首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Yawning can be a problem at the office for Lindsay Eierman, which makes her embarrassed. "I’ve explained, ’I’m sorry, I didn’t g
Yawning can be a problem at the office for Lindsay Eierman, which makes her embarrassed. "I’ve explained, ’I’m sorry, I didn’t g
admin
2016-01-30
66
问题
Yawning can be a problem at the office for Lindsay Eierman, which makes her embarrassed. "I’ve explained, ’I’m sorry, I didn’t get much sleep last night,’" says Ms Eierman, a 26-year-old social worker from Durham, North Carolina. But a lack of sleep may not be the problem.
Researchers are starting to unravel the mystery surrounding the yawn, one of the most common and often embarrassing behaviours. Yawning, they have discovered, is much more complicated than previously thought. Although all yawns look the same, they appear to have many different causes and to serve a variety of functions.
Yawning is believed to be a means to keep our brains alert in times of stress. Contagious yawning appears to have evolved in many animal species as a way to protect family and friends, by keeping everyone in the group vigilant. Changes in brain chemistry trigger yawns, which typically last about six seconds and often occur in clusters.
To unravel the mystery of yawning, scientists built upon early, observed clues. Yawning tends to occur more in summer. Most people yawn upon seeing someone else do it, but infants and people with autism or schizophrenia aren’ t so affected by this
contagion
effect. And certain people yawn at surprising times, like parachutists who are about to jump out of a plane or Olympic athletes getting ready to compete.
A leading hypothesis is that yawning plays an important role in keeping the brain at its cool, optimal working temperature. The brain is particularly sensitive to overheating, according to Andrew Gallup, an assistant professor of psychology at the State University of New York at Oneonta. Reaction times slow and memory wanes when the brain’ s temperature varies even less than a degree from the ideal 98.6 degrees Fahrenheit.
There are some practical applications. Dr. Gallup said managers might want to keep in mind the brain-cooling role of yawning when a meeting is long and boring. "One way to diminish yawning frequency in an office would be to keep it air-conditioned. If it’ s very cold in the room, yawning rates are going to be quite low," Dr. Gallup said.
According to Paragraph 3, which of the following is NOT true about yawning?
选项
A、It always happens in groups
B、It makes people relax under pressure
C、It is caused by changes in brain chemistry
D、It usually lasts approximately six seconds
答案
B
解析
根据题干关键词定位到第三段。第三段第一句句意为“打哈欠可以让我们在感受到压力的时候使大脑处于警觉状态”,B项中的makes people relax和第一句中的keepour brains alert矛盾,故B项“它(打哈欠)让人们在压力下放松”不符合文意,故B项为正确答案。A项中的always happens in group与原文often occur in clusters是同义替换;C项中的is caused by与原文trigger是同义替换;D项中的usually lasts approximately与原文typically last about是同义替换,三项均符合原文,故排除。
转载请注明原文地址:https://kaotiyun.com/show/CvsZ777K
0
考研英语一
相关试题推荐
Doctors’sloppyhandwritingkillsmorethan7,000peopleannually.It’sashockingstatistic,and,accordingtoaJuly2006repo
Whymixingtwostrangerstogetherisn’tnecessarilyarecipefordisaster?RyanCostello,afreshmanmajoringincriminaljustic
Whyareyoungpeoplelesslikelytopurchasecars,orevenhavedriver’slicensesnowadays?Onetheoryhasitthatthegeneratio
Lessthanayearago,anewgenerationofdietpillsseemedtoofferthelong-soughtanswertoourchronicweightproblems.Hund
Lessthanayearago,anewgenerationofdietpillsseemedtoofferthelong-soughtanswertoourchronicweightproblems.Hund
TheMostNobleOrderoftheGarterisanEnglishorderofchivalrywithahistorystretchingbacktomedievaltimes;todayitis
[A]Tosomeextent,thispublichostilityiswelldeserved.ThebankruptciesofEnronintheU.S.andParmalatinItalylastwee
Theyare"financialweaponsofmassdestruction,"toquotethefamousinvestorWarrenBuffettashesurveyedthemorning-afterd
Likeotheracademicinstitutions,businessschoolsarejudgedbythequalityoftheresearchcarriedoutbytheirfaculties.At
Englishhasbeensuccessfullypromoted,andhasbeeneagerlyadoptedinthegloballinguisticmarketplace.Onesymptomoftheim
随机试题
微型计算机存储系统中的的Cache是
A.延髓B.脊髓C.脑桥D.下丘脑基本生命中枢位于
A.临时心脏起搏B.药物治疗C.安置永久性心房起搏器D.心脏电复律E.安置永久性房室顺序双腔心脏起搏器下列病例采用上述哪项治疗最合理:男性,26岁。因感冒2周后感胸闷就诊。体检:心率40~45次/min
4月28日,气温18~28.5℃,动物医院接诊一京巴犬(小名贝贝),1岁,♂,体况中等,体温39.3℃。主诉,最近发现该犬小便次数增加,颜色发黄,吃食渐少。临诊发现该犬精神委顿,不停弓腰举尾,但仅排出少量黄色尿液,滴水状,浑浊;腹胀,触诊腹壁较紧张、神态不
某档案馆大型档案储存室设计时整体采用二氧化碳气体管网灭火系统保护。档案储存室建筑面积790m2,地面至吊顶垂直距离4m,吊顶净高1m。则设计时应划分为()个气体灭火系统防护区。
会计核算软件具有查询机内会计数据的功能,发现错账时,可以随时修改。()
乙公司2014年全年税前会计利润为988万元,经查乙公司当年营业外支出中有12万元为税收滞纳金,适用所得税税率为25%。已知乙公司递延所得税负债年初数为40万元,年末数50万元,递延所得税资产年初数为25万元,年末数为20万元。乙公司2014年的所得税费用
"Whereistheuniversity?"isaquestionmanyvisitorstoCambridgeask,butnoonecangivethemaclearanswerforthereisno
MycousinNancyisofteninapoisonousmood;Isupposeit’sbecausesheis._____child.
A、Findanotherequipment.B、Connecthiscomputertotheoffice.C、Findthemanger’soffice.D、Dopreparationfortheminutes.B女
最新回复
(
0
)