题目内容
The Internet is a computer network that uses the telephone system to connect together millions of
computers around the world.
Maybe that isn't very exciting but once you're connected to the Internet, there are lots and lots of
different things you can do. You can send electronic messages or "e-mails" to your friends (as long as
they're on the Internet, too), or you can sort through all kinds of information on something called the
World Wide Web.
You don't need to know how the Internet works in order to use it, but if you understand the basics,
it may help you work out any technical problems you have - and of course you can help your friends
with your knowledge!
You may think that your telephone is just for talking. But as long as you have the equipment (设备),
you can use a telephone line to send computer data (数据) as well as sounds. If you connect your
computer with the telephone system, it can receive information from and to other computers (as long as
they are connected with the telephone system, too).
Because there is not an organization which operates the Internet, no one exactly knows how many
people are connected to it. It's thought that there could be 60 million people on the Net, connected up to
over 15 million computers! et
B. know how to make a telephone call
C. have a telephone
D. learn how to type on a computer
B. they also have their own computers
C. you have already known their telephone numbers
D. they are also connected to the Internet
B. use the Internet besides working out technical problems
C. sort through all kinds of information on the World Wide Web
D. help your friends connect their PCs with the Intern
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