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  3. There’s something on the Internet that can bring out meanness in teenagers. That is one finding of a study to be released on

There’s something on the Internet that can bring out meanness in teenagers. That is one finding of a study to be released on

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问题     There’s something on the Internet that can bring out meanness in teenagers.
    That is one finding of a study to be released on Wednesday, reporting that nine in ten teenagers say they have witnessed cruelty by their peers on social networks.
    For the vast majority of teens, Facebook is the social network of choice. Incidents of mean and cruel behavior are pervasive and cut across all ages and backgrounds on social networks, according to the study by the Pew Research Center’s Internet & American Life Project, which surveyed 800 children between the ages of 12 and 17.
    The data on Internet experiences for young people is not all bad. Eight in ten teenagers said they have developed positive feelings about themselves and forged better friendships on social networking sites, according to Pew.
    Still, the prevalence of " mean" behavior—a term the center doesn’t define—raised concerns among child-safety advocates and parents who say adolescents may be subjecting themselves to unhealthy online environments. " For teens, these are exciting and rewarding spaces. But the majority have seen a darker side, " said Amanda Lenhart, a co-author of Pew’s report, "Teens, Kindness and Cruelty on Social Network Sites. "
    Of course, bad behavior among children has been around as long as youngsters have stolen milk money and scribbled insults on bathroom walls, experts say. And online bullying is not as common as what takes place on the schoolyard or in the hallway, Pew said. But there is something about the ease of communication on the Internet that invites an abundance of commentary about peers, experts say. That escalates when people gang up on an individual. Of the teens who said they witnessed cruelty online, 21 percent said they joined in the harassment. Three out of ten girls ages 12 to 13 said they have experienced mostly unkind treatment on social networks—the most negative response of any group of youth, according to the report.
    Lenhart and other experts on social media said teenagers see themselves differently online than in the real world. Some assume a sort of "alter ego" on the Web, engaging in conversation with more bravado(冒险)and taking more risks than they do when face to face with a peer, she said. Peers can be particularly cruel on sites such as FormSpring that allow users to post comments anonymously, or on the comment boards of sites such as YouTube, according to experts.
    Facebook—with 800 million global users—requires its members to use their real identities, which it thinks is one way to prevent anonymous bullying. It also allows users to block photos of and comments about themselves that they don’t like.
    But that hasn’t stopped all bullying. And some experts worry that younger adolescents are particularly vulnerable. Rachel Simmons, an author and speaker on children and social media, said bullying occurs most in middle school, yet parents are often helping their children get online when they are younger than 13, the minimum age required for Facebook.
    "The younger the kid, the meaner the peer group becomes, so this is an alert to parents that not every kid is ready for the independence of having their own social networking page, " Simmons said.
In the passage, the author intends to_______.
选项 A、talk about the positive effects of social network on teenagers
B、discuss social networks and people’s daily life
C、probe into the meanness in teenagers on social networking sites
D、remind teenagers of the damaging results of online bullying
答案C
解析 ]主旨题。本文开篇提到皮尤中心的调查研究表明，社交网络上的残忍和刻薄行为在青少年中普遍存在；第五至七段分析了重视这一网络现象的原因；接着第八、九段以社交网站Facebook为具体事例证明阻止网络残忍行为的必要性；最后做出总结，说明保护孩子免受网络残忍行为的必要性。综上所述，[C]“探究社交网络中青少年的残忍行为”最能概括本文主旨，故为正确答案。[A]“讨论社交网络对青少年的积极影响”仅在第四段中提及，不是作者的主要写作意图，故排除；[B]“讨论社交网络和人们的日常生活”涵盖范围过广，故排除；作者在最后一段引用研究儿童和社交媒体的发言人西蒙斯的话，说明父母保护孩子免受网络残忍行为的必要性，而[D]“提醒青少年网络欺凌的破坏性后果”是对本段内容的总结，不能概括全文主旨，故排除。
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