新GWD1--32，38，关于would。

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.

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

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

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

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

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

GWD1-Q38:

Retail sales rose 8/10 of 1 percent in August, intensifying expectations that personal spending in the July-September quarter more than doubled that of the 1.4 percent growth rate in personal spending for the previous quarter.

1. that personal spending in the July-September quarter more than doubled that of

2. that personal spending in the July-September quarter would more than double

3. of personal spending in the July-September quarter, that it more than doubled

4. of personal spending in the July-September quarter, more than doubling that of

5. of personal spending in the July-September quarter, that it would more than double that of

答案选D，E，不明白这里为什么要用would。什么情况下用？谢谢！！

1.虚拟式,不过此题有争议,说选A的也有

2.E这里that到底连的是谁啊?

第一题选B为什么不行呢？

1.我的理解是，将来时态中，一般用will,但当不是很确定此事为发生时用would，比如前面是expect之类的。另外，如果意思是“将需要”时，也用would。

同时，此题也可通过排除法选择。排除economical（节俭的）选项，剩余AD.其中A的than后应补出they do。也就剩D了。

2.答案是B不是E.

第一题支持A，壮语比较没有歧义的情况下可以不补出主谓的

32不懂，我选了B，不过现在同意楼上的说法。另外，不明白为什么要用whould，当初一点没考虑whould。

38选错后回顾，sth happened, sth would happen. 所以B应当correct。

哪位大N介绍一下whould？

多谢！