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
55
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
DoesWallStreetowethepeopleofAmericaanapology?ThatwasSenatorSherrodBrown’ssuggestiontoBenBernankeandHankPaul
Thissummer,asOlympicathletesgofaster,higher,andstrongerinLondon,arecordhasfalleninalabinHamburg:Scientists
TheMostNobleOrderoftheGarterisanEnglishorderofchivalrywithahistorystretchingbacktomedievaltimes;todayitis
AlisonPrestonoftheUniversityofTexasatAustin’sCenterforLearningandMemoryexplains:Ashort-termmemory’sconversion
Archaeologyasprofessionfacestwomajorproblems.First,itisthepoorestofthepoor.Onlypaltrysumsareavailableforexc
Likeotheracademicinstitutions,businessschoolsarejudgedbythequalityoftheresearchcarriedoutbytheirfaculties.At
Likeotheracademicinstitutions,businessschoolsarejudgedbythequalityoftheresearchcarriedoutbytheirfaculties.At
Likeotheracademicinstitutions,businessschoolsarejudgedbythequalityoftheresearchcarriedoutbytheirfaculties.At
Englishhasbeensuccessfullypromoted,andhasbeeneagerlyadoptedinthegloballinguisticmarketplace.Onesymptomoftheim
Englishhasbeensuccessfullypromoted,andhasbeeneagerlyadoptedinthegloballinguisticmarketplace.Onesymptomoftheim
随机试题
在商标权人连续三年停止使用注册商标的情况下,下列说法中正确的是()
具有收缩瞳孔作用的药物是
中华人民共和国卫生部颁布的《医务人员医德规范及实施办法》这一文献的基本精神是
甲企业以乙公司所使用的商标侵犯其注册商标专用权为由提起诉讼,乙公司以甲企业的注册商标系复制其在先未注册驰名商标为由提起反诉,应当对未注册商标驰名的事实负举证责任的是:
网络计划优化的目标有()。
按国债资金的来源将国债划分为()。
下列抗震设防类别中,大量的建筑物属于(),这类建筑的地震作用和抗震措施均应符合本地区抗震设防烈度的要求。
票据出票日期使用小写的,银行可以受理,但由此造成的损失由出票人承担。()
根据民事诉讼法律制度的规定,审判过程中出现()情况,人民法院可以按撤诉处理。
请简述初中生反抗心理产生的原因及表现。
最新回复
(
0
)