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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
49
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.
In the middle of the second paragraph the word "intentionally" means______.
选项
A、purposely
B、dangerously
C、carefully
D、carelessly
答案
A
解析
本题是一道词汇含义类问题。问第二段中间部分中intentionally一词的意思是什么。如果词汇量足够大的话,我们知道此词的意思是“故意地、有意地”。因此,可以直接选出本题的正确答案A“有意地”。另外,我们也可以根据上下文推断出来。文章的上下文指出,发现美洲以后,人们开始注意到北极。探险家们便试图寻找一条去印度和中国西行的海路。在寻找西北通道的过程中,探险家们所遇到的主要问题是如何绕开冰区。一位名为南森的探险家给这一问题找到了一个非同寻常的答案。他故意闯入冰区,随冰漂流,竟然穿越了北冰洋!由此我们可以推知,探险家们都在想方设法绕开冰区,而南森进入冰区就是有意或故意的了。因此,本题的正确答案应是A。
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