英语 英语 日语 日语 韩语 韩语 法语 法语 德语 德语 西班牙语 西班牙语 意大利语 意大利语 阿拉伯语 阿拉伯语 葡萄牙语 葡萄牙语 越南语 越南语 俄语 俄语 芬兰语 芬兰语 泰语 泰语 泰语 丹麦语 泰语 对外汉语

SSS 2011-02-16

时间:2011-03-04 05:33来源:互联网 提供网友:yw7514   字体: [ ]
特别声明:本栏目内容均从网络收集或者网友提供,供仅参考试用,我们无法保证内容完整和正确。如果资料损害了您的权益,请与站长联系,我们将及时删除并致以歉意。
    (单词翻译:双击或拖选)

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.

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 overestimate1 the steepness of slopes, and not because we're lazy.

Psychologists have long assumed that our misperception of slope was biased2 by fatigue3 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 passersby4 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 ascend5. In each case, half the subjects looked from the bottom and half from the top.

The results: viewers consistently overestimated6 the slant7 of each slope by about 20 degrees. The work appears in the journal Psychological Science.

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.

Thanks for the minute. For Scientific American's 60-Second Science, I'm Karen Hopkin.


点击收听单词发音收听单词发音  

1 overestimate Nmsz5Y     
v.估计过高,过高评价
参考例句:
  • Don't overestimate seriousness of the problem.别把问题看重了。
  • We overestimate our influence and our nuisance value.我们过高地估计了自己的影响力和破坏作用。
2 biased vyGzSn     
a.有偏见的
参考例句:
  • a school biased towards music and art 一所偏重音乐和艺术的学校
  • The Methods: They employed were heavily biased in the gentry's favour. 他们采用的方法严重偏袒中上阶级。
3 fatigue PhVzV     
n.疲劳,劳累
参考例句:
  • The old lady can't bear the fatigue of a long journey.这位老妇人不能忍受长途旅行的疲劳。
  • I have got over my weakness and fatigue.我已从虚弱和疲劳中恢复过来了。
4 passersby HmKzQJ     
n. 过路人(行人,经过者)
参考例句:
  • He had terrorized Oxford Street,where passersby had seen only his footprints. 他曾使牛津街笼罩了一片恐怖气氛,因为那儿的行人只能看到他的脚印,看不到他的人。 来自英汉 - 翻译样例 - 文学
  • A person is marceling on a street, watching passersby passing. 街边烫发者打量着匆匆行人。
5 ascend avnzD     
vi.渐渐上升,升高;vt.攀登,登上
参考例句:
  • We watched the airplane ascend higher and higher.我们看着飞机逐渐升高。
  • We ascend in the order of time and of development.我们按时间和发展顺序向上溯。
6 overestimated 3ea9652f4f5fa3d13a818524edff9444     
对(数量)估计过高,对…作过高的评价( overestimate的过去式和过去分词 )
参考例句:
  • They overestimated his ability when they promoted him. 他们提拔他的时候高估了他的能力。
  • The Ministry of Finance consistently overestimated its budget deficits. 财政部一贯高估预算赤字。
7 slant TEYzF     
v.倾斜,倾向性地编写或报道;n.斜面,倾向
参考例句:
  • The lines are drawn on a slant.这些线条被画成斜线。
  • The editorial had an antiunion slant.这篇社论有一种反工会的倾向。
本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎点击提交分享给大家。
------分隔线----------------------------
TAG标签:   sss  托福素材
顶一下
(1)
100%
踩一下
(0)
0%
最新评论 查看所有评论
发表评论 查看所有评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:
听力搜索
推荐频道
论坛新贴