Question

16．Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing，but it can give a false sense of security．
New research shows long-term sleep loss cannot be cured that easily．Scientists researched the effects of short-and long-term sleep loss and found that those who suffer long-term sleep loss may function normally soon after waking up，but experience steadily slower reaction times as the day goes by，even if they had tried to catch up the previous night．
The research has important safety significances in an increasingly busy society，not just for shift-workers but for the roughly one in six Americans who regularly get six hours or less of sleep a night．
"We know that staying awake 24 hours without sleep will affect your performance to do all sorts of things，and this effect equals to drinking too much when driving，"said lead researcher Dr．Daniel Cohen of Boston's Brigham and Women's Hospital．But when those who suffer long-term sleep loss become all-nighters，"the harm is increased ten times，"Cohen said．
The National Institutes of Health says adults need seven hours to nine hours of sleep for good health．Regularly getting too little sleep increases the risk of health problems，including memory impairment and a weakened immune system．More immediately，too little sleep affects reaction times； sleepiness is to blame for car crashes and other accidents．
It has critically important complicated and unexpected results for anyone who works"crazy hours"and thinks they are performing fine with a few hours of weeknight sleep，said Harris，director at New York's Montefiore Medical Center．"Don't think you can just bank up your sleep on the weekend，because it doesn't work that way，"he warned．
61．The text mainly advises peopleC．
A．to sleep more time                         
B．to sleep in on Saturday
C．to sleep scientifically                     
D．to sleep little on weekend
62．People with long-term sleep lossB．
A．a(chǎn)re quicker in thinking                   
B．may feel refreshed soon after waking up
C．a(chǎn)re surely energetic                        
D．can have a strong sense of security
63．What can we learn from the text？B
A．Most of the Americans get six hours or less of sleep a night．
B．Staying up is worse for those who suffer long-term sleep loss．
C．Traffic accidents have little to do with sleepiness．
D．One in six Americans are all-nighters．
64．Which of the following is the immediate effect of long-term sleep loss？C
A．Health problems                            
B．Immune system
C．Reaction times                              
D．Memory impairment
65．The underlined phrase"bank up"in the last paragraph most probably meansA．
A．pile up      B．pick up      C．a(chǎn)dd up               D．build up．

Answer 1

分析 本文為科教類閱讀，作者告訴讀者平時睡眠不足在周末補覺的方式并不可取，并建議讀者科學(xué)睡眠．

解答 61---65 CBBCA
61．答案C．主旨大意題．根據(jù)第一段"Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing，but it can give a false sense of security"和第二段第一句話"New research shows long-term sleep loss cannot be cured that easily"可知，平時沒有睡好，在周末補覺效果是不好的．故選C．建議人們科學(xué)睡覺．
62．答案B．細節(jié)理解題．根據(jù)第二段"those who suffer long-term sleep loss may function normally soon after waking up"可知，長期缺少睡眠的人剛醒時會覺得很清醒．故選B．
63．答案B．細節(jié)理解題．根據(jù)第三段"But when those who suffer long-term sleep loss become all-nighters，"the harm is increased ten times"可知，熬夜對長期睡眠不足的人來說，傷害很大．故選B．
64．答案C．細節(jié)理解題．根據(jù)倒數(shù)第二段"More immediately，too little sleep affects reaction times"可知，長期睡眠不足會直接導(dǎo)致反應(yīng)能力變慢．故選C．
65．答案A．詞義猜測題．根據(jù)第一段"Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing"可推測，這里指的是在周末補覺．故選A pile up積累，堆放起來．pick up撿起，拾起，接某人．a(chǎn)dd up合計．build up建立，建造．

點評 科普類的閱讀理解包含介紹科學(xué)知識、社會知識的短文．閱讀這類短文時，要以事實為中心進行思考，抓住事物的特征、用途、相互關(guān)系等．如果是介紹社會現(xiàn)象的文章，要掌握所談現(xiàn)象的內(nèi)涵．答題技巧：1．加強整體意識，把握文章的主要內(nèi)容．在閱讀的時候可給段落標上序號，并給重要的句子和關(guān)鍵詞做上記號，尤其是各段中心句，為答題提供更快捷更多的信息源．2．審清題干，發(fā)覺和把握試題中有效的提示性信息，確認命題的角度、閱讀范圍和答題方式．3．定位閱讀，強化對應(yīng)意識．同時要注意原文利用和自我加工相結(jié)合．