Children and teenagers who spend lots of time in front of screens

题文

Children and teenagers who spend lots of time in front of screens---especially TVs---are   easier to get more weight as they grow, according to a new study.The findings agree with the rearch suggesting all that inactive sitting and always watching   advertiments may lead to poor eating habits.Rearchers ud results from a long-term study of children who took part in the surveys every two years. Children were between ages 9 and 16 when the study started. Out of 4,300 girls in the   study, 17 percent were overweight or obe（肥胖的）. Twenty-four percent of the 3,500 boys   were also above a healthy weight.The surveys included questions about their height and weight as well as how much time they spent watching TV and DVDs and playing computer and video games.From one survey to the next, each one-hour increa in children’s daily TV watching was in connection with an increa of about 0.1 points on a body mass index (BMI)（体质指数）, which measures weight in connection with height. There’s an increa of about half a pound in weight per extra hour of TV.“The weight of the evidence is so strong that television watching is connected with unhealthy changes in weight among youth,” says Jennifer Falbe, who led the study while at the Harvard School of Public Health in Boston.“It's important for parents to know that all the obesity-causing（引起肥胖的）screens really should be limited in their children's lives.” Falbe says. “When children watch TV, there are many food advertiments on TV that might lead them to eat a cookie or drink a soft drink.” What's more, she says, “they can get into a hibernating(冬眠) state on the sofa, even if children are sitting down while playing a computer game.”小题1:Which of the following statements can be the best title for the text?A．A new study on screens.B．TVs do harm to children.C．The less TV time, the fatter.D．Too much screen time leads to obesity.小题2: How many children took part in the study?A．4,300B．3,500C．7,800D．9,800小题3:According to the study, one extra hour screen time will cau children about ______ poundfatter.A．0.1B．0.5C．0.3D．0.7小题4:According to Falbe , what should parents do to stop children getting fat?A．Limiting the time of children watching TV.B．Buying children food advertid on TV.C．Not allowing children to watch TV.D．Encouraging children to play computer games. 题型：未知难度：其他题型

答案

小题1:D小题2:C小题3:B小题4:A

解析

根据一项研究，青少年长时间对着屏幕，特别是电视，容易超重，文章具体介绍这项调查的证据和解决这个问题的方法。小题1:主旨题：根据全文的内容和第一段的句子：Children and teenagers who spend lots of time in front of screens---especially TVs---are   easier to get more weight as they grow, according to a new study.可知这篇文章讲的是在屏幕面前待的时间太长会导致肥胖。所以选D。小题2:细节题：根据第三段的句子：Out of 4,300 girls in the   study, 17 percent were overweight or obe（肥胖的）. Twenty-four percent of the 3,500 boys   were also above a healthy weight.可知一共是7800名儿童参加了研究，所以选C。小题3:细节题：根据第五段的句子：There’s an increa of about half a pound in weight per extra hour of TV.可知在电视前面多呆一个小时会增加1.5磅的重量。所以选B。小题4:细节题：根据最后一段的句子：“It's important for parents to know that all the obesity-causing（引起肥胖的）screens really should be limited in their children's lives.”可知解决这个问题的方法是限制孩子看电视的时间。所以选A。

考点

据考高分专家说，试题“Children and teenage.....”主要考查你对 [健康环保类阅读 ]考点的理解。 健康环保类阅读

健康环保累阅读概念：

健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。

健康环保类文章阅读技巧：

   健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考，理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文，从结构上看大致可分为三个部分：   第一部分一般是文章的首段，主要用来提出文章的主题，即文章想要阐述、说明的主要内容；   第二部分是文章的主体，可由若干个段落组成，对文章的主题进行展开说明；   第三部分是结尾段，对文章的主题进行归纳总结。这类文章多用一般现在时，而且一般多使用客观性词语表述。有时为了强调客观性，也常使用被动语态。   从近几年的考试题来看，科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节，很多同学对此类文章感到费解。但一般的科普类文章都是就事论事，需要逻辑推理和想象的时候较少，因此此类阅读题也没有同学们想象中的那么难，只要多加训练，就能较好地答题。【阅读策略】 1、概要(Summarizing)：  阅完材料后，将所阅材料浓缩，摘要，做出所阅材料的书面或口头梗概。 2、组织(Organization)：  阅读后根据阅读内容，识别观点、人物、事件之间的关系以及文章的结构关系。如：时间关系、比较或对比关系、相关关系及因果关系等。