TheInternethasbecomepartofteenagelife.Anewreporton3,375...

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問題詳情：

The Internet has become part of teenage life. A new report on 3,375 students aged from 10 to 18 in seven Chinese cities found that 38 percent of them believe they use the Internet often.

While most of them get useful information and use the Internet to help in their studies，some are not using it in a good way. In order to help young people use the Internet in a good way，a textbook on good Internet behavior has started to be used in some Shanghai middle schools this term. The book uses real examples to teach students all about good ways of using the Internet. The book gives useful advice such as it being good to read news or find helpful information to study.

Some students also make online friends. But if you are meeting a friend offline，make sure your parents know. Teachers and parents all think the book is of great help. A teacher said the book would be a guide for teens using the Internet. She believes it will keep students away from bad sites.“Many students are using the Internet without guidance from their parents，” she said.“The book will teach students how to be a good person in the online world.”

45．The textbook mainly tells us ________.

A． why we should use the Internet

B． how to study using the Internet

C． how to use the Internet correctly

D． how to get help from others

46．What’s the attitude of teachers and parents towards the textbook?

A． They are against it.

B． They are for it.

C． They don’t care about it.

D． The passage doesn’t mention.

47．According to the passage，teenagers are NOT encouraged to________.

A． read online news