作者：英吉
Proposal: Carbon dioxide and methane in the atmosphere block the escape of heat into space. So emission of these “greenhouse” gases contributes to global warming. In order to reduce global warming, emission of greenhouse gases needs to be reduced. Therefore, the methane now emitted from open landfills should instead be burned to produce electricity.
Objection: The burning of methane generates carbon dioxide that is released into the atmosphere.
Which of the following, if true, most adequately counters the objection made to the proposal?
A.Every time a human being or other mammal exhales, there is some carbon dioxide released into the air.
B.The conversion of methane to electricity would occur at a considerable distance from the landfills.
C.The methane that is used to generate electricity would generally be used as a substitute for a fuel that does not produce any greenhouse gases when burned.
D.Methane in the atmosphere is more effective in blocking the escape of heat from the Earth than is carbon dioxide.
E.The amount of methane emitted from the landfills could be reduced if the materials whose decomposition produces methane were not discarded, but recycled.
题目分析：A说人类或其他哺乳类动物呼吸时也能释放二氧化碳。原文谈的是methane怎么使用来减少温室气体，和这些家伙呼吸有什么关系，范围不对，杀。B说用methane产电会离landfills比较远，没说，杀。C说methane用来替代一种不会产生温室气体的燃料，原文m这个东西就是来围绕是否减少温室气体谈的，替代的是一种不会产生温室气体的东西，范围不对，杀。D说m比二氧化碳更容易产生温室效应，信息原文提过，留着。E说如果产生m的原材料被回收而不是被弃用的话，m的量会减少，没说过，杀。
