题目内容：

根据短文内容及首字母提示，填写所缺单词，使短文意思完整，每空限一词。(10分)

Teenagers live very busy lives now and often forget to think about their diets and exercise．The truth is, healthy eating along with regular exercise is the only way to k  1.       fit．

During your teenage years, it is important to give your body the energy it needs．Teenage g2.      need about 2,200 calories a day and boys need a bit m  3.      —doctors suggest 2,800 for teenage boys．50% of your calories should come f 4.       rice, bread, vegetables and fruit．You also need to drink a lot of water, 6 to 8 glasses a day．Drinking e  5.   water will improve your skin and give you healthy hair．

E  6.       is something that can help to make you look good, feel good and be healthy．Experts(专家) suggest that teenagers s  7.       at least 30 minutes exercising, five times a week．W 8.       you exercise, your body produces something that makes you feel r  9. ．It can even help you sleep better at night and let you pay more a  10.  when you study!