请教！！OG12-124

swordghost

Museums that house Renaissance oil paintings typically store them in environments that are carefully kept within
narrow margins of temperature and humidity to inhibit any deterioration. Laboratory tests have shown that the
kind of oil paint used in these paintings actually adjusts to climatic changes quite well.If, as some museum
directors believe, paint is the most sensitive substance in these works, then by relaxing the standards for
temperature and humidity control, museums can reduce energy costs without risking damage to these
paintings. Museums would be rash to relax those standards, however, since results of preliminary tests indicate
that gesso, a compound routinely used by Renaissance artists to help paint adhere to the canvas, is unable to
withstand signifi cant variations in humidity.
In the argument above, the two portions in boldface play which of the following roles?
(A) The fi rst is an objection that has been raised against the position taken by the argument; the second is the
position taken by the argument.
(B) The fi rst is the position taken by the argument; the second is the position that the argument calls into
question.
(C) The fi rst is a judgment that has been offered in support of the position that the argument calls into
question; the second is a circumstance on which that judgment is, in part, based.
(D) The fi rst is a judgment that has been offered in support of the position that the argument calls into
question; the second is that position.
(E) The fi rst is a claim that the argument calls into question; the second is the position taken by the argument.

此题蓝字部分吧我搞晕了！sensitive我原以为是敏感的，即容易损坏的，而后面又说可以减低成本。这种自相矛盾的说法把我彻底搞晕，如果是考试状态，我将彻底崩溃！！
请教各位大侠们，解这道题的正确方法应该是怎样的？谢谢！！！！

anthonygong

帮楼主分析下

Museums that house Renaissance oil paintings typically store them in environments th ...
doudoucc 发表于 2013-7-2 06:35

不怕嘲笑继续举手提问：
按照D的答案，bf1是judgement，且in support of bf2的position，那么逻辑就是：bf1: paint已经是最敏感易损的部分了但也足够抵抗温度变化，所以推导到bf2: 可以不用担心risks从而减低这方面的costs？、

因为顺着提干的意思，我理解的是bf1中的sensitive和bf2中reduce costs是对立的。。。

swordghost

谢谢！！

我当时做错，是把sensitive，即认为是敏感的，容易变坏，又认为是可根据环境随意变化的，所以自己折磨了自己！

doudoucc

帮楼主分析下

Museums that house Renaissance oil paintings typically store them in environments that are carefully kept within
narrow margins of temperature and humidity to inhibit any deterioration.
（1.背景信息，介绍文艺复兴时期的油画现在是怎么储存的）

Laboratory tests have shown that the
kind of oil paint used in these paintings actually adjusts to climatic changes quite well. （2.介绍新的发现：油画颜料其实很容易保存）

If, as some museum
directors believe, paint is the most sensitive substance in these works,
（3.提出下面的立场成立所需的假设：在组成这些画的元素里面，颜料是最敏感 也就说是 最容易坏的元素）

then by relaxing the standards for
temperature and humidity control, museums can reduce energy costs without risking damage to these
paintings.
（4.中间立场：由前面两条推出，博物馆不需要那么严格的温度和湿度控制，所以可以省钱）

Museums would be rash to relax those standards, however, since results of preliminary tests indicate
that gesso, a compound routinely used by Renaissance artists to help paint adhere to the canvas, is unable to
withstand signifi cant variations in humidity.
（5.最终的argument：尽管有了2中的发现，但由于石膏才是最容易坏的元素，导致3的assumption错误的，所以博物馆不应该草率地取消严格的温度和湿度控制）

这样思路应该比较清晰了。 楼主再看看选项D有没有道理吧