高中英语题Americans eat more than twice as many

题目

高中英语题Americans eat more than twice as many
Americans eat _________vegetables per person today as they did in 1990
A more than twice B as twice as many
C twice as many as D more than twice as many
应该选D.为什么?C 哪里不对?

答案

注意下序数词+as+形容词+as是固定用法,表示前者在某一方面是后者的几倍.
故AB形式上都不正确.
这道题是拿美国人现在的蔬菜饮食量和1990年的时候进行对比,注意they did in 1990的前面已经有一个as了,故选项中不能再出现结构中后一个as.所以C是错的,D是对的.