prep1-19

llxx1985cn

19.       (27995-!-item-!-188;#058&003473)

 

Gortland has long been narrowly self-sufficient in both grain and meat. However, as per capita income in Gortland has risen toward the world average, per capita consumption of meat has also risen toward the world average, and it takes several pounds of grain to produce one pound of meat.  Therefore, since per capita income continues to rise, whereas domestic grain production will not increase, Gortland will soon have to import either grain or meat or both.

 

Which of the following is an assumption on which the argument depends?

 

(A) The total acreage devoted to grain production in Gortland will soon decrease.

(B) Importing either grain or meat will not result in a significantly higher percentage of Gortlanders' incomes being spent on food than is currently the case.

(C) The per capita consumption of meat in Gortland is increasing at roughly the same rate across all income levels.

(D) The per capita income of meat producers in Gortland is rising faster than the per capita income of grain producers.

(E) People in Gortland who increase their consumption of meat will not radically decrease their consumption of grain.

   不明白为什么选E

gonghao

谷物和肉的关系是 ，N多谷物产1斤肉

如果都去吃肉，不吃谷物，那么多出来的谷物可以产肉，以弥补肉的需求，这样又自给自足了。

llxx1985cn

可是结论不是Gortland will soon have to import either grain or meat or both.吗？

意思就是不能自给自足阿？

gonghao

是啊，所以E是not，即否定了我之前说的内容

即不会出现自己自足的情况，需要进口

我之前说的其实是对E的取非

ellina_isme

原文： 多肉会-少谷-要进口

E： 多肉不会导致少谷-不要进口

E反驳了原文

所以选E

这样对吧？

tangying1014

题目问的是assumption.....不是weaken....
income increased leads to consumption of meat increased, but if grain is able to produce the meat,people can satisfied their demand through derease the consumption of grain, so that they don't need to import the meat. That will weaken the argument.because E deny the assumption, it would be the key.