You without doubt sleep every day, but do you have a dream every night? How much do you know about dreaming? “Sleep are 1 than dream. We all need to dream.” some scientists say.

Dreams take up about one quarter of our sleeping time. People have several dreams every night. Dreams are like short films. They are usually in color. Some dreams are like old films. They come to us over and over again. That 2 because the dreamer is worrying about something. Sometimes dreaming is a way of trying to find an answer.

Some people get 3about their work from dreams. They may have been thinking about their work all day. These thoughts can carry into dreams.

Sometimes we4with a good feeling from a dream. But often we can't remember the dream.Dreams can disappear quickly from memory.

­5dreaming can be harmful. The more we sleep, the longer we dream. The mind is hard at work when we dream. That is why we may have a long sleep and still feel tired.

    In the future, some tiny computers would be put in our heads. This can help people a lot. 1 the tiny computers, the people who have ear disease will be able to hear. And those with eye diseases can 2. The tiny computers will not be just for 3 people. Most of us will have one to make our life 4. For instance, if we have it, we will be able to think 5 and we can memorize more.

    For every student，computers can do 6 things. Perhaps in the near future, they 7 schoolbags. The students just need to carry a small computer to 8, because the computer takes the place of the textbooks, exercise books and note books. The teachers will check their homework with computers, 9. But this can cause another problem because 10 will be easier for students to copy each other's homework.

    Four students are talking about the future after class.

    “In 2050, our life will be much1than it is now. The sky is bluer and water is clearer. We can2the fresh air every day. Humans and animals3the world peacefully. ” says Zhang Tao, full of hope.

    Wang Yan thinks that it is not a4to travel to the moon for a holiday. We eat healthy food every day. At that time, everyone will enjoy a5life.

    Li Yuan Yuan believes that people will have more free time because robots (机器人) will be very popular and will do many things6people. And we will build new7on other planets (星球). Maybe we can chat with each other in our new homes.

    Zhao Kai thinks that no animals will die out because of cloning (克隆). There will8no pollution (污染). The whole world will be one big9. As time10, we'll live a much easier and better life.

    Their teacher Mr. Chen tells them to work hard for their dreams and future. “Nothing is impossible. ” says Mr. Chen.

    In the years, I will be 24 years old. Our city will be a1living place then. There will be many tall buildings and trees. Many people will visit our2. Almost every family will have one or two solar(太阳能的)cars.

    People will3their cars to work every day. The libraries will have more computers, and people can 4books on them. The restaurants will have robot waiters to bring you 5. Schools will have more teachers from England to6you English. With the7of new transportation(交通方式), travel will be fast. You can only need two8to get to Africa! Machines and robots will do heavy and difficult jobs9we will have more time. What do you think? Do you think this idea about life10will come true?

    Tigers are strong and dangerous. But now, the big animal is calling for our1.

    There were once eight kinds of2in the world, 3three died out during last century. In the last 70 years, the number of Siberian tigers(东北虎) has gone from as many as 300 to somewhere 418 and 22.

    WWF started a programme recently(最近) to put an end(停止) to tiger poaching(非法狩猎) and 5wild tigers. China, together with 12 other countries, has joined in.

    The Siberian tiger is already6of the world's most endangered(濒危的) animals. If the government doesn't take any action, it's quite7that there will be no more Siberian tigers in China in 10 to 20 years. Animals such as deer, sheep and wild boars(野猪) are the tigers' main food. There isn't enough8for wild tigers because of the hunting of these animals. So the 9 thing people can do is save the animals which tigers eat." To protect the tigers, we need to call on more people to 10 eating and hunting wild animals."