假如你是李華， 你的英國筆友 Ben 飽受肥胖的困擾， 他向你求助， 詢問如何保持健康。請你根據以下要點提示， 給他回復一封郵件。
要點提示：
（1）飲食： 多吃水果蔬菜， 拒絕快餐。
（2）鍛煉： 堅持每天鍛煉， 但是要適量。
（3）作息： 保證充足睡眠， 決不熬夜。
（4）其他. . . .
參考詞匯： stay up too late 熬夜要求：
（1）詞數：80-10（郵件的格式及開頭已給出， 不計入總詞數）。
（2）要點齊全， 行文連貫， 可適當發揮。
Dear Ben，
    I'm sorry to hear that you are having trouble with your weight. I'd like to share some good ways to _____.
Yours，
Li Hua

【考點】安全與健康．

【答案】Dear Ben
I'm sorry to hear that you are having trouble with your weight. I'd like to share some good ways to keep healthy with you.
First， eat more fruit and vegetables. Say no to fast food such as hamburgers and chips .Eating too much of them may be harmful to your health. Second， do exercise every day. Find out your favourite sport and keep doing it. But remember not to do too much at one time. Third， get enough sleep. As a teenager， you should sleep at least 8 hours every day. Never stay up too late. Finally， try to do things that make you happy such as talking with your friends and enjoying a relaxing movie.
I hope these rules will be useful for you.
Yours，
Li Hua