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【正文】 e nonprofit Common Sense Media found that 41% of children 8 and younger have access to a smartphone and 13% have spent time on social networking sites and virtual worlds.Schools teach students to be wary of whom they meet online. Harris says educators are concerned about older students as well as younger ones. Even though they’re 15, 16 years old they’re still pretty vulnerable, he says.be wary of 提防。擔(dān)心be concerned about 擔(dān)心。掛念vulnerable adj. 易受攻擊的。易受傷害的Statistics show that online predation is rare — a Harvard study sponsored by attorneys general in all 50 states found that being online increases the availability of harmful, problematic and illegal content but does not always increase minors’ exposure. It said kids most at risk are those who often engage in risky behaviors and have difficulties in other parts of their lives.sponsor v. 贊助。發(fā)起 n. 贊助者。主辦者。保證人attorney n. 律師。代理人The whole ’stranger danger’ thing was very much driven by parental alarm, says BarbaraJane Paris, principal of Canyon Vista Middle School in Austin, who testified before Congress in 2010 on cyberbullying.The challenge, she and others say, is teaching kids that what they say and do online can have immediate, profound consequences — and that an offhand cruelty or indiscretion can last forever.profound adj. 深厚的。意義深遠(yuǎn)的offhand adj. 隨便的。即時(shí)的indiscretion n. 輕率。行為失檢You can’t indefinitely call somebody a (slur for gays) and then just say, when called to the table, ’I was only kidding,’ Paris says.Question time:1. How to be better digital citizens according to Principal Chris Lehmann of Philadelphia’s Science Leadership Academy?2. How many teenagers go onlie at school?1. To be careful what we say on the Internet.2. 75%.
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