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Bees live in a house that is called a hive. There are three kinds of bees: workers, drones (雄蜂) 1queens. Only one queen bee can live in each hive. If she is lost or dead, the other bees 2 their work.

Workers are very clever and busy. They all join together3 small rooms called cells of wax for their honey. Each worker bee does its own work. Some go out and collect honey from the flowers; 4 stay at home and work inside the hive. The cells5have six sides are made by worker bees. Did you ever look into a glass hive and see them while at work? It is 6to see how busy they always are. Before winter comes, all the drones are driven from the hive7 they don't eat the honey they did not collect.

It is not safe 8 children to be too close to bees. Bees have painful stings they use in their defense (防御).

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    Farley worked for the Canadian government. One day. he was 1 to learn more about wolves(狼). Do wolves kill lots of caribou(北美驯鹿)? Do they kill people?

    They gave him lots of food and clothes and guns. Then they put him on a plane and took him to 2. The plane put him down and went away. There were no houses or people in this place, but there were lots of animals and lots of wolves.

    People tell terrible stories about wolves. They say wolves like to kill and eat people. Farley remembered these stories，and he was 3. He had his gun with him 4.

    Then one day, he saw a group of wolves. There was a mother wolf with four baby wolves. A father wolf and another young wolf lived with them.

    Farley watched these wolves every day. The mother was a very 5 mother. She gave milk to her babies. She gave them lessons about life. They learned how to 6 food. The father wolf got food for the mother. The young wolf 7 the children. They were a nice, happy family-a wolf family. Farley did not need his 8 anymore. In a short time, he got on well with the wolf family. Farley watched them for five months. He learned many new things about wolves. He learned that many stories about wolves were 9. Wolves do not eat people, and they do not eat many large animals. And he also learned bad things about men. It was men who killed many caribou and wolves.

    Later, Farley wrote a book about wolves. He wanted people to 10 them and not to kill them.

    We live in computer age(时代). People 1 scientists, teachers, writers and even students use computers to do all kinds of work. But more than 30 years ago. 2 couldn't do much. They were very big and expensive. Very few people were 3 in them and knew how 4 them. Today computers are smaller and 5. But they can do a lot of work. Many people like to use them.

    Computers become very important because they can work 6 than people and make fewer mistakes. Computers can 7 people do a lot of work. Writers now use computers to 8. Teachers use them to help teaching. Students use them to 9. Computers can also remember what you 10 them. Computers are very useful and helpful. They are our friends. Do you want to have a computer?

    There was a small village near the mountain. There were a lot of trees in the mountain. People in the 1always got something from the mountain, such as animals and trees. When they wanted to 2a house, they cut down the trees. And they also killed the animals for 3. Trees were very 4in their daily life. They made tables, chairs 5beds by cutting down the trees. In addition, when they 6meals, they still used some trees for wood. However, they only cut down trees but 7planted new trees. So the trees were fewer and fewer and the animals were becoming 8as well.

    One summer, it rained 9in the village. The rain lasted for about a week. The soil and the stones on the mountain fell down and soon 10the whole village. They finally realized they couldn't only cut down trees but also needed to protect them.

    Natural resources that we use are things that come from the Earth.

    Our natural resources are limited(有限的）. This means that they will not1 forever. Some are renewable, like when you plant a new tree when you2 one down. Others are not renewable, like when you dig coal(煤）out of the3. Once it is used, it is gone.

    People realize the4 that the Earth's natural resources are limited, and people can do things to help conserve(节约）those resources. 5 you try to conserve a natural resource, you try to use less of it so it does not run out so 6One way that people conserve fuel, like gasoline, is by riding a bicycle or walking when the 7 is short instead of driving everywhere.

    Water is a very important natural resource because we all need it to stay 8. We can conserve water9 making sure that the pipes and taps do not leak(漏）. We can also make10 choices to conserve water, like only using the dishwasher or washing machine when they are full. Everyone can make contribution to protecting natural resources.

    Many people like to watch TV. Watching TV is one of the most important activities of the day. TV1the outside world closer to people's homes. Some people say the world is smaller than before because of TV.

    What' s going2in other countries? How do people live in faraway places? Is there a good sports game somewhere? What's life like in the deepest part of the3? If you want to4these and other questions, just turn on the TV and watch it. Of course, people can also learn through reading or listening to the radio. But TV can help them learn better and more easily, because they can hear and watch, too. TV can give5new ideas. It's a wonderful thing.