标题: GWD 17-38 [打印本页]
作者: alexmingzhu 时间: 2006-10-26 06:39 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: 小腾 时间: 2006-10-26 07:20
who is thought说明了是现在最认为。。。
作者: stevegt 时间: 2006-10-26 19:37
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
| 欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/) |
Powered by Discuz! 7.2 |