享受生活，享受GMAT-明天该说再见了吧，亲爱的吉迈特mm

yakev6

贴到很tricky的题目。
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.
很恶心的条件结论型，条件还被倒装藏起来了，且修饰语中还有个therefore伪装成结论。GMAC尼玛呀~！@@#￥！@#￥

背景：美元被经济增长预期放缓所拖累。

结论：如果没有政府的巨额赤字(该赤字必然要降低来避免将来对美元的影响)，该预测将不会对美元产生负面影响。
条件结论型，weaken的方法是条件发生，结论不发生，即必要条件不必要。
选项D：在产生巨额赤字之前，经济放缓的预期经常导致美元的贬值。
选项C：当有大量赤字时，其他事件一同经济放缓的语气引起美元贬值。

上邪

贴到很tricky的题目。
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.
很恶心的条件结论型，条件还被倒装藏起来了，且修饰语中还有个therefore伪装成结论。GMAC尼玛呀~！@@#￥！@#￥

背景：美元被经济增长预期放缓所拖累。

结论：如果没有政府的巨额赤字(该赤字必然要降低来避免将来对美元的影响)，该预测将不会对美元产生负面影响。
条件结论型，weaken的方法是条件发生，结论不发生，即必要条件不必要。
选项D：在产生巨额赤字之前，经济放缓的预期经常导致美元的贬值。
选项C：当有大量赤字时，其他事件一同经济放缓的语气引起美元贬值。

-- by 会员 yakev6 (2012/5/11 18:08:56)

PP07的题 偶没记错的话、、偶当时选的E 。。嘻嘻。
背景大叔写了嘻嘻
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.

if there had not been for government's budget deficit, prediction would not have adversely affected the dollar
therefore . budget deficit must be decreased ---to prevent future dollar declines

政府不缺钱--钱币不贬值
因此：政府不能缺钱

D;就算政府不缺钱 钱币也贬值

这个题恶心在读题上面

CCcarol

时差党伤不起哇~！！

yakev6

贴到很tricky的题目。
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.
很恶心的条件结论型，条件还被倒装藏起来了，且修饰语中还有个therefore伪装成结论。GMAC尼玛呀~！@@#￥！@#￥

背景：美元被经济增长预期放缓所拖累。

结论：如果没有政府的巨额赤字(该赤字必然要降低来避免将来对美元的影响)，该预测将不会对美元产生负面影响。
条件结论型，weaken的方法是条件发生，结论不发生，即必要条件不必要。
选项D：在产生巨额赤字之前，经济放缓的预期经常导致美元的贬值。
选项C：当有大量赤字时，其他事件一同经济放缓的语气引起美元贬值。

-- by 会员 yakev6 (2012/5/11 18:08:56)

PP07的题 偶没记错的话、、偶当时选的E 。。嘻嘻。
背景大叔写了嘻嘻
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.

if there had not been for government's budget deficit, prediction would not have adversely affected the dollar
therefore . budget deficit must be decreased ---to prevent future dollar declines

政府不缺钱--钱币不贬值
因此：政府不能缺钱

D;就算政府不缺钱 钱币也贬值

这个题恶心在读题上面

-- by 会员 上邪 (2012/5/11 23:26:28)

小上邪，大叔是这么理解的，therefore be decreased to prevent future currency declines，应该不是结论，只是修饰语，修饰budget deficit的，至于结论我认为是：But that prediction would not have adversely affected the dollar
倒装呢找的很对，if there had not been for government's budget deficit, prediction would not have adversely affected the dollar
因此，该结论应该是条件结论型
        S-->N         contrapositive     (~)N-->(~) S
没有赤字-->货币不会贬值，    换言之,货币贬值-->赤字
找一个选项来weaken 必要条件即可。D选项说的是，没有赤字，贬值了。恰好说明必要条件不成立，充分条件也可以为真。
这道题的难度就在于倒装吧条件藏起来了，另外在修饰语中有个therefore让人误以为那是结论。Tricky one...

babybearmm

这题选D么？
我发觉我看英文还轻松，看中文很痛苦，你的讨论不大看得懂.....主要是所有经济学一开始都是用英文学的-_-

贴到很tricky的题目。
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.
很恶心的条件结论型，条件还被倒装藏起来了，且修饰语中还有个therefore伪装成结论。GMAC尼玛呀~！@@#￥！@#￥

背景：美元被经济增长预期放缓所拖累。

结论：如果没有政府的巨额赤字(该赤字必然要降低来避免将来对美元的影响)，该预测将不会对美元产生负面影响。
条件结论型，weaken的方法是条件发生，结论不发生，即必要条件不必要。
选项D：在产生巨额赤字之前，经济放缓的预期经常导致美元的贬值。
选项C：当有大量赤字时，其他事件一同经济放缓的语气引起美元贬值。

-- by 会员 yakev6 (2012/5/11 18:08:56)

babybearmm

我跟你的看法有点不一样，我觉得therefore那里就是结论。

premise 1: depreciation of $   <----  pred of slow econ growth
premise 2: but pred of slow econ growth is NOT enough to lead to depreciation of $ IF not for huge deficit
  in other words: huge deficit is a prerequisite for premise 1.
Conclusion: to prevent future depreciation of $, deficit must be decreased.

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

See? the question stem suggests that the "therefore" part is the conclusion.
To weaken the conclusion "to prevent future depreciation of $, deficit must be decreased", we can show that pred of slow econ growth can lead to depreciation of $ even without causing huge deficit. In this case deficit is a non-issue, and therefore the conclusion is weakened.
This approach is to attach premise 2 directly, and in turn attack the conclusion.

babybearmm

这题的逻辑很像化学反应。

Analogy:
premise 1: production of sulfur dioxide (an air pollutant): S + O2 ------> SO2
premise 2: the reaction won't happen without a catalyst X
Conclusion: to prevent the production of SO2, we must isolate catalyst X.

Weaken:
attack premise 2, even without catalyst X, the reaction can still occur in some other ways (perhaps by some other catalyst or some specific T/P conditions).
- This means that catalyst X is NOT even worthwhile, regarding our goal - the prevention of SO2 production.
-This is what Choice D says.

Choice E: "if catalyst X is present, other stuffs can also produce SO2."
If this is true, we will be more convinced that catalyst X is important for the production of SO2, and thus we will support the author's conclusion that "to prevent the production of SO2, we must isolate catalyst X."
Therefore, Choice E is essentially a strengthener, not a weakener.

babybearmm

这题的逻辑很像化学反应。

Analogy:
premise 1: production of sulfur dioxide (an air pollutant): S + O2 ------> SO2
premise 2: the reaction won't happen without a catalyst X
Conclusion: to prevent the production of SO2, we must isolate catalyst X.

Weaken:
attack premise 2, even without catalyst X, the reaction can still occur in some other ways (perhaps by some other catalyst or some specific T/P conditions).

-- by 会员 babybearmm (2012/5/12 5:20:18)