9．All these cats had one experience in common: they had fallen off high buildings, yet only eight of them died from shock or injuries.

 in common = the same

 fall off 坠落， 掉落

die from:死于

死于疾病：die of illness / disease / hunger / thirst,自然的死亡用of

死于非自然原因：die from shock / injures / wound, 用from

10. New York is the ideal place for such an interesting study, because there is no shortage of tall buildings.

there is no shortage 缺乏新概念英语教材下载

shortage:缺乏 = lack, 与of搭配，shortage / lack of

e.g. Shortage of money led to the failure of the experiments. 资金紧缺导致实验失败。

11．One cat, Sabrina, fell 32 storeys, yet only suffered from a broken tooth.

32 storeys，storey作复数时，-s

suffer from: 遭受什么痛苦

e.g. A lot of people in the world are suffering from terrible disease.

12. Cats behave like well-trained paratroopers behave like = act like

well-trained: 训练很好的，well-Pp.结构 e.g. well-decorated:装饰漂亮的