2022年高考英语二轮复习第一部分专题增分练课时书面表达-求助信 .pdf
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1、1 课时 17 书面表达(五)-求助信.阅读理解AEver feel like youve been hit on the head after a bad nights sleep?According to scientists,the thought isnt as unbelievable as it seems.A study found going without sleep for just one night causes changes in the brain similar to those that occur after a blow to the head.The r
2、esearchers said the healthy young men examined in the study showed a sudden increase in the same chemicals which indicate brain damage.Professor Christian Benedict,of Uppsala University,Sweden,explained that the chemicals NSE and S-100B are biomarkers(生物指标)for brain damage,such as concussion(脑震荡).He
3、 said,“What we found was their levels in the blood rose in the group that went without sleep for a night.This was not to the extent that would happen after a head injury,for instance,but it was still significant.During sleep,the brain cleans poisonous substances off itself.”Benedict also said previo
4、us studies which linked a lack of sleep with increased risk of Alzheimers,Parkinsons and multiple sclerosis could applaud his study.The rise of the chemicals in the blood after sleep loss may suggest not getting enough sleep contributes to a loss of brain tissue,he explained.Benedict,whose study is
5、published in the journal Sleep,added,“In conclusion,the findings of our experiment indicate a good nights sleep may be critical to maintaining brain health.”A third of the UK population suffer from sleep-related problems,while the average person now sleeps for only seven hours a night,compared with
6、almost nine a few decades ago.Many scientists believe irregular sleeping patterns lead to illnesses ranging from aches and pains to heart disease,while less than eight hours sleep a night can lower the IQ the next day.语篇解读 本文是一篇科普类说明文。科学家们发现,睡眠不足对大脑造成的损伤接近头部重击。不足八小时的睡眠甚至会降低第二天的智商。1.If you dont sleep
7、 for a night,what will happen?A.NSE and S-100B will increase.B.The brain damage will be like a head injury.C.You will suffer from concussion.D.The brain will get rid of poisonous substances.解析:考查细节理解。文章第二段的“What we found was their levels in the blood rose in the group that went without sleep for a n
8、ight”中的their指的就是前面提到的“the chemicals NSE and S-100B”,由此可知,一晚上不睡觉的话,血液中的化学物质 NSE和 S-100B 就会增加。答案:A 2.What do we know about previous studies?A.They found reasons for brain disorders.B.Their findings were published in Sleep.名师资料总结-精品资料欢迎下载-名师精心整理-第 1 页,共 6 页 -2 C.They were supported by Benedicts study.D
9、.They focused on brain health.解析:考查推理判断。根据第三段中的“Benedict also said previous studies which linked a lack of sleep with increased risk of Alzheimers,Parkinsons and multiple sclerosis could applaud his study”可知,Benedict说先前的研究会赞成他的研究,接着 Benedict解释了为什么先前的研究会赞成他的研究,即“The rise of the chemicals in the blood
10、 after sleep loss may suggest not getting enough sleep contributes to a loss of brain tissue”。综上可推知,Benedict的研究支持了先前的研究。答案:C 3.What can we infer from the last paragraph?A.UK people have the worst sleep.B.Mans intelligence is affected by sleep in a way.C.People were smarter in the past.D.A lack of sl
11、eep causes all brain-related problems.解析:考查推理判断。根据文章最后一段中的“less than eight hours sleep a night can lower the IQ the next day”可知,睡眠少于八小时的人第二天智商会降低,这暗示人的智力在某种程度上受睡眠的影响。故B项正确。答案:B 4.Whats the main idea of the passage?A.Eight hours sleep is important.B.Regular sleeping patterns improve health.C.Sleep lo
12、ss is close to a blow to the head.D.Human brains work during sleep.解析:考查主旨要义。根据文章内容,尤其是第一段及第二段的首句可知,本文主要围绕“睡眠不足对大脑造成的损伤接近于头部遭重击”这一主题展开。故 C项最能概括文章的大意,而其他选项都比较片面。答案:C BIt seems that the great desire among the young is to be popular.The desire to be popular can force you into looking and acting like ev
13、eryone else.You can lose yourself in a sea of identical hairstyles and thinking styles.I was forced to think about popularity not too long ago in a talk I had with my daughter.Margy had to change schools when my busy work schedule made it necessary for me to move houses.I suppose that,for a girl in
14、her teens,entering a new school is like spending a season alone in the tropical jungles.At least thats how Margy found it at first.However,as the school year drew to a close,one student after another came to her.I told Margy that I would have been more concerned if she had been an instant social suc
15、cess in her new school.Nobody can please everyone.If you try to do so,you will find values as lasting as soap bubbles blown into the air.Some teenagers claim they want to dress as they please.But they all wear the same clothes.They set off in new directions in music.But somehow they all end up liste
16、ning to the same record.Their reason for thinking or acting in a certain way is that the crowd is doing it.They have come out of their cocoon into a larger cocoon.名师资料总结-精品资料欢迎下载-名师精心整理-第 2 页,共 6 页 -3 I know that it has become harder for a young person to stand up against the popularity wave.Our way
17、 of life makes a young nonconformist stand out like a Martian.These days theres a great barrier for the young person who wants to find his or her own path.But the barrier is worth climbing over.You may want to listen to classical music instead of going to a party.Well,go to it.Be yourself.Popularity
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