题目内容
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Twenty years ago, kids in school had never even heard of the Internet. Now, I'll bet you can't find a 1 person in your school who hasn't 2 heard of it. In fact, many of us use it on a regular basis and can even use it at 3 . The "net" in Internet really stands for network. A network is two or more computers 4 together so that information can be 5 or sent from one computer to 6 . The Internet is a vast 7 for all types of information. You may enjoy using it to do 8 for a school project, downloading your favorite songs or 9 with friends and family. Information can be found 10 web pages that companies, organizations, and individuals (个人) create. It's like a giant bulletin board that the whole world uses! But since anyone can put 11 on the Internet, you also have to be careful and use your best 12 and a little common sense.
Just 13 you read something on a piece of paper someone puts on a bulletin board doesn't mean that it's good information, or even correct, for that matter. You have to be sure that whoever posted the information knows what they're talking about, 14 if you're doing research! But what if you're just e-mailing people? You still have to be very 15 if you've never met the person that you're communicating with online. You could be doing something 16 ! You should never give out any 17 information to someone you don't know, not even your name! And just like you can't 18 the information on every website out there. You can't 19 on what strangers you "meet" on the Internet tell you either. In the same way that you could 20 things about yourself to tell someone, as someone else could do the same to you!
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