精选优质文档-倾情为你奉上 Prepared on 22 November 2020英语三分钟即兴演讲题目和参考思路专心-专注-专业1. Should parents set limits in internet access for their teenage children WhyInternet is dangerous if a child has unlimited freedom to use it. Because teenagers are too weak to resist the great tempt. Various online games will cost their almost all-day time. And many kinds of online movies may teach them unhealthy content such as violence. Also, long-time exposure