一道题求助~

莫里亚提

Because natural gas is composed mostly of methane, a simple hydrocarbon, vehicles powered by natural gas emit less of certain pollutants than the burning of gasoline or diesel fuel.
(A) less of certain pollutants than the burning of gasoline or diesel fuel
(B) fewer of certain pollutants than burning gasoline or diesel fuel do
(C) less of certain pollutants than gasoline or diesel fuel
(D) fewer of certain pollutants than does burning gasoline or diesel fuel
(E) less of certain pollutants than those burning gasoline or diesel fuel
the key:E
用less修饰pollutants为什么对呢？
谢谢~

jaze

因为这里less 没有修饰pollutans啊
这里是 less of pollutants
说的是   这些 pollutants 的 quantity
所以用less啊
如果你用fewer of pollutants
是说， A排除5类污染物， B 排除3类污染物

kikisunflower

这里的less做副词，修饰的是emitted

知识点from白勇语法，less of表示“较少地”，修饰动词。

less作副词的其他情况：
As rainfall began to decrease in the Southwest about the middle of the twelfth century,most of the Monument Valley Anasazi abandoned their homes to join other clans whose access to water was less limited.
A.whose access to water was less limited
B.where there was access to water that was less limited
C.where they had less limited water access
D.with less limitations on water access
E.having less limitations to water access

答案A， 这里less修饰的是limited，而不是access。

莫里亚提

谢谢~好详细哦！