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英语视频听力:奥运项目跨栏

时间:2013-11-07 12:22来源:互联网 提供网友:gmeng   字体: [ ]
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    (单词翻译:双击或拖选)

Every athlete battles mental barriers. But this Olympian must defeat physical barriers too: all ten of them!

  Hi, I'm Dr Greg Wells. Hurdlers are incredible multi-taskers. They have to be. Taking off like they've been shot from a cannon1, they must somehow maintain enough control to soar, smoothly2, over barriers about a metre high, in rapid succession.

  So, how do they pull it off? When most of us run, our femur moves through a small range of motion in the hip3 socket4 -and in just one direction. But hurdlers train to move their femurs differently: they have twice the range of motion, and rotate in a circle at the same time!

  The secret is a special stomach muscle called the psoas. It runs from your thigh5 bone, through your stomach, and up your lower back. Hurdlers lengthen6 and strengthen their psoas muscle. That lets them whip their trail leg through the entire range of motion with incredible speed.

  The average person can run 7-10 km/h, but the unique combination of strength and flexibility7 enables an Olympic hurdler to hit up to 30! The fusion8 of hip motion and muscle recoil9... That's how you leap to gold!

  中文字幕:

  每位运动员都要克服心理障碍。而这位奥运选手还必须克服实际障碍,共有十个之多。

  我是维尔斯博士。跨栏选手是神奇的多面手,他们必须做到。他们起跑犹如炮弹,但又必须保持足够控制力,才能顺畅地越过约一米高的障碍物,一个接一个。

  他们是怎么做到的呢?我们跑步时,大腿的股骨在髋臼内作小幅度的运动,而且只朝一个方向。但跨栏选手股骨的运动有所不同,活动幅度达常人两倍,同时还可以打圆圈。

  秘密在于腹部一块叫腰肌的特殊肌肉。腰肌从大腿骨经腹部连到下背部。跨栏选手把腰肌练得更长更强,让他们的跟进腿能以惊人速度,跨出大幅度动作。

  一般人跑速是每小时7到10公里,而奥运跨栏选手结合劲力和灵活度,可以达到时速30公里。髋部运动加上肌肉回弹,就是夺金之道!

 


点击收听单词发音收听单词发音  

1 cannon 3T8yc     
n.大炮,火炮;飞机上的机关炮
参考例句:
  • The soldiers fired the cannon.士兵们开炮。
  • The cannon thundered in the hills.大炮在山间轰鸣。
2 smoothly iiUzLG     
adv.平滑地,顺利地,流利地,流畅地
参考例句:
  • The workmen are very cooperative,so the work goes on smoothly.工人们十分合作,所以工作进展顺利。
  • Just change one or two words and the sentence will read smoothly.这句话只要动一两个字就顺了。
3 hip 1dOxX     
n.臀部,髋;屋脊
参考例句:
  • The thigh bone is connected to the hip bone.股骨连着髋骨。
  • The new coats blouse gracefully above the hip line.新外套在臀围线上优美地打着褶皱。
4 socket jw9wm     
n.窝,穴,孔,插座,插口
参考例句:
  • He put the electric plug into the socket.他把电插头插入插座。
  • The battery charger plugs into any mains socket.这个电池充电器可以插入任何类型的电源插座。
5 thigh RItzO     
n.大腿;股骨
参考例句:
  • He is suffering from a strained thigh muscle.他的大腿肌肉拉伤了,疼得很。
  • The thigh bone is connected to the hip bone.股骨连着髋骨。
6 lengthen n34y1     
vt.使伸长,延长
参考例句:
  • He asked the tailor to lengthen his coat.他请裁缝把他的外衣放长些。
  • The teacher told her to lengthen her paper out.老师让她把论文加长。
7 flexibility vjPxb     
n.柔韧性,弹性,(光的)折射性,灵活性
参考例句:
  • Her great strength lies in her flexibility.她的优势在于她灵活变通。
  • The flexibility of a man's muscles will lessen as he becomes old.人老了肌肉的柔韧性将降低。
8 fusion HfDz5     
n.溶化;熔解;熔化状态,熔和;熔接
参考例句:
  • Brass is formed by the fusion of copper and zinc. 黄铜是通过铜和锌的熔合而成的。
  • This alloy is formed by the fusion of two types of metal.这种合金是用两种金属熔合而成的。
9 recoil GA4zL     
vi.退却,退缩,畏缩
参考例句:
  • Most people would recoil at the sight of the snake.许多人看见蛇都会向后退缩。
  • Revenge may recoil upon the person who takes it.报复者常会受到报应。
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