参考例文：
At present，playing computer games is becoming more and more popular with people，especially with school students. Take Tom and Mike for example. Every day after school，they go to the computer bar to play games till late at night， and they often have a competition to see who wins more scores.
Once，Tom didn’t go home until eleven o’clock at night. When he got home，he told his mother that he had been going over his lessons. Poor mom！She believed him and cooked two eggs for him. "Take more care of yourself as you work too hard，my dear son." But Tom’s face turned red at his mother’s praise. Later he made up his mind to work really hard.