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标题: GWD 17-38 [打印本页]
作者: liquid_84 时间: 2006-8-4 00:28
标题: GWD 17-38
Q38:All Y chromosomes in existence today are descended from a single ancestor’s who is thought to have lived about 140,000 years ago.
- a single ancestor’s who is thought to have lived
- a single ancestor’s who was thought to live
- a single ancestor whom it is thought had lived
- the Y chromosome of a single ancestor who is thought to have lived
- the Y chromosome of a single ancestor whom it was thought had lived
请问D的时态该怎么解释啊,前面讨论的贴子也没解释清楚
作者: liquid_84 时间: 2006-8-4 10:15
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作者: 顾风 时间: 2006-8-4 20:58
who is thought说明了是现在最认为。。。
作者: xiangqinzh 时间: 2006-10-20 21:14
下面一段话对D的时态或许有点帮助
这段话是从专业的英文文章下载,
Neanderthals were thought to have died out as modern humans arrived in Europe
当现代人到达欧洲时N已经灭绝了,通常情况会用had died
[此贴子已经被作者于2006-10-20 21:18:01编辑过]
作者: ivymxy 时间: 2009-3-8 22:55
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