久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

您現在的位置: Language Tips> Easy English> Odd Question  
   
 





 
Why do people say that cats have nine lives?
[ 2006-07-24 11:57 ]

人們常說貓有九命,果真如此嗎?一只貓從很高的樓上掉下來,多半都能安然無恙,讓你不得不相信它真的有那么多命。那么,事實果真如此嗎?讓我們一起來探索一下吧!

Why do people say that cats have nine lives?Some people believe in the superstition that cats have nine lives, because cats can survive falls from high places with few, if any injuries. This gives the appearance that the cats return to life after sustaining a fatal accident. Granted, they may sustain minor injuries, such as bloody noses, cracked teeth, or a few broken ribs, but they live to recover.

The ability of the cat to survive these accidents that would kill humans or other animals is not due to multiple lives, but to several advantages they possess. Their small size and low body weight soften the impact as they make contact with the ground after falling from great heights.

The highly developed inner ears of cats equip them with an unusually keen sense of balance, which is critical to their landing on their feet. This sense of balance allows a cat falling upside down to right himself by rapidly determining his position, repositioning himself, and making any adjustments necessary to ensure that he lands on all fours.

Since cats land on all four paws, the impact from landing on the ground is absorbed by all four. Additionally, cats bend their legs when they land, which cushions the impact by spreading the impact, not only through bones that could easily break, but through the joints and muscles as well.

Most are surprised to learn that a cat stands a greater chance of survival if it falls from a higher place than from a lower place. New Yorkveterinariansgathered data from theirfelinepatients, which clearly support this fact. Ten percent of their patients died after falling from 2-6 stories, while only five percent of the fatalities occurred when their patients fell from 7-32 stories.

Laws of physics explain why these survival rates vary. All falling bodies, regardless of their masses, accelerate by 22 miles per hour per second of their falls. The falling object, after traveling a certain distance through the air reaches a final speed, or "terminalvelocity," because the object's friction with the air slows the fall. The smaller the object's mass, and the greater its area, the more it will slow.
A cat falling from a higher floor, after it stops accelerating, spreads its legs into an umbrella shape, which increases the area against which the air must push and increases the friction, thus slowing the cat's fall. Through the cats highly developed sense of balance, he buys more time tomaneuverhis body in preparation for landing on all fours. A cat falling from a lower height does not have the opportunity to increase its body's area, slow its fall, or position his body to land on all four feet.

veterinarian: 獸醫

feline: 貓科動物

velocity: 速度

maneuver: 控制

中國日報網英語點津版權說明:凡注明來源為“中國日報網英語點津:XXX(署名)”的原創作品,除與中國日報網簽署英語點津內容授權協議的網站外,其他任何網站或單位未經允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883631聯系;凡本網注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯系,如產生任何問題與本網無關;本網所發布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請提供版權證明,以便盡快刪除。
相關文章 Related Story
 
 
 
本頻道最新推薦
 
職業虛景 career veneer
一夫多妻制家庭 plural families
Fashionistas unite over 'liberation shoes'
“非法小廣告”英文怎么說
亡者歸來:三分之一絕種動物再現世間
翻吧推薦
 
論壇熱貼
 
原來國家的名字如此浪漫
Funny lines about getting married
關于工資的英語詞匯大全
關于職業裝的英語詞匯
余光中《尺素寸心》(節選)譯

 

主站蜘蛛池模板: 九九久久国产 | 国产一级视频久久 | 国产日韩欧美精品一区二区三区 | 精品久久久久久久久久中文字幕 | 欧美在线一级精品 | 国产精品国产三级国产a | 中国一级做a爰片久久毛片 中日韩欧美一级毛片 | 亚洲一区网站 | 国产精品日韩欧美一区二区 | 91久久亚洲精品一区二区 | 日韩在线欧美在线 | 亚洲成人欧美 | 欧美激情视频在线观看一区二区三区 | 欧美一区二区三区免费 | 欧美国产成人精品一区二区三区 | 国产3区 | 精品亚洲成a人片在线观看 精品亚洲成a人在线播放 | 成人国产精品一级毛片视频 | 成人精品视频一区二区三区 | cao美女| 欧美另类视频在线 | 国产一级精品毛片 | 日韩18在线观看 | 伊人久色 | 免费日韩在线视频 | 国产91精品一区 | 日本一级~片免费永久 | 欧美xxxxbbb| 国内偷自第一二三区 | 久久国产精品岛国搬运工 | 经典三级久久 | 日本三级香港三级人妇99视 | 顶级毛片在线手机免费看 | 国产99高清一区二区 | 亚洲欧美日韩精品久久亚洲区色播 | 在线aaa | 国产精品无打码在线播放9久 | 国产不卡a | 欧美日韩一区二区在线观看视频 | 久久毛片网站 | 男人的天堂精品国产一区 |