1.体育运动的好处.
2.体育运动可能带来的副作用.
3.我参加体育运动的体会.
范文：
to a chinese, the task of learning english well is not easy. so i, like many other english learners, have met with difficulties in learning english during the past seven years. but i managed to overcome them and made much progress.
the spelling and meaning of words can be said to be the first difficulty i met as a beginner. but i found our my own way to deal with them. as to spelling, i never copied a new work again and again to remember it, but tried to find its relevance to the sound. in fact, as long as i can read the word out, i can write it out. as to the meaning, i rarely recite its chinese translation but often put the word into the sentence to learn its meaning. moreover, if you use a word quite often, its spelling and meaning will be no problem. after all, we are learning english in order to use it.
grammar and idioms may be another