必修5 Unit 4　Making the news-（达标训练）【导学教程】2024旧教材老高考英语新编大一轮总复习（人教版）

[对应学生用书P411] Ⅰ.阅读理解 A (2022·合肥质量检测)The use of social media has been linked to mental health problems in teenagers. But a new study from England argues that the issue may be more complex than experts think. The new research interviewed 10，000 teenagers，who reported the frequency they used social media. The frequency of more than three times a day was considered “very frequent”．But the researchers，for the first time，went a step further to investigate what kind of websites made the teenagers frequenters. They found that，in both sexes，very frequent visits to social media with negative(负面的)contents were associated with greater mental depression and anxiety. “Our results suggest social media itself doesn't cause harm，but that frequent use may disrupt(使中断) activities that positively influence mental health such as sleeping and exercising，while increasing exposure of young people to harmful contents，”said Russell Viner，the co­author of the UCL Great Ormond Street Institute of Child Health. It's an important discovery. Just last month，research from Canada showed that higher level of the use of social media was linked with increased mental depression in adolescents. With this study，the problem is put in a better context. It's not necessarily social media that are causing these issues. It's more likely the contents that young people are exposed to and their hindrance (妨碍) of healthy sleep and exercise. Bob Patton，a lecturer at the University of Surrey，said this means that remedies focusing only on reducing the use of social media to improve mental health might not help. “Finding ways to improve the online contents and promote better sleep and exercise is needed to reduce physical and psychological harm，”said he. “If healthy lifestyles can be kept，the positive effects of the use of social media，such as encouraging social interactions，can be more supported，”said Ann DeSmet，an assistant professor at the University of Antwerp in Belgium. [解题导语]　本文是一篇说明文。一项研究发现青少年使用社交媒体的频率与心理健康