8．Growing up in a hard-working midwestern city，I quickly learned that sleep hour is the first thing I can sacrifice．When I was young，the men I adored and respected regularly ran on just five hours of sleep，which led me to view needing sleep as a sign of weakness．
The problem is，one less hour of sleep is not equal to an extra hour of achievement．In many cases the opposite occurs．When you lose an hour of sleep，it decreases your productivity，health，and ability to think the following day．The lack of sleep can lead to many other negative events．In addition to less achievement at work，you skip regular exercise，and eat poorly．
According to a survey from the National Sleep Foundation，roughly 70percent of those surveyed do not get enough sleep．Another influential study，conducted by Professor Anders Ericsson from University of Chicago，found that top performers sleep 8hours and 36minutes per day．The average American，for comparison，gets just 6hours and 51minutes of sleep．
People now realize the importance of eight hours of quality sleep．While getting this much quality sleep each night is easier said than done．There are a few tips to improve your night's sleep．What you do before bed matters most．More than 90percent of Americans admit to using smart phones in the hour before bed．This is an obvious problem in terms of allowing your mind to continue thinking actively．What you may not realize is that the light from mobile phones alone is a more direct threat to your sleep．So remember to keep away from all electronic devices in the hour before your bedtime．Creating the right environment in your bedroom can also help．It is easier to sleep in a room that is a few degrees cooler than the temperature you are accustomed to throughout the daytime．
Sacrificing sleep may no longer be a sign of strength．You will be more likely to get more work done when you put sleep first．Every hour of sleep is a wise investment（投資）-not an expense．
32．The lack of sleep has the flowing negative effects EXCEPTD．
A．a(chǎn)ffecting the ability to think
B．shortening the exercise time
C．decreasing achievement at work
D．causing addiction to electronic devices
33．What did the study done by National Sleep Foundation find？B
A．The better you are，the longer your sleep time is．
B．Only 30percent of those surveyed get enough sleep．
C．If you don't perform well at work，your sleep time will be reduced．
D．A man can't guarantee his productivity without eight hours of quality sleep．
34．What is the purpose of the text？A
A．Providing useful tips for quality sleep．
B．Introducing a new finding of a scientific study．
C．Correcting a wrong opinion about sleep and work．
D．Making known the difficulty of getting sound sleep．
35．What can be the best title for the text？C
A．Smart phone，a treat to sound sleep．
B．Sacrificing sleep，a sign of weakness．
C．Enough quality sleep，clever investment．
D．The more sound sleep，the less contribution．
分析 文章介紹了睡眠不足對(duì)身體的危害，并且提出了關(guān)于睡眠的建議，希望人們可以保證充足的睡眠．
解答 32．D．理解判斷題．由第二段中In addition to less achievement at work，you skip regular exercise，and eat poorly．可知如果你睡眠不足，可能會(huì)導(dǎo)致一系列的不良后果．你的工作效率會(huì)下降，定期的體育鍛煉也不再堅(jiān)持，飲食也會(huì)一團(tuán)糟，D選項(xiàng)沒(méi)有提到，故選D．
33．B．細(xì)節(jié)理解題．由第三段中roughly 70percent of those surveyed do not get enough sleep．可知百分之七十的人睡眠不足，因此僅百分之三十的人有充足睡眠，故選B．
34．A．寫(xiě)作意圖題．由文意可知，文章后面主要是提出了關(guān)于睡眠的建議，故選A．
35．C．選擇題目題．由文意可知，文章介紹了睡眠不足的危害和提出了關(guān)于睡眠的建議，希望人們可以保證充足的睡眠，因此C選項(xiàng)符合題意，故選C．
點(diǎn)評(píng) 在做閱讀理解時(shí)，考生可快速閱讀短文，通讀測(cè)試題，明確考察點(diǎn)，在對(duì)應(yīng)細(xì)讀，加快做題速度．有時(shí)間還可以復(fù)查校對(duì)答案．
