以下是引用xiner_333在2009-8-10 16:07:00的发言：
（1） GWD-11-Q3:
Unlike human runners, who broke the four-minute mile in 1954 and they consistently recorded faster times ever since, horses in classic races such as the Kentucky Derby have had winning times with little improvement: Secretariat’s world-record-breaking Derby tine of 1:59 2/5, for example, was set in 1973 and remained unsurpassed more than a quarter of a century later.
A. they consistently recorded faster times ever since, horses in classic races such as the Kentucky Derby have had winning times with little improvement
B. they have consistently recorded faster times ever since, those of horses in classic races such as the Kentucky Derby have shown little improvement in winning times
C. have consistently recorded faster times ever since, horses in classic races such as the Kentucky Derby have shown little improvement in winning times
D. have consistently recorded faster times ever since, in those of classic races such as the Kentucky Derby, horses have had winning times with little improvement
E. consistently recorded faster times ever since, those of horses in classic races such as the Kentucky Derby have shown little improvement in winning times
E（C）
我不是什么老师，叫我老詹好了... btw 我的名字是James不是Jmaes
这个题目是GWD的传统争议题目，呵呵，既然是争议题目那就是到现在为止也没有一个明确的答案
不过如果是我的话我会坚定不移地选择C
A和B的错误是相对明显的，and 前面是一个定语从句有疑问代词who引导，但是后面却是一个完整的主谓结构they consistently recorded faster times ever since，这种平行是不允许的。 改正最直接的办法是去掉they 直接用and连接谓语动词用并列结构直接作who的从句的谓语部分修饰human runner;
另一方面，句子的实际意思就是再说人类成天刷新自己的纪录而马没有，所以AB中they开头的描述都是描述human runner的，逻辑意思上也支持上面语法规则的判断。
D的错误也是明显的， in those of classic races such as the Kentucky Derby中的those指代不明确，不知所谓，其次，这个部分作为一个插入结构，既可以向前作定语从句的状语部分 也可以向后作主句的谓语结构，有歧义。
E的错误并不明显，但是those of hoses的those指代很奇怪，一般来说 these those this that这样的指示代词通常情况下指代的是前面的某个名词的整体结构，而不是核心词 从这个角度上讲 它应该指代human runners，这就很古怪了。另外就好像robbie说的，如果直接用horses会对句子造成歧义么？明显是不会的，那么为什么要故意冗余的取用those of horses呢？ E的另一个问题就是完成时态的使用，因为人类刷新纪录是一个从过去开始一直持续到现在并且还在折腾的一个动作，这个动作应该用完成时态，更何况还有ever since这样的强烈时间标志
当然以上仅仅是我个人的理解，我也不是什么老师，只是一个对GMAT还比较感兴趣 愿意和大家一起探讨的学伴而已
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