Animals grow up（成长） in different ways. Some newborn（初生的） animals are helpless but their mothers protect them. A newborn kangaroo is very small. It is only a few centimeters（cm）long. It closes its eyes and doesn't have hair. It stays safe in its mother's pouch（育儿袋）for a long time.

    A newborn monkey can not walk. Its mother carries it everywhere.

    Other baby animals can walk soon after they're born. They learn to run with their mothers when danger is near. A baby zebra can run, an hour after it is born.

    Some baby animals are born in a place that is safe. Baby wolves are usually born in big holes with little light. Other baby animals are born in the open. A baby elephant is often born on open land.

    The tiger is the largest wild cat in the world. It is the king of animals. Tigers often eat 5kg of meat for a meal. Tigers can see very well in the dark. They often hunt at night. Sometimes they can eat 27kg of meat at one night. Most members of the cat family dislike water, but tigers enjoy water. They are good at swimming. Many animals live in groups, but tigers live alone（单独地）, except for（除了） mothers and their young babies. A mother tiger usually has two or three babies at one time. She takes care of them by herself.

    There were eight kinds of tigers in the world, but three of them died out（灭绝）. There are only about 3200wild tigers in the world now because people kill tigers and destroy the places where they live.

    It is Sunday today. We have1classes. We're going to the zoo. How happy we are! We want to take the early bus, 2we get up very early. There are many different kinds of3there. First we go to see the elephants. They have very4noses. The monkeys are5all the time. It's6to count（数） the number. We want to see the pandas. I hear they live only in7before. But now some other countries have8in the zoos. But we can't9any of them today. 10a pity（遗憾）! We go to see many other animals. We have a good time in the zoo.

    I am a little lion. My name is Nancy. I have a big head. I'm yellow. But my favorite colour is green. I like living in the forest. I like to eat little animals. But I live in the zoo now. I don't like the zoo. I get up in the cage（笼子） in the morning. I have breakfast, lunch and dinner in the cage. I go to bed in the cage in the evening, too. People watch me every day. Some boys hit（打） me with stones（石头）. I don't like them. They are not my friends. I can't go out. I want to go back to my friends in the forest. I want to live with them.