2014年6月的英语就快来了,其实四级阅读相对来说还是比较简单的。下面小编为大家整理了2014年英语四级阅读单项选择题讲解,供各位考生参考。
Passage 2
Psychologist George Spilich and colleagues at Washington College in Chestertown,Marylanddecided to find out whetheras many smokers say smoking helps them to -think and concentrate. Spilich put young non-smokers,active smokers and smokers deprived of cigarettes through a series tests.
In the first test,each subject sat before a computer screen and pressed a key as soon as he or she recognized a target letter among a grouping of 96. In this simple test,smokers,deprived smokers and non-smokers performed equally well.
The next test was more complex,requiring all to scan sequences of 20 identical letters and respond the instant one of the letters transformed into a different one. Non-smokers were faster, but under the stimulation of nicotine ,active smokers were faster than deprived smokers.
In the third test of short-term memorynon-smokers made the fewest errors,but deprived smokers committed fewer errors than active smokers.
The fourth test required people to read a passage then answer questions about it. Non-smokers remembered 19 percent more of the most important information than active smokers,and deprived smokers bested those who had smoked a cigarette just before testing. Active smokers tended not only to have poorer memories,but also had trouble separating important information from insignificant details.
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