在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，词首字母已给。
Teenagers are always stressed out now. They are often too busy to think about their diets and exercise. The truth is, healthy eating, along with regular exercise. Is the only way to k___83_fit.
During your teenage years, it is important to give your body the energy it needs. Teenager girls need about 2,200 calories(卡路里)a day and boys need a bit more. Doctors suggest 2,800 calories for teenage boys. 50% of your calories should come f 84 rice, bread, vegetables and fruit. You also need to d 85 a lot of water, six to eight glasses a day. Enough water will improve your skin and give you healthy hair.
Exercise can help to make you look good, feel good and be healthy. Scientists suggest that teenagers should spend at l 86 30 minutes exercising every day.
When you exercise, your body produces something. It makes you feel r 87 and energetic. It can even help you sleep better at night and let you pay more a 88 when you study.
Let’s eat healthily and take regular exercise.
答案：小题1: k_______ 小题2: f _______ 小题3: d _______
小题4: l _______ 小题5:r _______ 小题6: a _______
小题1:keep
小题2: from
小题3:drink
小题4: least
小题5: relaxed
小题6:attention
小题1:本句的含义为那是唯一的保持健康的方法吗，故本句空格处填保持的单词keep。
小题2:本句的含义为你的百分之50的卡路里应该来自于大米，面包，蔬菜和水果，故本句空格处填从的单词from。
小题3:本句的含义为你也需要喝许多的水，故本句空格处填喝的单词drink。
小题4:本句的含义为青少年每天至少花费30分钟来锻炼，at least表示至少的含义，故本句空格处填least。
小题5:本句的含义为锻炼可以使你感到放松，故本句空格处填放松的单词relaxed。
小题6:本句的含义为当我们在学习的时候让我们更多的注重锻炼，故本句空格处填注意的单词attention。