The swift development of internet brought great
convenience for people’s life. It also made people’s life diverse,
and provided platform for people’s study, life and interaction.
It was especially the case for adolescents who liked fresh
things very much. Internet brought new sensation that was very
different from the life in reality. Surfing online was becoming a
kind of favorite conduct for adolescents[1]. At the end of June,
2009, adolescents below twenty-five years old took up a half of
internet users, and about one hundred and twenty million. It
was notable that the number of internet users below eighteen
years old increased very quickly. Adolescents who were in the
course of growth were the sensitive crowd for the fresh things.
They could not only accept and utilize the positive function of
internet, but also were ready for the negative influence from
internet.