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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還有很多條,沒有電子版資料,都是手寫的筆記整理,實在是沒有功夫一條條地打字了.畢竟,那么大的問題才給5分.這幾條樓主先湊合用吧.