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标题: 求指导what引导的主语从句 [打印本页]

作者: 板栗在奋斗 时间: 2013-5-21 21:54
标题: 求指导what引导的主语从句
The period when the great painted caves at Lascaux and Altamira were occupied by Upper Paleolithic people has been established by carbon-14 dating, but what is much more difficult to determine are the reason for their decoration,the use to which primitive people put the caves, and the meaning of the magnificently depicted animals.

Ahas been established by carbon-14 dating, but what is much more difficult to determine are
Bhas been established by carbon-14 dating, but what is much more difficult to determine is
Chave been established by carbon-14 dating, but what is much more difficult to determine is
Dhave been established by carbon-14 dating, but what is much more difficult to determine are
Eare established by carbon-14 dating, but that which is much more difficult to determine is

不太明白，为什么后面有3个对象，应该是复数，而前面be动词仍然选择用is

作者: bejamin1111 时间: 2013-5-21 22:43
hey，在manhattan认为subject phrase都是singular的；关于这里的谈论Ron有更详细的解释，非常不错；
FYI ：http://www.manhattangmat.com/forums/painted-caves-at-lascaux-and-altamira-t7994.html

作者: 板栗在奋斗 时间: 2013-5-21 23:07

bejamin1111 发表于 2013-5-21 22:43
hey，在manhattan认为subject phrase都是singular的；关于这里的谈论Ron有更详细的解释，非常不错；
FYI ： ...

well received. many thx.

作者: kiwifoodtown 时间: 2013-5-22 08:50
manhattan里有这么一段定义，摘录出来希望能有帮助：
Sometime the subject of a sentence is an —Ing phrase or even a whole clause. This sort of subject is always singular and requires a singular verb form.

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