参考答案和解析
正确答案：
Positive and Negative Effects of Computer With the rapid development of information technology, computers play more and important part in our daily life. Nowadays, it has paid more people attentions than before. Different people have different attitudes.
Most people think that computers have positive effects on us. Firstly, it can enrich our horizon. We can learn more knowledge and get more information about the world. Secondly, it can make our office work efficient. Instead of these paper, pencil, ruler, calculator and so on, now we can deal with the files, cartographies, tables by a computer. Thirdly, it can make our communication easily. It is more convenient to talk to parents or friends when they are far away for each other or cannot meet instantly. Moreover, it is good for our children in the school. Their classes are no longer dull, instead of colorful. Maybe they can learn more useful knowledge by see a movie.
It goes without saying that every coin has two sides, so does computers. Many teenagers become so addicted to computer games or online chat that they ignore their study. Some of them even do not go to school instead of go to the Internet cafes. In order to play a game, they maybe steal money even robbing others. In that case, they will become a criminal. Besides, some smart criminals are use of cyber to crime, they are called “hackers“.
As far as I am concerned, the positive effects of computer are important as the negative effects. Therefore, we should make good use of computers and let them do well to people and make our life wonderful.
解析：
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