英语作文；假如你叫李华,英国笔友发邮件说他喜欢聊天,每天花一小时上网,而你认为中学生不应该上网… 请...

Dear Jerry,
Thank you for your letter. In the letter, you told me that you like chatting on line and you would spend one hour in surf the internet. As far as I'm concerned,it's harmful for middle school students to chat on line.
First of all, It's a waste of time chatting on line.We'd better spend enough time on study. Second, there are some violent games and bad website on line, which would hurt us. last but not the least, chatting on line is unture to us.some of students would treat the world on line as the real world, which would do harm to us.
Wish you all the best.
yours,
Lihua