It’s an argument virtually every modern parent has had with their child; the battle to prise them away from the mobile phone the

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问题    It’s an argument virtually every modern parent has had with their child; the battle to prise them away from the mobile phone they’re glued to. For children, a smartphone is a window to games, videos and constant interaction with their friends. But for parents, it can feel like a minefield. But who’s in the right?
   First, it’s worth bearing in mind that screen time can be beneficial. " We tend not to recognise the value of what they do on their mobile devices, but they often use them to extend an interest—for instance, if they’re interested in gymnastics, they’ll watch videos of routines and try to learn from them," Peter Twining, professor of education at the Open University says.
   This difference in understanding of children’s mobile phone usage may help to explain the substantial disparity (差异) in opinion between children and parents about how much screen time is acceptable. According to a survey, the mean amount of screen time that adults thought appropriate for children was 1. 75 hours, with children believing it to be 3.34 hours.
   But at least both parties do recognise that there should be limits. However, recent research suggests that instead of setting specific time limits for usage, such as a maximum of two hours per day, it’s actually the nature of the screen time that matters. For instance, passively flicking through social media posts is less beneficial than actively playing games, which can improve problem-solving skills and persistence. A study found that " how children use the devices, not how much time they spend on them, is the strongest predictor of emotional or social problems connected with screen addiction. "
   Twining agrees, saying: "I’m less concerned about screen time than about the nature of the interactions around the screen. The screen should become a shared focal point for interaction within the family rather than an individual activity. The screen shouldn’t be an alternative to socialising with your child, it should be an enhancement to it. "
What does the recent research find about screen time limits?

选项 A、Screen time limits are necessary.
B、Screen time limits have been accepted by children.
C、Screen time limits vary according to different families.
D、Screen time limits are not the focus of concern.

答案D

解析 推理判断题。由定位句可知,最近的研究表明,实际上,设定具体的使用时间限制并不重要,屏幕时间的性质才是关键,即人们关注的焦点应该是屏幕时间的性质,而非屏幕时间的使用时间限制,故答案为D)。A)“屏幕时间限制很有必要”,与定位句所述相悖,故排除;B)“屏幕时间限制已为孩子们所接受”,文中未提及相关内容,故排除;C)“屏幕时间限制因不同家庭而不同”,第三段第一句指出孩子与父母之间关于屏幕时间接受程度存在巨大差异,并未指出屏幕时间限制因不同家庭而不同,故排除。
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