Prep-1-139 求助

ktj

139.
            (32262-!-item-!-188;#058&006043)

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.

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

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

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

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

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

答案是E.

句子结构是什么? 不明白.

carolinelmf

倒装，地球上，对日斑循环最准确的指示就是树木的生长，如在其年轮上显示的。

ktj

Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow, as seen in the rings visible in the cross sections of their trunks.

正确顺序是什么呢? 兰色部分介词短语怎么能倒装到句首做主语的感觉?

qianrene

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

ktj

才女!谢谢!

lisony

C为什么不对？

afflare

同问这里句尾as的用法？

还有另外一题Prep-1-132：

A recent review of pay scales indicates that CEO’s now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times in 1980.

     A     that CEO’s now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times

     A     that CEO’s now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times

     B     that, on average, CEO’s now earn 419 times the pay of blue-collar workers, a ratio that compares to 42 times

     C     that, on average, CEO’s now earn 419 times the pay of blue-collar workers, as compared to 42 times their pay, the ratio

     D    CEO’s who now earn on average 419 times more pay than blue-collar workers, as compared to 42 times their pay, the ratio

     E     CEO’s now earning an average of 419 times the pay of blue-collar workers, compared to the ratio of 42 times

从网上查阅as的用法：as单独引导定语从句

as单独引导定语从句时，先行词可以是一个词，也可以是一个句子或短语。

此两处如果均是以上用法，那么as的先行词补齐分别是什么？

139题C的错误在哪里?

[此贴子已经被作者于2007-12-22 18:12:24编辑过]

afflare

没辙了，老是发两遍。请NN多多指教！

afflare

查了一下as可以做关系代词，引导非限制性定语从句。另外as可以引导壮语从句，表示理由，时间，让步，状态或方式。这里究竟是什么用法？

lulu_odin