两道lsat求助

david_348

How do the airlines expect to prevent commercial plane crashes? Studies have shown that pilot error contributes to two-thirds of all such crashes. To address this problem, the airlines have upgraded their training programs by increasing the hours of classroom instruction and emphasizing communication skills in the cockpit. But it is unrealistic to expect such measures to compensate for pilots’ lack of actual flying time. Therefore, the airlines should rethink their training approach to reducing commercial crashes.

Which one of the following is an assumption upon which the argument depends?

(A) Training programs can eliminate pilot errors.

(B) Commercial pilots routinely undergo additional training throughout their careers.

(C) The number of airline crashes will decrease if pilot training programs focus on increasing actual flying time.

(D) Lack of actual flying time is an important contributor to pilot error in commercial plane crashes.（D）

(E) Communication skills are not important to pilot training programs.

我选的是a；

        “If the forest continues to disappear at its present pace, the koala will approach extinction,” said the biologist.

“So all that is needed to save the koala is to stop deforestation,” said the politician.

Which one of the following statements is consistent with the biologist’s claim but not with the politician’s claim?

(A) Deforestation continues and the koala becomes extinct.

(B) Deforestation is stopped and the koala becomes extinct.

(C) Reforestation begins and the koala survives.

(D) Deforestation is slowed and the koala survives.（B）

(E) Deforestation is slowed and the koala approaches extinction.

请问该题该如何解答？e为何不对

soaring

发到lsat区吧

p200002

第一题比较简单,结论是课堂教学对减少飞行员犯错误无效,理由是没有实践.那么假设就是缺少实践使飞行员犯错误造成飞行事故.

Bensontuo

david_348 发表于 2004-11-30 17:45
How do the airlines expect to prevent commercial plane crashes? Studies have shown that pilot error  ...

1.

Spot the question type: Necessary assumption

Core of the argument

C - A should rethink their training approach to reduce commercial crashes

why ? because no measure of the training programs -1 increasing the hours of classroom instruction and 2 emphasizing communication skills in the cockpit can compensate lacks of actual flying time.

So, based on the argument, lacks of actual flying time must be the core of pilot error, contributing to 2/3 of all crashes.

Answers.

a. Training program " does not " eliminate pilot errors. It does not need to eliminate the pilot errors, all. we want to be sure of is if the the training approach should be rethought

b. commercial pilots does not routinely undergo additional training throughout their careers. - Non relevant

C. The " numbers " of airline crashes will " not decrease " if pilot training programs focus on increasing actual flying time - So, here is the problem, we only need to ensure that pilot error will not contribute to 2/3 of all crashes, or we need to rethink it. But number and percentage are not the same things.

D. Lack of actual flying time is " not " an important contributor to pilot in commercial plane crashes

* if lacking of actual fly time is not the core factor of the crashes, then why we " must ' be rethink the training approach ?  apparently its about regarding the % of the pilot error contributing to crashes

E. not relevant to the core.