1. We should develop such __________ sources of energy as solar energy and nuclear energy. A. tradition B. alternative C. revolutionary D. surprising 2. There is now increasing concern about the world's energy __________ particularly about those involving fossil fuels. A. possessions B. goods C. materials D. resources 3. The __________ of these toxic substances into the environment is potentially devastating. A. delivery B. release C. distribution D. research 4. __________ is produced from the heat stored in the earth's core. A. Geothermal energy B. Nuclear energy C. Solar energy D. Water energy 5. Solar energy can be changed __________ electricity. A. in B. to C. into D. for 6. Oil, coal and natural gas are _________ fuels made from decayed material from animal or plants. A. unleaded B. smokeless C. solid D. fossil 7. We could make better __________ of our energy resources. A. spend B. use C. need D. limit 8. People believe that __________energy is an alternative source of natural energy. A. sun B. gas C. coal D. solar 9. People put solar __________ on the roofs of houses to get solar energy. A. windows B. boards C. panels D. bricks 10. All fossil fuels are __________ resources. A. renew B. renewable C. non - renewable D. renewed 11. My car doesn’t start because of __________ petrol. A. empty B. exhausted C. running out of D. dried 12. Fossil fuels will be __________ in a relatively short time. A. exhausted B. released C. renewed D. recycled 13. A nuclear reactor releases ______ which is dangerous to the environment. A. radiation B. heat C. energy D. carbon dioxide 14. A greenhouse is warm because the glass traps the________of the sun A. tide B. heat C. cool D. electricity 15. A ______ is a structure that is used to convert the power of the wind into electricity. A. dam B. windmill C. machine D. panel 16. Many newer cars have a much lower fuel ______. A. consuming B. consumer C. to consume D. consumption 17. Vietnam is rich in ________ , such as coal, apatite, bauxite, etc. A. natural resources B. seas C. land D. fish Choose the synonym of the underlined word 18. Solar energy is not only plentiful and infinite but also clean and safe. A. boundless B. unlimited C. uncountable D. inflexible 19. Nuclear power is cleaner than coal. A. strength B. might C. rule D. energy 20. Fossil Fuels will be exhausted within a relatively short time A. comparatively B. shortly C. rapidly D. disadvantageously