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 passage imply about screen time?

选项 A、Screen time is the focus of the family.
B、Screen time solves emotional problems.
C、How children use the devices is crucial.
D、Screen time will predict social problems.

答案C

解析 推理判断题。由定位句可知,孩子们如何使用这些设备是与屏幕成瘾相关的情感或社会问题的最强预测因素,而不是在其上面花费时间的多少,可知孩子们如何使用这些设备才是问题的关键,故答案为C)。A)“屏幕时间是家庭的焦点”,第五段第二句指出屏幕应该成为家庭内部互动的共同焦点,而不是在屏幕上花费的时间是家庭的焦点,故排除;B)“屏幕时间能解决情感问题”和D)“屏幕时间将会预测社会问题”,由定位句可知,孩子们如何使用这些设备是与屏幕成瘾相关的情感或社会问题的最强预测因素,既非解决情感问题,也非预测社会问题,故排除这两项。
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