The Internet is a very dangerous place as shown by a recent case when a teenage girl who was chatting on the Internet suddenly received a message on her cimputer screen. . The message instructed her to take a pornographic photo of herself and e-mail it to an address. Luckily,the girl was smart enough to turn off her computer and tell her parents.
If children and teenagers arc not smart, they can get into trouble on the Internet.
There is software available for free on the Internet that can let someone anywhere in the world get access to your computer without your permission. This means that
technology now makes it possible for people to leam everything about you and your kids.
The Internet is also dangerous hccousc it is impossible to know who is sending c-mail. An adult might pretend lo he a child in order to make friends with a child and then persuade that child to meet in an isolated and dangerous location. In addition, the Internet is filled with aduit material that is not appropriate for children and teenagers. Anyone can put information on the Internet, so there is no way of knowing what our children will see when they are surfing the Net.
【題組】41. The Net is dangerous NOT because it is__________
(D) full of indeccnt material