比较的问题 og12 -----41 和93

dadadaxia

OG 12 41
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.
A. have to know a great deal more 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 hav 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 economic
答案D .   og 上说知识跟时间不能比较

93.Heating-oil prices are expected to be higher this year than last because refiners are paving about S5 a barrel more for crude oil than thev were last year.

(A)Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were

(B)Heating-oil prices are expected to rise higher this year over last because refiners pay about $5 a barrel for crude oil more than they did

(C)Expectations are for heating-oil prices to be higher this year than last year's because refiners are paying about $5 a barrel for crude oil more than they did

(D)It is the expectation that heating-oil prices will be higher for this year over last because refiners are paying about $5 a barrel more for crude oil now than what they were

(E)It is expected that heating-oil prices will rise higher this year than last year's because refiners pay about $5 a barrel for crude oil more than they did



答案A选项中price与last year比较  



很矛盾。难道than 前面出现时间的话就是时间的比较？？

.Heating-oil prices are expected to be higher this year than last because refiners are paving about S5 a barrel more for crude oil than thev were last year.

(A)Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were

(B)Heating-oil prices are expected to rise higher this year over last because refiners pay about $5 a barrel for crude oil more than they did

(C)Expectations are for heating-oil prices to be higher this year than last year's because refiners are paying about $5 a barrel for crude oil more than they did

(D)It is the expectation that heating-oil prices will be higher for this year over last because refiners are paying about $5 a barrel more for crude oil now than what they were

(E)It is expected that heating-oil prices will rise higher this year than last year's because refiners pay about $5 a barrel for crude oil more than they did



答案A选项中price与last year比较  



很矛盾。难道than 前面出现时间的话就是时间的比较？？

dadadaxia

93题copy了2次，不好意思

iceberg07

41.比现在知道更多的知识，所有应该是they do now，如果只是now，则是时间的比较。
93.higher this year than last，这个是时间的比较。
关键还是要看清到底在比较什么。不知道有没有回答你的问题，可以再多看看讨论帖自己揣摩一下。

OG 12 41
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.
A. have to know a great deal more 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 hav 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 economic
答案D .   og 上说知识跟时间不能比较

93.Heating-oil prices are expected to be higher this year than last because refiners are paving about S5 a barrel more for crude oil than thev were last year.

(A)Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were

(B)Heating-oil prices are expected to rise higher this year over last because refiners pay about $5 a barrel for crude oil more than they did

(C)Expectations are for heating-oil prices to be higher this year than last year's because refiners are paying about $5 a barrel for crude oil more than they did

(D)It is the expectation that heating-oil prices will be higher for this year over last because refiners are paying about $5 a barrel more for crude oil now than what they were

(E)It is expected that heating-oil prices will rise higher this year than last year's because refiners pay about $5 a barrel for crude oil more than they did



答案A选项中price与last year比较  



很矛盾。难道than 前面出现时间的话就是时间的比较？？

.Heating-oil prices are expected to be higher this year than last because refiners are paving about S5 a barrel more for crude oil than thev were last year.

(A)Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were

(B)Heating-oil prices are expected to rise higher this year over last because refiners pay about $5 a barrel for crude oil more than they did

(C)Expectations are for heating-oil prices to be higher this year than last year's because refiners are paying about $5 a barrel for crude oil more than they did

(D)It is the expectation that heating-oil prices will be higher for this year over last because refiners are paying about $5 a barrel more for crude oil now than what they were

(E)It is expected that heating-oil prices will rise higher this year than last year's because refiners pay about $5 a barrel for crude oil more than they did



答案A选项中price与last year比较  



很矛盾。难道than 前面出现时间的话就是时间的比较？？

-- by 会员 dadadaxia (2010/4/14 21:14:55)

sunyan730

有一个帖子专门总结比较的，lz找来看看吧。

dlcjay

楼主你现在明白了么？我也在纠结41 和93 不明白不明白啊

mdautobox

怎么没人回答啊~~
我也不太懂啊~~ 答案说的是 this year 应该和last year 比~~但是总觉得price才是比较的中心啊~

geniealice

看此贴详细解答：

http://forum.chasedream.com/GMAT_SC/thread-537203-1-1.html

lesley0927

怎么没有人觉得A里are paying很奇怪吗？为什么要用进行时呀

光中有影

关于A选项的比较问题：
When comparing time or place, you have two options for structuring the comparison:

1. Joe studies more at night that he does during the day. (The sentence compares Joe to himself.)

2. Joe studies more at night than during the day. (The sentence compares "at night" to "during the day.")

但是对于选项末的were不太理解，不可以是refiners are paying和they paid 来比较么？？

Jagabee

光中有影 发表于 2013-8-12 20:29
关于A选项的比较问题：
When comparing time or place, you have two options for structuring the compari ...

正好在复习这题

个人认为这道题, 比较前部分无论是用refiners are paying, 或 refiners pay, 后半部分无论是用than they were (paying) 或 than they paid, 都是可以成立的. 只不过前面要是说refiners pay, 后面就不能说than they were 而是要把时态补全than they were paying.


考点在于看出其它的语法错误(如rise higher, expectation...etc.), 还有不错误排除正确的语法点.