31. A. pollution B. enpense C. noise D. weather
32. A. oil B. coal C. gas D. solar
33. A. dangerous B. noise C. expensive D. advantage
34. A. Hydropower B. Wind turbines C. Solar panels D. Nuclear
35. A. safe B. expensive C. advantage D. dangerous
31. A. pollution B. enpense C. noise D. weather
32. A. oil B. coal C. gas D. solar
33. A. dangerous B. noise C. expensive D. advantage
34. A. Hydropower B. Wind turbines C. Solar panels D. Nuclear
35. A. safe B. expensive C. advantage D. dangerous
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.
Complete each sentence with the correct form of 1 of the given verbs given.
convert be involve use
pollute release replace make
1. Burning coal and oil.....carbon dioxide that harms the environment.
2. Many families ......biogas
3. Using non - renewable energy sources .....the environment
4. Solar power can be .......into electricity
5. There....a shortage of energy in the near future.
6. Producing biomass energy...burning waste, and this may have ba impacts on the environment.
7. Coal is a non - renewable source of energy, because it cannot be easily.....
8. The wind turns turbines to.... energy
6. source of energy is the source that can’t be replaced after use.
A. Effective B. Non-renewable C. Renewable D. Natural
7. Which of the following is NOT renewable source of energy?
A. wind B. coal C. hydro D. solar
8. We are looking for cheap, clean and sources of energy.
A. serious B. dangerous C. effective D. efficient
9. By the middle of the 21st century, people in developing countries more renewable energy.
A. used B. have used C. uses D. will be using
10. If we go on electricity, we will have to pay a lot next month.
A. turning on B. widened C. wasting D. increasing
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. ........................................................................................................................
roofs | garden | non - polluting | polluting |
the moon | are | renewable | the Sun |
Solar energy is a long lasting source (0)..of.. energy, and it can be used almost anywhere. To generate solar energy, we only need solar cells and (1).....................! Solar cells can easily be installed on house (2) ................., so we don’t need any new space. Compared to other (3)...................... sources, they also possess many advantages: wind and water power rely on turbines which (4).................noisy, expensive and which take up large space. Solar cells are totally silent and (5).......................... As they have no moving parts, they require little maintenance and have a long lifetime.
Question 5
roofs | garden | non - polluting | polluting |
the moon | are | renewable | the Sun |
Solar energy is a long lasting source (0)..of.. energy, and it can be used almost anywhere. To generate solar energy, we only need solar cells and (1).....................! Solar cells can easily be installed on house (2) ................., so we don’t need any new space. Compared to other (3)...................... sources, they also possess many advantages: wind and water power rely on turbines which (4).................noisy, expensive and which take up large space. Solar cells are totally silent and (5).......................... As they have no moving parts, they require little maintenance and have a long lifetime.
Question 4
roofs | garden | non - polluting | polluting |
the moon | are | renewable | the Sun |
Solar energy is a long lasting source (0)..of.. energy, and it can be used almost anywhere. To generate solar energy, we only need solar cells and (1).....................! Solar cells can easily be installed on house (2) ................., so we don’t need any new space. Compared to other (3)...................... sources, they also possess many advantages: wind and water power rely on turbines which (4).................noisy, expensive and which take up large space. Solar cells are totally silent and (5).......................... As they have no moving parts, they require little maintenance and have a long lifetime.
Question 3
V. Read the following passage, then choose a word from the box and write the correct word next to numbers 1-5. There is one exemple.
roofs | garden | non - polluting | polluting |
the moon | are | renewable | the Sun |
Solar energy is a long lasting source (0)..of.. energy, and it can be used almost anywhere. To generate solar energy, we only need solar cells and (1).....................! Solar cells can easily be installed on house (2) ................., so we don’t need any new space. Compared to other (3)...................... sources, they also possess many advantages: wind and water power rely on turbines which (4).................noisy, expensive and which take up large space. Solar cells are totally silent and (5).......................... As they have no moving parts, they require little maintenance and have a long lifetime.
Question 1
V. Read the following passage, then choose a word from the box and write the correct word next to numbers 1-5. There is one exemple.
roofs | garden | non - polluting | polluting |
the moon | are | renewable | the Sun |
Solar energy is a long lasting source (0)..of.. energy, and it can be used almost anywhere. To generate solar energy, we only need solar cells and (1).....................! Solar cells can easily be installed on house (2) ................., so we don’t need any new space. Compared to other (3)...................... sources, they also possess many advantages: wind and water power rely on turbines which (4).................noisy, expensive and which take up large space. Solar cells are totally silent and (5).......................... As they have no moving parts, they require little maintenance and have a long lifetime.
Question 2