求OG 13 SC 部分的42题

zuoanyuyu

在42题中为什么是假设的情况来用虚拟语气，而不是看成是为了达到某一个目的而要求的条件呢？

DUKB24

post the whole problem plz

thx a lot

Annapp

post the whole problem plz

thx a lot

-- by 会员 DUKB24 (2012/10/23 23:05:50)

42.       To develop more accurate population forecasts, demographers have toknow a great deal more than now about the social and economic determinantsof fertility.

(A)       have to know agreat deal more than now about the social and economic
(B)       have to know agreat deal more than they do now about the social and economical
(C)       would have to knowa great deal more than they do now about the social and economical
(D)       wouldhave to know a great deal more than they do now about the social and economic
(E)        would have to knowa great deal more than now about the social and economic


这道题我也不太明白，可以理解为To do表示目的，暗示还没实现所以要用would have to know么？
虚拟语气头疼，不太明白，求教大牛

DUKB24

post the whole problem plz

thx a lot

-- by 会员 DUKB24 (2012/10/23 23:05:50)

42.       To develop more accurate population forecasts, demographers have toknow a great deal more than now about the social and economic determinantsof fertility.

(A)       have to know agreat deal more than now about the social and economic
(B)       have to know agreat deal more than they do now about the social and economical
(C)       would have to knowa great deal more than they do now about the social and economical
(D)       wouldhave to know a great deal more than they do now about the social and economic
(E)        would have to knowa great deal more than now about the social and economic


这道题我也不太明白，可以理解为To do表示目的，暗示还没实现所以要用would have to know么？
虚拟语气头疼，不太明白，求教大牛

-- by 会员 Annapp (2012/10/25 23:21:01)

just quote from my excel：


you got two ways to understand this problem：


1.The issue is that this sentence is a hypothetical/conditional:


To develop more accurate population forecasts


We could reword this as "If we wanted more accurate forecasts, demographers..."
In a conditional construction, we need the "would". Look at how it would work in a NON-conditional:


To develop accurate population forecasts, demographers have to know a great deal more...


See how, in that example, without the "more," we're just talking about a fact (how forecasts are developed accurately)? But with the conditional, we need the complete conditional construction, with "would."




2. Ron：


i think this sentence makes sense with either "would have to" or "have to". there's a slight rhetorical difference


("would have to" carries the connotation that these forecasts are just hypothetical and don't actually have to be developed, or that at least it's not important, while "have to" implies that these forecasts are important and have to be made), but you don't have to make such rhetorical distinctions on the exam.


in this case, you don't have to, since both choices involving "have to" (without "would") are wrong for other reasons.

slr257

economic和economical可以排除两个。than后面用now可以排除两个，剩下的就是答案。跟虚拟语气没关系。OG的解释过于简单。

lunvs

post the whole problem plz

thx a lot

-- by 会员 DUKB24 (2012/10/23 23:05:50)

42.       To develop more accurate population forecasts, demographers have toknow a great deal more than now about the social and economic determinantsof fertility.

(A)       have to know agreat deal more than now about the social and economic
(B)       have to know agreat deal more than they do now about the social and economical
(C)       would have to knowa great deal more than they do now about the social and economical
(D)       wouldhave to know a great deal more than they do now about the social and economic
(E)        would have to knowa great deal more than now about the social and economic


这道题我也不太明白，可以理解为To do表示目的，暗示还没实现所以要用would have to know么？
虚拟语气头疼，不太明白，求教大牛

-- by 会员 Annapp (2012/10/25 23:21:01)

just quote from my excel：


you got two ways to understand this problem：


1.The issue is that this sentence is a hypothetical/conditional:


To develop more accurate population forecasts


We could reword this as "If we wanted more accurate forecasts, demographers..."
In a conditional construction, we need the "would". Look at how it would work in a NON-conditional:


To develop accurate population forecasts, demographers have to know a great deal more...


See how, in that example, without the "more," we're just talking about a fact (how forecasts are developed accurately)? But with the conditional, we need the complete conditional construction, with "would."




2. Ron：


i think this sentence makes sense with either "would have to" or "have to". there's a slight rhetorical difference


("would have to" carries the connotation that these forecasts are just hypothetical and don't actually have to be developed, or that at least it's not important, while "have to" implies that these forecasts are important and have to be made), but you don't have to make such rhetorical distinctions on the exam.


in this case, you don't have to, since both choices involving "have to" (without "would") are wrong for other reasons.

-- by 会员 DUKB24 (2012/10/25 23:32:34)

D中的they do这个do为什么是指代know啊？
如果B中的economical改成economic，B中的do可不可以理解成have的指代？谢谢

兰心寒

lunvs 发表于 2012-11-14 18:40
post the whole problem plzthx a lot-- by 会员 DUKB24 (2012/10/23 23:05:50)

42.   &nbs ...

我理解，如果是指代have，B应该改成：have to know a great deal more than they have to now about the social and economic.
欢迎拍砖

dennis2k

看了Ron大神的解释我就放心了

ZJPt找到M

版主和5楼解释的很好了
这题的重点不在虚拟，而是比较对象是否一致，还有词义的表达