请根据以下几点，写一篇“远离网吧”的作文。

　　1.新闻媒体披露,徐州某中学1000多名学生签名,庄严承诺“远离网吧” 2.分析“远离网吧”运动的原因 3.作出对比的评论

　　away from net-bar campaign

　　it has been reported that a middle school in xuzhou city has recently launched a campaign named “away from net-bar”. more than a thousand students have signed for their solemn promise that they will not spend a single minute in the net-bars. with the nearing of the summer vacation, this campaign is especially meaningful for the healthy development of the minors.

　　the internet has brought people great convenience in getting information, entertainment and contact with others, and it has also benefited some businessmen, especially the owner of net-bars. while it is true that most net-bars are running legally, it is also true that some are offering unhealthy programs that involve violence and sex content. since most middle school students are prone to be influenced and they can hardly tell which bars are doing well and which ones are not, it is only advisable that they stay away from all. besides, staying away from net-bars also does good to students＇ physical health. by passively sitting too long in front of the computer screen, both their eyesight and physique suffer.

　　obviously, the away from net-bars campaign is an activity that is worth advocating and it merits other schools＇ reference