prep 2-29.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
答案为E，never、on longer等否定词在句首需要倒装.我选了B，解释说B中which错误指代United States，但是有介词短语不是可以跳跃修饰吗，于是跳过两个介词短语in the United States和in many cities ，不就正确修饰the river 了吗？
B的开头为“Unlike the river(特指) in many cities in the United States”，而原文中则是“Unlike many United States cities, where a river（泛指）...”，且从意思上来看泛指更符合逻辑。此处的which跳跃指代产生了指代不清的后果，不能选B.
D中a river is the focal point of urban life,
E中have a river as the focal point of urban life
无论B和D，简化一下都是a river is the focal point ，E中是have a river as the focal point
主系表结构，是要表达主语的属性的，本题中the focal point 不是river的属性，所以不能用主系表结构
a river is the focal point应该表达成a river locates in the focal point
换句话说the focal point 不是river的属性，而是river的状语.
-- by 会员 sjmdlyc (2010/11/15 13:19:58)
请问为什么说B的which指代不清呢？我觉得从逻辑意思上来讲是指代river呢。 | 
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发表于 2011-5-13 18:04:00
