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．are quicker in thinking                   
B．may feel refreshed soon after waking up
C．are 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．add up               D．build up．

Answer 1

分析 本文为科教类阅读，作者告诉读者平时睡眠不足在周末补觉的方式并不可取，并建议读者科学睡眠．

解答 61---65 CBBCA
61．答案C．主旨大意题．根据第一段"Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing，but it can give a false sense of security"和第二段第一句话"New research shows long-term sleep loss cannot be cured that easily"可知，平时没有睡好，在周末补觉效果是不好的．故选C．建议人们科学睡觉．
62．答案B．细节理解题．根据第二段"those who suffer long-term sleep loss may function normally soon after waking up"可知，长期缺少睡眠的人刚醒时会觉得很清醒．故选B．
63．答案B．细节理解题．根据第三段"But when those who suffer long-term sleep loss become all-nighters，"the harm is increased ten times"可知，熬夜对长期睡眠不足的人来说，伤害很大．故选B．
64．答案C．细节理解题．根据倒数第二段"More immediately，too little sleep affects reaction times"可知，长期睡眠不足会直接导致反应能力变慢．故选C．
65．答案A．词义猜测题．根据第一段"Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing"可推测，这里指的是在周末补觉．故选A pile up积累，堆放起来．pick up捡起，拾起，接某人．add up合计．build up建立，建造．

点评 科普类的阅读理解包含介绍科学知识、社会知识的短文．阅读这类短文时，要以事实为中心进行思考，抓住事物的特征、用途、相互关系等．如果是介绍社会现象的文章，要掌握所谈现象的内涵．答题技巧：1．加强整体意识，把握文章的主要内容．在阅读的时候可给段落标上序号，并给重要的句子和关键词做上记号，尤其是各段中心句，为答题提供更快捷更多的信息源．2．审清题干，发觉和把握试题中有效的提示性信息，确认命题的角度、阅读范围和答题方式．3．定位阅读，强化对应意识．同时要注意原文利用和自我加工相结合．