2. 外语
  3. Global warming is a trend toward warmer conditions around the world. Part of the warming is natural; we have experienced a 20,00

Global warming is a trend toward warmer conditions around the world. Part of the warming is natural; we have experienced a 20,00

admin2014-08-25  101
问题     Global warming is a trend toward warmer conditions around the world. Part of the warming is natural; we have experienced a 20,000-year-long warming as the last ice age ended and the ice【C1】______away. However, we have already reached temperatures that are in【C2】______with other minimum-ice periods, so continued warming is likely not natural. We are【C3】______to a predicted worldwide increase in temperatures【C4】______between 1℃ and 6℃ over the next 100 years. The warming will be more【C5】______in some areas, less in others, and some places may even cool off. Likewise, the【C6】______of this warming will be very different depending on where you are—coastal areas must worry about rising sea levels, while Siberia and northern Canada may become more habitable(宜居的)and【C7】______for humans than these areas are now.
    The fact remains, however, that it will likely get warmer, on【C8】______, everywhere. Scientists are in general agreement that the warmer conditions we have been experiencing are at least in part the result of a human-induced global warming trend. Some scientists【C9】______that the changes we are seeing fall within the range of random(无规律的)variation—some years are cold, others warm, and we have just had an unremarkable string of warm years【C10】______—but that is becoming an increasingly rare interpretation in the face of continued and increasing warm conditions.
A)appealing I)melted
B)average J)persist
C)contributing K)ranging
D)dramatic L)recently
E)frequently M)resolved
F)impact N)sensible
G)line O)shock
H)maintain
【C10】
选项
答案L
解析 空格前面为一个完整的句子，不缺少成分，根据句子结构分析可知，这里缺少一个时间副词，所以空格处应填入一个副词。根据句子的现在完成时形式，可知此处所缺时间副词可以修饰现在完成时。由此确定副词recently为本题答案，意思为“最近”。备选副词中，frequently表示事情发生的频率，与句意不符，可以排除。
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大学英语四级

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