LSAT-15-2-17,LSAT-15-2-18,LSAT-15-2-21

1stzhang

[face=Georgia]Consumer activist: By allowing major airlines to abandon, as they promptly did, all but their most profitable routes, the government's decision to cease regulation of the airline industry has worked to the disadvantage of everyone who lacks access to large metropolitan airport.

Industry representative: On the contrary, where major airlines moved out, regional airlines have moved in and ,as a consequence, there are more flights into and out of most small airports now that before the change in regulatory policy.

17. The industry representative's argument will not provide an effective answer to the consumer activist's claim unless which one of the following is true?

(A) No small airport has fewer flights now than it did before the change in policy regarding regulation of the airline industry.

(B) When permitted to do so by changes in regulatory policy, each major airline abandoned all but large metropolitan airports.

(C) Policies that result in an increase in the number of flights to which consumers have easy access do not generally work to the disadvantage of consumers.

(D) Regional airlines charge les to fly a given route now that the major airlines charged when they flew the same route.

(E) Any policy that leads to an increase in the number of competitors in a given field works to the long-term advantage of consumers.
这个题目当时我在B/C之间犹豫了很久,最后选择了C.请讲讲B什么地方错了?答案是C

18. Which one of the following is assumption on which the consumer activist抯 argument depends?

(A) Before the recent change in regulatory policy, there was no advantage in having easy access to large metropolitan airport.

(B) When any sizable group of consumers is seriously disadvantaged by a change in government policy, that change should be reversed.

(C) Government regulation of industry almost always works to the advantage of consumers.

(D) At the time of the regulatory change, the major airlines were maintaining their less profitable routes at least in part be4cause of government requirements.

(E) Regional airlines lack the resources to provides consumers with service of the same quality as that provided by the major airlines.

这个题目我选 E,答案是D.


21. In response to high mortality in area hospitals, surgery was restricted to emergency procedures during a five-week period. Mortality in these hospitals was found to have fallen by nearly one-third during the period. The number of deaths rose again when elective surgery (surgery that can be postponed) was resumed. It can be concluded that ,before the five --week period, the risks of elective surgery had been incurred unnecessarily often in the area.

Which one of the following, if true, most seriously undermines the conclusion above?

(A) The conclusions for which elective surgery was performed would in the long run have been life-threatening, and surgery for them would have become riskier with time.

(B) The physicians planning elective surgery performed before the five-week period had fully informed the patients who would undergo it of the possible risks of the procedures.

(C) Before the suspension of elective surgery, surgical operations were performed in area hospitals at a higher rate, per thousand residents of the area, than was usual elsewhere.

(D) Elective surgery is, in general, less risky than is emergency surgery because the conditions requiring or indicating surgery are often less severe.

(E) Even if a surgical procedure is successful, the patient can die of a hospital-contracted infection with a bacterium that is resistant to antibiotic treatment.

这个题目我选C,答案是A.当时作题的时候觉得A是无关的就排除了.A是如何削弱的?[/face]

mindfree

1. 选C之前我也在两个选项中想了一下,不过我是在A/C之间. 此题是问rep的assumption. Rep说航班比以前更多了, 所以decision is not to the disadvantage. C直接将两个联系起来. B在这里是无关的, 它更象是另一类问题的答案. 如果原文是说:

consumer advocate: By allowing major airlines to abandon all but their most profitable routes, the government's decision to cease regulation of the airline industry will ultimately to the disadvantage of everyone who lacks access to large metropolitan airport.

问assumption. 就是B, 即如果airlines被允许那么做, 他们就会那么做.

2. E错在consumer advocate并没有提及regional airlines. 原文的gap并不在此. D填补gap的作用很明显, 将decison和airlines联系在一起. 在做此题时就要严格地根据原文的逻辑,局限于原文的因果关系内.

3. 此题确实有难度,我一上来也是排除了A, 但是后来发现BCDE都不对, 回来又看A才选上.

C貌似正确答案, 但是它的问题是并没有给出两个阶段的不同. 原文是根据两段时间death rate的不同做的结论, C中并没有指出后来的情况.还有一个关键的问题是C并没有给出higher rate of surgery和death rate以及elective surgery之间的关系, 如果选C,那么你要自己做assumption,这在GMAT中是基本不允许的.

A虽然没有给出两个阶段的不同, 但是"long run"和"riskier with time"解释了death rate的变化,所以是正确答案.

tianwan

17，not A, unless B: A->B;     A unless B, 非A-〉B。这个公式太有用了，太节省时间了，不管是在题干或提问中。


大家一定要把这个简单的原理记住！

gao_fog

请教 'the government's decision to cease regulation of the airline industry has worked to the disadvantage of everyone who lacks access to large metropolitan airport'是不是说:


"政府取消对航空业管制的决定对每个缺少机会去大城市机场的人的不利起作用了"     也就是说“政府取消管制有利于每个缺少机会去大城市机场的人”


这好像与industry rep说的相同！！！！请解惑！！


“Policies that result in an increase in the number of flights to which consumers have easy access do not generally work to the disadvantage of consumers. ” 是不是可以这样理解:


"导致顾客能够很容易乘坐的航班增长的政策并不一般对客户的不利有作用" 既是:"航班的对客户的不利没有作用"？


     请烦详解！感激不尽!