prep2-sc 29，突然发现prep也好难，大家帮下忙，看看这题吧

Unlike many United States cities, where a river is no longer the focal point of urban life, the river in San Antonio winds through the middle of the business district, and the River Walk, or Paseo del Rio, is the city's most popular attraction.

(A) Unlike many United States cities, where a river is no longer the focal point of urban life, the river in San Antonio

(B) Unlike the river in many cities in the United States, which is no longer the focal point of urban life, in San Antonio the river

(C) Today the river in many cities in the United States is no longer the focal point of urban life, unlike San Antonio, where it

(D) In few United States cities today, a river is the focal point of urban life, but the river in San Antonio

(E) No longer do many cities in the United States have a river as the focal point of urban life, but in San Antonio the river

选e呐，好奇怪的答案，为什么选这个啊，其他错哪里呢？

nn来帮帮我啊。。。。

拿到题目的时候先读一遍题目，大致确定几个考点。

首先假定是Unlike的结构，那A就变成了cities和river比较，所以错；同样C选项将river和cities并列了，也错。

B的Which有指代US的嫌疑，根据题目意思which指代的应该是cities，所以错。

D选项我一开始就排除了，因为纵观整个GMAT语法的正确选项，简洁和精确是必然的，D选项中居然出现了3套主谓结构，尽管粗看连接上是没有问题的，但是一般不太可能是正确答案。最重要的是原句中有no longer，这是非常强烈的语气词，所以正确答案一定会含有相同或表达相似意思的词出现，而这是D选项最终被排除的原因。

E楼主觉得读起来不舒服是很正常的，用了一个倒装结构，可能只要语感不是很好的中国人读起来都会有点别扭，但是整个选项有倒装（通常是正确的答案标志），保留了强烈语气词no longer，but很好地表达了San Antonio和other cities的对比以及语气上的转折，因此E是正解。