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[Critical Reasoning]
试题详情
题目：
Half of the subjects in an experiment--the experimental group--consumed large quantities of a popular artificial sweetener. Afterward, this group showed lower cognitive abilities than did the other half of the subjects--the control group--who did not consume the sweetener. The detrimental effects were attributed to an amino acid that is one of the sweetener's principal constituents.
Which of the following, if true, would best help explain how the sweetener might produce the observed effect?
选项:
A、The government's analysis of the artificial sweetener determined that it was sold in relatively pure form.
B、A high level of the amino acid in the blood inhibits the synthesis of a substance required for normal brain functioning.
C、Because the sweetener is used primarily as a food additive, adverse reactions to it are rarely noticed by consumers.
D、The amino acid that is a constituent of the sweetener is also sold separately as a dietary supplement.
E、Subjects in the experiment did not know whether they were consuming the sweetener or a second, harmless substance.
答案:
B
提问：
看选项快速排掉了A、C、E，剩下的B、D，最后选了D。
进入review再读一遍时就发现D不对劲了。但当读第一遍的时候，我认为B关于脑功能的描述、和D里also引出关于添加剂的说明，属于同一类事物——都是原文从未提及的；鉴于不可能回去重读，就在缺乏对差异的靠谱考查的情况下，以不可名状的标准剔掉了B。
之前录音讲排除D的方法是“看到also就感觉不大好”，但没提这句话的适用范围如何。
请老师讲解，在当时有什么快速可靠的做法能避免这样的错误。
解答：
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提问：
看选项快速排掉了A、C、E，剩下的B、D，最后选了D。
进入review再读一遍时就发现D不对劲了。但当读第一遍的时候，我认为B关于脑功能的描述、和D里also引出关于添加剂的说明，属于同一类事物——都是原文从未提及的；鉴于不可能回去重读，就在缺乏对差异的靠谱考查的情况下，以不可名状的标准剔掉了B。
之前录音讲排除D的方法是“看到also就感觉不大好”，但没提这句话的适用范围如何。
请老师讲解，在当时有什么快速可靠的做法能避免这样的错误。
解答：
点赞0
阅读1045
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