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gmat考750 · 发表于 2011-8-23 22:55:08

On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.


	On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow

	On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth

	On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles

	Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate

	Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

答案是E, 没太理解，求解答！

lijialu · 发表于 2011-8-23 23:09:47

树木生长的速度，正如树的横截面的年轮，是地球上最合适的太阳照射周期体现。逻辑语义上，on earth 应该修饰indications；Among 引起的完全倒装，介词结构＋谓语＋主语，从句as修饰the rate,. 主语为 the rate 所以谓语用单数（排除AB）；D缺谓语，CE存在争议，但从逻辑语义上E更合适，且从句as也离the rate更近，更清楚。

gmat考750 · 发表于 2011-8-23 23:32:15

树木生长的速度，正如树的横截面的年轮，是地球上最合适的太阳照射周期体现。逻辑语义上，on earth 应该修饰indications；Among 引起的完全倒装，介词结构＋谓语＋主语，从句as修饰the rate,. 主语为 the rate 所以谓语用单数（排除AB）；D缺谓语，CE存在争议，但从逻辑语义上E更合适，且从句as也离the rate更近，更清楚。

-- by 会员 lijialu (2011/8/23 23:09:47)

其实就是不太明白C 和E

qilu8989 · 发表于 2011-8-24 00:33:32

e是逻辑胜出因为句子表达的意思是地球上的indications，这种情况下，on earth要离它修饰的词越近越好

wyw1018 · 发表于 2011-8-24 02:22:45

c的trees 和 their离得太远，their指代不清

请教一个GWD语法题！！

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