With the development of compiter, and in order to make our life more colorful,many computer socialists are majoring in video games designment, which makes the video games very popular in recent years.Many teenagers are being attracted by video games. Every day after school some teenagers will bury themselves in video games at home or in video arcades. They concentrate all their attention on video games, with their hands busy operating.
Video games are a kind of wonderful entertainment. They bring great pleasure to teenagers, train them to respond quickly, stimulate their imagination and interest in electronics and computer science.
Just as a coin has two sides, video games also have some disadvantages. School children spend too much time on video games, which would do harm to their eyes and affect their school achievements. Also, playing video games doesnot allow them to use their natural creativity.Some of them even commit crimes in order to get enough money for the games. Only if one has enough self-control can he benefit from computer games
Internet has penetrated into all the aspects of our life and work. We can study and work by it; we can find a job by it; we can communicate by it; we can entertain by it; we can buy and sell by it. We can do almost everything on the Internet, and almost anywhere anytime。

However, at the same time Internet provides services for us, it is inevitably invading our privacy to some degree. The services on most websites require our registering. If we want to enjoy these services, we have to provide much private information, including our names, gender, address, telephone number and sometimes bank account. Due to the poor Internet administration and weak network security, our information might be open, stolen or sold. Even sometimes the information will be misused by the criminals。

Considering the above-mentioned, we must enhance the alertness when using the Internet. First, when we need Internet service, we should always log on those big legal websites. Second, if the service requires important private information, you should think twice before you type in it.。