of baths d. walking or riding a bike to school

10. ‘Is it difficult to reduce our carbon footprints?’ ‘________________’

a.It depends on the way you think. b. Not at all. Just practicing the 3R’s. c. It’s not if we still rely on fossil fuels. d. I’m not sure. What will happen?

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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

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

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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

I Choose the correct answer A,B,C or D to finish the sentences 1. We will cut down on the use of natural gas because it is ____ and harmful to the environment A plenty B limited C available D abundant 2. In many countries electricity , gas and water are ___ A sales B consumers C necessities D appliances 3. Low energy light bulbs should be used to ____ electricity A spend B buy C convert D save 4. All the houses in our village will be ____ by solar energy A heated B heightened...
Đọc tiếp

I Choose the correct answer A,B,C or D to finish the sentences

1. We will cut down on the use of natural gas because it is ____ and harmful to the environment

A plenty B limited C available D abundant

2. In many countries electricity , gas and water are ___

A sales B consumers C necessities D appliances

3. Low energy light bulbs should be used to ____ electricity

A spend B buy C convert D save

4. All the houses in our village will be ____ by solar energy

A heated B heightened C frozen D widened

5. If we go on ____ electricity , we will have to pay a lot next month

A wasting B increasing C turning on D making

6. We must ____ the amount of water our family use every day

A lowe B reduce C lessen D narrow

7. Which of following is NOT renewable source of energy

A hydro B solar C wind D coal

8. Nuclear energy is ___ , but it is dangerous

A renewable B fossil fuel C non - renewable D natural réource

9. Some new energy-saving bulbs ____ in the dining room

A will put B will be putting C will be put D will being put

!0. At this time next year we ____ to work to support the air pollution cutting down campaign

A will cucle B will be cycled C are cycling D will be cycling

4
14 tháng 8 2017

I Choose the correct answer A,B,C or D to finish the sentences

1. We will cut down on the use of natural gas because it is ____ and harmful to the environment

A plenty B limited C available D abundant

2. In many countries electricity , gas and water are ___

A sales B consumers C necessities D appliances

3. Low energy light bulbs should be used to ____ electricity

A spend B buy C convert D save

4. All the houses in our village will be ____ by solar energy

A heated B heightened C frozen D widened

5. If we go on ____ electricity , we will have to pay a lot next month

A wasting B increasing C turning on D making

6. We must ____ the amount of water our family use every day

A lowe B reduce C lessen D narrow

7. Which of following is NOT renewable source of energy

A hydro B solar C wind D coal

8. Nuclear energy is ___ , but it is dangerous

A renewable B fossil fuel C non - renewable D natural réource

9. Some new energy-saving bulbs ____ in the dining room

A will put B will be putting C will be put D will being put

10. At this time next year we ____ to work to support the air pollution cutting down campaign

A will cucle B will be cycled C are cycling D will be cycling

14 tháng 8 2017

1. We will cut down on the use of natural gas because it is ____ and harmful to the environment

A plenty B limited C available D abundant

2. In many countries electricity , gas and water are ___

A sales B consumers C necessities D appliances

3. Low energy light bulbs should be used to ____ electricity

A spend B buy C convert D save

4. All the houses in our village will be ____ by solar energy

A heated B heightened C frozen D widened

5. If we go on ____ electricity , we will have to pay a lot next month

A wasting B increasing C turning on D making

6. We must ____ the amount of water our family use every day

A lowe B reduce C lessen D narrow

7. Which of following is NOT renewable source of energy

A hydro B solar C wind D coal

8. Nuclear energy is ___ , but it is dangerous

A renewable B fossil fuel C non - renewable D natural réource

9. Some new energy-saving bulbs ____ in the dining room

A will put B will be putting C will be put D will being put

!0. At this time next year we ____ to work to support the air pollution cutting down campaign

A will cucle B will be cycled C are cycling D will be cycling

1 tháng 4 2017

VI . Give the correct form of the words given to complete the sentences :

1. Solar energy is renewable , ....PLENTIFUL........ and clean . PLENTY

2. We should reduce the use of .....ELECTRIC..... at home . ELECTRICITY

3. Waves will be used as an ....ENVIRONMENTAL....... friendly source of energy . ENVIRONMENT

4. Solar power can be used to ......HEAT...... or cool our house . HOT

5. There will be a ...SHORTAGE...... of energy in the near future . SHORT

6. Scientists are looking for clean and...EFFECTIVE..... sources of energy. EFFECT

7. More renewable energy sources will be used to solve the problem of ......POLLUTION..... POLLUTE

1 tháng 4 2017

VI . Give the correct form of the words given to complete the sentences :

