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課文內容：
Cats never fail to fascinate human beings. They can be friendly and affectionate towards humans, but they lead mysterious lives of their own as well. They never become submissive like dogs and horses. As a result, humans have learned to respect feline independence. Most cats remain suspicious of humans all their lives. One of the things that fascinates us most about cats is the popular belief that they have nine lives. Apparently, there is a good deal of truth in this idea. A cat's ability to survive falls is based on fact.
Recently the New York Animal Medical Center made a study of 132 cats over a period of five months. All these cats had one experience in common: they had fallen off high buildings, yet only eight of them died from shock or injuries. Of course, New York is the ideal place for such an interesting study, because there is no shortage of tall buildings. There are plenty of high-rise windowsills to fall from! One cat, Sabrina, fell 32 storeys, yet only suffered from a broken tooth. 'Cats behave like well-trained paratroopers.' a doctor said. It seems that the further cats fall, the less they are likely to injure themselves. In a long drop, they reach speeds of 60 miles an hour and more. At high speeds, falling cats have time to relax. They stretch out their legs like flying squirrels. This increases their air-resistance and reduces the shock of impact when they hit the ground.
參考翻譯：
貓總能引起人們的極大興趣。它們可以對人友好，充滿柔情。但是，它們又有自己神秘的生活方式。它們從不像狗和馬一樣變得那么順從。結果是人們已經學會尊重貓的獨立性。在它們的一生中，大多數貓都對人存有戒心。最使我們感興趣的一件事情就是一種通俗的信念——貓有九條命。顯然，這種說法里面包含著許多真實性。貓在跌落時能夠大難不死是有事實作為依據的。
最近，紐約動物醫療中心對132只貓進行了為期5個月的綜合研究。所有這些貓有一個共同的經歷：它們都曾從高層建筑上摔下來過，但只有其中的8只貓死于震蕩或跌傷。當然，紐約是進行這種有趣的試驗的一個理想的地方，因為那里根本不缺乏高樓大廈，有的是高層的窗檻從上往下墜落。有一只叫薩伯瑞的貓從32層樓上掉下來，但只摔斷一顆牙。“貓就像訓練有素的跳傘隊員，” 一位醫生說。看起來，貓跌落的距離越長，它們就越不會傷害自己。在一個長長的跌落過程中，它們可以達到每小時60里甚至更快的速度。在高速下落中，貓有時間放松自己。它們伸展四肢，就像飛行中的松鼠一樣。這樣就加大了空氣阻力，并減少了它們著地時沖擊力帶來的震動。
