2. 职称英语
  3. For the last fifty years, the globe has been warming up. It is true that

For the last fifty years, the globe has been warming up. It is true that

游客2024-08-22  21
问题     For the last fifty years, the globe has been warming up.
    It is true that the average temperature【C1】r______is only about two degrees, but that has been【C2】e______to start the glaciers【C3】______(recede)in many parts of the world.
    A rise of one degree per generation is a large【C4】in______. Nature seldom moves as swiftly as this. We may have been helping her. To a very large【C5】______, the temperature of the Earth is determined【C6】______the amount of solar heat which the atmosphere can keep.
    The air above us sets like the glass in a greenhouse, trapping many of the heat waves which would【C7】other______bounce back into space. Carbon dioxide in the air is mostly responsible 【C8】______the "greenhouse effect" : it is a gas produced by all our countless fires, furnaces(熔炉)and internal combustion engines(内燃机).
    The end of the age of fossil fuels is already in sight: soon in one or two centuries at the roost we will have wasted all the world’s【C9】re______of oil and coal. This no longer means disaster, for【C10】______(atom)energy has arrived in time to save our civilization from dying through lack of power. [br] 【C7】
选项
答案 otherwise
解析 otherwise要不然，否则。句意：我们上空的大气层就像温室里的玻璃一样能吸收很多本该被反射回太空的热量。
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