L9(2)：Flying cats
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.
词音：common，shortage，windowsills，storeys，paratroopers，stretch，squirrels.
词义：windowsills 窗台；窗沿；storey 楼层；叠架的一层；paratrooper 伞兵；squirrel 松鼠；贮藏。
练习感悟：
文章里的玩猫实验让人反胃，阅读体验一颗星都不给。
练习时的感悟是，完全是凭借和原文对比来给自己及时反馈，朗读任务做完后想不出更好的改进空间，即使是在复述这一方面，也想不出比较合理的反馈机制定量标准，自己设一些专用标准吧，我要持续成长。
一句话，就是干。
