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英语听力:自然百科 Surviving the Tornado 龙卷风来袭大难不死

时间:2014-04-18 08:25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)

 A tornado1 rips across the Missouri Plains. Winds over 150 miles per hour shred2 everything in the twister's path. When it smashes a trailer home, one man is sucked into the heart of the storm, spun3 and shaken horrifically. His limp body drops out of the sky a quarter of a mile away.

 
"It was crazy. I knew that I wasn't where I supposed to be, and it took me a minute to realize, you know, what was happening."
 
Matt hasn't broken a single bone. How could that be? Scientists estimate Matt hit the ground traveling at least 30 miles an hour. Yet his bones protected his internal organs from being smashed.
 
"Lock the door."
 
"Got it."
 
Our skeleton is made up of 206 bones, from the largest in our legs and arms to the tiny bones in our toes and fingers. They give us the tough flexible frame that lets us push and pull on our will.
 
Bone is incredibly strong.
 
Pound for pound, bone is stronger than concrete. It has a strength-to-weight ratio found in no other natural material on earth.
 
The secret of bone's strength and lightness lies inside. It is a matrix of hollow cells; its walls are as thin as paper.
 
Bone gets its rigidity4 from calcium5 and phosphorus, materials found in seashells and teeth. But astonishingly, almost half of our bone mass is soft and alive, allowing our bones to bend.
 
Every seven years, a healthy human body completely replaces every single bone cell. This renewal6 keeps our bones incredibly strong and uniquely adaptable7.

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1 tornado inowl     
n.飓风,龙卷风
参考例句:
  • A tornado whirled into the town last week.龙卷风上周袭击了这座城市。
  • The approaching tornado struck awe in our hearts.正在逼近的龙卷风使我们惊恐万分。
2 shred ETYz6     
v.撕成碎片,变成碎片;n.碎布条,细片,些少
参考例句:
  • There is not a shred of truth in what he says.他说的全是骗人的鬼话。
  • The food processor can shred all kinds of vegetables.这架食品加工机可将各种蔬菜切丝切条。
3 spun kvjwT     
v.纺,杜撰,急转身
参考例句:
  • His grandmother spun him a yarn at the fire.他奶奶在火炉边给他讲故事。
  • Her skilful fingers spun the wool out to a fine thread.她那灵巧的手指把羊毛纺成了细毛线。
4 rigidity HDgyg     
adj.钢性,坚硬
参考例句:
  • The rigidity of the metal caused it to crack.这金属因刚度强而产生裂纹。
  • He deplored the rigidity of her views.他痛感她的观点僵化。
5 calcium sNdzY     
n.钙(化学符号Ca)
参考例句:
  • We need calcium to make bones.我们需要钙来壮骨。
  • Calcium is found most abundantly in milk.奶含钙最丰富。
6 renewal UtZyW     
adj.(契约)延期,续订,更新,复活,重来
参考例句:
  • Her contract is coming up for renewal in the autumn.她的合同秋天就应该续签了。
  • Easter eggs symbolize the renewal of life.复活蛋象征新生。
7 adaptable vJDyI     
adj.能适应的,适应性强的,可改编的
参考例句:
  • He is an adaptable man and will soon learn the new work.他是个适应性很强的人,很快就将学会这种工作。
  • The soil is adaptable to the growth of peanuts.这土壤适宜于花生的生长。
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