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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 enetic 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A中,ing为什么不可以做结果状语,看了很多解释,说ancestor不能reduce their numbers,但是ing做结果状语的时候,逻辑主语不是应该可以是主句主语或整句话吗?比如说,she skated yesterday, breaking her legs. 感谢大家!!! |
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