"far less carbon dioxide and other gases that have..." appears to indicate that the engines emit other gases (not LESS OF those other gases). note that you can't read this as "less (carbon dioxide ... and other gases...)", either -- i.e., with "less" applying to both things -- because "less other gases" doesn't make sense.
that have a comparable size,不如of 结构简洁;they不知指代谁
less不可修饰可数名词gases
这个句子不可以读成less other gases since "gases" here is plural,这句话只可以理解成emit less carbon dioxide and emit other gases;you could have "fewer gases" (= not as many different kinds), or "less OF the gases" (= a smaller total quantity)... but not "less gases".
the most straightforward thing in choice D: "far less carbon dioxide and other gases that have..." appears to indicate that the engines emit other gases (not LESS OF those other gases). note that you can't read this as "less (carbon dioxide ... and other gases...)", either -- i.e., with "less" applying to both things -- because "less other gases" doesn't make sense. you could have "fewer gases" (= not as many different kinds), or "less OF the gases" (= a smaller total quantity)... but not "less gases".
less不能同时修饰carbon dioxide和other gases, 一个不可数名词,一个可数名词
做题时没有找到真正的考点,浪费了很多时间在到底是of comparable size还是that have a comparable size. 事实上,解这道题的真正考点在:1. far fewer vs far less 2. having been implicated vs that have been implicated. 3. as well as emitting vs as well as emit.
less不能同时修饰carbon dioxide和other gases, 一个不可数名词,一个可数名词
othergases表示种类,可数,不能用less
C. fewer不能同时修饰carbon dioxide and other gases D. less不能同时修饰carbon dioxide and other gases E. fewer不能同时修饰carbon dioxide and other gases;having implicated为错误的结构,应改写 为 that have implicated
and also they 指代不清
that have a comparable size,不如of 结构简洁; less不可修饰可数名词gases
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