After spending 40 hours playing the online game King of Glory，a middle school student had a stroke（中风） and nearly died. This happened in Guangdong province in April last year. It shows how bad things can get if one becomes addicted to（沉迷）the Internet.
To stop more teenagers from becoming addicted to the Internet， the Ministry of Education（MOE教育部） sent a letter to all parents in China on April 20， 2018. It calls on them to pay more attention to their children's online activities.
The MOE also sent an urgent（紧急）notice to primary and middle schools， asking them to monitor（监督） students' Internet use. From now on， schools will pay more attention to their students' Internet use and their use of mobile phones.
Schools have been told to teach students how to avoid violent（暴力的）online event. If students show signs of being addicted to the Internet， they can get help from their teachers to give up their addiction.
Among China's 772 million Internet users， about 151 million of them are between the ages of 10 and 19，according to the China Internet Network Information Center.
It's important to pay attention to how much time you spend online. To make better use of the Internet，experts advise that students should limit（限制）their screen time to less than 1. 5 hours a day. To make better use of their free time， they can develop good hobbies， like reading or playing sports.
【小题1】When did the MOE send a letter to all parents in China?【小题2】Where did the MOE send an urgent notice?
【小题3】Are China's 772 million Internet users between the ages of 10 and 19?
【小题4】How long do experts advise students to limit their screen time?
【小题5】What does the passage mainly talk about?
