① Fifteen-year-old Cathy posted a birthday party invitation and her address online. When her parents got back home that evening, they couldn't believe their eyes! There were 500 people at the party, and some of them were breaking windows and plants, making a total mess of the house.
②Most teens think that things like this could never happen to them. A study shows that last year alone, more than three million young people worldwide got into trouble because of their online activities. ____?
③RULE 1: Share with care
Not everyone will like what you write online. Think before you post something. You can never completely control who sees your texts, pictures, or videos. Before posting, you should ask yourself two questions, "How will I feel if my family or teachers see this?" and "How might this post be bad for me in three, five or ten years from now?"
④RULE 2: Be polite when you write
Imagine someone is unfriendly in real life. You don't like it, right? Well, the same is true of online communication.
No one likes it when you "shout" in your messages. DON'T USE ALL CAPITALS! ! ! If you feel angry while writing a message, wait a bit. Read it again later and then send it.
⑤RULE 3: Protect and respect
Don't share your personal information with anyone. Don't post your home or email address online. Be careful about "cyberbullying"—don't forward rumours (谣言) or say anything bad about other people. If you get messages like that or see them online, talk to an adult you know.