2. 外语
  3. The way the Earth interacts with the sun’ s energy can be displayed in a diagram called the Earth’s energy budget. It displays t

The way the Earth interacts with the sun’ s energy can be displayed in a diagram called the Earth’s energy budget. It displays t

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问题     The way the Earth interacts with the sun’ s energy can be displayed in a diagram called the Earth’s energy budget. It displays the sun’ s energy that reaches us and【C1】______of that energy is absorbed and reflected【C2】______the earth and its atmosphere. Solar energy reaches earth as electromagnetic radiation.【C3】______the energy reaches earth, some of it is absorbed by the atmosphere, including clouds. Some of it【C4】______it to the earth ’ s surface, and is absorbed by land and oceans. The amount of energy absorbed affects【C5】______first of all. The energy that is not absorbed by the earth or its atmosphere is reflected back out to space in the same wavelengths【C6】______it came to earth.
    On average, the amount of energy【C7】______is equal to the amount of energy going out. So, we say the earth’ s energy budget is【C8】______. If more energy was coming in than was going out, the earth’ s temperature would【C9】______On the other hand, if too much energy is reflected, and not absorbed, we’ d see a decrease in the earth’ s temperatures.
    Of all of the sun’ s energy that【C10】______the Earth, about 70% is absorbed by the land, ocean, atmosphere and clouds and about 30% is reflected back into space.
【C3】
选项 A、Though
B、Since
C、While
D、Once
答案D
解析 这是一道词汇题，考点是连词在上下文中的意思。
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