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标题: 大神帮忙解释一下 [打印本页]

作者: deibo 时间: 2015-9-25 17:24
标题: 大神帮忙解释一下

Q39:

Five hundred million different speciesof living creatures have appeared on Earth, nearly 99 percent of themvanishing.

Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.

Answer: E

此题appear的时态一定要用完成时吗？

作者: Gil_0_ 时间: 2015-9-26 01:01
是的，更準確地說，是因為have vanished 使用了完成時，所以appear必須同樣使用完成時以表示appear出現在vanish之前

作者: deibo 时间: 2015-10-6 18:02
有道理，谢谢！回复的太晚了

作者: MissSugarW 时间: 2019-6-18 00:46
并不是Appear在vanish之前吧，是因为还有1%的物种仍然appear才用的完成时。

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