（即将考试，求帮忙）PREP破解 185 (GWD-8-Q41)（看完讨论帖还是不甚明了）

像风一样离去

amount修饰的是不可数名词啊，果断排掉CDE。
剩下的就不用说了吧？

cynthia628

看了这么多帖子觉得这道题可以学到好多知识点，归纳一下哈：
1，less修饰不可数名词，但是less of+可数名词单数/可数名词复数/不可数名词。
2，amount修饰不可数名词。
3, that many是unidiomatic expression.而as many是正确用法，并且twice as many/one quarter as many在英语中非常常见。（manhattangmat原话："twice as many", "one-quarter as many", etc. are not only acceptable as idiomatic expressions but also extremely common in the english language.）
4，as...many表示，和...数量一样多，往往在句子中已经提到过那个数量。
5，什么时候用as...many，什么时候用as...many...as？
   If you have already mentioned that data elsewhere in the sentence,use as...many structure.
      If you haven't mentioned,please use the complete structure-as...many as.
examples:
There were once 20 shirts on this shelf, but, now, barely half as many are left.
There are barely half as many shirts on this shelf as there were last week.

CaiB

我之前一直觉得是C，查了OG后才明白，另外感谢LS几位大牛

绿阳Eva

惊喜顿悟，谢谢参与讨论的NN们~~

davisyang

great!

lovelyhawk

我觉得c对，这里的amount是名词性（金额、合计、数量），不是形容词，若形容词肯定修饰不可数。that amount就是4000. one-quarter of that amount = 1000 , 所以，这里amount没有错。还原c: there are fewer drive-ins than 1000.

lovelyhawk

b也对，但C更好，b还原 there are fewer driven-ins than 1/4 as many (4000) driven-ins exised in usa. 后面都省了。

olivia瓜瓜

lovelyhawk 发表于 2013-9-3 19:46
b也对，但C更好，b还原 there are fewer driven-ins than 1/4 as many (4000) driven-ins exised in usa.  ...

为什么C更好呢？