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  3. (中国科学院2013年3月试题) Parents who believe that playing video games is less harmful to their kids’ attention spans than watching TV

(中国科学院2013年3月试题) Parents who believe that playing video games is less harmful to their kids’ attention spans than watching TV

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问题    (中国科学院2013年3月试题)
   Parents who believe that playing video games is less harmful to their kids’ attention spans than watching TV may want to reconsider. Some researchers【C1】______more than 1,100 children in different grades for a year. They asked both the kids and their parents to estimate how many hours per week the kids spent watching TV and playing video games, and they【C2】______the children’s attention spans by【C3】______their school teachers.【C4】______studies have examined the effect of TV or video games on attention problems, but not both. By looking at video-game use【C5】______TV watching, these scientists were able to show for the first time that the two activities have a similar relationship【C6】______attention problems.
   Shawn Green, a psychologist at the University of Minnesota, points out that the study doesn’t distinguish between the type of【C7】______required to excel at a video game and that required to excel in school.
   "A child who is capable of playing a video game for hours【C8】______obviously does not have a【C9】______problem with paying attention," says Green.【C10】______are they able to pay attention to a game but not in school? What expectancies have the games set up that aren’t being delivered in a school【C11】______?" Modern TV shows are so exciting and fast paced that they make reading and schoolwork seem【C12】______by comparison, and the same may be true【C13】______video games, the study notes.
   "We weren’t able to break the games down by educational versus non-educational【C14】______nonviolent versus violent," says Swing,【C15】______that the impact that different types of games may have on attention is a ripe area for future research.
【C8】
选项 A、on end
B、at length
C、now and then
D、in and out
答案A
解析 on end意为“连续地”；at length意为“详尽地”；now and then意为“不时地”；in and out意为“进进出出地”。句子是说孩子连续玩几小时视频游戏，因此选择A。
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