2. 外语
  3. Many are surprised to learn that Antarctica (南极) is nearly twice the size of the United States. The name Antarctica was coined t

Many are surprised to learn that Antarctica (南极) is nearly twice the size of the United States. The name Antarctica was coined t

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问题     Many are surprised to learn that Antarctica (南极) is nearly twice the size of the United States. The name Antarctica was coined to mean" 【S1】______ to the Arctic (北极)." It is just that in many ways. Antarctica is a high, ice-covered landmass. In the Arctic the landmasses are grouped around the ice-covered Arctic Ocean.
    Largely because of this difference, the 【S2】______ of the two areas is very different. Antarctica is the coldest area in the world. On the 【S3】______ it is about 30 degrees colder than the Arctic. At the South Pole, nearly 10 000 feet high, monthly mean temperatures run well below zero. Only in coastal regions do temperatures sometimes rise above freezing in the summer. In contrast, near North Pole monthly mean temperatures often rise above freezing.
    At both poles, daily temperatures may 【S4】______ far below the monthly mean. At the .American South Pole Station, winter temperatures sometimes fall below -100 degrees Fahrenheit (华氏度). Elsewhere, on higher parts of the south polar plateau (高地), even lower temperatures are 【S5】______.
    Partly because of this climate difference, the land animals and plants of the two regions are very different. On the 【S6】______ of Antarctica, there are very few plants. In the Arctic there are many plants.
    Ice is the great 【S7】______ of Antarctica. More than 4.5 million square miles of ice sheet 【S8】______ the area. Great rivers of ice push down the mountains. Antarctica is the 【S9】______ of about 85 percent of the total world supply of ice.
    If this great volume of ice were to melt, the volume of the world oceans would 【S10】______ , and sea level would rise. Extreme atmosphere changes would have to take place for this to happen.

A) drop            B) recorded         C) increase           D) feature
E) general         F) continent        G) storehouse         H) coveting  
I) opposite        J) plants           K) decrease           L) average
M) climate         N) cover            O) temperature
【S5】
选项
答案B
解析 根据句意和前面的系动词are来判断，此处是“记录了更低的温度”。因而，用过去分词recorded 与 are构成被动语态。
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