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

    Cars will run on solar power (太阳能) and will be much cleaner. They will be much 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.

    People don't like trash. Trash is smelly, dirty, ugly, broken and useless. That's why we throw it out. But everyone knows that trash influences our environment. It can pollute our land, water and air. So it's important to recycle our trash as much as possible.

    Some Americans were very interested in recycling and they were curious about what really happened to their trash. So, what did they do? They became detectives and decided to "Follow that trash!"

    They took some items out of their recycling bin and put electronic tags (标签) on them. The tags sent signals to a computer so people could follow their trash on its journey. They found that some trash only travelled a few kilometers but much of it went into landfills.

    Waste management companies in America think this detective work will be helpful to them. Dealing with waste is very expensive and this u trash tracking" will help them to become more useful. It will save their time and money.

    However, the trash detectives say it's also important to reduce the amount of trash we produce. After all, if we produce less waste, we won't have to worry about where it goes.

    A small robot may help children who are ill in hospital or at home. These children may feel lonely without their friends or classmates. The robot takes their places at school. Through the robot, the children can hear their teachers and friends.

    The robot is called AV1. A Norwegian company called No Isolation created the robot. Dolva explains how the robot AV1 works. She says from home, children use a tablet or phone to start the robot. Then they use the same device to control the robot's movements. At school, the robot becomes their eyes, ears and voice.

     "So, it sits at the child's desk in the classroom and the child uses a tablet or a phone to start it and control its movements and talks through it. So it's the eyes, the ears and the voice at school." The robot is equipped with speakers, microphones and cameras that make communication easy.

    AV1 is large and looks like a human for a reason. Dolva says this is important because the robot is supposed to be a friend of the children. "It can't be just a tiny camera because the other kids can't pick it up and take it with them. This is supposed to be their friend." And robots are, quite simply, cool. Hopefully AV1 will help some children feel less lonely while they are not in class.

    Many people know that rubbish is a big problem on planet Earth. What many people don't know is that junk has become a problem in outer space too.

    According to BBC News, there are more than 22,000 pieces of space junk floating around the earth. And these are just the things that we can see from the surface of the earth by telescopes (望远镜). There are also millions of smaller pieces of junk that we can't see.

    Objects, like bits of old space rockets or satellites, move around the planet at very high speeds, so fast that even a very small piece can break important satellites or become dangerous to astronauts. If the smallest piece of junk crashed into a spaceship, it could damage it.

    To make things worse, when two objects in space crash, they break into many smaller pieces. For example, when a U.S. satellite hit an old Russian rocket in 2009, it broke into more than 2,000 pieces, increasing the amount of space junk.

    To reduce additional space junk, countries have agreed that all new space tools can only stay in space for 25 years at most. Each tool must be built to fall safely into the earth's atmosphere after that time. In the upper parts of the atmosphere, it will burn up.

    Many scientists are also suggesting different ways to clean up space junk. In England scientists are testing a metal net that can be fired into space junk. The net catches the junk and then pulls it into the earth's atmosphere to burn up. The Germans are building robots that can collect pieces of space junk and bring them back to Earth to be safely destroyed.

    "The problem is becoming more challenging because we're sending more objects into space to help people use their mobile phones and computers," says Marco Castronuovo, an Italian space researcher.

    "The time to act is now. The longer we leave the problem, the bigger it will become," he says.