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Special devices have already been made avaible to put on the roofs of houses and flats to (1) catch the sun's rays and the thus heat water. Thousands (2) of these devices are now being used to provide (3) energy in homes throughout the United States while more (4) than a million solar water-heating units have already been (5) built in home in Japan. Other purposes for which (6) solar energy is at present being used include the separation of salt from seawater, irrigation and sewage disposal (7) for most people in developing countries, the need is not for air-conditioners or central heating but for cheap (8) ways of cooking food, drying crops and lighting homes
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Tidal energy is renewable plentiful and clean -Wind will be used as an environmental friendly sources of energy . -There are many ways will be used to solve the problem of pollution
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-Tidal energy is renewable ...plentiful......... and clean (plenty)
-Wind will be used as an ......enviromentally......... friendly sources of energy . (environment)
-There are many ways will be used to solve the problem of ....pollution...... (pollute)
-.......unfortunately....... , fossil fuels are harmful to the environment (fortunate)
-We should use them ....economic.......... and try to find out alternative sources of power . (economy)
-I think that solar energy can be an ...alternative.......... source of energy in the near future (alter)
-It's a clean source of energy . Sailboats couldn't move without this ......power....... (powerful)
-Limit car trips by relying on biking , walking public ..transportation........... (transport)
-Energy is used to ....produce........ a lot electrical thing (product )
-I don't think so . The solar penels are becoming .....uncheap....... and easy to install (cheap)
1. What is the source of solar energy?
A. sunlight B. photovoltaic cells C. solar panels D. electricity
2. Solar cells are used ______________.
A. to collect energy from the sun B. to provide sunlight to houses
C. to convert sunlight into electricity D. both A and C are correct
3. Which of the following statements is true?
A. Solar cells absorb all of the light energy from the sun.
B. The light energy causes the particles to move faster to make electricity.
C. Solar energy can be used to power homes and businesses only.
D. Large solar panels have been placed on cars and appliances.
4. Where have people fixed solar panels?
A. On the roofs of their houses B. Anywhere outside their houses
C. Inside their houses D. In the sunniest places