8.The bed should be reserved as a place for sleep,but people tend to read an iPad a lot in bed before they go to sleep.
Charles Czeisler,a professor at Harvard Medical School,and his colleagues got a small group of people for an experiment.For five days in a row,the people read either a paper book or an iPad for four hours before sleep.Their sleep patterns were monitored all night.Before and after each trial period,the people took hourly blood tests to paint a day-long picture of just how much melatonin (褪黑激素) was in their blood at any given time.
When subjects read on the iPad as compared to the paper books,they reported feeling less sleepy at night and less active the following morning.People also took longer to fall asleep on the iPad nights,and the blood tests showed that their melatonin secretion (分泌) was delayed by an hour and a half.
The researchers conclude in today's journal article that given the rise of e-readers and the increasingly widespread use of e-things among children and adolescents,more research into the long-term consequences of these devices on health and safety is urgently needed.Czeisler and colleagues go on,in the research paper,to note:"Reading an iPad in bed may increase cancer risk."
However,software has been developed that can reduce some of the blue light from the screens of phones and computers according to time of day,and there are also glasses that are made to filter (過濾) short wavelengths.While they seem like a logical solution for the nighttime tech users,it needs more research.
28.In Charles Czeislers experiment,all the subjects were asked toB.
A.sit in a row and receive the strict tests             
B.have their sleep patterns observed all night
C.read a paper book and an iPad at the same time      
D.have their blood tested per hour during the trial
29.The third paragraph tells us the iPad readers were likely toC.
A.feel less sleepy and tired in the day    
B.fall asleep more easily after reading
C.become less energetic the next morning 
D.have a lot more melatonin secretion
30.The special software recently developed canC.
A.remove the blue light from your devices completely
B.help prevent eyes being harmed by short wavelength
C.weaken the harm done by doing nighttime e-reading
D.be used in all the e-things widely and safely
31.Which of the following can be the best title for the text?A
A.No e-reading in bed before sleep
B.New software for night e-readers
C.Wrong behaviors before bedtime 
D.No games on iPad in bed.

分析 文章講述的是床是睡覺的地方,可是現(xiàn)在有些人喜歡在睡之前躺在床上看iPad.教授的抽查研究表明,這樣對身體很有害.那么需要進(jìn)一步研究更先進(jìn)的可減少對身體危害的軟件.

解答 28.B.細(xì)節(jié)理解題.根據(jù)第二段第一至第三句"Charles Czeisler,a professor at Harvard Medical School,and his colleagues got a small group of people for an experiment.For five days in a row,the people read either a paper book or an iPad for four hours before sleep.Their sleep patterns were monitored all night."可知是觀察他們一整夜的睡眠模式.故選B.
29.C.推理判斷題.根據(jù)第三段第一句"When subjects read on the iPad as compared to the paper books,they reported feeling less sleepy at night and less active the following morning."可知第二天精力變得沒有那么充沛.故選C.
30.C.細(xì)節(jié)理解題.根據(jù)最后一段的描述However,software has been developed that can reduce some of the blue light from the screens of phones and computers according to time of day,and there are also glasses that are made to filter (過濾) short wavelengths可知,這個(gè)特殊的軟件可以削弱夜間電子閱讀所造成的傷害.故選C.
31.A.推理判斷題.首段的內(nèi)容"The bed should be reserved as a place for sleep,but people tend to read an iPad a lot in bed before they go to sleep."可知,人們應(yīng)該在床上睡覺,而不是看電子書.可知標(biāo)題的適合選項(xiàng)為A.

點(diǎn)評 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力,做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句,和題干進(jìn)行比較,再做出正確的選擇.在做推理判斷題不要以個(gè)人的主觀想象代替文章的事實(shí),要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源: 題型:選擇題

18.If you don't know what it means,______ the dictionary.( 。
A.look upB.refer toC.point toD.look out

查看答案和解析>>

科目:高中英語 來源: 題型:填空題

19.From then on,I grew rapidly both in size and in brainpower.By the 1940s I had grown as large as a room,and I wondered if I would grow any larger.However,this reality also worried my designers..

