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We need energy to live and work. Our major source of energy is oil. Oil is one kind of fossil fuels. The amount of fossil fuels in the world is limited. Therefore, we must save it, and at the same time we must find new sources of energy. Geothermal heat and nuclear power are alternative sources of energy. They can give us electricity. Other alternative sources are the sun, the wave, and the water. These sources are not only unlimited and available but also clean and safe to the environment. People should develop and use them more and more in the future.                                                                                                    

1. What do we need energy for?                                                                                                                                                 →                                                                                                                                                                       

2. What is our major source of energy?                                                                                              →                                                                                                                             

3. Why must we save fossil fuels?                                                                                                 →                                                                                                                                                    4. What are the advantages of the other alternative sources of energy?                                       →                                                                                                                                   5. Should people develop and use the alternative sources of energy more and more in the future?                                        

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    Because of people’s                         with the environment, many kinds of plants and animals are becoming rare.

a. supply                                b. survival                  c. influence               d. interference

2.      The farmers and their cattle         had been trapped in the storm were fortunately rescued

a. who                                    b. whom                     c. which                     d. that

3.      Nowadays, people are thinking of __________ energy as an alternative.

a. solar                                    b. Sun                        c. Earth                      d. Moon

4.      Forest destruction results ____________ floods and air pollution.

a. from                                    b. about                      c. in                              d. into

5.      Garbage is considered to be some kinds of                     .

a. pollute                              b. pollutants              c. pollution                d. polluting

6.      The                 is the air, water and land in or on which people, animals and plants live.

a. consequence         b. environment                    c. planet         d. resource

7.      More and more rare animals are                             danger of extinction.

a. for                                       b. on                           c.at                              d. in

8.      It’s the best film ____________ has ever been made  about madness.

a. which                                 b. whom                     c. who                        d. that

9.      The hotel staff are always friendly and courteous.

a. efficient                                   b. polite                      c. helpful                    d. perfect

10. My mother _______________ enjoys hill walking.

a. who is in her seventies                                              c. , that in her seventies

b. , which is in her seventies                                       d. , who is in her seventies,

11. Mark Twain is an author ________ I like best

a. his books                     b. that books             c. the book of whom            d. whose books

12. Laws have been introduced to prohibit the killing of endangered animals.

a. advise               b. decrease               c. ban                         d. encourage

13. The main threat to the _________ of these creatures comes from their loss of habitat

a. survive             b. survivor                 c. survival                  d. survivable

14. Oil, coal and natural gas are ____________ fuels made from decayed material from animals and plants.

a. unleaded                      b. smokeless             c. solid                                   d. fossil

15. Solar energy is not only plentiful and infinite but also clean and safe.

a. boundless                    b. unlimited              c. uncountable                      d. inflexible