One possible version:

My Spare Time

I am a middle school student. Though I’m busy with my lessons, my spare time is still colorful.

After school I usually play sports. Sports help me to keep healthy and study better. I often do some reading in the evening. I think books are our best friends. They give us much knowledge that we can’t learn at school. Sometimes I watch TV or surf the Internet. I find it’s a good way to relax myself. At the same time it can also help me open up my eyes to the outside world. At the weekends I often help my parents with the housework, so they can have a good rest.

I enjoy myself in my spare time.

题目分析：这是一篇提纲类作文，题目中给出的材料较为齐全。写作中注意将自己的业余时间介绍清澈。根据材料可知，本文主要用一般现在时态，第一人称进行叙述，写作中主语时态及主谓一致等问题。注意不要遗漏要点，做到语句通顺。为了使意思更加连贯可适当使用连接词。

【亮点说明】本文在写作中使用了很多固定句式，如：be busy with忙着做某事；watch TV看电视；at the sametime同时；have a rest休息等短语和句式。作者并且在写作中巧妙的使用了连词，序数词，使得本文看起来逻辑清楚，条理分明。所以在学习中，我们应注意总结,牢记一些固定句式及短语,写作时就可以适当引用,使文章的表达更有逻辑性,更富有条理.