求解答 prep07 cr2 的45题！拜谢各位大神

水墨静黯

答案做的对，但是对于整体的逻辑还是弄不懂，由其是第二句话该如何翻译？万分感谢！！！

The recent decline in the value of the dollar was triggered by a prediction of slower economic growth in the coming year.But that prediction would not have adversely affected the dollar had it not been for the government's huge budget deficit, which must therefore be decreased to prevent future currency declines.（？？？？）

Which of the following, if true, would most seriously weaken the conclusion about how to prevent future currency declines?

(A) The government has made little attempt to reduce the budget deficit.

(B) The budget deficit has not caused a slowdown in economic growth.

(C) The value of the dollar declined several times in the year prior to the recent prediction of slower economic growth.

(D) Before there was a large budget deficit, predictions of slower economic growth frequently caused declines in the dollar's value.

(E) When there is a large budget deficit, other events in addition to predictions of slower economic growth sometimes trigger declines in currency value.

水墨静黯

顶一下，感谢各位！！！

sdcar2010

Convert it to If sth, Then sth structure.  You would have understood the logic behind it. It's just a weird way of presenting a formal logic argument.

teddybearj4

我也晕~~

sdcar2010

Premise:
1) The devaluation of the dollar was triggered by a prediction of slower economic growth
2) If there is no government's huge budget deficit,  the prediction alone will not affect the dollar devaluation.

Conclusion: government's huge budget deficit must be decreased to prevent future currency declines

Answer (D) Before there was a large budget deficit, predictions of slower economic growth frequently caused declines in the dollar's value.

If D is true, then premise 2 is wrong since apparently the prediction alone can cause the devaluation.  So D weakens the argument and D is the anwer.


If it were not for the government's budget deficit, the prediction would not have devalue the dollar.
So the deficit is the necessary condition for the devaluation of the dollar.

Logic chain: Prediction adversely affected the dollar --> huge budget deficit.

teddybearj4

终于懂了！！！！！sdcar NN的解释太清楚太N太给力了~~~~~谢谢~

xueluanfei

Thanks a lot. Very clear

guown

thx thxthx

芒椰小丸子

那d答案不就是反对了前提吗？为什么很多题目里反对前提的选项都是错的呢？