LSAT-15-2-7,LSAT-15-2-14,LSAT-15-2-15

1stzhang

[face=Georgia]7. all zebras have stripes, and the most widespread subspecies has the best-defined stripes. The stripes must therefore be of importance to the species. Since among these grassland grazers the stripes can hardly function as camouflage, they must serve as some sort of signal for other zebras.

Which one of the following, if true, most strongly supports the conclusion regarding a signaling function?

(A) The subspecies of zebras with the best-defined strips is also characterized by exceptional size and vigor.

(B) In certain tall grasses zebras can be harder to spot than grazing animals with a coat of uniform color.

(C) A visual signal transmitted among the members of a species can consist of a temporary change of color perceptible to other members of the species.

(D) Zebras react much faster to moving shapes that have stripes than they do to moving shapes that are otherwise identical but lack stripes

(E) Zebras have a richer repertoire of vocal signals than do similar species such as horses.

答案是D,但是我觉得d是无关的,我选的是B.

Zachary: One world have to be blind to the reality of moral obligation to deny that people who believe a course of action to be morally obligatory for them have both the right and the duty to pursue that action, and that no one else has any right to stop them form doing so.

Cynthia: But imagine an artist who feels morally obliged to do whatever she can to prevent works of art from being destroyed confronting a morally committed antipornography demonstrator engaged in destroying artworks he deems pornographic. According to your principle that artist has, simultaneously, both the right and the duty to stop the destruction and no right whatsoever to stop it.

14. Cynthia's response to Zachary's claim is structured to demonstrate that

(A) the concept of moral obligation is incoherent

(B) the ideas of right and duty should not be taken seriously since doing so leads to morally undesirable consequences.

(C) Zachary's principle is untenable on its own terms.

(D) Zachary's principle is based on an understanding of moral obligation that is too narrow to encompass the kind of moral obligation artists feel toward works of art

15. Which one of the following, if substituted for the scenario invoked by Cynthia, would preserve the force of her argument?

(A) a medical researcher who feels a moral obligation not to claim sole credit for work that was performed in part by someone else confronting another researcher who feels no such moral obligation

(B) a manufacturer who feels a moral obligation to recall potentially dangerous products confronting a consumer advocate who feels morally obliged to expose product defects

(C) an investment baker who believes that governments are morally obliged to regulate major industries confronting and investment banker who holds that governments nave a moral obligation not to interfere with market forces

(D) an architect who feels amoral obligation to design only energy-efficient buildings confronting, as a potential client, a corporation that believes its primary moral obligation is to maximize shareholder profits

(E) a health inspector who feels morally obliged to enforce restrictions on the number of cats a householder may keep confronting a householder who, feeling morally obliged to keep every stray that comes along ,has over twice that number of cats.

这两个题目原文读的不是很清楚,请问:大牛们,从原文读出什么信息作题的?答案是C和E[/face]

mindfree

1. B是weaken, 说明stripes还是camouflage, 而不是signaling. D是加强,说明stripes确实有signal的作用, 能使zebra反应快

2. 理解题目意思. 原文中Z说只要morally obliged to do sth., 就有right and duty去做这件事,其他人不能阻拦. Cynthtia的回答说明两种意见完全相反的人都have both right and duty.nobody can stop them. 指出了Z的argument的矛盾. C指出了Z的问题,就是在right and duty上.

3. 此题要求在举出相同的例子来. E是符合Cynthia的意思,两个意见相反的人同时都feel morally obliged to do things that are opposite.

A错,因为两个相反意见的人中的一个没有moral obligation
B错,因为虽然两个意见不同,但不是相对的
C错,是government obliged,和两种banker无关
D错, 同B

joywzy

第一题中，SIGNAL＝INDICATION，SIGN，如果是这样，那么A，D都对啊？

第二题，B为什么不对呢？
C明白了。

谢谢。

[此贴子已经被作者于2003-5-17 17:49:36编辑过]