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  3. A Bad Idea Think you can walk, drive, take phone calls, e-mail and listen to music at the same time? Well, New York’s new la

A Bad Idea Think you can walk, drive, take phone calls, e-mail and listen to music at the same time? Well, New York’s new la

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问题                                     A Bad Idea
    Think you can walk, drive, take phone calls, e-mail and listen to music at the same time? Well, New York’s new law says you can’t. 【46】______ The law went into force last month, following research and a shocking number of acddents that involved people using electronic gadgets(小巧机械) when crossing the street.
    Who’s to blame? 【47】______ "We are under the impression that our brain can do more than it often can", says Réne Marois, a neuroscientist(神经科学家) in Tennessee. "But a core limitation is the inability to concentrate on two things at once".
    The young people are often considered the great multitaskers. 【48】______ A group of 18- to 21-year-olds and a group of 35-to 39-year-olds were given 90 seconds to translate images into numbers, using a simple code. 【49】______ But when both groups were interrupted by a phone call or an instant message, the older group matched the younger group in speed and accuracy.
    It is difficult to measure the productivity lost by multitaskers. But it is probably a lot. Jonathan Spira, chief analyst at Basex, a business-research firm, estimates the cost of interruptions to the American economy at nearly $650 billion a year. 【50】______ The surveys conclude that 28 percent of the workers’ time was spent on interruptions and recovery time before they returned to their main tasks.
[A] Talking on a cellphone while driving brings you joy anyway.
[B] The estimate is based on surveys with office workers.
[C] The younger group did 10 percent better when not interrupted.
[D] However, an Oxford University research suggests this perception is open to question.
[E] Scientists say that our multitasking(多任务处理) abilities are limited.
[F] And you’ll be fined $100 if you do so on a New York City street.

选项
答案D
解析 一般会认为年轻人总是比年纪大的人更擅长同时处理多种任务。D则对这一看法提出质疑。However这个词把这句话的作用讲得很明白。
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