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标题: 关于比较结构中的省略OG12 -41 [打印本页]

作者: gracefighting    时间: 2010-7-14 18:55
标题: 关于比较结构中的省略OG12 -41
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.


正确的答案是 would have to know a great deal more than they do now about the social and economic

另外一个答案E would have to know a great deal more than now about the social and economic 被OG认为是拿来和now 做比较了,但是白勇的语法里面说,当主句的主谓和比较中的主谓完全相同时可以完全省略主谓,只留下状语

为什么这个答案不可以被认为是省略了they know呢
作者: semis    时间: 2010-7-14 20:26
是不是因为than要求比较前后形式一样的原因?用they do,代替了前面长长的would have to know.
作者: gracefighting    时间: 2010-7-15 15:57
嗯~~我明白they do 就是把前面更改了个形式~~但是为何同样的主谓可以省略的原则在这个不可以咧。。
作者: semis    时间: 2010-7-21 12:17
比较结构为了保证前后内容的一致,是需要补出来的~
作者: 花子落落    时间: 2010-7-21 13:53
省略的前提是不影响理解,前提是不会产生歧义~~




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