请教在比较短语中，twice是否可以直接跟名词？OG与prep08解释不一样，谢谢！

carandl

请问在比较短语中，twice是否可以直接跟名词？OG中说twice要跟数量，价值之类的词，跟名词要加as many as或者as much as才可以。
prep08语法笔记中，说twice后面可以直接接名词，twice as much as也是对的。谢谢！
例题如下：（第202题）
Providing initial evidence that airports are a larger source of pollution than they were once believed to be, environmentalists in Chicago report that the total amount of pollutant emitted annually by vehicles at O’Hare International Airport is twice as much as that which is being emitted annually by all motor vehicles in the Chicago metropolitan area.
A.        as much as that which is being emitted annually by all
B.        as much annually as is emitted by the
C.        as much compared to what is annually emitted by all
D.        that emitted annually by all  （正确）        
E.        that emitted annually compared to the

吃饭睡觉打豆豆

小菜豆试着回答下，
twice后面可以接明示或暗示数字量的部分。
twice as much as
twice the increase
twice the number of
twice the rate of
都可以

carandl

吃饭睡觉打豆豆 发表于 2014-7-20 15:03
小菜豆试着回答下，
twice后面可以接明示或暗示数字量的部分。
twice as much as

谢谢，解释很清楚了！你的解释，让我重新研究了题目结构，明白了that指代的是amout of pollutant，不矛盾啦。谢谢！

lily510

同意二楼，曼哈顿13章有讲到两个句型，twice as much as&twice the previous attendance 所以后面加名词和as much as应该都是可行de。