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  3. There is a definite possibility that the climate of the world may be changing. Some scientists imagine that this could even mean

There is a definite possibility that the climate of the world may be changing. Some scientists imagine that this could even mean

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问题     There is a definite possibility that the climate of the world may be changing. Some scientists imagine that this could even mean the beginning of another ice age. The effects of such a change in climate on the human population of the world would be startling.
    Recent research suggests that the general warming trend of the past hundred years or so may be coming to an end. During the past ten years, meteorologists tell us the average temperature of the earth has dropped about one degree Fahrenheit. This does not seem like much, but it could have effects on wind and rain patterns which influence the overall weather picture. If these patterns change a lot, it could mean that certain regions of the world may continue to have long droughts while others will possibly suffer from widespread flooding.
    What regulates the climate is not exactly known. Meteorologists believe that clouds may be an important factor in regulating the amount of solar heat held by the earth, which in turn determines the temperature of the planet. Another possibility is that man’ s industrial and agricultural methods may be affecting the natural weather patterns. However, the weather is not understood well enough for scientists to say for certain what is happening to the climate and what side effects this will actually have on the World’s population.
According to what you have read, which of the following is TRUE?
选项 A、Man’s activities have no effect on the climate.
B、Another ice age will come soon.
C、People don’t care about the changing climate.
D、Scientists are not yet sure about the reason for the changing climate.
答案D
解析 本题为推理判断题，提问的是根据原文，下列哪项是正确的。选项A)称人类活动对气候变化没有任何影响，这与文中“Another possibility is that man’s industrial and agricultural methods may be affecting the natural weather patterns．”不相符；选项B)表示新一轮的冰河时代很快来临，而文章并不认为冰河时代的到来速度很快；选项C)称人们不在意全球气候的变化，这与文章整体内容不符。所以正确答案为D)。
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