【美国国家地理】：骆驼和仙人掌

　　英文版本

　　Our journey to the desert has given us to taste of the intense dryness there. But how can desert animals and plants live without much water? Well they have their own ways.

　　There’s not enough water in the desert. So, to store water, camels use their humps. Humps can store fat. With the help of fat, water can be formed. Camels play an important role in transporting goods in deserts. People gave them a nickname, ‘ships of desert’. Plants also have good ways of storing water. Cacti are clever. They store enough water in their stems. Cacti have many thorns to protect themselves. Most animals can’t eat them.

　　Some other desert plants have small leaves and during the daytime, their leaves curl up to hold water. Many desert plants only live for one reason. When it rains,they can grow and bloom very quickly. The desert becomes a wonderland of flowers almost overnight. Well, young explorers,thanks for listening! See you next time.

　　中文版本

　　上一集中，我们已经体味到沙漠中的极度干旱了。在这里，植物和小动物们该如何生存呢？它们可有着自己的独家秘诀。

　　沙漠中，水资源稀缺。因此骆驼用他们的驼峰储存水分。驼峰中含有脂肪。借助这些脂肪，骆驼体内就能产生水。骆驼是沙漠中用来运输货物的重要劳动力。它们“沙漠之舟”的称号由此而来。沙漠中的植物也有它们的储水妙招。仙人掌很聪明。它们把水储存在茎中。还可以利用满身的刺保护自己。（正因为这些刺）很多动物无法对他们下嘴。

　　还有一些植物，它们的叶子小小的。在白天，还会将叶子卷曲起来。很多沙漠植物只生长一季。一下雨，它们就会快速地生长，开花。只要一晚，一片沙漠就能变成一个梦幻花园。

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