Here is a page from a magazine called Future. Read the following information about things that may happen in twenty years.

    Cars will run on solar power (太阳能) and will be much cleaner and safer. For example, if you are too close to another car or if you are driving dangerously, your car will slow down or stop by itself.

    New cities will have to be built in the sea. Some cities on water will have two levels(层). People will live on the upper level, the lower level will be used for traffic, shops and factories.

    Biotechnology(生物技术) will make food better and healthier. Plants without insects or illnesses(病虫害) will be developed. The taste of fruit and vegetables will be better and food will be kept longer.

    Many new ways to cure(治愈) illnesses will be found. People will use products of genetic engineering (基因产品) to cure more illnesses. However, some new illnesses will appear.

    Songs help memories

    The power of music

    Most people can remember important news stories clearly, whether it was the murder of President Kennedy in the US or 9/11.But now psychologists Martin Conway and Catriona Morrison, from the University of Leeds in the UK, are investigating how music can create “autobiographical memories” of the main events in our lives. The study is online. People have to choose a song by the Beatles and describe the memories that they have when they listen to it.

Reminiscence bump

    Morrison explained that they looked at different age groups and their memories. We often remember more from when we are teenagers and this is called “the reminiscence bump”. This is the time in your life when you form your idea of who you are. For older people who have memories related to the Beatles' music, most of those memories are from when they were teenagers. But younger people also had clear personal memories from their past.

    She loves you

    This study was different from other memory studies, because people remembered events from their past with lots more details. Morrison explained:     “It was like people had travelled back to the past, and they had very clear memories of things that had happened. When they heard a song like She Loves You by the Beatles, they could remember one night in autumn 1963.They remembered what they were wearing, what the weather was like and what their friend said to them. You get a lot more information than if you just say, ‘tell me about a night you remember'. ”

    The study has found that music could be used with people who have problems remembering the past. “You could use music to help improve people's ability to remember,” said Morrison. “In the future, we would like to do more experiments to see how useful music is in helping people to remember the past, and compare it to other things that might also help.”

    When we think of paper, we think of newspapers and books. But there are many other uses. Only half of the world's paper is used for books and newspapers.

    Paper is very good for keeping you warm. You have perhaps seen homeless men sleep on a large number of newspapers. In Finland, it is sometimes-40℃ in winter. The farmers wear paper boots(靴子)in the snow. Nothing could be warmer.

    Each year, more and more things are made of paper. We have had paper cups and plates for a long time. But now we hear that chairs, tables, and even beds can be made of paper. Besides paper boots and shoes, you can wear paper hats, paper dresses, and paper raincoats. When you have used them once, you may throw them away and buy new ones.

    The latest use of paper seems to be paper houses. These are not small houses for children to play in, but real, big houses for people to live in. You can buy a house with three rooms for about 500 dollars. You can put it up by yourself in a few hours, and you can use it for about five years.

    There is one thing. We can't see it. Sometimes we can hear it and even feel it. Without(没有) it, all the living things will die. Do you know what it is? Oh, it is air.

    However, what's the air like today?

    In cities, there are too many people and too many cars on the roads. The cars send out (排放) a lot of bad gases(气体) In cities, there are many chemical factories(化工厂). They send out terrible smoke every day. This kind of smoke is very bad for our health. Now the air is becoming worse and worse. Every day, we breathe (呼吸) the bad air in and out. This is very unhealthy for us and it makes us feel sick.

    To keep us healthy, we have to go to the countryside to breathe more fresh air. Or we can go up hills to get more fresh air.

    Different weather makes people feel different. It influences health, intelligence(智力) and feelings.

    In August, is very hot and wet in the southern part of the United States, People there have heart trouble and other kinds of health problems during this month. In the Northeast and the Middle West, it is very hot at some times and very cold at other times. People in these states have more heart trouble after the weather changes in February or March.

    The weather can also influence intelligence. For example, in a scientific report, IQ (智商) of a group of students was very high when a very strong wind came, but after the strong wind, their IQ was 10% below. The wind can help people have more intelligence. Very hot weather, on the other hand, can make it lower. Students in many schools of the United States often get worse on exams in the hot months of the year (July and August).

    Weather also has a strong influence on people's feelings. Winter may be a bad time for thin people. They usually feel cold during these months. They might feel unhappy during cold weather. But fat people may have a hard time in hot summer. At about 18℃, people become stronger.

    Low air pressure may make people forgetful. People leave more bags on buses and in shops on low-pressure days. There is a "good weather" for health. People feel best at a temperature of about 18℃.

    Are you feeling sad, tired, forgetful, or unhappy may be the weather's problem today?