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?
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?
Every time a human being or other mammal exhales, there is some carbon dioxide released into the air.
The conversion of methane to electricity would occur at a considerable distance from the landfills.
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.
Methane in the atmosphere is more effective in blocking the escape of heat from the Earth than is carbon dioxide.
The amount of methane emitted from the landfills could be reduced if the materials whose decomposition produces methane were not discarded, but recycled.
答案是D,可是我不太明白,proposal说要减少温室气体的排放,the methane now emitted from open landfills should instead be burned to produce electricity.反对意见是这样认为的,燃烧甲烷发电会产生二氧化碳进入大气,意思也就是说不能减少温室气体的排放。C选项不就是削弱了反对的意见吗?C的意识就是用来发电的甲烷是一种替代燃料不会产生任何温室气体,那么不就是证明了反对意见不成立吗??
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.
我的翻译是这种甲烷一般会被用作某种不排放温室气体的燃料的替换物。that does not produce ...修饰的是a fuel而不是methane。所以我的意见是C是个无关选项。
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.
我的翻译是这种甲烷一般会被用作某种不排放温室气体的燃料的替换物。that does not produce ...修饰的是a fuel而不是methane。所以我的意见是C是个无关选项。