A. Right B. Wrong C. Not mentioned
答案:C
第三部分:概括大意与完成句子
阅读下面这篇短文,短文后有2项测试,任务:(1)1-4题 要求从所给的4个选项中为段每段选择1个正确的小标题;(2)第5-8题 要求从所给的5个选项中选择4个正确选项,分别完成每个句子。
Climate Change : The Long Reach
1 . Earth is warming. Sea levels are rising. There s more carbon in the air, and Arctic ice is melting faster than at any time in recorded history. Scientists who study the environment to better gauge (评估) .Earths future climate now argue that these changes may not reverse for a very long time .
2 . People burn fossil fuels like coal and oil for energy. That burning releases carbon dioxide, a colorless gas . In the air , this gas traps heat at Earths surface . And the more carbon dioxide released , the more the planet warms . If current consumption of fossil fuels doesnt slow , the long-term climate impacts could last thousands of years-and be more severe than scientists had been expecting. Climatologist Richard Zeebe of the University of Hawaii at Manoa offers this conclusion in a new paper.
3. Most climate-change studies look at whats going to happen in the next century or so . During that time, changes in the planets environment could nudge(推动) global warming even higher. For example: Snow and ice reflect sunlight back into space. But as these melt, sunlight can now reach-- and warm the exposed ground . This extra heat raises the air temperature even more, causing even more snow to melt. This type of rapid exaggeration of impacts is called a fast feedback.
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