参考范文：

　　As a middle school student of junior three, i do sports one or two hours a day, such as doing morning exercises, playing basketball, long-distance running and so on. i think it is very helpful to me. taking exercise makes me healthier so that i won’t be ill very often.

　　what’s more, i also get myself relaxed in different kinds of sports, and then i do the better job in my study in high spirit. by doing physical exercise, i’m becoming stronger and more confident than before.

　　i think it is necessary for everyone to spend some time on sports every day because people’s health is essential in modern life.

　　参考译文：

　　作为一名中学初三的学生,我每天做运动一两个小时,比如做早操,打篮球,长跑等。我认为这对我来说是非常有用的。锻炼使我更健康,这样我就不会经常生病。

　　更重要的是,我也在不同的运动,让自己放松,然后我在学习做的更好在高精神。通过体育锻炼,我变得比以前更坚强,更自信。

　　我觉得有必要给大家每天花一些时间在运动,因为人们在现代生活的健康是至关重要的。