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  3. The reason minimum temperatures are going up more rapidly than maximums may involve cloud cover and evaporative cooling. Clouds

The reason minimum temperatures are going up more rapidly than maximums may involve cloud cover and evaporative cooling. Clouds

admin2015-05-25  108
问题 The reason minimum temperatures are going up more rapidly than maximums may involve cloud cover and evaporative cooling. Clouds tend to keep the days cooler by reflecting sunlight, and the nights warmer by(i)______loss of heat from Earths surface. Greater amounts of moisture in the soil from additional precipitation and cloudiness(ii)______the daytime temperature increases because part of the solar energy is(iii)______the evaporation of that moisture.
选项
答案A,F,I
解析 The second sentence asserts that clouds make for warmer nights by doing something to the loss of heat from Earth. Since less heat lost means more warmth, a word that means preventing or slowing heat loss is required for Blank(i). "Inhibiting" is therefore the answer. "Exacerbating" has the opposite meaning, while "replicating" makes no sense in this context. Since the first sentence asserts that daytime highs are increasing less rapidly than nighttime lows, Blank(ii)calls for a verb that indicates a moderation in rises in temperature during the day, and "restrain" has this sense. "Augment," meaning to increase, has the opposite meaning, while "mask" would indicate that measurements are not reflecting actual increases in temperature, an idea not supported by the rest of the passage. The "because" in the last sentence indicates that the second clause explains how daytime temperature increases are restrained; it does so by making reference to solar energy and the evaporation of moisture. Because solar energy is responsible for increases in daytime temperature, the answer to Blank(iii)requires a word that explains how evaporation can lessen or divert that energy for other purposes. "Used up in" does this because it indicates that less solar energy is available to warm the Earth’s surface when a portion of it is instead devoted to evaporation. Neither "intensified by" nor "unrelated to" indicate a connection between solar energy and evaporation that would lessen warming.
Thus the correct answer is inhibiting(Choice A), restrain(Choice F), and used up in(Choice I).
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