U1W4 People Helping whales

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People Helping whales

人类帮助鲸鱼

Chapter 1 Amazing whales Whales are amazing animals. There are many different kinds of whales. They come in all different sizes. The biggest is the blue whale. It can grow up to 100 feet in length. It's the largest animal that has ever existed on Earth. Blue whales may weigh as much as 200 tons or more.

第1章 神奇的鲸鱼 鲸鱼是神奇的动物。鲸鱼有很多不同的种类。 它们大小各异。最大的是蓝鲸。它的体长可达100英尺。它是地球上曾经存在过的最大的动物。 蓝鲸体重可能重达200吨甚至更多。

Orca whales can grow up to 27 feet long. That's about a quarter of the size of a blue whale. Orcas are good hunters because they can swim very fast. Their prey includes fish, seals, and birds. Sometimes they hunt young blue whales. Orcas are also called killer whales.

虎鲸可以长到27英尺长。大约是蓝鲸体长的四分之一。虎鲸是优秀的猎手，因为它们游泳速度非常快。它们的猎物包括鱼类、海豹和鸟类。有时它们会捕猎幼年蓝鲸。 虎鲸也被称为杀人鲸。

All whales are alike in some ways. They all have smooth skin. This helps them slide easily through the water. Under their skin, they have a layer of fat called blubber. It helps to keep the whale warm. Some whales can survive even in icy cold water.

在某些方面，所有的鲸鱼都很相似。它们都有光滑的皮肤。这有助于它们轻松地在水中滑行。在它们的皮肤下面，有一层叫做鲸脂的脂肪。这有助于保持鲸鱼的体温。 有些鲸鱼甚至能在冰冷的水中生存。

Whales breathe air through a blowhole. It is on top of the whale's head. Whales come up to the surface of the water to breathe. That's Not a Fish! Whales are not fish - they are mammals. That means they have to breathe air. They also feed milk to their young. A young blue whale will drink about 100 gallons of milk every day! A whale makes a stream of air when it breathes out.

鲸鱼通过头顶上的呼吸孔呼吸空气。鲸鱼会浮出水面进行呼吸。 那不是鱼!鲸鱼不是鱼类一一它们是哺乳动物。这意味着它们必须呼吸空气。它们还会用乳汁喂养幼崽。一只幼年蓝鲸每天大约要喝100加仑的奶! 鲸鱼呼气时会喷出一股气流。