2. 考研
  3. Have you ever felt your life go into slow motion as you realize something bad is happening? Now scientists have measured exactly

Have you ever felt your life go into slow motion as you realize something bad is happening? Now scientists have measured exactly

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问题         Have you ever felt your life go into slow motion as you realize something bad is happening? Now scientists have measured exactly how much these attention-grabbing events slow down our perception of the world around us.
        An example of the world appearing to slow down is when you are hanging on the phone waiting for someone to pick up at the other end. If your attention wanders while you’re waiting, then suddenly switches back, you will probably hear what seems like a longer than usual silence before hearing the dialing tone again.
        To see how our perception of time changes when something new happens, Vincent Walsh and his colleagues put headphones on volunteers and played eight beeps to their right ears. The gap between each beep was exactly 1 second, except for the gap between the fourth and fifth beeps, which the scientists could make shorter or longer. They altered the length of this gap until the volunteers estimated it was the same length as the other gaps. The researchers found that, on average, people judge a second slightly short, at 955 milliseconds.
        In the second part of the experiment, the first four beeps were played to the subjects’ right ear, but the other four were then played to their left. Again, the volunteers were asked to estimate when the gap between the fourth and fifth beeps was the same as the others. This time they judged a second to be even shorter at 825 milliseconds long.
        Perceiving a second to be much shorter than it is makes you feel as though the world has gone into slow motion. Walsh thinks the effect could have evolved to give us a fraction more time to react to potentially threatening events.
Which is the best title for the passage?
选项 A、How People Find Out the Secret of the Time
B、Which Ear Is Better
C、How People Perceive the World Around Us at Some Moment
D、The Relationship Between Temperature and Perception
答案C
解析 文章主要讲述了当一些突发事件或令人不快的事情发生时，人们对外界的感知是怎样的，故选C。
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