But one problem the survey found is that many_students_lack_digital_literacy．They trust too much of the information they find on the Internet.Judy says these students haven’t developed the skills to determine the quality of online information.“It’s something that really has to be taught and paid attention to，because in a world in which things happen quickly，you do need to step back，reflect and analyze the information you have.”

　　Another problem is blamed on something that might not seem like a problem at all：being able to quickly find information online.Teachers say the result is a reduction in the desire and ability of their students to work hard to find answers.They say students are overly dependent on search engines and do not make enough use of printed books or research libraries.

　　Many teachers are also concerned that the Internet makes it easy for students to copy work done by others instead of using their own abilities.

　　【解题导语】　本文主要讲述了数字化工具的益处和弊端。________．解析：选D。主旨大意题。文章第一段的第一句“Teachers say the digital age has had a good influence—and a not­so­good influence—on this generation of American teenagers.”为主题句介绍了该调查结果即老师们认为数字时代对这一代的美国青少年既有好的影响也有不好的影响。

　　(①＝Para.1＝Para.2＝Para.3＝Para.4＝Para.5)解析：选A。篇章结构题。本文为总分式第一段进行了综述介绍了数字化工具对学生既有好的影响也有不好的影响；第二段介绍了好的影响第三、四、五段介绍了不好的影响。因此选择A。________． digital tools

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