OG12 CR 40

girlwithwings

40. In the last decade there has been a significant
decrease in coffee consumption. During this same
time, there has been increasing publicity about the
adverse long-term effects on health of the caffeine in
coffee. Therefore, the decrease in coffee consumption
must have been caused by consumers’ awareness of
the harmful effects of caffeine.

Which of the following, if true, most seriously calls into
question the explanation above?
(A) On average, people consume 30 percent less
coffee today than they did 10 years ago.
(B) Heavy coffee drinkers may have mild withdrawal
symptoms, such as headaches, for a day or so
after significantly decreasing their coffee
consumption.
(C) Sales of specialty types of coffee have held
steady as sales of regular brands have declined.
(D) The consumption of fruit juices and caffeine-free
herbal teas has increased over the past decade.
(E) Coffee prices increased steadily in the past
decade because of unusually severe frosts in
coffee-growing nations.
OA: E
请问C为何错？

我要喝可乐

lonelyorchid 发表于 2011-1-2 18:27
楼主，请注意原文的逻辑，原文得出的结论在therefore之后，即，寻找的是咖啡销量减少的原因。而不是咖啡销 ...

正解！！

我要喝可乐

个人遇见：
题目结论：咖啡消费量下降是由于咖啡因的坏影响。
问削弱。结论是：因果型，那么削弱无非就是：无因无果，有因无果，有果无因，他因，因果倒置等。
而选项E正好是其他原因可能导致消费量下降的。就是价格上升了。

醒醒Shine

wtylys 发表于 2011-7-11 11:22
但是答案“e”，价格上升一定会导致销量下降吗？

我一开始也有这个疑问。
但是仔细读问题：Which of the following, if true, most seriously calls into question the explanation above?
它只问了哪个选项最能引发原命题的质疑，并么有说让找到充要条件的原因。

而E选项提出了price这一个第三种可能。
GMAC真的出题很严谨，细细体会ing。。

Apolloemma

lonelyorchid 发表于 2011-1-2 18:27
楼主，请注意原文的逻辑，原文得出的结论在therefore之后，即，寻找的是咖啡销量减少的原因。而不是咖啡销 ...

支持这个解释。

Apolloemma

Bad news --> decrease of coffee consumption

C  sales of one specific coffee remains steady
D
E Price increase

Sales 不等于 consumption.

apaso

我也是在C与E之间徘徊。一开始是这样想
原文说Therefore, the decrease consumption must have been caused by consumers’ awareness of the harmful effects of caffeine.
这种武断性结论，不是只要找个反例，（数学题里找具体数字代入不正是根据这样的话才进行的选取吗？）就可以翻盘了吗？只要有一个客人意识到危害，还继续购买咖啡，这个结论就是不对的啊。
再说E，谁说价格涨了，销量就低了？原文没有说coffee是必需品还是普通商品，还是吉芬商品，所以也不成立啊
======
再重理下，贫穷 是由 懒惰引起的
C. 懒惰的二狗买了张彩票中了5亿。
E. 贫穷 是由 疾病引起的。
C是有种引申即使意识到危害，由于其他原因还去购买咖啡
而E就更直接的去削弱。虽然理由很烂，但是章法对路。

ylyysy123

不太理解#8对C和D的解释哟，og说c是假设特殊咖啡不含咖啡因不受政策约束销量未减，意思不就是意识到健康的重要。对D的解释是为避免不利影响选择健康的替代品。8楼的解释啥意思呀，到底什么时候用无关判断，谢谢各位拉。。。

wtylys

但是答案“e”，价格上升一定会导致销量下降吗？

wtylys

楼上的正解