第 11 至 15 題為題組       The sun is an extraordinarily powerful source of energy. In fact, the Earth __11__ 20,000 timesmore energy from the sun than we currently use. If we used more of this source of heat and light, it__ 12__ all the power needed throughout the world.
      We can harness energy from the sun, or solar energy, in many ways. For instance, many satellites inspace are equipped with large panels whose solar cells transform sunlight directly __13__ electric power.These panels are covered with glass and are painted black inside to absorb as much heat as possible.         Solar energy has a lot to offer. To begin with, it is a clean fuel. In contrast, fossil fuels, such as oil orcoal, release __14__ substances into the air when they are burned. __15__ , fossil fuels will run out, butsolar energy will continue to reach the Earth long after the last coal has been mined and the last oil wellhas run dry.
【題組】11.
(A) repeats
(B) receives
(C) rejects
(D) reduces