GWD-10-Q37不解

steinlala

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

A.   On Earth, among the surestindications of sunspot cycles are believed to be the rate that trees grow
B.   On Earth, among the surestindications of sunspot cycles are, it is believed, the rate of tree growth
C.   On Earth, the rate at which treesgrow is believed to be among the surest indications of sunspot cycles
D.   Among the surest indications onEarth of sunspot cycles, believed to be the tree growth rate
E.    Among the surest indications onEarth of sunspot cycles is believed to be the rate at which trees grow
这题B哪里错了？还有，为什么是E呢？不太明白啊

ozymendias

B.   On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
这句话的实际主语是“the rate”，所以不应用“are”

E.    Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow
倒装句，所以结构是"介词短语+谓语+主语"

suners

回复 1# steinlala


on earth 到底在逻辑上应该修饰什么，是一处考点。
按照逻辑意思，应该是surest indications (of sunspot cycles) on earth，而不是it is believed on earth。

steinlala

这个是倒桩的主谓一致啊。。。谢谢啊~

honeypony

看了解释，还是想问问，后面的这个as seen ……是啥子成分啊？修饰的是

什么呢？

suners

回复 5# honeypony


as这里是代词，意思是a fact that。

as...这里是同位语，同位the rate at which trees grow。