课程咨询
托福培训

扫码免费领资料

内含托福全科备考资料

更有免费水平测试及备考规划

托福培训

扫码关注掌握一手留学资讯

回复XDF免费水平测试

托福听力练习-科学美国人60秒:山高万丈实为错觉

2017-05-25 08:59:00来源:科学美国人60秒

点击查看>>科学美国人60秒音频:山高万丈实为错觉

  科学美国人60秒听力练习:山高万丈实为错觉

  科学美国人60秒英文文本

  Stand at the bottom of a big hill and you can exhaust yourself just thinking about climbing it. But a new study suggests it’s not as bad as it looks. Because people tend to overestimate the steepness of slopes, and not because we’re lazy.

  Psychologists have long assumed that our misperception of slope was biased by fatigue or even fear of falling. If we see going up or down a hill as difficult, our perception could be influenced by our point of view.

  But researchers at Ohio State University have found it isn’t so. The scientists asked 200 passersby to estimate the angle of a set of stairs, and another 200 to do the same for an escalator—which, of course, requires no effort to ascend. In each case, half the subjects looked from the bottom and half from the top.

  The results: viewers consistently overestimated the slant of each slope by about 20 degrees. The work appears in the journal Psychological Science. [Dennis Shaffer and Mariagrace Flint, "Escalating Slant: Increasing Physiological Potential Does Not Reduce Slant Overestimates"]

  The researchers are not sure what drives this angular disparity. Perhaps it’s because our visual system evolved to be overly sensitive to even slight departures from the horizontal, to help keep us upright. Because ‘not falling down’ is the first step to making it up that hill.

  —Karen Hopkin

  中文翻译请点击下一页

托福辅导

关注新东方在线托福

托福机经·Official题目练习

考前重点突破·听说读写海量资料

更多资料
更多>>
更多内容

免费获取托福备考大礼包

微信扫描下方二维码 立即领取

托福辅导
更多>>
更多公益讲座>>
更多>>
更多资料