这道题目超级纠结，看过所有的解释，都不能得到令人信服的解答，今天再次看这道题目，突然脑中灵光一现，有全新的方向来解释这道题目：各位朋友都没有注意到， B中which is no longer the focal point of urban life 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 我依稀记得主系表结构，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的地点状语 open to discuss
开始我也选了B，认为which跳过in the United States修饰city在GMAT中也有类似的case。后来仔细看看，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。所以我排除了B选项，选了E。
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. + B中which is no longer the focal point of urban life 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. 结合两位NN的看法，可以把B排出掉了。谢谢！
sjmdlyc 发表于 2010-11-15 13:14
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 U ...
B选项有指代歧义，这是硬伤，属于GMAT大忌，用这个可以排除B是可以接受的。
但是关于“a river is the focal point ”的歧义的解释是说不同的，因为E中“have a river as the focal point of urban life”是主+谓+宾+宾补的形式，宾补的作用就是修饰宾语的，判断一个结构是不是宾补最简单有效的方法就是试试：宾 is 宾补 逻辑上有没有错误。显然E中尽管没有使用主系表结构直接说“a river is the focal point ”，但其宾语+宾补的结构表达的还是“ a river is (as) the focal point of urban life”的逻辑意思。所以用这个解释是站不住脚的。
大家可以试试： I consider GMAC a piece of shit. （GMAC is a piece of shit）
其实这道题这能用排除法做：
ABCD都有直接语法错误，E虽然改的大了点儿，但是至少没有语法错我，根据GMAT“选择更好的那个”的原则，没办法只能选E.
附上RON的解释：
choice b:
comparison isn't so good:
the second part should start directly with 'the river' (instead of 'in san antonio the river...'), so that the comparison is more clear.
much more importantly, poor use of the relative pronoun 'which':
'...cities in the united states, which is no longer the focal point...'
relative pronouns like which, by default, refer to the noun that's closest to the left, which in this case is the united states. therefore, this relative pronoun is used in a way that's either ambiguous (if you allow it to potentially refer to other nouns) or just plain wrong (if you follow the rule strictly).
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发表于 2009-7-21 22:35:00
