根据其内容简略回答问题。

    Canada Geese are large blue and white birds. When autumn comes, they have to fly south where the weather is warmer. The winters are so cold in Canada that the birds will die if they stay there.

    Last spring, Bill Lishman found sixteen young Canada Geese on his farm. They had lost their parents. Bill thought, “These young birds won't know what to do in the autumn.” He had a small plane and he decided to teach the birds to fly by following him. All through the summer, he went on short trips in his plane and the young geese flew after him.

    When the cold weather arrived in the autumn, Bill flew to Virginia in the United States--600 miles south of his home in Canada. The geese followed him all the way. Bill left the geese in Virginia and he returned home. This spring, Bill was waiting for the birds to come back. They didn't arrive, so Bill flew to Virginia to get them. He looked for them for two weeks but he couldn't find them. When he arrived back home, he found the geese waiting for him. They had found their way home without him!

    I am an apple. I'm a kind of sweet1You can find me grow in many places of the world, but I can't grow well in very hot places2 very cold places.

    I am not like my cousins 3and bananas. I am rounder than a pear and bananas are4than me. I am delicious,5people all over the world like to eat me. They can usually eat me6washing me. They can also cook me to 7all kinds of food, sometimes they put me in cans（罐头）to send me to other places of the world. Almost everyone can have 8 to buy me because I'm so cheap.

    I can also help people get9 There is a saying10English: An apple a day keeps the doctor away. Don't you think that I'm very great? I have many vitamins（维生素）inside, they are 11for you. I really wish to make you happy and healthy. so don't forget to 12me as often as possible（尽可能经常地）.

    But I also need your13, if you want to make me taste better, you must14 me well. Thank you for your love. I'll try to grow well and15sweeter. Then you will like to eat me a lot more.

C

    Rivers are one of our most important natural resources(资源). Many of the world's great cities are located on rivers, and almost every country has at least one river through it that plays an important part in the lives of its people.

    Since the beginning of history, people have used rivers for transportation. The longest one in the United States is the Mississippi. The lifeline of Egypt is the Nile. To the people of India, the Ganges is great, but it is also important for transportation. Ships can travel along it for a thousand miles. Other great rivers are the Congo in Africa and the Mekong in southeastern Asia. The greatest of all for navigation(航海), however, is the Amazon in Brazil. It is so wide and so deep that large ships can go about two thousand miles up it.

    Besides transportation, rivers give food, water to drink, water for crops, and chances for fun and recreation for the people who live along their banks. In order to increase the supply of water for crops, engineers sometimes build a dam(坝) across a river and let a lake form behind the dam. Then people can use the water not only to irrigate(灌溉) their fields but also to make electricity for their homes and industries.

    However, large cities and industries that are located on rivers often cause problems. As the cities grow in size and industries increase, the water in the rivers becomes polluted with chemicals and other materials. People are learning the importance, however, of doing more to keep their rivers clean if they want to enjoy the benefits of them.

    Paulina Cortes is a teacher in San Jose, California. One day, she handed out masks (面罩) to farm workers in Lodi. She volunteered to do this because the air quality (空气质量) is still poor after a big fire.

    "I just got home and feel really tired now. Today I spent my day in Lodi handing out masks to farm workers," she wrote on the Internet. "I raised some money. Then I drove through San Jose and all the way to Salinas to buy enough masks I needed. This is important. The story here isn't that I handed out masks; it's that there are hundreds of people who are working in dangerous environments with no protection (防护). And no one even knows about it."

    Paulina also put some photos on the Internet, and they were picked up by the news. Many people were surprised at the news, and they knew what happened to those farm workers for the first time.

    The next day, Paulina added, "I traveled through Lodi and Stockton not just to hand out masks, but to help the farm workers understand the pollution. In Lodi yesterday the workers were picking fruit in such dangerous environments. None of them even knew this. Not too far from our homes, hundreds of people are working in these environments. I will buy more masks and send them to a Stockton farm worker. He helped me hand out masks yesterday."

    Thank you, Paulina, for caring and trying to make a difference.

    I like Saturday and Sunday because I don't have to go to school. 1do my mum and dad. On Saturday and Sunday I do not need to get up 2. Then I eat a light breakfast at about 8: 30. I always finish my homework on Saturday morning. In the afternoon, I do some housework. I also clean my own room and wash my own clothes. I think doing some houseworkis 3. In the evening, my family usually watch TV together and we talk a lot about the TV programmes. On Sunday, my parents and I go to see my grandparents. We go there by bike. It's a kind of good 4. Sometimes we go to the cinema or parties, 5we have a wonderful time at weekends.