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标题: [求助]白勇Section 6-18 [打印本页]

作者: juni_wu 时间: 2008-12-26 07:34
标题: [求助]白勇Section 6-18

18. His studies of ice-polished rocks in his Alpine home-land, far outside the range of present-day glaciers, led Louis Agassiz in 1837 to propose the concept of an age in which great ice sheets had existed in now currently temperate areas.

(A) in which great ice sheets had existed in now currently temperate areas

(B) in which great ice sheets existed in what are now temperate areas

(D) when great ice sheets had existed in current temperate areas

(E) when great ice sheets existed in areas now that are temperate

答案：B

请教为什么不能用when引导？

作者: AlienX 时间: 2008-12-26 09:23
in which=when
GMAC prefers "in which" to "when". 可是不代表有when跟in which, when就錯
這題的考點不在in which跟when上...
- "what is/are now+地方"是一個常見的用法, LZ可以看一下prep跟OG都有這樣的用法.
- C的existed要跟in; where there were areas now temperate是一個roundabout way to express the idea...
- current是一個形容詞...不能修別外一個形容詞(temperate), 所以它mismodifies "areas"
- E的now可以看成修existed...

在白勇上的題, 99%都在OG(10/11)上...有官方的explanations...比我的非官方的explanations好....

作者: juni_wu 时间: 2008-12-27 09:58

非常感谢，回答非常清楚！

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