With the development of the computer technology,the internet is becoming more and more popular.You can find computers and the internet nearly everywhere in our life,work and study.Even,the internet is becoming one of the most important parts in our social life.But,some young people,especially some of the students,are too addicted to the net surfing.They spend too much time on the games,chatting,movie seeing and even shopping online.That will not be good,even harmful for their hearts,health and their attitude towards the world,only because the internet is so complicated that it is not easy for the young people to control themselves.