课外阅读。

   马鞍藤是南部海边常见的植物。它的花介于牵牛花与番薯花之间，但比前两者花形更美、花朵更大、气势也更雄浑。因此，它盛开的时候就像开大型运动会似（sì  shì）的。

   马鞍藤有着非常强盛的生命力，在海边的沙滩上暴晒烈日，迎接海风，甚至给它灌溉海水都可以存活。有的根茎藏在沙中看起来已枯萎，第二年雨季时，却又冒出芽来。

   这又美又强盛的花，在海边，竟很少有人会欣赏。与马鞍藤背道而驰的是马蹄兰，马蹄兰的茎叶都很饱满，能开出纯白的恍若马蹄的花朵。它必须种在气温合适、多雨多水的田里，但又怕大风大雨。大雨一下就会淋破它的花瓣，大风一吹又会使它的肥茎摧折。

   这两种花名有如兄弟的花，却表现了完全相反的特质（zhì   zhī），当然，因为这种特质也有了不同的命运。马鞍藤被看成是轻贱的花，顺其自然生长或凋落，绝没有人会欣赏、采摘 （zhaí   zhaī）；马蹄兰则被看成珍贵的花并被珍爱着，而它最大的用途是用在丧（shāng   sāng）礼上，它被看成是无常的象征。

A

    It looks like there are more cats around us today. In fact, now there are about 58.1million pet cats in China. China has the second largest number of cat owners in the world 1 the United States. Every year, more young people take cats as pets.

    More cats bring more 2. Many people now work at pet shops and animal hospitals. But cats can become 3, too. Some people throw their pet cats away. Then the cats become 4. They can pass on diseases（疾病）, and they kill other animals like birds and frogs.

    So in Japan and Australia, the governments 5 homeless cats to animal hospitals. Doctors operate on them. So the cats can't have babies. In this way, the number of cats will not go up.