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  3. American universities are rushing towards a wireless future. They are installing networks that let students and teachers surf th

American universities are rushing towards a wireless future. They are installing networks that let students and teachers surf th

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问题     American universities are rushing towards a wireless future. They are installing networks that let students and teachers surf the Internet from laptop computers(笔记本电脑). But professors say the technology poses a growing【C1】______: Retaining their students’ attention.
    In a classroom at American University in Washington D.C., the benefits and【C2】______of the new wireless work were on display. From the back row of a lecture hall, more than a dozen laptop screens were【C3】______. As Professor Jay Mallek lectured on the finer points of an office budget, many students went online to surf the Internet. Students write quick emails and send instant messages. A young man shows an amusing email to the women next to him, and then switches over to read the online edition of The Wall Street Journal. Distraction is nothing【C4】______. As long as there have been schools, students have whispered, passed notes and even gazed out the window and daydreamed. But the【C5】______of the laptop has introduced new opportunities for distraction, and wireless introduces an even【C6】______range of distraction.
    This is【C7】______annoying for law professors, many of whom still live in the world of paper. "This is something that hurts the students themselves," said Ian Ayres, professor at Yale Law School, who【C8】______the Internet’s entry into the classroom. However, Professor Mallek sees it【C9】______. He said the benefits of the technology outweigh(胜过)the problems. He suggested that it might even be making him a better teacher. He takes the【C10】______of losing his students to email and online newspapers as a challenge to keep lectures lively and interesting.
A)visible I)new
B)threat J)demonstrates
C)possible K)larger
D)opposes L)differently
E)obstacle M)challenge
F)especially N)arrival
G)broader O)advantages
H)drawbacks
【C9】
选项
答案L
解析 根据空前的动词sees可判断，此处应填入一个副词来修饰动词，表示某人看待某物的方式。前文提到，耶鲁大学的Ian Ayres教授反对网络进入教室，而此句中的however及后一句中Mallek教授所表达的观点都表明，Mallek教授与Ian Ayres教授对此事所持的观点应该是不同的。故答案为L)differently(不同地，有差别地)。
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