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标题: 问问呢问（GWD1-Q32） [打印本页]

作者: aphrodite1990 时间: 2010-11-27 21:29
标题: 问问呢问（GWD1-Q32）
GWD1-Q32:
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility. D
A. have to know a great deal than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and e
D中为什么是 than they do now 呢不是应该是than they would now 吗多谢啦

作者: aphrodite1990 时间: 2010-11-27 23:52
upupup

作者: aphrodite1990 时间: 2010-11-27 23:53
帮帮我看看吧~~同志们啊

作者: aphrodite1990 时间: 2010-11-28 18:25
upupupupupuuppup

作者: aphrodite1990 时间: 2010-11-28 18:25
nn们啊快快出现啊~

作者: aeoluseros 时间: 2010-11-29 08:36
do指代的是know。
其次would have to或者have to其实是一体的，整体可以看作一个auxilary.
在这个题目里面，不推荐用would have to和have to的区别来判题，因为区别太小。

作者: aphrodite1990 时间: 2010-12-1 01:15
(

do指代的是know。
其次would have to或者have to其实是一体的，整体可以看作一个auxilary.
在这个题目里面，不推荐用would have to和have to的区别来判题，因为区别太小。

-- by 会员 aeoluseros (2010/11/29 8:36:15)

我还是有点不太懂诶55555
可是我看到白勇书上面写的是
比较从句动词短语使用助动词（have，has，had，will）或情态动词(Can could may should)+v 的形式时比较从句省略v保留助动词或情态动词啊那这里的would不是要保留吗？

作者: stellina 时间: 2010-12-1 01:31

(

-- by 会员 aeoluseros (2010/11/29 8:36:15)

-- by 会员 aphrodite1990 (2010/12/1 1:15:38)

我理解的是，这里有个小虚拟，would have to是他们还没有做的但是应该做的（实际没做），they do now是他们现在做的（实际做了）。。所以这里不要加would。。

关键从语义上来理解啦。。白勇的讲解只是最基本的，已经不太适合现在GMAT语法出题趋势了。。

作者: aphrodite1990 时间: 2010-12-2 14:20
这样说不用看白勇哦。。~~

作者: tuscan 时间: 2010-12-3 00:48
would have to,虚拟语气

作者: aphrodite1990 时间: 2010-12-3 19:22
ooo1 THX LALALLA

作者: maratderk 时间: 2011-3-30 09:25
弱弱的问：那就是说在这道题里，would不是情态动词， have不是助动词吗

作者: carolfeng 时间: 2011-4-6 11:10
为什么一定要补充DO呢？

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