LSAT－17－4－10

jiechen

10.   The formation of hurricanes that threaten the Unite States mainland is triggered by high atmospheric winds off the western coast Africa. When abundant rain falls in sub-Saharan Africa, hurricanes afterward hit the United States mainland with particular frequency. Therefore, the abundant rains must somehow promote the ability of the winds to form hurricanes.

Which one of the following arguments contains a flaw that is most similar to one in the argument above?

(A) People who exercise vigorously tend to sleep well. Therefore, people who exercise vigorously tend to be healthy.

(B) Cars drive faster on long city blocks than on short city blocks. Long blocks are thus more dangerous for pedestrians than short blocks.

(C) Many people who later become successful entrepreneurs played competitive sports in college. Therefore, playing competitive sports must enhance a person’s entrepreneur ability.

(D) The blossoms of the chicory plant close up in full sun. Therefore the chicory plant’s blossoms must open up in the dark.（C）

(E) Events in Eastern Europe can affect the political mood in Central America. Therefore liberalization in Eastern Europe will lead to liberalization in Central America.

此题我没太理清它的逻辑关系, 而选项C我觉得是:A=>B推出B=>A,我咋觉得不像呢?

hedonism555

line of reasoning,

since A =>B, and C =>B, so, C=> A.

A, high atmospheric winds off the western coast Africa,   a person’s entrepreneur ability.

B, The formation of hurricanes,   become successful entrepreneurs.

C, abundant rain falls,  playing sports.

here, a common sense should get involved in that ability is not same to final success.

if you cannot reason it directly out of the correct answer, then try another tactic, to rule out the obvious wrong.  for A, B, D, E, they are very different from the original reasoning.

jiechen

这道题目的逻辑推理并不完全相同,只是 similiar,我觉得我过于追求相同了,另外我对hedonism555的解答里的一句话没太理解清楚:here, a common sense should get involved in that ability is not same to final success

hedonism555

a person’s entrepreneur ability.  ==> A

become successful entrepreneurs ==> B

playing sports==> C

then A =>B, and C =>B, so, C=> A.

jiechen

Many people who later become successful entrepreneurs played competitive sports in college.  

B:become successful entrepreneurs    C:played competitive sports

???   C =>B

hedonism555

right, early participate in sports (C) contributes later successful entrepreneur(B).

jiechen

ok ,thanks