一道CR题目求教

Gaby_WU · 发表于 2016-12-20 13:47:21

关于以下这题，我的问题是如何在A和D选项里面排它呢？求教

A newly discovered painting seems to be the work of one of two seventeenthcentury artists, either the northern German Johannes Drechen or the Frenchman Louis Birelle, who sometimes painted in the same style as Drechen. Analysis of the carved picture frame, which has been identified as the painting’s original seventeenth-century frame, showed that it is made of wood found widely in northern Germany at the time, but rare in the part of France where Birelle lived. This shows that the painting is most likely the work of Drechen.

Which of the following is an assumption that the argument requires?

A

The frame was made from wood local to the region where the picture was painted.
B

Drechen is unlikely to have ever visited the home region of Birelle in France.
C

Sometimes a painting so resembles others of its era that no expert is able to confidently decide who painted it.
D

The painter of the picture chose the frame for the picture.
E

The carving style of the picture frame is not typical of any specific region of Europe.

ztc199201290411 · 发表于 2016-12-23 00:57:02

D无关，A正确

genius16 · 发表于 2017-1-2 10:38:41

题目结论是说通过知道制作框的wood是来自G，得出的D说画家。
A说制作框和画的画是一起的，正好是其假设
而D说画画和选框是一起的，“选框：文中未说。比如若画家选的框是F制作的，岂不是削弱了结论？

Mlle_fernweh · 发表于 2019-11-17 17:59:00

这道题我也在A,D之间纠结了很久。

我们先来分析一下题目。

Premise：（1）新发现的画作，画家有可能是17C德国的JD，也有可能是17C法国的LB。
（2）这幅画的画框，是17C原始的画框，画框用的木头在德国普遍，而在法国不常见。

Conclusion：这显示画的作者是德国的JD。

这道题考察Assumption，这种题有两种解题思路。
1.Premise+条件（即正确选项）=结论
2.选项取非，削弱结论。

题目的逻辑在于：通过画框材料所在地，判别画作作者所在地。这种逻辑要成立的前提是：画框的木头，和画家的所在地，刚好是一个地方！这正是A选项。

我举个例子：我家有个祖传的摆钟，这个摆钟是当时英国常见的样式，而中国很少见到。所以我祖先是英国人。这个结论你肯定觉得荒谬，因为你可以反驳的理由有很多，比如，我爷爷是清朝大臣，这个摆钟是当时英国人带过来的。

那么这道题的逻辑也相似。D选项：这幅画的作者为这幅画选择了画框。

从正向理解：一个法国的画家也有可能为他的画选一个德国材料的画框。推不出结论。
从反向理解：取非后，画家没有为这幅画选择画框，即别人为这幅画选择了画框，那跟画家的国籍更没有关系了，削弱不了结论。

一道CR题目求教

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