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Global warming refers to an increase in global surface temperature resulting
Global warming refers to an increase in global surface temperature resulting
游客
2023-07-11
22
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问题
Global warming refers to an increase in global surface temperature resulting from an increase in the amount of carbon dioxide, methane, and certain other trace gases in the atmosphere. These gases are【S1】______known as greenhouse gases because they【S2】______to the warming of the earth’s surface and lower atmosphere, a phenomenon called the greenhouse effect. Partly because the【S3】______of carbon dioxide is related to the essential use of the carbon based energy sources, the【S4】______of global warming incorporates a broad, scientific and political debate about its significance and consequences.
Today, as the results of the efforts of thousands of scientists over several decades who have studied climate and its【S5】______with the global land-ocean-atmosphere system, the scientific understanding of global warming is both more clear and complex. Scientists have obtained strong【S6】______that climate does indeed change, on scales【S7】______from a few seasons to millennia. Scientists have further shown that human activities can indeed influence the climate.
As a sign of change in the international responses to global warming, delegates at a meeting under the Framework Convention on Climate Change in 2002 in New Delhi issued a declaration concluding that "Actions are required to【S8】______energy supply by developing advanced, clearer, more efficient, affordable and cost-effective energy technologies". No matter how the science and politics【S9】______over the coming years, one fact remains【S10】______: global warming presents a challenge that will be with us for decades and perhaps centuries to come.
A)irrefutable B)contribute C)diversify D)evolve
E)irrelevance F)collectively G)emission H)issue
I)claim J)question K)interconnection L)respectively
M)evidence N)ranging O)devote [br] 【S1】
选项
答案
F
解析
此处,需要由副词充当状语成分修饰动词known,基于语意逻辑性,collectively(总体上)符合句意,涵盖上文中的“carbon dioxide,methane,and certain other trace gases in the atmosphere”(二氧化碳、甲烷及大气中的其他微量气体)。词库中,副词respectively(分别的)不符合逻辑句意。此句意为:这些气体总称温室气体,它们导致地球表面变暖,空气稀薄,这一现象被称为温室效应。
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