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标题: 【求助牛人LSAT逻辑！！！】test5-section2 [打印本页]

作者: kevinli120 时间: 2009-8-20 00:35
标题: 【求助牛人LSAT逻辑！！！】test5-section2

5. Observatory director: Some say that funding the megatelescope will benefit only the astronomers who will work with it. This dangerous point of view, applied to the work of Maxwell, Newton, or Einstein, would have stifled their research and deprived the world of beneficial applications, such as the development of radio, that followed from that research.

If the statements above are put forward as an argument in favor of development of the megatelescope, which one of the following is the strongest criticism of that argument?

(A) It appeals to the authority of experts who cannot have known all the issues involved in construction of the megatelescope.

(B) It does not identify those opposed to development of the megatelescope.

(C) It launches a personal attack on opponents of the megatelescope by accusing them of having a dangerous point of view.

(D) It does not distinguish between the economic and the intellectual sense of “benefit.”

(E) It does not show that the proposed megatelescope research is worthy of comparison with that of eminent scientists in its potential for applications.

答案为E，我选了A。麻烦NN走过路过的帮忙解释一下，谢谢

20. In Brazil, side-by-side comparisons of Africanized honeybees and the native honeybees have shown that the Africanized bees are far superior honey producers. Therefore, there is no reason to fear that domestic commercial honey production will decline in the United States if local honeybees are displaced by Africanized honeybees.

Each of the following, if true, would weaken the argument EXCEPT:

(A) The honeybees native to Brazil are not of the same variety as those most frequently used in the commercial beekeeping industry in the United States.

(B) Commercial honey production is far more complicated and expensive with Africanized honeybees than it is with the more docile honeybees common in the United States.

(C) If Africanized honeybees replace local honeybees, certain types of ornamental trees will be less effectively pollinated.

(D) In the United States a significant proportion of the commercial honey supply comes from hobby beekeepers, many of whom are likely to abandon beekeeping with the influx of Africanized bees.

(E) The area of Brazil where the comparative study was done is far better suited to the foraging habits of the Africanized honeybees than are most areas of the United States.

答案选C，文章结论是非洲的bees好，如果replacement了，honey production不会下降。问的是没有weaken的。C是无关，honey产量与trees types不相关，所以没有weaken。但是D哪weaken了？hobby beekeepers都会换成非洲的bees啊，而非洲的好不会下降产量，哪里就weaken了？

做得脑袋大大的，晕死了~先

感谢各位帮忙！

作者: overthere33 时间: 2009-8-20 00:54

第一题你看明白A是什么意思了么？

A 说的是这个论述求助于那些不可能懂得所有有关望远镜制造问题的专家的权威这风马牛不相及吧尽管It appeals to the authority 诉诸于权威是GMAT逻辑中的常见错误，但上述论述不是犯了这个错误

E 说望远镜研究和那些名人科学家的应用需求不是一个层面的事不具有可比性

作者: overthere33 时间: 2009-8-20 01:06

D 怎么没weaken 占商业蜂蜜来源的大部分的那些业余养蜂人都不养密峰了注意是abandon beekeeping

没说会转向养非洲蜜蜂

作者: viviansecret 时间: 2009-8-20 01:07

第一个问题：

原文大意：有些人说资助望远镜仅仅有利于那些使用它的天文学家们。这个观点是危险的考虑到其他几个非天文学领域的科学家如果没有借助这些（望远镜带来的帮助），他们的研究会受阻。

这道题的问题是说如果以上作为一个论断是来支持这种望远镜的发展的，以下哪个批判了这个论断。ie.以下哪个削弱了望远镜的重要性。

E是说这样一个论断没有证明被建议的望远镜研究和那些杰出科学家的研究是没有可比性的。E是正确的，因为原来的论断思路是由于望远镜对那些杰出科学家的研究有帮助，所以应该被发展其他研究。E直接用断桥法说其他的研究和那些杰出科学家的研究没可比性，即能帮助那些杰出科学家的研究未必意味着能帮助其他研究。A选项中专家不了解建造望远镜的问题这个是无关选项。文中只提及望远镜是否会有显著帮助，它的建造以及专家是否了解问题根本与本题不沾边儿。

[此贴子已经被作者于2009/8/20 1:12:55编辑过]

作者: viviansecret 时间: 2009-8-20 01:12

第二个问题：C肯定是无关选项。文中只提换蜜蜂品种对产量的影响。C说对其他植物的影响，无关。D说美国有相当一部分养蜂人会放弃养蜂如果蜜蜂品种改变的话。直接削弱原文产量不会降低的结论。

不好意思，提个建议哦。可否每个帖子只发一个问题。这样可能会看上去舒服些，也更便于大家讨论。

[此贴子已经被作者于2009/8/20 1:13:22编辑过]

作者: kevinli120 时间: 2009-8-20 12:02
感谢overthere33和viviansecret，受教了~

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