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

16.Share with us
Would you like to have your writing published in this magazine?
Then let us know!We pay for stories,anecdotes and jokes:
Anecdotes (趣聞軼事)and Jokes
50
What's made you laugh recently?A funny sign?A colleague's(同事的) behaviour?Got a joke?Send it in for Laughter is the Best Medicine!
Email:Juliet@sws.com
Smart Animals
Up to 100
Send us a tale about the strange behaviour of unique pets or wildlife in up 300words.
Email:audry@sws.com
Power of Love
Up to 150
Acts of generosity can change lives or just give you that warm feeling full of love.Share your moments 100-500words.
Email:susan@sws.com
My Story
350
Do you have an inspiring or life-changing story to tell?Your story must be true,unpublished,original and 800-1000words.
Email:nanjc@sws.com
For more information,please visit:http://www.sws.com./share
1.How much will the magazine pay for a joke to be published?A
A.50          
B.100        
C.150         
D.350
2.If you want to share a story of your pets with the readers,you need to submit it toB.
A.Anecdotes and Jokes    
B.Smart Animals     
C.Power of Love     
D.My Story
3.A story showing people's generosity should be emailed to the editor atB.
A.juliet@sws.com     
B.susan@sws.com    
C.Audrey@sws.com    
D.nanjc@sws.com
4.An inspiring story sent to the magazine shouldC.
A.describe strange behaviour              
B.contain less than 800words
C.be real and original                    
D.be published before.

查看答案和解析>>

科目:高中英語 來源: 題型:填空題

3.Iwould ratherstay at home than go out.
我寧愿呆在家也不愿意出去.

查看答案和解析>>

科目:高中英語 來源: 題型:填空題

13.The grasslandscenery(景色)of Tibet is too beautiful for words.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

20.Nothing is more tiresome than being stuck in a boring class.Every second takes ages to tick by.A recent survey of American kids revealed that 91 percent experience boredom.In fact,adolescence is considered a peak period for the problem.One study showed that roughly one in three teenagers was bored at school.
Peter Stromberg,professor at the University of Tulsa says,"Our brains adapt really quickly to certain levels of stimulation(刺激).We get used to the media providing levels of highly emotional stimulation,and when we're not getting them we feel bored.As our society develops various ways of keeping us entertained,we may discover that rather than getting rid of boredom,we're multiplying it."Luckily,new research is implying a way that we can battle the trend.
Professor John D.Eastwood of the University of York developed a new theory of boredom,which links it to the brain's attention system-the part of the brain that we use to focus.Anything the attention system in your brain locks onto will be automatically sucked up into your conscious awareness-it might be a bird outside the window,the pleasant smell of lunch,or even someone sleeping in the back of the class.
The problem is that your attention system doesn't like being told what to do.It wants to focus on stuff that you find fun and interesting.For the parts of school that you enjoy,this isn't a problem.But for those classes that don't interest you,or present too much or too little challenge,the story is very different.In those situations,you're going to have to spend a lot of effort constantly redirecting your attention system to focus on things it would rather ignore.And the effort is going to wear you out.Eastwood describes it as"wanting,but being unable,to be involved in a satisfying activity."It's like a block in the system.And it's the awareness of that block combined with a sense that the environment is to blame that leads to feelings of boredom.
When we're bored we blame the world around us,but Eastwood's theory challenges this assumption:Boredom doesn't exist out there; it exists inside your brain.What that means is-hard as it may be to hear-boring lessons aren't only the fault of your teacher or the subject,they're your fault too.

67.According to Peter Stromberg,D.
A.teenagers are victims of boredom
B.our brains demand much stimulation
C.we've grown dependent on media for fun 
D.the way we have fun makes us become bored
68.According to Paragraph 4,the attention systemB.
A.doesn't like challenges
B.enjoys interesting things
C.does what you want it to do
D.can make our efforts fruitless
69.What might the author suggest about a boring class?B
A.Focusing more attention on it.
B.Changing the way we look at it.
C.Employing various teaching methods.
D.Challenging the disturbing environment.
70.What might be the best title for the passage?A
A.Escape Your Boredom
B.Battle Your Attention
C.Fun or Boredom?
D.Who Is to Blame?

查看答案和解析>>

科目:高中英語 來源: 題型:聽力題

17.A.Mathematics.    B.Chemistry.    C.Physics.    D.Chinese.

查看答案和解析>>

科目:高中英語 來源: 題型:聽力題

18.A.To a hotel.
B.To a restaurant.
C.To a training class.
D.To the train station.

查看答案和解析>>

同步練習(xí)冊答案