1. Solar energy is renewable , ......plentiful...... and clean . PLENTY

2. We should reduce the use of .....electricity..... at home . ELECTRICITY

3. Waves will be used as an ......environmentally..... friendly source of energy . ENVIRONMENT

4. Solar power can be used to .......heat..... or cool our house . HOT

5. There will be a ...shortage...... of energy in the near future . SHORT

6. Scientists are looking for clean and....effective.... sources of energy. EFFECT

7. More renewable energy sources will be used to solve the problem of ....pollution....... POLLUTE

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

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We use many different energy sources to do work for us. Energy sources are classified into two groups - renewable and nonrenewable. Non-renewable energy sources are those that take millions of years to form and will run out some day. It is energy that comes from fossil fuels such as coal, crude oil, and natural gas. Fossil fuels are mainly made up of carbon and were formed millions of years ago. The chemical reaction which takes place when we burn fossil fuels releases carbon compounds such as...
Đọc tiếp

We use many different energy sources to do work for us. Energy sources are classified into two groups - renewable and nonrenewable. Non-renewable energy sources are those that take millions of years to form and will run out some day. It is energy that comes from fossil fuels such as coal, crude oil, and natural gas. Fossil fuels are mainly made up of carbon and were formed millions of years ago. The chemical reaction which takes place when we burn fossil fuels releases carbon compounds such as carbon monoxide and carbon dioxide into the air. Carbon dioxide is one of the green house gases which is contributing to global warming and air pollution. On the other hand, renewable energy sources will never run out, are better for the environment and do not cause pollution. Renewable energy is often called green energy because it is a natural energy, always available and does not have to be formed like nonrenewable energy. The green energy is always there. For example, the Sun consistently shines, water is abundant, and the winds blow throughout the year. The five types include solar, energy from the Sun; geothermal, energy from heat within the Earth; hydroelectric, energy from moving water; biomass, energy from dead plants and microorganisms and finally, energy from the wind.

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2. Mr Lam is giving a lecture on energy sources. Read the text and choose the best option (A, B, or C) to complete the sentences.(Ông Lâm đang giảng bài về các nguồn năng lượng. Đọc văn bản và chọn phương án tốt nhất (A, B hoặc C) để hoàn thành các câu.)Hello, class. Today I'd like to tell you about two energy sources. They are non-renewable sources and renewable sources.Non-renewable sources are coal, oil and natural gas. We can use these sources to produce...
Đọc tiếp

2. Mr Lam is giving a lecture on energy sources. Read the text and choose the best option (A, B, or C) to complete the sentences.

(Ông Lâm đang giảng bài về các nguồn năng lượng. Đọc văn bản và chọn phương án tốt nhất (A, B hoặc C) để hoàn thành các câu.)

Hello, class. Today I'd like to tell you about two energy sources. They are non-renewable sources and renewable sources.

Non-renewable sources are coal, oil and natural gas. We can use these sources to produce energy. They are cheap and easy to use. People use them a lot. But they are very limited and will run out soon.

Renewable sources come from the sun, wind or water. When energy comes from the sun, we call it solar energy. Wind energy comes from the wind, and hydro energy comes from water. Renewable sources are available, clean and safe to use. But they are expensive to produce.

In the future we will rely more on renewable energy sources. They are better for the environment and they will not run out.

1. Non – renewable sources are cheap and _________.

A. available

B. easy to use 

C. expensive

2. _________come from the sun, wind or water.

A. Renewable sources

B. All energy sources

C. Non-renewable sources

3. When energy comes from water, we call it_________.

A. wind energy 

B. solar energy

C. hydro energy 

4. Renewable energy sources are better for_______.

A. the environment 

B. our cars

C. hydro energy

 

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11 tháng 2 2023

2. Mr Lam is giving a lecture on energy sources. Read the text and choose the best option (A, B, or C) to complete the sentences.

(Ông Lâm đang giảng bài về các nguồn năng lượng. Đọc văn bản và chọn phương án tốt nhất (A, B hoặc C) để hoàn thành các câu.)

Hello, class. Today I'd like to tell you about two energy sources. They are non-renewable sources and renewable sources.

Non-renewable sources are coal, oil and natural gas. We can use these sources to produce energy. They are cheap and easy to use. People use them a lot. But they are very limited and will run out soon.

Renewable sources come from the sun, wind or water. When energy comes from the sun, we call it solar energy. Wind energy comes from the wind, and hydro energy comes from water. Renewable sources are available, clean and safe to use. But they are expensive to produce.

