求解 新prep 破解 79. (32057-!-item-!-188;#058&006758)

shizhe

79.(32057-!-item-!-188;#058&006758)



The country of Baurisia has, until now, been self-sufficient in both grain and meat.However, with growing prosperity in Baurisia has come a steadily increasing per capita consumption of meat, and it takes several pounds of grain to produce one pound of meat.Therefore, since per capita income in Baurisia is almost certain to rise further but increases in domestic grain production are highly unlikely, Baurisia is soon likely to become an importer of grain.

Which of the following, if true, most seriously weakens the argument?

A. When people increase their consumption of meat, they also tend to increase their consumption of grain.

B. The per capita consumption of meat in Baurisia is roughly the same across all income levels.

C. Per capita consumption of meat has not increased substantially in recent years in those countries from which Baurisia is likely to import meat.

D. It is more economical for Baurisians to import meat than grain.

E. During Baurisia's years of growing prosperity, the country's population has remained relatively stable.

答案选D

我觉得这个答案像有点问题 ... 我觉得选B 。。。大牛们帮帮忙 .....

sure1301

个人觉得是这样的
1.文中已将“with growing prosperity in Baurisia has come a steadily increasing per capita consumption of meat”当作结论
2.B选项是说各个收入层的肉消费量差不多但这可以有两个问题：
（1）假设两个人A挣100块，B挣200块，他们都消费1斤肉 但这并不意味着当A挣200块，B挣300块的时候他们依然消费1斤肉，可以更多
（2）此处用的是roughly,没有说exactly the same，所以这个反驳程度不够
3.题目是要选weaken argument 的，而argument 是说因为消费的肉增加要进口谷子，weaken自然是说不进口谷子，而D选项说进口肉更好，及说明不应进口谷子，符合题目要求

zoemiaoer

不是大N~
我是这么想的，题目的意思是说人均肉的消费增长了，然而grain的生产没有增加，所以说B要进口grain.结论就是肉的消耗增加使得grain不足从而进口。D选项的意思是B进口grain 更加economical.是他因削弱。削弱结论。
而B：The per capita consumption of meat in Baurisia is roughly the same across all income levels，有点削弱前提，没有起到直接削弱结论的作用。题干说人均工资长了，grain production没有增长，于是就得出结论B要进口grain,题目隐含说income的增长会使meet consumption增长。B选项似乎是在削弱这一暗含的结论。没有D好。个人认为~

gracezz

楼上说得同意，但是是进口meat比grain要经济哈，所以这个国家才会去进口meat而不会去进grain，他因削弱

kinghonglee

but why the answer is "c" actually?

fanaf821

answer is D
搜了一下看到没有很好的解释 就来说下
个人认为是直接削弱结论
原文逻辑链 per capita imcome rises 而 domestic grain production 不增长 => B soon likely to import grain
所以这里的economic 因素导致了 import grain这个结论的不存在、不可行 故削弱了结论
而所谓他因削弱，应该是对原因唯一性的削弱 for example, B国人都不吃grain了 而不是因为原文讲的原因 这时候也起到削弱作用

448258130

看一下那个看一下

y542041743

为什么C不正确呢？如果Baurisia进口肉的国家肉的消费量没有增长就有多余的肉可以出口到Baurisia

shaopeiyuan0511

C. Per capita consumption of meat has not increased substantially in recent years in those countries from which Baurisia is likely to
C是无关，意思是B国进口肉的国家人均消费肉没有增加。无关。