Diet and way of life are often a problem for teenagers.    1    ,if you eat the right food and exercise regularly, you can feel better, look better and have more energy. So healthy eating along with regular exercise is    2    （probable）the first step to become fit.

As a teenager, it is important to give your body the energy    3    needs. For a healthy diet, you should eat mostly rice, bread, vegetables and fruit. The most important thing to remember when you choose food is to protect yourself from some tricks.    4    number of people who want to make quick money are always fooling you into    5    （believe） what they say. Don’t    6    （trick）by them. What you need is just to trust a diet that is right for your body.

Exercise is also something on     7     you can depend to make you look good, feel good and be healthy. It is obvious that exercise is    8    （help）to you. When you exercise, you build up the    9    （strong）of your muscles and your body produces some chemicals that make you feel peaceful and relaxed.

Follow the suggestions above,    10     you will look and feel much better in no time at all.

Does     1     matter if you don’t take your breakfast? Recently a test was given in the United States. Those tests included people of different     2     from 12 to 83. During the experiment, these people    3    (give) all kinds of breakfasts, and sometimes they got no breakfast at all. Special tests were set up to see     4     well their bodies worked when they had eaten a certain kind of breakfast. The results show that if    5    person eats a proper breakfast, he or she will work with better effect     6     if he or she has no breakfast. This fact appears to be     7     (especial) true if a person works     8     his brains. For example, if a student eats fruit, eggs, bread and milk     9     going to school, he will learn more quickly and listen with    10     (much) attention in class.

Health is     1     most important thing in the world. Nothing is more important than health. If one takes away our money, houses, cars, or even our clothes, we can still survive.     2     if our health is taken away, it is certain that we will die. That is why we always try to eat in a     3     (health) way and exercise often. 

How can we keep healthy? In order to eat healthily, I usually avoid     4    (eat) foods high in fat, like French fries or cookies,     5     are junk foods. I eat lots of vegetables and fresh fruit. In addition, I only eat a little meat. 

    6     the other hand, doing exercise is very important. Taking exercise every day     7    (help) us build a strong body. Regular exercise is an important part of keeping me healthy. 

What’s more, I think friends are an important part of one’s health. I always feel better when I am with friends than alone. When I am with friends I always laugh. Laughing is also an important part of health. It is good     8    (stay) with my friends. By eating properly and exercising     9    (regular), I can keep my body at a proper weight. By spending time with my friends, I can keep my mind as well as my body happy. These things sound easy to do, but not many people can manage     10    (they). I think a strong will is necessary if we want to keep fit.

Running a few kilometers each day     1    (be) good for our health. However, new research says running too much could be bad for us. Running long distances    2     (regular) for many years could make our life shorter, not longer. The study is from the Minneapolis Heart Institute. A researcher said too much running can create plaque (斑) inside your heart,     3     can lead to heart disease. He wrote that running too much for many years takes away the good things from exercise. He     4     (add) that the risk of heart disease could be     5     same as someone who never exercised.  

Researchers looked     6     the health and training of 3, 300 runners over the age of 35. 70% of them ran over 30 kilometers a week. Men who ran marathons for 25 years had 62%     7     (much) plaque in their hearts than men who did little or no exercise. Another doctor said he felt cheated. He started running marathons in 1967. He used     8     (run) 60 kilometers every week. He said, “I thought I was out there exhausting     9     (me), building an absolutely strong heart.” The doctor advised     10     (exercise) frequently. So please don’t overdo things.

Most of us claim we don’t have time for exercise. However, many experts say that exercise plays an important role in making our body healthy. Being     1     (physical) active offers many     2     (advantage). As a physical reward, exercise can reduce weight and the risk of heart disease. Exercise also brings good effects mentally. It can make us feel refreshed and happy, helping us increase our life quality. Actually, exercise can     3     (do) in simple ways. For example, we can take the stairs rather than the lift. Overall, it’s hard to find time     4     (exercise) in our busy lives, but every little bit helps.