（2023•思明区校级二模）Too much time spent on gaming, smartphones and watching television is linked to heightened levels and diagnoses （诊断） of anxiety or depression in children as young as age 2, according to a new study.
段落信息提取：1.抓不常见名词，即本文论述的话题，如首段出现的diagnose诊断；anxiety焦虑；depression抑郁。本文必然涉及心理学，论述日常行为和焦虑及抑郁之间的相关性；2.非必要，不进行具体句子结构分析，但在进行句意判断时，只从句中关键信息出发，进行信息重新组合。本段落关键信息为time→gaming, smartphones and television→anxiety or depression→children at age 2→study。
Even after only one hour of screen time daily, children and teens may begin to have less curiosity, lower self-control, less emotional stability and a greater inability to finish tasks, reports San Diego State University psychologist Jean Twenge and University of Ceorgia psychology professor W. Keith Campbell. They were particularly interested in associations between screen time and diagnoses of anxiety and depression in youth, which has not yet been studied in great detail.
段落信息提取：两句话，一长一短。首句关键信息提取one hour→children-negative effects [less curiosity, lower self-control, less emotional stability, greater inability]→研究者信息researcher【无关紧要】。次句关键信息association [即首段提及的相关性，此处可略读]→not studied in detail [研究局限性]。
Twenge and Campbell found adolescents who spend more than seven hours a day on screens were twice as likely as those spending one hour to have been diagnosed with anxiety or depression. Overall, links between screen time and well-being were larger among adolescents than among young children.
段落信息提取：结论性句式表述found，结论是对前两段的进一步阐述，可跳读。次句overall，为整体性评价，关键信息为相互比较，以比较级形式出现，抓比对主体，即adolescents和children。
"At first, I was surprised that the associations were larger for adolescents," Twenge said. "However, adolescents spend more time on their phones and on social media, and these activities are more strongly linked to low well-being than watching television and videos, which is most of younger children's screen time."
段落信息提取：话语引用【必出题】。关键信息为however，得出的研究结果常常意料之外，又情理之中。本段落语句评价属常规判断，即时间越长，负面效果越大。
The study provides further evidence that the American Academy of Pediatrics' （AAP） established screen time limits-one hour per day for those aged 2 to 5, with a focus on high-quality programs-are valid （有效的）, Twenge said. The study also suggests that similar limits-perhaps to two hours a day-should be applied to school-aged children and adolescents, said Twenge.
段落信息提取：解决措施及方案【措施不同，易出题，即比对和明晰细节信息的差异性】。权威机构American Academy of Pediatrics' （AAP）→screen time limit→1 hour for those aged 2-5→2 hours for school-aged children and adolescents。
In terms of prevention, establishing possible causes and outcomes of low psychological well- being is especially important for child and adolescent populations. "Half of mental health problems develop by adolescence, " Twenge and Campbell wrote in their paper.
段落信息提取：总结性话语，常无特别意义，如影响负面，便倡议莫行坏事，自有好的善果。
（1）What do we know about Twenge and Campbell's study according to paragraph 2？
A．It requires further research.
B．It brings children less comfort.
C．It needs greater ability to finish.
D．It generates more public concern.
（2）What is a reason for the different degrees of impact on children？
A．The effects of the harmful contents.
B．Teens' stronger addiction to screens.
C．The portability of electronic devices.
D．Teens' negative emotions at discipline.
（3）Which of the following do the researchers want AAP to do？
A．Provide high-quality programs.
B．Issue minimum screen time limits.
C．Apply the limits to older children.
D．Present further evidence for prevention.
（4）What does this study focus on？
A．Adolescents' mental problems.
B．The bad habits of the young adults.
C．Low level of mental health in youth.
D．The importance of the young population.
【参考答案】ABCA