英语视频听力:奥运项目跨栏
时间:2019-02-05 作者:英语课 分类:英语新闻视频
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 cannon 1, they must somehow maintain enough control to soar, smoothly 2, 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 hip 3 socket 4 -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 thigh 5 bone, through your stomach, and up your lower back. Hurdlers lengthen 6 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 flexibility 7 enables an Olympic hurdler to hit up to 30! The fusion 8 of hip motion and muscle recoil 9... 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
1
cannon
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
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
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
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
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
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
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
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
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。
- The soldiers fired the cannon.士兵们开炮。
- The cannon thundered in the hills.大炮在山间轰鸣。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。