For their study，he and his colleagues randomly divide 565 preschoolers into two groups.In one group，parents recorded notes about kids’ normal TV viewing，without receiving any guidelines to reduce or change those habits.In the other group，researchers made visits and calls and sent monthly newsletters encouraging parents to replace violent TV with educational programming.After six and 12 months，parents reported their kid’s angry，aggressive or anxious behaviors on a questionnaire.At both time points，children in the TV intervention (干预) program had slightly fewer problems than those in the comparison group.Boys in low­income families seemed to benefit most from the change in programming，the researchers found.

　　“The point is，this is something that is as effective as other things we do to try to guide behavior in children，and it’s fairly simple，” Christakis said.

　　Another study published in Pediatrics found the more TV kids and teens watched，the more likely they were to have a crime or other problems in society.Children may imitate violence they see—or more time in front of the TV could simply mean less communication with peers and families，and worse performance in school.

　　The American Academy of Pediatrics recommends kids watch no more than one to two hours of high­quality programming each day.Researchers agreed parents should be mindful of what exactly their young kids are watching on TV as well.“It’s

【2015届高考安徽英语一轮复习章节检测训练15】相关文章：

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (39)

★ 四川省广安市2014高考英语一轮基础训练题（11）及答案

★ 2017届高考英语二轮复习大题冲关秘籍完形填空之夹叙夹议文：应试策略（含解析）

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 11 B卷 Word版含解析

★ 2017届高考英语二轮复习课时训练：13（含解析）

★ 天津市武清区杨村第四中学2016届高考英语一轮复习语法专题十三《名词性从句》课件外研版

★ 安徽省淮南市2014高考英语一轮单项选择及文章训练（23）及答案

★ 常熟市2014高考英阅读理解语一轮（暑假）训练题（6）及答案

★ 2014高考英语（新人教版）一轮基础训练（11）A、B卷（附答案或解析）

★ 2017届高考英语二轮复习课时训练：23（含解析）