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  3. The sun’s heat warms the air and makes it move. This movement is called a wind. Different parts of the Earth receive different a

The sun’s heat warms the air and makes it move. This movement is called a wind. Different parts of the Earth receive different a

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问题     The sun’s heat warms the air and makes it move. This movement is called a wind. Different parts of the Earth receive different amounts of heat. Near the equator(赤道), the sun is overhead and heats the Earth intensely (强烈). Nearer the poles, the sun’s rays strike the Earth at a low angle so the heat is not so intense.
    A lot of the earth’s heat is reflected back into spaces, by the atmosphere, clouds, dust in the air and by water, snow and ice. So some parts of the Earth are warm and some are cold. Warm air tends to rise and creates areas of high pressure. As warm air rises, cold air flows in and replaces it. The greater the pressure difference is, the stronger the wind blows.
Some parts of the Earth is warm and some are cold because______.
选项 A、a lot of the heat is reflected
B、there are clouds and dust in the air
C、different parts of the Earth receive and reflect different amount of heat
D、different parts of the Earth have different sources of heat
答案C
解析 本题考查的是对细节的把握能力。该题可以从文章第一段第三句Different parts of the Earth receive different amounts of heat推导出C选项。
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