标题: 关于时态 (GWD15-Q39 or T-4-Q39 -- edited by aeoluseros) [打印本页] 作者: kun861010 时间: 2009-12-17 07:14 标题: 关于时态 (GWD15-Q39 or T-4-Q39 -- edited by aeoluseros) 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.
答案是b。我选的是e，如果把e里面的have appeared换成appeared，是不是能够正确呢？ 作者: aeoluseros 时间: 2009-12-17 08:18
我同意E. 1.B里面最基本的错误是five hundred前面没有加the， 2.have vanished跟主语99 percent太远。 3.appeared用have appeared更加合适，说明了一种物种不断产生，不断消亡的情况。作者: cynthia627 时间: 2009-12-17 23:56
啊！这道题我也不会！版主大人，为什么要加the呢？是因为后面的that从句还是of？如果是因为that从句，为什么不是在creatures前面加the？谢谢！！！作者: kun861010 时间: 2009-12-18 02:04
the是指特定的一个范围里面。这里特指500，不是说只有500个物种，是其中的500个物种。作者: aeoluseros 时间: 2009-12-18 02:24
er...不是500个物种...是five hundred million... five hundred million different species of living creatures是一个整体，所以要加the是加在前面... 这里的the不是特指，其实也是一种泛指。泛指有时候为了划归具某种特性的事物，前面是要用the的。这里这些事物的特性就是that have appeared on Earth.作者: emily_z0301 时间: 2011-2-27 23:19
这道题到底选什么呀，我怎么还看到有答案给的是E呀？