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托福阅读:哈欠谜团 The Mystery of Yawning

2016-04-25 17:16:47来源:网络

  难句解析:

  [When researchers measured the heart rate, muscle tension and skin conductance of people before, during and after yawning], they did detect some changes [in skin conductance following yawning], [indicating a slight increase in physiological activity].

  研究人员在(志愿者)打哈欠的前、中、后三个阶段均测量了心率、肌肉张力以及皮肤传导性,而他们测得皮肤传导性在打哈欠后的确存在一些变化,这一变化表明生理活动有轻微的增强。

  题目演练:

  1. The word “flaw” in the passage is closest in meaning to

  A. fault

  B. aspect

  C. confusion

  D. mystery

  2. Paragraph 2 answers all of the following questions about yawning EXCEPT

  A. Does yawning increase alertness or physiological activity?

  B. Does thinking about yawning increase yawning over not thinking about yawning?

  C. Does the amount of carbon dioxide and oxygen in the air affect the rate at which people yawn?

  D. Does the rate of breathing affect the rate at which people yawn?

  Answer: A B

  解题思路:

  1.

  词汇题

  Flaw

  1. a defect in physical structure or form

  2. an imperfection or weakness and especially one that detracts from the whole or hinders effectiveness

  根据上述词义,只有A选项(缺陷;瑕疵)与之相符,故为正确选项

  B选项:方面;角度

  C选项:混淆;迷惑

  D选项:谜团

  2.

  否定事实信息题

  题目询问本段解答了关于打哈欠的哪些问题。本段共包含三个实验,每一个实验分别试图解答一个问题。

  实验1为原文2~4句,其中第四句为结论:打哈欠对于生理活动的状态并无特殊作用。该试验解答了选项A提出的问题:打哈欠能够提升生理活动,但并非特殊或唯一的方式。

  实验2为原文5~8句,其中第八句为结论:在这两种条件(吸入纯氧和吸入二氧化碳浓度较高的空气)下,打哈欠的频率并无任何差异,均维持在稳定的约24个每小时。该实验解答了选项C提出的问题:二氧化碳和氧气的含量对打哈欠的频率没有影响。

  实验3为原文第九句,其结论为:即使是可以让呼吸频率翻倍的剧烈运动对于打哈欠频率也毫无影响。该实验解答了选项D提出的问题。

  因此,只有B选项提出的问题在原文中没有得到解答,故B选项为正确选项。

  You Know What

  In humans, yawning is often triggered by others yawning (e.g., seeing a person yawning, talking to someone on the phone who is yawning) and is a typical example of positive feedback. This "contagious" yawning has also been observed in chimpanzees, dogs, and can occur across species.

  人们打哈欠还可能是因为被别人传染哦(例如看见别人打哈欠或者打电话时听见对方打哈欠),这个一个典型的正面反馈。哈欠的“传染性”在猩猩和狗狗身上都有体现,更神奇的是还可以跨物种哦。

  以上就是新东方在线托福网为你带来的托福阅读:哈欠谜团 The Mystery of Yawning,更多精彩敬请关注新东方在线托福网。


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