More and more people like bicycling and it is no surprise. It is fun, healthy and good for the environment. Maybe that's why there are about 1.4 billion bicycles and only about 400 million cars on roads worldwide today. Bikes can take you almost anywhere, and there is no oil cost!

    Get on a bicycle and ride around your neighbourhood. You may discover something new all around you. Stopping and getting off a bike is easier than stopping and getting out of your car. You can bike to work and benefit (受益) from the enjoyable exercise without polluting the environment. You don't even have to ride all the way.

    Folding (可折叠的) bikes work well for people who ride the train. Just fold the bike and take it with you. You can do the same on an airplane. A folding bike can be packed in a suitcase. You can also take a common bike with you when you fly. But be sure to look for information by accessing on airline websites. Not all airlines are bicycle-friendly to travellers.

    Health Benefits of Bicycling:

    It helps to prevent heart diseases.

    Bicycling helps to control your weight.

    A 15-minute bike ride to and from work three times a week burns off five kilos of fat in a year. Bicycling can improve your mood (心情).

    Exercise like bicycling has been shown to make people feel better, more relaxed and self-confident. Bicycling is healthier than driving.

    Michelle, a famous lady, has found that more than 25% students are too fat in her country. It is a very serious problem. So she starts a health program to deal with it. The health program is to reduce the amount(数量)of fat students today and in the future.

    The program will get families, schools, newspapers, magazines and TVs to join together and deal with the students' obesity so that students will be at a healthier weight. The program includes: food stores should sell healthier food: schools should serve healthier meals with less fat and should also offer gym classes.

    The lady is trying to fight the students' obesity all over the country because it can cause illnesses and higher health cost. She wants the students to eat right, exercise more and control their weight. She also wants the students to understand it is important to have less sweet food, and drink water, milk and fresh juices, but not to choose cokes. At the same time, she has also set a good example by planting a vegetable garden. She hopes that the garden will encourage more people to plant one, too.

    The health program is really helpful to the students today and in the future. As she says, we cannot always build the future for youth, but we can build our youth for the future.

    Haiyan is 7 years old. Her parents gave her an iPad as a gift for her birthday. A month later，her eyesight（视力）dropped to 300 degrees. This is serious for such a young child.

    Many children in China are facing the same problem: iPad using is bringing problems to their eyesight. The problem is so common that newspapers even call the iPad the "No. 1 killer of children's eyesight!"

    "There are about 30 shortsighted children coming every day, "said Hu Dali, an eye doctor at Guiyang Aier Eye Hospital. "Half of those children have poor eyesight because they have played with phones and iPads for too long. "

    Doctors and scientists say children's vision（视觉）is not yet fully developed and their eyes get tired more easily. The screen of an iPad uses very bright（明亮的）LED backlight. If children look at an iPad screen for a long time, their eyes do not have time to rest. This will make their eyesight worse over time.

    Doctors advise that users should hold their iPads between 40-60 centimeters（厘米）away from them. The brightness of the screen should be comfortable for children. Parents should also stop their children from using an iPad for more than one hour every day.

The weather is getting hotter and hotter. You are thirsty playing basketball or riding home from school. A cold drink may be just the thing. But be careful what you are drinking. Something that looks cool may not be good for your health.

There are plenty of "energy drinks" advertisement on TV. Most of them have beautiful colors and cool names. They tell you they are helpful to your health. Sounds great and lots of people believe them!

But after a careful check you may find that most energy drinks have lots of caffeine (咖啡因) in them. These drinks are especially aimed at young people, students, busy people and sports players. Makers sometimes say their drinks make you better at sports and can keep you awake. But he careful not to drink too much.

Caffeine makes your heart beat fast. Because of this, the International Olympic Committee has limited (限制) its use. Caffeine in most energy drinks is as strong as that in a cup of coffee or tea. Possible health dangers have something to do with energy drinks. Just one box of energy drink can make you nervous, have difficulty sleeping and can even cause heart problems. Scientists say that teenagers should be discouraged from taking drinks with a lot of caffeine in them.

Have you ever heard the saying "Happiness is nothing more {#blank#}1{#/blank#} good health." Health is very important, How can we stay healthy? Here {#blank#}2{#/blank#}(be) three children's opinions.

Lucy: Well, I eat a lot of fruit and vegetables every day. I'm on the school volleyball team. I practice playing volleyball {#blank#}3{#/blank#}(two) a week. Yesterday, we had a volleyball match. It was raining heavily while we {#blank#}4{#/blank#} (have) the match. However, we still enjoyed ourselves.

Eric: My father always cares {#blank#}5{#/blank#} my health. He makes me get up early and run with him every morning. And he hardly allows me to use the computer. He thinks it's bad for my health. He would like me {#blank#}6{#/blank#} (do) some housework with him. Thanks to my dad! Now, I am one of the {#blank#}7{#/blank#} (strong) students in my class.

Rosa: I have many good friends at school. They are all {#blank#}8{#/blank#}(friend) to me. I like playing with them. We always play {#blank#}9{#/blank#} (happy) together. I don't watch TV too often at home. My home is near the school, {#blank#}10{#/blank#} I usually walk to school. I think these good habits are good for my health.