OG13 97求教~~快来踩踩~

sunyuwei

Some anthropologists believe that the genetic homogeneity evident in the world's people is the result of a "population bottleneck"—at some time in the past our ancestors suffered an event, greatly reducing their numbers and thus our genetic variation.
(A) at some time in the past our ancestors suffered an event, greatly reducing their numbers
(B) that at some time in the past our ancestors suffered an event that greatly reduced their numbers
(C) that some time in the past our ancestors suffered an event so that their numbers were greatly reduced,
(D) some time in the past our ancestors suffered an event from which their numbers were greatly reduced
(E) some time in the past, that our ancestors suffered an event so as to reduce their numbers greatly,

答案是B但是我觉得A选项貌似没问题~
1.明确了some time 和at some time的区别，some time表示一段时间，at some time 表示在某个时间点，所以CDE排除
2.对于破折号后面的that 是否要补出的问题不清楚，看到很多帖子上说that at some time 前面省略了they believe，但是我觉得破折号后面只是对前面句子的补充说明也未尝不可啊，为什么一定要并列？
3.A中reducing 作为伴随结果状语修饰前句哪里错了？

请NNNN解答~

sunyuwei

的顶顶顶顶顶。。。

patricialiu

我不是NN，逛论坛学习中

关于A，reducing 应该是做伴随状语，逻辑主语是ancestors即后面句子的主语，不符合逻辑意思。至于伴随状语是否可以修饰前面句子的情况我也不知道。

关于问题2，我也不清楚，不过感觉如果是楼主所说的“破折号后面只是对前面句子的补充说明也未尝不可啊”是否要补出另外一半破折号呢？

还是等大牛解答吧

sunyuwei

patricialiu 发表于 2014-10-13 16:57
我不是NN，逛论坛学习中

关于A，reducing 应该是做伴随状语，逻辑主语是ancestors即后面句子的主语，不符 ...

ing形式作伴随状语既可以表示动作同时发生，逻辑主语是ancestors；也可以是作伴随结果，此时不需要逻辑主语。我认为这道题目里面第二种情况是使用的==

问题二。。。好吧等大牛~

sunyuwei

大牛大牛。。。