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The northern and southern polar regions are different in many ways. The most important difference concerns the distribution of l
The northern and southern polar regions are different in many ways. The most important difference concerns the distribution of l
admin
2014-04-23
25
问题
The northern and southern polar regions are different in many ways. The most important difference concerns the distribution of land and water. The northern Arctic regions are ice-covered sea, almost completely surrounded by land. The pole itself is in deep water. In the south, Antarctic is a huge continent which is surrounded by a great ocean. Because of this basic difference other differences occur. The Arctic has a varied climate, while the Antarctic climate varies little; the Arctic has much plant life, but the Antarctic is an empty desert. And whereas the Arctic has been exploited economically for centuries, trade has never really touched Antarctic.
Interest in the Arctic began when America was discovered, and explorers tried to find a western sea route to India and China. In their search to find the "North-West Passage" the main problem facing the explorers was how to avoid the ice. One explorer, Nansen, found a unique answer to this problem. He intentionally became struck in the ice and traveled with it across the Arctic Ocean! But although many explorers tried, it was not until 1903 that the Arctic polar region was crossed by sea. Antarctic exploration begins with Ptolemy. He believed that all the oceans were surrounded by land, and therefore, there was huge continent somewhere in the south. His idea led to centuries of search, and again trade played its part. The real discoverers of Antarctic were the hunters who traveled far south to catch seals.
One reason for the present interest in both polar regions is that world may soon be short of fresh water. In fact, over 85% of the earth’s entire fresh water is found in the polar ice. If we could find a way of carrying this ice to other parts of the world, this would solve all our fresh water problems.
Which of the following conclusions does the passage support?
选项
A、The Arctic will be more favorably explored than Antarctic.
B、The world will soon suffer from fresh water shortage.
C、The Arctic and Antarctic are promising for future fresh water supply.
D、It’s not difficult to carry ice from the Arctic or Antarctic to other parts of the world.
答案
C
解析
本题是一道涉及作者观点的问题。问文章内容可以支持以下哪个结论。针对所给的四个选项,利用查阅式阅读法,结合原文相关部分内容,我们可以推测出本题的正确答案应是C“南极和北极为未来提供淡水资源展示了希望的前景”。参照文章最后一段的内容,目前,人们对两极地区关注的原因之一是:世界上可能很快就会缺乏淡水。实际上,地球上总淡水量的85%以上见之于极地冰。如果我们能找到一种方法把这里的冰运到世界上的其他地区,我们所有的淡水问题将会得以解决。
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