请问什么时候用the呢？

深高金的zkk

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 99 percent 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.
正确答案E


之前一直没注意过这个考点，因为我觉得不是native就搞不明白。但是这个题目的多个选项都是用the和时态来进行排除的。
期中B选项和D选项没有the就是一个致命的问题，解释为： It should be "THE five hundred million different species," otherwise it sounds like there have been more than five hundred million species, but we're just talking about a particular subset of them which happens to include five hundred million species. Also, the use of the simple past tense for "appeared" is wrong, because this should be present perfect (they have appeared starting in the past and CONTINUING into the present).
但是我不是很能理解这个the的用法，是指定特定的这5 hunderd million。具体如何理解呢？谢谢NN

长丝弓

以下这个帖子非常好，楼主要有耐心看完
https://forum.chasedream.com/thread-218363-1-1.html