In the future we will rely more on renewable energy sources. They are better for the environment and they will not run out.

1. Non – renewable sources are cheap and _________.

A. available

B. easy to use 

C. expensive

2. _________come from the sun, wind or water.

A. Renewable sources

B. All energy sources

C. Non-renewable sources

3. When energy comes from water, we call it_________.

A. wind energy 

B. solar energy

C. hydro energy 

4. Renewable energy sources are better for_______.

A. the environment 

B. our cars

C. hydro energy

Choose the best answer. 6. If we reduce the energy we use, we……………….money. A. are saving B. will save C. will be saved D. will be saving 7. At 3 o’clock tomorrow afternoon, I …………..the meeting on Climate Change. A. attended B. have attended C. will be attended D. will be attending 8. The effects of climate change…………..at the high – level conference next month. A. will discuss B. will be discussing C. will be discussed D. was discussed 9. Do you think renewable energy ……………..fossil energy before...
Đọc tiếp

Choose the best answer.
6. If we reduce the energy we use, we……………….money.
A. are saving B. will save C. will be saved D. will be saving
7. At 3 o’clock tomorrow afternoon, I …………..the meeting on Climate Change.
A. attended B. have attended C. will be attended D. will be attending
8. The effects of climate change…………..at the high – level conference next month.
A. will discuss B. will be discussing C. will be discussed D. was discussed
9. Do you think renewable energy ……………..fossil energy before 2030?
A. will replace B. is replacing C. will be replacing D. will be replaced
10. The children …………..to school because it’s snowing.
A. are walking B. will walk C. will be walking D. won’t be walking
11. Solar and wind …………..instead of fossil fuels within 20 years?
A. are used B. will be used C. will use D. will be using
12. Humankind’s future…………….bright if they can utilize renewable energy in the future.
A. is B. was C. will be D. won’t be
13. Where …………..in ten years?
A. do you live B. are you living C. will you be lived D. will you be living
14. We ……………able to create a future that’s free of carbon pollution by using renewable energy sources.
A. will be B. won’t be C. will be being D. will have been
15. Solar panels ……………….outdoors to capture sunlight and transform it into electricity.
A. will place B. will be placing C. will be placed D. will have placed

III. Read the following passage, and then choose the correct answers: true (T), or false (F).
“ My name is Professor Roberts, and tonight, I’m going to tell you how to save energy in your homes. Most of us use too much energy. You can reduce this amount by: using low energy light bulbs, using solar energy, turning off unnecessary lights, preparing food before turning on the cooker. If you follow these simple rules, you will not only save energy but also keep the environment cleaner.”

16. The professor tells us about the ways to cut down on wastes of energy T F
in our offices.
17. Almost everyone consumes too much energy. T F
18. Although solar energy is clean, the lecturer doesn’t advise us to use it. T F
19. The speaker gives four simple rules. T F
20. According to the speaker, energy will be saved. T F

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IV . Choose the correct answers : 1. Remember to ....... the lights before going to bed . A. turn B.turn off C.turn on D. stop 2. Biogas is .......... and cheap for cooking and heating . A. dangerous B. abundant C. serious D. expensive 3. 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 4. At this time next week , we ..... a wind turbine in our garden . A. install B. installed C. will install D. will...
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IV . Choose the correct answers :

1. Remember to ....... the lights before going to bed .

A. turn B.turn off C.turn on D. stop

2. Biogas is .......... and cheap for cooking and heating .

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

3. 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

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

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

5. Fossil fuels are very common in our society but they ........ the environment .

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

6. Hydro power is ......... because dams cannot be built in certain areas .

A. limited B. unlimited C. abundant D. enough

7. Why is it called a ..... source - Because it can be replaced easily and quickly .

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

8. Wave energy is a source of ........ energy .

A. environment friendly

B. environmentally friendly

C. environmental friendly

D. environmental friend

3
1 tháng 4 2017

IV . Choose the correct answers :

1. Remember to ....... the lights before going to bed .

A. turn B.turn off C.turn on D. stop

2. Biogas is .......... and cheap for cooking and heating .

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

3. 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

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

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

5. Fossil fuels are very common in our society but they ........ the environment .

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

6. Hydro power is ......... because dams cannot be built in certain areas .

A. limited B. unlimited C. abundant D. enough

7. Why is it called a ..... source - Because it can be replaced easily and quickly .

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

8. Wave energy is a source of ........ energy .

A. environment friendly

B. environmentally friendly

C. environmental friendly

D. environmental friend

1 tháng 4 2017

1b

2b

3c

4d

5d

6a

7c

8b