请教OG158的一个小问题

新兵蛋子

158. With only 5 percent of the world's population, United States citizens consume 28 percent of its nonrenewable resources, drive more than one-third of its automobiles, and use 21 times more water per capita than Europeans do.
(A)    With
(B)    As
(C)    Being
(D)    Despite having
(E)    Although accounting for
OG解释说As is unidiomatic in B.，但我不知道为什么，请问那为高人指点？

anchoret

as 后面加名词表示作为。。。

这里不通

而今迈步从头越

The word or phrase that begins this sentence should establish the contrast between the size of the United States population and the activities of its citizens. Choices D and E are the only ones that establish the contrast, and only E, the best choice, expresses meaning accurately with the phrase Although accounting for. With in choice A and Despite having in choice D confusingly suggest that United States citizens somehow possess, rather than constitute, 5 percent of the world's population. Choices B and C lose the contrast between the opening phrase and the main clause, and As is unidiomatic in B.

不明白OG得这句解释，AS固然没有表达这种转折对比，但as 表作为讲，也不是不通阿（当然撇开contrast不谈）

作为世界上5%的人口，美国人。。。

而今迈步从头越

没有人回答，自己顶一下！

bryan0806

as 当"作为"时候 前面都有个动词

放前面通常用作 like 像的意思 后接句子

这是我个人感觉

mmmzzz

我认为，as放在句前表“作为”的时候，前后的名词应该是同质的，比如：

As a teacher, I can give you some advice.

这里teacher和I都是人。

但是上面这题，5 percent和citizen就不是同质的，所以as在这里作为用的话，不正确！

请NN指教！

ethyl

mmmzzz:

你自己已经是nn啦，不用指教啦

jerry1121

但是上面这题，5 percent和citizen就不是同质的，所以as在这里作为用的话，不正确！

可我觉得前后应该是5 percent of the world's population 和citizen啊

Ambera

但是这句5 percent of the world's population 中心词是5 percent亚

huangyh03

citizens as 5%,逻辑意思错误，人是百分比？