座右銘：長風破浪會有時，直掛云帆濟滄海。就讀學校：湖北大學附屬中學九年級（1）班指導(dǎo)老師：陳艷

Nowadays,many middle school students live very busy lives and don’t get enough exercise.

Here are several reasons.Firstly,most students have tremendous demand of schoolwork to do so that they don’t have enough time.Secondly,many students are afraid to get injured in exercise.Thirdly,some students spend much time on TV or computer.They don’t pay attention to their health.

However,exercise has positive influence.Exercise is good for health.Exercise is a good way to relax,too.Exercise can also make our life more colorful and help us study more efficiently.

So,I suggest that students spend at least 30 minutes doing exercise,four times a week.