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GRE阅读模拟在线练习附答案一百零五

2018-07-27 14:28:00来源：网络

　　备考GRE阅读的过程中，很多同学都在寻找备考资料。其中最好的复习资料就是练习题，通过不断的模拟练习，可以让大家更好地寻找到自己在GRE阅读备考中的不足。因此，新东方在线GRE频道为大家整理部分练习题，供大家参考。

点击查看》》》【GRE阅读真题在线练习附答案汇总】

　　In a plausible but speculative scenario, oceanographer Douglas Martinson suggests that temperature increases caused by global warming would not significantly affect the stability of the Antarctic environment, where sea ice forms on the periphery of the continent in the autumn and winter and mostly disappears in the summer. True, less sea ice would form in the winter because global warming would cause temperatures to rise. However, Martinson argues, the effect of a warmer atmosphere may be offset as follows. The formation of sea ice causes the concentration of salt in surface waters to increase; less sea ice would mean a smaller increase in the concentration of salt. Less salty surface waters would be less dense and therefore less likely to sink and stir up deep water. The deep water, with all its stored heat, would rise to the surface at a slower rate. Thus, although the winter sea-ice cover might decrease, the surface waters would remain cold enough so that the decrease would not be excessive.

　　It can be inferred from the passage that which of the following is true of the surface waters in the current Antarctic environment?

　　A.They are more affected by annual fluctuations in atmospheric temperatures than they would be if they were less salty.

　　B.They are less salty than they would be if global warming were to occur.

　　C.They are more likely to sink and stir up deep waters than they would be if atmospheric temperatures were to increase.

　　D.They are able to offset some of the effects of global warming beyond the Antarctic region.

　　E.They are less affected by the temperature of deep water than they would be if atmospheric temperatures were to increase.

　　The passage suggests that Martinson believes which of the following about deep waters in the Antarctic region?

　　A.They rise to the surface more quickly than they would if global warming were to occur.

　　B.They store heat that will exacerbate the effects of increases in atmospheric temperatures.

　　C.They would be likely to be significantly warmed by an increase in atmospheric temperatures.

　　D.They would be more salty than they currently are if global warming were to occur.

　　E.They are less likely to be stirred up when surface waters are intensely salty than when surface waters are relatively unsalty.

　　According to the passage, which of the following is true about the sea ice that surrounds the Antarctic continent?

　　A.The amount of sea ice that forms in the winter has been declining.

　　B.Most of the sea ice that forms in the winter remains intact in the summer.

　　C.Even small changes in the amount of sea ice dramatically affect the temperature of the surface waters.

　　D.Changes in the amount of sea ice due to global warming would significantly affect the stability of the Antarctic environment.

　　E.Changes in the amount of sea ice affect the degree of saltiness of the surface waters.

　　正确答案:C A E

　　以上就是关于“GRE阅读模拟在线练习附答案一百零五”的内容，更多精彩内容，请关注GRE频道!


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