完形填空。
We can use many kinds of energy.  Most energy in the   l    today comes
from   2   coal and oil. But this will not be so in the year 2050. We will get much
of our energy _ 3   water, the sun and the   4   .We will produce atomic(原子)
energy, much more coal and   5   as raw material（原始材料）for cloth,
plastics and other things.
Some  6    of the world are very dry. Very __7_ people live there,   8   
there is a lot of sunshine and wind. With   9   atomic energy and energy from the
sun and wind, we will be able to bring fresh water from far away or change sea
water  10  fresh water.
(     )1. A. moon
(     )2. A. burning
(     )3. A. in
(     )4. A. moon
(     )5. A. water
(     )6. A. parts
(     )7. A. few
(     )8. A. and
(     )9. A. cheap
(     )10. A. to

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