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
2017-01-12
33
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 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/hBEZ777K
0
考研英语一
相关试题推荐
Icametofeminismthewaysomepeoplecometosocialmovementsintheirearlyyears:outofself-interest.Igotontheequalit
Menaregenerallybetterthanwomenontestsofspatialability,suchasmentallyrotatinganobjectthroughthreedimensionsor
ThestaggeringvarietyoffreestuffavailableontheInternetsometimesseemstohaverepealedthefirstlawofeconomics:Ther
SupposeyouarestrivingtofindajobinABCCompany.WritealetterofrequesttoyourteacherProfessorBrownto1)askh
About3billionpeoplelivewithin100miles(160km)ofthesea,anumberthatcoulddoubleinthenextdecadeashumansflockt
TheU.S.systemofhighereducationiswidelyconsideredtheworld’sbest.Acollegeeducation【C1】______substantialbenefits—abo
Couldyoursmartphonepreventacarfromhittingyou?GeneralMotorsandotherresearchersthinkthat’sapossibility【C1】______a
Brandsarebasicallyapromise.Theytellconsumerswhatqualitytoexpectfroma【C1】______andshowoffitspersonality.Firmsi
Brandsarebasicallyapromise.Theytellconsumerswhatqualitytoexpectfroma【C1】______andshowoffitspersonality.Firmsi
随机试题
在GB/T10346-2006中,()不是采样标签上应标注的内容。
活动后出现血尿伴腰痛,应首先考虑的是
患者,女,46岁。口渴,小便频数,下半身常有冷感,腰痛脚软,舌淡胖苔薄白,脉沉弦。治疗应选用()
男,56岁,活动后心悸、气短近2个月,2天前开始出现喘憋加重,不能平卧。双肺可闻及湿性啰音,双下肢中度水肿,腹部检查肝脾未触及。胸部X线检查显示心胸比0.65,超声心动图左室舒张末径6.3mm,左室射血分数36%。近期采用的治疗中,哪项是错误的
通草的药用部位为()。
钢板用两个铆钉固定在支座上,铆钉直径为d,在图示载荷下,铆钉的最大切应力是:
规模小、时间短、专业面窄的项目适宜采用的组织形式是()。
在进行的“全国股民投资风险意识调查”中,总体是()。
奖金制度的制定程序包括()。
张教练:和古代奥运会不同,现代奥运会允许专业运动员和业余运动员一起比赛。专业运动员一般都有业余运动员所缺少的物质和技术资源,特别是有些专业运动灵是由国家直接培养的,这使得专业运动员和业余运动员之间的比赛事实上不平等。因此,允许专业运动员参加比赛违反奥运会的
最新回复
(
0
)