1. For a long time/ people/ use water/ power machines. ........................................................................................................................ 2. Solar panels/ place/ the roof/ a house/ and/ sun’s energy/ use/ heat water. ........................................................................................................................ 3. We/ use energy/ the sun, the wind, and the water. ....................................................................................................................... 4. Many countries/ already using/ solar energy. ........................................................................................................................ 5. The earth’s fossil fuels/ running out. ........................................................................................................................ 6. We/ looking/ cheap, clean, effective source/ energy/ not cause pollution or waste natural resources. ........................................................................................................................ 7. Recently/ wind/ use/ generate electricity. ........................................................................................................................ 8. The sun/ supply/ all energy/ used/ grow plants/ evaporate water/ rain/ and/ maintain/ temperature/ planet ........................................................................................................................ 9. At present/ most/ our electricity/ come/ use/ coal, gas, oil or nuclear power. ........................................................................................................................ 10. Today/ water power/ mostly/ use/ generate electricity. ........................................................................................................................ 11. This power/ could/ provide/ sun. ........................................................................................................................ 12. If we/ able/ collect solar energy/ we/ be sure/ have enough power. ...................................................................................................................... 13. Scientists/ try/ find/ other alternative sources/ energy. ........................................................................................................................ 14. One percent/ solar energy/ reach/ earth/ enough/ provide power/ the total population. ........................................................................................................................ 15. Viet Nam/ an advanced technology/ solar energy. ........................................................................................................................ 16. The energy/ store/ a number of days. ........................................................................................................................ 17. Car/ use solar energy/ gas/ by the year 2030. ........................................................................................................................ 18. Energy/ wind/ use/ centuries/ move ships, grind grain, pump water/ and/ do other forms/ work. ........................................................................................................................ 19. On/ cloudy/ you/ use/ solar energy/ too. ........................................................................................................................ 20. Almost all our energy/ come/ oil/ gas/ natural gas. We/ them/ fossil fuels. ........................................................................................................................

Đỗ Minh Phương

Phương pháp để trả lời câu hỏi này là sắp xếp các từ/cụm từ thành một câu hoàn chỉnh theo thứ tự hợp lý. Dưới đây là một số cách trả lời cho các câu hỏi:

1. For a long time, people have been using water to power machines.

2. Solar panels are placed on the roof of a house and they use the sun's energy to heat water.

3. We use energy from the sun, the wind, and the water.

4. Many countries are already using solar energy.

5. The earth's fossil fuels are running out.

6. We are looking for a cheap, clean, and effective source of energy that does not cause pollution or waste natural resources.

7. Recently, wind has been used to generate electricity.

8. The sun supplies all the energy used to grow plants, evaporate water to form rain, and maintain the temperature of the planet.

9. At present, most of our electricity comes from using coal, gas, oil, or nuclear power.

10. Today, water power is mostly used to generate electricity.

11. This power could be provided by the sun.

12. If we are able to collect solar energy, we can be sure to have enough power.

13. Scientists are trying to find other alternative sources of energy.

14. One percent of solar energy that reaches the earth is enough to provide power for the total population.

15. Vietnam has advanced technology in solar energy.

16. The energy can be stored for a number of days.

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

18. Energy from wind has been used for centuries to move ships, grind grain, pump water, and do other forms of work.

19. On cloudy days, you can still use solar energy.

20. Almost all our energy comes from oil, gas, and natural gas. We refer to them as fossil fuels.