2. 考研
  3. Hansen starts by arguing that the ice melting on and around Greenland and Antarctica will【B1】______rises in sea level that are m

Hansen starts by arguing that the ice melting on and around Greenland and Antarctica will【B1】______rises in sea level that are m

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问题     Hansen starts by arguing that the ice melting on and around Greenland and Antarctica will【B1】______rises in sea level that are much faster than【B2】______predictions, meaning that we are likely to see several metres of sea-level rise this century. It is an argument that he has been making for a long time. Even more startling are the【B3】______that Hansen thinks will result【B4】______this rapid melt. Because fresh water is less【B5】______than saltwater, the cold, fresh meltwater will【B6】______around the coasts of Greenland and Antarctica.
    Around Antarctica, this surface layer will act as a blanket, floating on top of warmer, saltier water and【B7】______it from losing heat to the air.【B8】______, this heat will go into melting the underside of ice shelves and glaciers. Hansen【B9】______that the growth in sea ice around Antarctica is a sign that this is starting to【B10】______already, with freshening surface water forming sea ice more【B11】______This freshwater layer will also【B12】______the currents that carry heat from the tropics to the poles, he argues, so the tropics will warm fast while high latitudes cool down because of the cold surface waters. This【B13】______difference, will power superstorms unlike anything we have ever seen, Hanse【B14】______
    Most【B15】______of all, Hansen thinks that all of this could happen with just a 2°C rise in temperature-the【B16】______safe limit.
    The consequences, of course, would be【B17】______"It is not difficult to imagine that【B18】______arising from forced migrations and economic collapse might make the planet【B19】______, threatening the fabric of civilisation, " the paper states. These claims do not reflect the views of most climate scientists. But here is the【B20】______message; we cannot be sure that Hansen is wrong.
【B9】
选项 A、argues
B、teaches
C、achieves
D、arises
答案A
解析 本题考查动词词义辨析。Hansen在这里提出了自己的观点，这里需要填一个表示提出观点的词。四个选项分别为：[A]argues“认为、主张”；[B]teaches“教”；[C]achieves“取得”；[D]arises“引起、发生”。只有argue表示提出观点或主张，故选项[A]符合文意，为正确答案。
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