五、文意選填 
    “An apple a day keeps the doctor away,” is a __46___ about health. This is actually a simple and realistic tip to help people stay mentally sharp and active. People ___47___ believe that eating fast food all the time is bad for health. And lately, more and more research done by scientists are beginning to give ___48___ to this idea. ___49___ the help of modern science, people are making efforts to get a good diet in order to ___50___ their health.     It is important to start good eating habits when you are young. Several studies have shown that children who eat too much candy and fat have trouble ___51___ focused in school and have less energy. On the other hand, eating well ___52___ the brain to work faster and better. That’s why doctors have always advised us to get in the habit of eating fruits and vegetables, ___53___ to cut down on unhealthy food, such as hamburgers, hot dogs, French fries, and so on.     ___54___, eating well requires some effort. But, if people start eating ___55___ and working out often, they’ll have a better chance of living a long and healthy life.
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