LSAT-3-4-20

daoying

20.   The rise in the prosperity of England subsequent to 1840 can be attributed to the adoption of the policy of free trade, since economic conditions improved only when that policy had been implemented.
The reasoning in the above argument most closely parallels that in which one of the following?
(A) An exhaustive search of the marshes last year revealed no sign of marsh hawks, so it can be assumed that a similar search this year would reveal equally little sign of that kind of bird.
(B) Building a circular bypass road around Plainfield probably helped the flow of local traffic in the town center, since a circular bypass road generally cuts a city’s through traffic markedly.
(C) Before the banks raised their interest rates, people on average incomes could almost afford a mortgage for an amount twice their salary. Hence the rate increase has now put mortgages beyond their reach.
(D) Since the improvement in the company’s profitability began to occur after the vice president’s new morale-building program was put in place, that program can be credited with the improved result.
(E) The extinction of the dinosaurs was brought about by an asteroid colliding with Earth, so their extinction could not have come before the collision.
我的思路是这样的：
题干中：adoption of policy -->prosperity，而adoption of policy -->economic conditions improved，潜在的：economic conditions improved -->prosperity
而B中:bypass road -->the flow of local traffic，而bypass road -->cuts a city’s through traffic，潜在的：cuts a city’s through traffic-->the flow of local traffic
所以我选了B，但正确答案是D，我实在看不出来与题干哪点相似。请NN指点一下.

founder

我想通过语气可以将B 排除,
Building a circular bypass road around Plainfield probably helped the flow of local traffic in the town center, Since
D matched perfectly with the orginal passage:
Two things happened in the same time, then One can be attributed to the other's cause

assfgrtrtr

题目的逻辑错误是因为因为一个事物（自由贸易）出现后另一个事物(经济繁荣）出现，就把二者归为因果关系。D类似于这种推理。故正确。选项B是真正得因果关系

himba

是不太明白。
提到的语气问题有点道理，由此排除B项我认为可以接受。
但是为什么选D？yangxiaogang同学的解释我觉得不够充分。
翻译题干：1840年以后英格兰的繁荣可以归功于自由贸易政策的实施，因为
在政策实施之后，经济条件就有所改善。
这里有三个元素：繁荣、自由贸易政策和经济条件改善。前半句说结果：政策——>繁荣，后半句说原因：政策——>经济条件改善，潜在的：经济条件改善——>繁荣。
而D项翻译是：由于副总裁提高士气的措施实施后，公司盈利能力就开始提高，所以这些措施的实施应该被视作是盈利能力提高的原因。
这里只有两个元素：措施——>盈利能力提高
从这点看D项的推理过程与题干并不相同。难道仅仅是因为时间顺序的推导吗？
另外，这类题NN们应该有一个明确的解题思路吧？解题的关键究竟在哪里？请指点一下，否则碰上类似的题我可能还是会错的。

daoying

谢谢大家的指点！！！！

johncheng

NN!!!!!!!!!!!!!

apply1

ding!!!!!!

steveyangxt

马上让我想起AWA中的ARGUMENT,after this thus because of this,典型的correlation 跟cause-effect relation 搞混了。都是时间上先后的逻辑上不一定有因果关系。