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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 (機械裝置) 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 (神經科學家)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 (多任務處理) abilities are limited.
第5部分:補全短文
46.A?瞻滋幍那耙痪渲v美國法律不允許你在走路、開車、打電話或是發(fā)郵件的時候聽音樂。而空白處后一句講這個法律是上月生效的。因此A選項(如果在紐約街頭這樣做的話,你會被罰款100美元)符合語境,所以A選項正確。
47.F?瞻滋幍那耙痪鋯栐撠焸湔l呢,空白處后一句講“我們現(xiàn)在的印象是我們的大腦能做的事情比平時多”。因此F選項(科學家說多任務處理的能力是很有限的)正確。
48.E?瞻滋幍那耙痪渲v年輕人通常被認為能夠進行多任務處理?瞻滋幍暮笠痪渲v述了一個年齡在18——21歲的組和一個年齡在35——39歲的組分別給予90秒鐘的時間,運用一種簡單的解碼將圖片轉化成數(shù)字。因此E(但是,哈佛大學的研究認為這個觀點是有問題的)為正確選項。
49.D?瞻滋幍那耙痪渲v一個年齡在18——21歲的組和一個年齡在35——39歲的組分別給予90秒鐘的時間運用一種簡單的解碼將圖片轉化成數(shù)字?瞻滋幍暮笠痪渲v,當兩個組被一個電話或短信打斷時,兩組的反應速度和準確率還是相當?shù)。因此D選項(年輕那組在不被打斷的情況下能做到多10%的業(yè)績)符合語境,所以D選項正確。
50.C?瞻滋幥耙痪渲饕vJonathan Spire估計因為被打斷而對美國經濟造成的損失為每年將近6500億美元。空白處后一句講這個調查認為工人工作時間的28%用在被打斷和恢復工作上。所以選項C(這個估算是根據(jù)辦公室人員的調查得來的)為正確選項。