根据短文内容和以下提示:1)首字母提示，2)语境提示，3)汉语提示，在每个空格内填入一个适当的英语单词。所填单词要求意义正确，拼写准确。
The Internet has become p      of teenage life.
A new report on 3,375 students aged from 10 to 18 in seven Chinese cities    （报导）that 38 percent of them believe they use the Internet often.
Most of them get useful information and    (提高) their study by using the Internet, while some are not using it in a good way.
In order to help young people use the Internet in a good way, a textbook    good Internet behavior has started to be used in some middle schools in Shanghai this term. The book uses many real    （例子）to teach students all about good ways of using the Internet, and it gives useful a     such as it’s good to read news or find helpful information about study.
Some students also make online friends. But if you are meeting an online friend, make sure your parents know. Teachers and parents all think the book is of g     help. A teacher said the book would be a guide for teenagers     using the Internet. She believes it will keep students     from bad websites（网址）. “Many students are using the Internet without good guidance（指导）from their parents.” She said, “The book will teach students      to be a good person in the online world.”