People usually check whether their keys, purses and phones are with them before going out, but many people in China now have one more important thing to take--a mask(口罩). They hope it can protect them 1 terrible air.
Many cities in China saw a lot of foggy days in April. In Beijing, there were eight days in April full of smog. It is dirty air 2 looks like a mixture of fog and smoke. The smoke is mainly from cars and factories in cities. Poor air is bad for people's health, 3 for children and old people. They fell ill easily and the 4 were full of people. They had problems with their noses and lungs.
So it's necessary 5 people from doing so many bad things to the environment. For example, people should use cars less and 6 burn lots of coal and gas. Government needs to take measures to make factories stop pouring 7 waste air into the sky.
Three students from No. 4 High School in Beijing 8 a report to advise how to protect the environment. They suggested 9people should plant more trees and act off fewer fireworks for celebration. We hope more people will join us in 10 a difference. In this way, the blue sky will certainly return for good.
When you're feeling down, the right song can make you smile. It can also calm you down when you're worried. Music may also help make your brain work better. It may even help keep you healthy.
Why does music have these powers? It may be because people's bodies have natural rhythms (节奏). Different kinds of music can influence you in different ways.
Most stores play soft music, because soft music can make people relaxed and stay longer in a shop. And the longer shoppers stay in a store, the more things they buy in it. So, stores try to play soft music to make people buy more things.
For sick people, music can do more than just help them relax. It may help make them get well again. Doctors believe that music is just as important as medicine in treating (治疗)patients.
When you're sick, try to listen to the soft and relaxing music. If you're upset, play a favorite song and tell someone how it makes you feel. A group of sad teenagers shared their favorite songs with each other. Each teen explained why he or she liked the song. After talking about it, the teenagers said they felt better.
Many studies have tried to explain how music affects learning. Don Campbell, an expert on the powers of music, believes music can make people, even babies, smarter, healthier and happier.
Campbell wrote the book The Mozart Effect in 1997. However, not everyone believes the Mozart Effect. And people believe more research is needed to prove that music has these effects.
An illusion(错觉) is something that fools the senses or the mind. An illusion may make you something exists (存在）when it really (do) not. It may be something that appears to be one thing, but it's really something else. David Copperfield calls (he) an illusionist. He is someone who makes or creates illusions.
Many people have an interest in magic, but (many) of them are not performing and getting paid for it by age 12. Nor are they teaching college classes in magic at age 16. Copperfield was the (young) person ever to be allowed to join the society of American Magicians. When he got to college himself, Copperfield got the leading part in a play called Magic Man. Besides acting and singing, he created all the magic in the show. The show ran for longer any other musical in Chicago's history.
Copperfield is a huge (succeed) as an illusionist, but he has other projects as well. He said that his best work is Project Magic. Copperfield developed a number of tricks done with the hands. These tricks can help hospital patients who need (improve) their physical condition. Learning to do the tricks also build confidence. Patients in the program can speak (proud) that they can do tricks that healthy people can't do.
Like many magicians, Copperfield is interested the history of magic. He has created a museum and library in which books, articles and old medical equipment keep and shown. By keeping track of history, Copperfield hopes to save magic for the future.
