大全-I-3

Economies in which a high percentage of resources are invested in research and development show greater growth in the long run than do those in which resources are channeled into consumption. Japanese workers spend a higher percentage of their income investing in research and development than do American workers.

To grow as fast as Japan has in the past three decades, the United States must change the tax code in order to encourage savings and investment and discourage debt.

Which of the following, if true, tends to weaken the argument?

(A) Japanese research is more focused on consumers than is research by American firms.

(B) Class mobility, highly valued in American culture, is encouraged by a growing rather than a stagnant economy.

(C) Studies have shown that countries with high consumption rates prosper in the short run.

(D) Proposed changes to the tax code could involve strict limits on the deductability of interest, and increased allowance for research.（E）

(E) Because a decreasing percentage of the United States is under 40, an age when savings are traditionally low, the savings rate will increase without changes to the tax code.

答案是E,  可是我读不懂D, 不知这句话的意思是什麽,

关键是increased 作定语, the deductibility of interest and increased allowance 都被limited, 还是increased当谓语动词表示limit on deductibility of interest 并且增加了allowance of investment. (有点象讨论语法题)

另外limits on the deductibility of interest是什麽含义呀?

这题好像没有你讲的那么复杂

既然是对原文的一个削弱，那只要找出两个类比之间的不可比性就可以了

e中解释的就很清楚，表明了美国和日本本来就是不一样的，所以就算用了日本的政策，美国也不一定好的了

d说的Proposed changes to the tax code could involve strict limits on the deductability of interest, and increased allowance for research

这种对税收法规的变动会限制利率的变动以及对研究津贴的增加

那个逗号原文应该是没有的

多谢番茄炒蛋的解释,不过若是象你那样翻译D选项, Tax code change会限制研究津贴的增加, 那不正好构成了对原文的削弱吗?原文说美国想用tax code change来增加存款和投资,但D选项说即使tax code change也不能增加研究投入.

希望继续讨论...

原文中有几个概念是没有相关联的，你大概这里出了一些问题，自做主张的把他们认为是一件事情，这是逻辑中的大忌

encourage savings and investment and discourage debt.

spend a higher percentage of their income investing in research and development

鼓励多存钱并不意味着就一定会多投资去研究

而且d中说的并没有直接削弱原文的任何一个部分，只是把你自己推理出来的给削弱了，在GMAT中这不被称为对原文的削弱。

D说税收政策的改变会对研究的投资增加进行限制

可是原文中说的改变税收的目的是增加存款，减少借款

这个怎么能算是削弱呢，呵呵，而且就算是存款比例较低，它还可以通过较高的higher percentage of their income investing in research and development 来提高总的研究投资额。

e选项应该是一个比较常见的选项，以后碰到类似的，选e这种大都没什么问题的

终于明白了，多谢番茄炒蛋！看来不能多想更不能按自己附加的逻辑想哦。。。

(E) Because a decreasing percentage of the United States is under 40, an age when savings are traditionally low, the savings rate will increase without changes to the tax code.

这一句话是什么意思？请NN帮忙翻译一下。

偶不是牛，偶觉得这句话意思是“在美国40岁以下人口正在变少，传统上40岁以下的任储蓄比较低，所以即使不改变税的政策，储蓄率也会变高的”

thx. dashasha.

可是a decreasing percentage of the United States 美国的正在降低的百分比

an age是指40，还是under 40？