I've got some information for everyone who are going to Britain next month. As you know, you'll be staying with a family for two weeks. Now the most important thing is money. You should take about ￡30 in cash(现金) and about ￡200 in traveller's cheques(支票). Then when you arrive at the airport, you'll be met by your host family. You must remember to wear a red shirt so that the family can find you easily. I've told them to look out for the red shirts. You'll also need to take with you four photos of yourself and, of course, it's very important that you take the school letter. While you are there, if you have any problems, please call our agent. I'll give you her office phone number. It's 580-4436 and the person to ask for is Mrs. Belcher. She's in the office from 9: 00 to 17: 00 everyday. OK! That's everything. Have a good trip.

    Susan is 14 years old and she is an American girl. She is one of my best friends. She is interested in Chinese and good at it. Every summer she travels with her parents. She believes（相信） that traveling is an important part in her life. She likes London best because it is both clean and beautiful. She knows that China is a large country with lots of interesting places. This July, her family are coming to China. I am very happy to know that they will first come to my city. They will stay here for three days. I will take them to visit the city. Then they will fly to Beijing. I am sure they will have a nice time in China.

    ①Life in the future will be different from life today.

    But what will life be like in the future? The population(人口)is growing  A  . There will be many people in the world and most of them will live to over 100 years old. Computers will be very  B  and useful, and there will be computers in every home. Traveling will be very cheap and  C  .

    And many people will go to other countries for holidays. There will be changes in our food, too. There will not be________(many)room for cows and sheep, so meat will be very expensive. ②也许没有人会每天都吃它。They will eat many fruits and vegetables. Maybe people will be quite healthy. Work in the future will be different, too. Robots will do hard work. So many people will not have enough work to do.

    Language is always changing and developing. This isn't a bad thing. If English hadn't changed for a long time, we won't have words to describe telephones, washing machines, computers or some other new things.

    Language changes for several reasons. First, it changes because the needs of its speaker change. New technologies, new products, and new experiences need new words to express them clearly. Another reason for change is that different people have different language experiences. People use different sets of words and expressions, because they have different ages, jobs, education levels(水平) and so on.

    How does language develop then? On the one hand, many of the languages changes begin with young people. When young people communicate with others of their own age, their language grows in grammar, words and expressions that are different from the older people's. Some have a short lifetime but others can influence the language for long. On the other hand, we get new words in many different ways. We borrow them from other languages, we create them by making words shorter or combining words and we make them out of proper names.

    Languages that don't change over time are considered dead languages. The fact that English changes so much shows that it is alive and well.

Do you often see ants? If the weather is warm, you may see them under the stones. If it is cold, many ants will be in their house under the ground.

Most of the ants are workers. They have lots of work to do. They look for food and take care of the young ants. Each family of ants has a queen ant. The queen doesn't work at all. She is important because she lays eggs. These eggs will become new ants.

There are many kinds of ants in America. One kind of these is very strong. They can kill and eat elephants. They move in groups. They eat all the animals they meet while moving on their way. When these ants come near, people leave their homes.