[解析]
(1)B,细节理解题,根据句子A group of young people tired of reading'bad news'have taken things into their own hands﹣and created a free positive newspaper可知,这群对阅读感到厌烦的孩子做起这份报纸是为了宣传积极的新闻,故答案为B.
(2)C,推理判断题,根据句子This newspaper champions young people,covering a wide range of topics and including detailed reports of individual young people's work,ambition and achievements.They knew themselves that there were a lot of good things happening可以推测这份报纸的特别之处就是重点在于青少年做的好事,故答案为C.
(3)A,细节理解题,根据句子They contacted youth clubs,schools,and other groups to find out what positive news they had to share.可知,这些青少年联系青年人俱乐部、学校和其他小组找出他们可以分享的那些积极的新闻,可知他们从不同的途径获得新闻,故答案为A.
(4)C,推理判断题,根据句子"is a very low﹣cost service to run,but it can have an absolutely amazing impact for young people in a community like this可知,这份报纸主要是青少年希望对社区造成好的影响,传播正能量,可知这些青少年是有责任心的,故答案为C.