11．We've always limited"screen time"at home：no screen time before two years of age，and only occasional educational DVDs after that．Researchers have found a connection between screen time and a host of behavioral and physical problems．Some children have become so addicted to iPads and other tablet devices （平板电脑装置） that their parents have even sought out treatment．
So，should I be perturbed about the increasing dependence on technology in our schools？In addition to a weekly computer class，my first-grade daughter spends much of her instructional school day in front of the"smart board"．And now，school districts across the country are talking about replacing textbooks with tablets．
There are several factors that need careful consideration．Important distinctions must be drawn between television screen time （yes，even educational programming），which is a mostly passive medium，and tablet screen time，which is more interactive （互动的）．Another important factor is the age of the child．All people need human interaction，but babies and small children need it most of all．Studies have suggested that tablets may help improve reading and writing abilities in school-aged children，however，plus they help children with autism （a mental disorder） communicate．
Tablets in the classroom could replace expensive and heavy textbooks，allow children to make and read notes more easily，providing interactive functions and help track progress．When I was a child，I could hardly carry my backpack up my driveway-we could avoid a lot of back problems by using one light and thin tablet instead of huge textbooks．
Beyond common concerns （what happens if the tablet is lost，stolen or broken？），I do worry about that we are rushing toward a brave new world of technology without considering what we might lose．If our children spend too much time on tablets，they run the risk of becoming addicted and missing out on a lot of what the world has to offer，especially in a time when schools are cutting art，music and gym．Human brains need real-world connections，touchable sensations and even some downtime．Tablets can be a part of child's education，but we have to guard against these devices taking over．
29．The underlined word"perturbed"in Paragraph 2is closest in meaning to"D"．
A．curious B．happy
C．excited D．worried
30．According to Paragraph 3，allowing very young children to use tabletsB．
A．is worth a try
B．may be harmful
C．helps improve their learning skills
D．offers them more human interactions
31．The author mentions her childhood experience toC．
A．express her support for traditional education
B．stress the importance of taking notes
C．show the disadvantages of textbooks
D．describe her happy childhood
32．Which may be the author's opinion on tablets？A
A．They're helpful only in a limited way．
B．They are too expensive for most students．
C．They excite students'interest in learning．
D．They improve the effectiveness of education．
分析 本文讲述了科技的发展给学生们带来的便利--使用轻巧便捷的电子产品，但同时存在诸多的问题，孩子在使用这些东西时应该把握好时间，切忌使用过度．
解答 29．D 词义猜测题．根据文章第一段最后一句Some children have become so addicted to iPads and other tablet devices （平板电脑装置） that their parents have even sought out treatment．说明现在许多孩子沉迷于电脑，而第二段开头就应该表示出作者对这一现象的担心，这对孩子是不好的，联系选项，故选D．
30．B 细节理解题．根据文章第三段的内容Important distinctions must be drawn between television screen time （yes，even educational programming），which is a mostly passive medium，and tablet screen time，which is more interactive （互动的）由该句可知，television and tablet 带来消极的不好的影响的媒介，应该少让孩子接触，故B为正确选项．
31．C 推理判断题．根据文章内容When I was a child，I could hardly carry my backpack up my driveway-we could avoid a lot of back problems by using one light and thin tablet instead of huge textbooks．可知，作者童年时期对于书包不堪重负，而现在的孩子可以用轻便的电子产品，非常好．由此说明沉重的教科书给孩子们带来不便，故C为正确选项．
32．A 细节理解题． 文章说明的平板电脑的好处，轻巧，携带方便．但同时存在很大的问题，学生们会过多的依赖它，Tablets can be a part of child's education，but we have to guard against these devices taking over．由此可知，作者觉得它只能从某个角度带来好处，故选A．
点评 本文是社会文化类阅读理解．做这类题材阅读理解时要求考生对文章通读一遍，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据．
