反前提也可以成为正确选项？prep07的45题，纠结！

小甜菜的宝宝 · 发表于 2011-5-10 21:29:04

p2-cr 45.(33087-!-item-!-188;#058&007558)

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.

小甜菜的宝宝 · 发表于 2011-5-10 21:30:20

正确答案是D，但是和前提条件But that prediction would not have adversely affected the dollar had it not been for the government's huge budget deficit相违背啊~~这也可以对？

小甜菜的宝宝 · 发表于 2011-5-10 22:21:42

要不削弱题型可以反前提？待求证

kikisunflower · 发表于 2011-5-10 22:26:53

楼主看一下问题里面，说the conclusion about how to prevent future currency declines

说明这句话：that prediction would not have adversely affected the dollar had it not been for the government's huge budget deficit，不是前提，是conclusion

小甜菜的宝宝 · 发表于 2011-5-11 14:47:36

恩，谢谢谢谢。明白啦这个是conclusion！
但是，在削弱题型中是否可以反前提呢，我好像也没听说不能反。结论题和assumption题那种是不能反的，其他的呢？

kikisunflower · 发表于 2011-5-11 14:57:44

和写AW,AI的时候一样，前提是不能攻的，攻的是逻辑链

小甜菜的宝宝 · 发表于 2011-5-11 15:10:14

但是有一种逻辑缺陷是数据有问题，还是直接说前提错了吧。就是不知道除了数据以外其他前提可不可以反。我听有人讲削弱题有一种断桥就是直接断了一个前提，不晓得对不对

小甜菜的宝宝 · 发表于 2011-5-11 20:50:23

我找到反例啦，就是削弱题型也不允许违背前提
9. (24749-!-item-!-188;#058&001426)

Scientists are discussing ways to remove excess carbon dioxide from the atmosphere by increasing the amount that is absorbed by plant life. One plan to accomplish this is to establish giant floating seaweed farms in the oceans. When the seaweed plants die, they will be disposed of by being burned for fuel.

通过增加吸收二氧化碳的植物来减少空气中的二氧化碳。有一种方法是种植海藻，等海藻死了可以燃烧作燃料。
文章推理：海藻可以减少二氧化碳
Which of the following, if true, would indicate the most serious weakness in the plan above?

(A) Some areas of ocean in the Southern Hemisphere do not contain sufficient nutrients to support large seaweed farms.
反对前提，前提已经说了可以种植。
(B) When a seaweed plant is burned, it releases an amount of carbon dioxide comparable to the amount it has absorbed in its lifetime.
他因反对结论，虽然海藻可以吸收二氧化碳，但是它燃烧得时候二氧化碳又释放出来了
(C) Even if seaweed farms prove effective, some people will be reluctant to switch to this new fuel.
和结论是否减少空气中的二氧化碳无关
(D) Each year about seven billion tons of carbon dioxide are released into the atmosphere but only about five billion tons are absorbed by plant life.
只是在描述一个事实，和海藻计划无关，虽然没有完全消除，但也说明海藻计划是可以减轻含量的
(E) Seaweed farms would make more money by farming seaweed to sell as nutritional supplements than by farming seaweed to sell as fuel.
和海藻用途无关，并没有提到关键词二氧化碳

abc268100 · 发表于 2011-7-30 18:24:14

这个是缺陷题哦

反前提也可以成为正确选项？prep07的45题，纠结！

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