书面表达：
假如你是一名高三学生，经常为上网的事跟妈妈闹意见，今天在你爸爸的帮助下，你和妈妈达成一致。请根据以下表格的内容，以“An Agreement”为题写一篇120词左右的英语短文。
母亲：
1.高三学生学习任务重，上网浪费时间
儿子自制力差；2.上网会影响学习；3.有些内容是不健康的；4.长期上网会影响视力 儿子：1.学习一天很疲劳，上网可以放松一下2.上网可以增长知识，了解国际、国内大事；3.和同学探讨学习问题；4.紧跟时代。
协议：平常不准我上网，但在周末允许我上网听音乐，看新闻、体育或科普类介绍等
注意：1.短文的开头已给出，不计入总词数。
2.不要漏掉表格中的内容，但不能逐字翻译。
An Agreement
I am a Senior Three student. I often quarrel with my mother over whether I can surf the Internet after school.……

I am a senior three student. I often quarrel with my mother over whether I can surf the Internet after school. My mother holds the view that students in senior three, shouldering heavy loads, are too busy to spare any time to go surfing. It seems to her that once I am allowed to do that, I'll not be able to control myself and forget all about my study. She also thinks that there is something bad in the Websites, which may be harmful to me and at the same time it is bad for my eyes to surf the Internet too often. But I really can' t accept her ideas, for every coin has two sides. I think it a relaxation to go surfing after a day's hard work. Not only can it set my mind at rest, but also it can broaden my horizons. On the other hand, I can discuss some study problems with my classmates through the internet. Furthermore, I can keep in steps with the times. Now we've at last reached an agreement with the help of my father that I can only surf the internet at weekends, and the programs should be limited to music, news, programs of sports or science.
不满意吗?