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　　第5部分：补全短文(第46——50题，每题2分，共l0分)

　　下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。

　　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, followingresearch and a shocking number of accidents that involved people using electronic gadgets (机械装置) 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 Rene Marois, a neuroscientist (神经科学家)in Tennessee. "But a core limitation isthe inability to concentrate on two things at once".

　　The young people are often considered the great multi-taskers. 48 A group of 18-to21-year-olds and a group of 35-to 39-year-olds were given 90 seconds to translate images intonumbers, using a simple code. 49 But when both groups were interrupted by a phone call oran instant message, the older group matched the younger group in speed and accuracy.

　　It is difficult to measure the productivity lost by multi-taskers. But it is probably a lot. JonathanSpire, chief analyst at Basex, a business-research firm, estimates the cost of interruptions to theAmerican economy at nearly $650 billion a year. 50 The surveys conclude that 28 percent of theworkers' time was spent on interruptions and recovery time before they returned to their main tasks.

　　A. And you'll be fined $100 if you do so on a New York City street.

　　B. Talking on a cell-phone while driving brings you joy anyway.

　　C. The estimate is based on surveys with office workers.

　　D. The younger group did 10 percent better when not interrupted.

　　E. However, Oxford University research suggests this perception is open to question.

　　F. Scientists say that our multi-tasking (多任务处理) abilities are limited.

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