13. A. So

　　B. Yet

　　C. As

　　D. Such

　　14. A. worse

　　B. more

　　C. rather

　　D. less

　　15. A. realize

　　B. explain

　　C. think

　　D. admit

　　16. A. step forward

　　B. go back C. come out

　　D. look around

　　17. A. never

　　B. again

　　C. once

　　D. nearly

　　18. A. attitude

　　B. experience

　　C. skill

　　D. advantage

　　19. A. learn

　　B. take

　　C. see

　　D. make

　　20. A. badly

　　B. wisely

　　C. early

　　D. confidently

　　阅读理解

　　A

　　George Spilich at Washington College in Chestertown, Maryland, decided to find out whether, as many smokers say, smoking helps them to “think and fix their attention on (集中精力于)their work”. Spilich put young non－smokers, active smokers and smokers deprived(被剥夺)of cigarettes through a series of tests.

　　In the first test, each subject sat before a computer screen and pressed a key as soon as he or she recognized a certain letter among a grouping of 96. In this simple test, smokers, deprived smokers and non－smokers performed equally well. The next test was more difficult, requiring all to scan(扫描) groups of 20 letters and find the one of the letters changed into a different one. Non－smokers were faster, but under the stimulation(刺激)of nicotine, active smokers were faster than deprived smokers. In the third test of short－term memory, non－smokers made the fewest mistakes, but deprived smokers made fewer mistakes 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 did better than those who had smoked a cigarette just before testing. Active smokers were likely not only to have poorer memories but also had trouble separating important information from unimportant details.

【2017届高考英语二轮专题总复习 阅读能力培养精品系列（四十一）】相关文章：

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (24)

★ 2014届高考英语一轮复习课时作业(三)必修1Module 3《My First Ride on a Train》（外研版）

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ题型重组训练：第18组（含解析）

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (72)

★ 2017届高考英语二轮复习书面表达限时测验：5（含解析）

★ 【浙江专用】2014届高考英语一轮复习课时作业(八)必修2Unit 3《Computers》

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（12）附答案

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (3)

★ 【浙江专用】2014届高考英语一轮复习课时作业(二十六)选修6Unit 1《Art》

★ 2014届高考英语一轮复习课时作业(二十八)必修5Module 4《Carnival》（外研版）