摘要：Most sharks eat fish. Large sharks eat sea lions（海狮）, dolphins, and other sharks. These large sharks have very sharp teeth. The te

The shape of a shark’s teeth depends on the kind of food it eats. Most sharks have many rows of teeth. When one tooth breaks off, another one moves up to take its place.

鲨鱼牙齿的形状取决于它所吃的食物种类。大多数鲨鱼有好几排牙齿。当一颗牙齿脱落时，另一颗就会移上来取代它的位置。

Most sharks eat fish. Large sharks eat sea lions（海狮）, dolphins, and other sharks. These large sharks have very sharp teeth. The teeth help the shark catch and hold onto its food.

大多数鲨鱼以鱼为食。大型鲨鱼会捕食海狮、海豚以及其他鲨鱼。这些大型鲨鱼长着十分锋利的牙齿。这些牙齿有助于鲨鱼捕捉并咬住猎物。

一些鲨鱼以贝类为食。这些鲨鱼长着扁平的牙齿，用于咬碎贝壳。巨大的鲸鲨虽有细小的牙齿，但进食时并不使用它们。鲸鲨会吞下漂浮在海洋表面附近的非常小的海洋植物和动物。

Most kinds of sharks give birth to baby sharks, called pups. A few kinds of sharks lay eggs that hatch a few months later. Few pups live long enough to become adult sharks.

大多数种类的鲨鱼都会生下鲨鱼宝宝，也就是幼鲨。有几种鲨鱼是下蛋的，几个月后孵化。很少有幼鲨能活到成年。

来源：峻浩教育