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标题: GWD-1-Q32请高人指点 [打印本页]

作者: colette 时间: 2005-11-25 10:10
标题: GWD-1-Q32请高人指点

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

答案给的E，有人选B，我怎么觉得应该是A呢？

这里考的三个点：时态，比较和形容词，应该重点在第一和第三吧？原来的答案E也没有考虑比较的问题。

作者: running 时间: 2005-11-25 16:59

economical 通常指节约的 not wasteful or extravagant，也可以=economic; 我倾向于选择social and economical，至少形式上对称。than 后面补充完整应该是than they now know, 不应该是than they know now, 因为后面紧跟着about. would have 是虚拟语气而已。

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