2. 外语
  3. Man-made climate change is "unequivocal(毋庸置疑的)" and demands urgent action. Yesterday’s report from the Intergovernmental Panel o

Man-made climate change is "unequivocal(毋庸置疑的)" and demands urgent action. Yesterday’s report from the Intergovernmental Panel o

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问题     Man-made climate change is "unequivocal(毋庸置疑的)" and demands urgent action. Yesterday’s report from the Intergovernmental Panel on Climate Change underlined the former point,【C1】______discussions at the World Economic Forum in Davos last week demonstrated the growing consensus on the【C2】______. The challenge now is action.
    The IPCC’s warning is serious: temperatures are likely to【C3】______by about 3℃ by 2100, with a【C4】______of 2℃ to 4.5℃. The latter would be close to the difference【C5】______the hast ice age and today.
    Adaptation is going to be part of the response, not least【C6】______a substantial rise in temperatures is already on the way: the stock of greenhouse gases in the【C7】______now is already 50 percent【C8】______pre-industrial levels. But it is also essential to【C9】______growth in the stock, ideally to【C10】______it below 550 parts per million, which would【C11】______be double the pre-industrial levels.
    On present trends, the atmosphere is【C12】______to reach such a concentration in just three decades. To【C13】______levels rising further, emissions will need to be reduced【C14】______at least 50 per cent below what Sir Nicholas Stern called "business as usual" --【C15】______is, the continuation of historic trends--by then.
    The good news,【C16】______the Stern review of climate change, is that the economic【C17】______of achieving these objectives【C18】______be as little a 1 per cent of global gross product. However, the【C19】______news is that big changes to long-lived investment decisions will be required soon,【C20】______in the power sector.
【C16】
选项 A、suggests
B、doubts
C、predicts
D、promises
答案A
解析 结构衔接题。根据上下文及选项综合分析，这句话采用了倒装，正常语序应该是：The Stern review of climate change ______the good news is that the economic...。doubt“怀疑”用在句中明显不符。 predict和promise后面从句中的动作应该发生在未来，而原文是一种现实，也排除。suggest在这里表示“显示，表明”，后面不用虚拟语气。
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大学英语四级

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