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
2018-12-01
54
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
细节题。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keep our 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 approxi mately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/0c6Z777K
0
考研英语一
相关试题推荐
Nearlytwo-thirdsofbusinessesintheUKwanttorecruitstaffwithforeignlanguageskills.Frenchisstillthemosthighlypr
"AMZN"isafour-letterwordtomanybooksellers.Theonlineretailerhasbeen【C1】______ofkillingthebooksellingindustry.It
TheEconomistcalculatesthataroundtheworldalmost290million15-to24-year-oldsareneitherworkingnorstudying:almosta
TheEconomistcalculatesthataroundtheworldalmost290million15-to24-year-oldsareneitherworkingnorstudying:almosta
Marriageis,formanypeople,theirmostimportantrelationship,thesourceofmuchhappiness,and,forsome,evenaddsextraye
AwaronsugarhasbegunintheUKthatechoesthenation’ssuccessfulcampaignagainstsalt.Theeffortis【C1】______becauseit
Researchhasshownthat—inbothsexesandacrossnumerouscultures—attractivepeoplearejudgedtobesmarter,kinder,morehone
Womenhavelongbeenmoreinnumberthanmenoncollegecampuses.Theyalsoholdmoreadvanceddegreesthantheirmale【C1】______
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
Eatinghealthilycostsabout$1.50moreperpersondaily,accordingtothemostthoroughreviewyetoftheaffordabilityofahe
随机试题
A.异染颗粒B.硫磺颗粒C.内基小体D.原体E.始体白喉杆菌的形态特点是
A.发热期B.低血压休克期C.少尿期D.多尿期E.恢复期继发性休克多发生在流行性出血热的哪一病期
下列关于TAT的叙述,其中错误的是
下图为项目建设各阶段投资目标计划值与实际值的比较,其中不包括()。
下列关于企业核心竞争力分析的表述中,正确的有______。
现代城市规划形成的行政实践是指()。
专利纠纷案件属于()的管辖。
柳永《望海潮》中“三吴都会”中的“三吴”是指现今的()。
背越式跳高助跑步数为8~12步,采用的助跑方式是()。
设f(x)在[a,b]上二阶可导,|f"(x)|≤M,又f(x)在(a,b)内能取到最小值,证明:|f’(a)|+|f’(b)|≤M(b-a).
最新回复
(
0
)