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Flu easily spreads from one person to another． This is especially true to people who are weak． If you are weak， you are more likely to catch flu easily． Do you know how you can avoid flu?

    Keep in good health

    The best treatment（疗法） to illness is a good health． You can eat everything you want but make sure that your diet is healthy． The healthier you are， the better it is for you to avoid any type of illness around． Most doctors suggest plenty of fresh fruit juice and water in order for one to avoid flu．

    Stay away from people with flu

    If a member of the family or a friend has flu， stay away from him/her until he/she is well． Flu is very communicable（传染的）and you can catch it by going with the person with flu． Wear a mask and avoid using things that the person with flu is using．

    Exercise

    Exercising will make you stronger， which means a stronger immune （免疫的） system too．Exercise often so that your body will keep healthy． It doesn't matter what kind of exercise it is．What is important is you are making your body stronger to prevent illness from attacking you．

    Be happy

    Happy people are healthy people． Their life is stress﹣free， so they are more likely to be safe from illness． If you are unhappy， which affects your immune system， you will easily get sick．

    Avoiding the flu is easy． Just boost（增强） your immune system and it will take care of the rest．

（1）The weak people may catch flu easily．　　

（2）We should eat the right food to keep in good health．　　

（3）We needn't wear a mask to keep away from people with flu．　　

（4）Happy people are healthy people． If you are unhappy， you will easily get sick．　　

（5）It's not important for us to exercise and boost our immune system．