在充分的利用网络充实生活的同时，我们应该警惕网络中的一些色情，迷信 的东西，防止它们损害我们的身心健康。
How often do you surf the Internet?
➢ Everyday?
Once a week? Once every two weeks?
➢ Once a month?
第一台电脑的诞生于1946年美国宾夕法尼亚州立大学。1990年中国引入第一台电 脑，并开始进行研究，2000年左右电信的出现让中国人民步入了互联网时代
Network is a magical world. Where there is a treasure, a trap; where there is hope, also have the magic cloud. It can make your spiritual sublimation, also can make your spirit.
网络是一个神奇的世界。那里有财富，也有陷阱；那里有希望， 也有幻云。它可以使你的精神升华，也可以使你的精神沉沦。
In the full use of network to enrich the life at the same time, we should be careful in the network some porn, superstition, preventing them from harm to our physical and mental health.
Positive Effects
With the network in the work, people can communicate with others via E-mail, and they can even have a video meeting instead of getting together with workmates, so work becomes more efficient.
