disadvantages:
1.Accessing the internet occupies too much of peoples' time.
2.Being addicted.
3.There is too much blood and violence in online films.These films have a bad influence on people.Some people imitate the behavior and commit crimes.
4.There are a lot of virus on the internet.Sometimes your data will be lost or modified.What's worse is that your computer may be damaged by some virous viruses.
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还有很多条,没有电子版资料,都是手写的笔记整理,实在是没有功夫一条条地打字了.毕竟,那么大的问题才给5分.这几条楼主先凑合用吧.