T-4-Q39 百分数后面为什么跟复数？？

hazardous

Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
A.Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

B.Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.

C.Vanished are nearly 99percent of the five hundred million different species of living creatures that appeared on Earth.

D.Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.

E.Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.

D我知道错了，因为是代词them指代不清，但是E中nearly 99 percent have vanished怎么可以用have呢?应该用has才对啊

hongyangyan

你认为百分数可以 vanished吗？
这里是个省略
nearly 99% of these creatures have vanished

hazardous

受教了，谢谢你

MarilynR

请NN帮忙分析下B选项吧，为什么错了？

B.Nearly 99 percent of (我只觉得这里少个the) five hundred million different species of living creatures that appeared on Earth have vanished.

谢谢！

jianglxiang

我是这样分析B选项的，that 引导的定语从句的时态和主句的时态不一致，从句过去式，主句现在完成时，逻辑上矛盾，不知道对不对，请高手多多指教

lenghongmin

我觉得你的分析是正确的，因为前面有个99%的概念，所以这里不是所有的动物都灭绝的，那1%的不能用过去式

liexodus

我觉得少了个the 意思上就有差别了，像原句的意思就是整个地球上就有那么five hundred million different species ，但是B选项少了个the，就没有这个总体数量的意思了，就有点整个地球上其中的five hundred million different species ，有99%灭了。。

giflier

我觉得你的分析是正确的，因为前面有个99%的概念，所以这里不是所有的动物都灭绝的，那1%的不能用过去式
lenghongmin 发表于 2010-10-19 20:55

    即使是那1%，出现的动作也发生在过去