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标题: 请教一道逻辑题 [打印本页]

作者: kevin0214 时间: 2010-11-10 23:53
标题: 请教一道逻辑题
24.There is little point in looking to artists for insights into political issues. Most of them hold political views that are less insightful than those of any reasonably well-educated person who is not an artist. Indeed, when taken as a whole, the statements made by artists, including those considered to be great, indicate that artistic talent and political insight are rarely found together.
Which one of the following can be inferred from the passage?
(A) There are no artists who have insights into political issues.
(B) A thorough education in art makes a person reasonably well educated.
(C) Every reasonably well-educated person who s not an artist has more insight into political issues than any artist.
(D) Politicians rarely have any artistic talent.
(E) Some artists are no less politically insightful than some reasonably well-educated persons who are not artists.

这题该选什么？理由。

作者: gkast 时间: 2010-11-11 00:13
题干: Most of them (artists) hold political views that are less insightful than those of any reasonably well-educated person who is not an artist.
大部份艺术家的政治观都不及任何一个接受良好教育的非艺术家有深度

A，"没有一个"艺术家有有深度的政治观 -- 过了，原文说"大部份艺术家的政治观都不够深度"而已
B，受过完全的艺术教育等同良好教育 -- 无关
C，"所有"接受良好教育的非艺术家的政治观都比"任何一个"艺术家的政治观有深度 -- 过了，原文说"大部份艺术家的政治观都不及任何一个接受良好教育的非艺术家有深度"，所以应该是"任何一个接受良好教育的非艺术家比‘大部份’艺术家的政治观有深度"
D，政治家少有艺术才华 -- 无关
E，"有些"艺术家的政治观深度不会比接受良好教育的非艺术家少 -- "大部份艺术家的政治观都不及任何一个接受良好教育的非艺术家有深度"，即是说"有些"艺术家的政治观还是有深度的。

E

作者: kevin0214 时间: 2010-11-11 00:25
但是"大部份艺术家的政治观都不及任何一个接受良好教育的非艺术家有深度"，应该是推不出"有些"艺术家的政治观还是有深度的"的呀。
比如说一个班全是男生。我说：这个班大部分学生是男生，或者说：这个班一部分学生是男生。这是对的。但是这推不出“还有一部分学生不是男生”的。
逻辑上，“有些A是B”推不出“有些A不是B"
some 和most，Lawyer_1解释是some表示1-100，most表示51-100。可以包含全部。

作者: kevin0214 时间: 2010-11-11 00:27
其实这题答案就是选E了，但是总觉得其实应该都是不对的。

作者: gkast 时间: 2010-11-11 00:37
这个班大部分学生是男生，那剩下的人怎么不会"不是男生"。。。?

我相信GMAC还是粉保守滴。。。
更何况如果一个班上全是男生，也不会将之形容为"大部份是男生"吧。。。你叫剩下的男生情何以堪啊。。。
不说笑，再举例，跟你说我的朋友大部份都是不抽茹的，那你一定会想: 那这个人某些朋友抽茹吧。但事实是，我所有的朋友都不抽茹。

我翻译不好，可能造成误解吧

大部份艺术家政观 < all 接受良好教育的非艺术家
那剩下的艺术家政观呢? 不会是 < all 接受良好教育的非艺术家，因为这批人被排除了，那么会是either = or > 吧。no less than，应该理解为 = 。

作者: kevin0214 时间: 2010-11-11 00:46
这个班大部分学生是男生，那剩下的人怎么不会"不是男生"。。。? 我相信GMAC还是粉保守滴。。。
我狂汗……不是那个意思……
我的意思是
如果你不知道一个班有多少是男生，你问班主任，班主任说：这个班有些学生是男生。现在已知班主任说的是真话，你能否得出结论这个班还有一些人是女生？（我们假设只有男生和女生两种学生……）
显然是不行的，因为即使这个班一个女生都没有，班主任说的依然是真话。所以从他所说的话无法推出这个班还有一些是女生。

作者: gkast 时间: 2010-11-11 00:50
但问题是，你不会这样说话吧，对不?

如果我跟你说，我的朋友大部份都是不抽茹的，那你一定会想: 那这个人某些朋友抽茹吧。绝 - 不 - 可 - 能会想到我所有的朋友都不抽茹。然后我再跟你说，你错了，我所有的朋友都不抽茹。那你应该很想扇我吧。。。
或者再举例，家有3条狗，你不会告诉人: 我家有2条狗，还有一条狗。

作者: kevin0214 时间: 2010-11-11 01:03
没错，但这里是逻辑题……逻辑里的"有些"确实是这么用的。正如GMAT的语法里WHICH不能代前面的整个句子一样，强调现实中没有这样用或者现实中就是这样用都是没意义的……
可能是我钻牛角尖了，或许考试中还是不会用这个作为考点的，确实也没见过。洗洗睡了……

作者: sdcar2010 时间: 2010-11-11 02:37
The key is to read into the last sentence, which says "the statements made by artists indicate that artistic talent and political insight are rarely found together". Rarely means less likely but not impossible. Hence, at least one artist has political insight.

作者: Rainbeauty 时间: 2010-11-11 08:16
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作者: sdcar2010 时间: 2010-11-11 08:30
The statement that artists rarely have any political insight does not have anything to do with what artistic talent politician might have.

The reason is that there is no definition of politician given in the stimulus. For that matter, a politician might be a moron or a genius or anything in-between.

作者: 子夜风衍 时间: 2010-11-11 09:23
E 没争仪

作者: Eileenl 时间: 2010-11-11 11:37
Most of them hold political views that are less insightful than those of any reasonably well-educated person who is not an artist。
这句貌似就是解题的核心，我感觉是most of them...are less...than any ......= some of them ...are not less...than some....

作者: kevin0214 时间: 2010-11-11 11:50

The key is to read into the last sentence, which says "the statements made by artists indicate that artistic talent and political insight are rarely found together". Rarely means less likely but not impossible. Hence, at least one artist has political insight.

-- by 会员 sdcar2010 (2010/11/11 2:37:21)

谢谢！明白了，这里才是关键啊。
D不对，偷换了概念，politician和 political insight 不一样。politician不一定有 political insight 。

作者: sdcar2010 时间: 2010-11-11 11:50
Eleenl:
Most means a majority, possibly all. Some means at least one, possibly all. Therefore, "most of them are A" could be "all of them are A", hence "NOT a single one of them are NOT A", which is contrary to "some are not A."

作者: kevin0214 时间: 2010-11-11 12:33

Eleenl:
Most means a majority, possibly all. Some means at least one, possibly all. Therefore, "most of them are A" could be "all of them are A", hence "NOT a single one of them are NOT A", which is contrary to "some are not A."

-- by 会员 sdcar2010 (2010/11/11 11:50:38)

同意sdcar2010，most和some都是包含all的，或许生活中我们默认它不包含，但逻辑上some A are B，一定推不出some A are NOT B。

作者: xixigongzhu91 时间: 2012-3-4 17:13
怎么这么绕

作者: sdcar2010 时间: 2012-3-4 23:47
E) is wrong because it equal politician with someone with political insights. Nowhere in the passage could you find such statement. I am not a politician. But I might have political insights.

作者: 子弹青春 时间: 2012-3-5 09:36

为什么不选D 我个人认为D是这个题的题干的逆否命题
觉得E推不出理由如Kevin

-- by 会员 Rainbeauty (2010/11/11 8:16:26)

We can not get from the conclusion of the argument above that most politicians do not have any aristic talent. The key is the word any. It uncessarily add the extent of aristic talent or political insight.

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