新gre考试实施以来,参加了新版gre考试的考生都觉得阅读部分的题难度增加了,这主要是由于新gre考试逻辑阅读需要考生的逻辑反应一定要比以前更快,可能考生还是有点不习惯,或是没有准备充足。那么,接下来的几天,小编将给大家搜索整理一些新gre考试逻辑阅读的练习题,希望考生能从平日的练习中总结规律,找到解题技巧。
The molecules of carbon dioxide in the Earths
atmosphere affect the heat balance of the Earth by
acting as a one-way screen. Although these molecules
allow radiation at visible wavelengths, where most of
5 the energy of sunlight is concentrated, to pass
through, they absorb some of the longer-wavelength,
infrared emissions radiated from the Earths surface,
radiation that would otherwise be transmitted back
into space. For the Earth to maintain a constant aver age
10 temperature, such emissions from the planet must
balance incoming solar radiation. If there were no
car-bon dioxide in the atmosphere, heat would escape
from the Earth much more easily. The surface temperature
would be so much lower that the oceans might be a solid mass
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