整体3－32

雪落无声

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.

have to know a great deal more than now about the social and economic

have to know a great deal more than they do now about the social and economical

would have to know a great deal more than they do now about the social and economical

would have to know a great deal more than they do now about the social and economic

would have to know a great deal more than now about the social and economical

E 为什么用would? More than 为什么省略 they do

dashasha

这道题，我也选错了。

看了答案，再想想，可能原因是：would是虚拟语气，对将来状态的假设。they do省略比不省略好，因为省略也不会造成弃义。

juan

这题答案是E吗？social and economical 对吗？ 我觉得应该是social and economic 呀。请求帮忙。谢谢了

[此贴子已经被作者于2004-6-2 5:03:34编辑过]

GreenHorse

I go for D also, ecnomic, ecnomical usually means thrifty, right?

If they wanted(?) to develop, they whould have to ...

sounds reasonable

虚拟语气都考啊?

lwei1016

这里应该是social和economic修饰后面的吧.

E的economical应该不对吧.但是D的they do感觉不是很顺口哦.

大牛赶快来指点指点啊啊

RachelWang80

我觉得应该选d,than后面省略也要补上动词，

economical是adj,不能并列

bon

以下是引用GreenHorse在2004-6-2 9:14:00的发言：

I go for D also, ecnomic, ecnomical usually means thrifty, right?

If they wanted(?) to develop, they whould have to ...

sounds reasonable

虚拟语气都考啊?

c巴，更经济的方案阿

雪落无声

给的答案是E

现在看觉得D更好啊

NN来帮忙啊～～

tulipmontreal

同一个主语发出的应该没有后面的THEY DO ,避免歧义

答案应该是E

请牛牛指教

雪落无声

纳economical 不对啊