Because natural gas is composed mostly of methane, a simple hydrocarbon, vehicles powered by natural gas emit less of certain pollutants than those burning gasoline or diesel fuel.
为何这句less of的结构里面those burning gasoline or diesel fule后面省去了和emit相对应的did 呢？
Because natural gas is composed mostly of methane, a simple hydrocarbon, vehicles powered by natural gas emit less of certain pollutants than those burning gasoline or diesel fuel.
为何这句less of的结构里面those burning gasoline or diesel fule后面省去了和emit相对应的did 呢？
关于less of: 终于找到曼哈顿里Ron的明确解答---"Less of a/an ___" doesn't refer to a literal quantity. It's an expression that means, roughly, "not as true" or "not having as much of the essence of a/an ____".
Since that's an awkward definition, here is an example:
My grandfather thought that crying made you less of a man. (i.e., like "less manly")
Much more importantly, "smaller" vs. "less of a" is there just to distract you. You don't actually need it to solve the problem.
* You can eliminate a/b/c because the comparison has two possible meanings: (1) commitment to work vs. commitment to family, or (2) young people's commitment to work vs. their parents' and grandparents' commitment to work.
* You can eliminate E because "than" is there without "less".
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发表于 2009-10-12 22:12:00
