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
2019-11-20
51
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/Zde4777K
0
考研英语二
相关试题推荐
Animportantfactorofleadershipisattraction.Thisdoesnotmeanattractivenessintheordinarysense,forthatisabornqua
Animportantfactorofleadershipisattraction.Thisdoesnotmeanattractivenessintheordinarysense,forthatisabornqua
WhichofthefollowingbestdescribestheAmerica’seconomicsituation?Whatistheauthor’sattitudetowardsomerecentfigure
TheInternetaffordsanonymitytoitsusers,ablessingtoprivacyandfreedomofspeech.Butthatveryanonymityisalsobehind
TheInternetaffordsanonymitytoitsusers,ablessingtoprivacyandfreedomofspeech.Butthatveryanonymityisalsobehind
Thegreatrecessionmaybeover,butthiseraofhighjoblessnessisprobablybeginning.Beforeitends,itwilllikelychanget
Theprocessofperceivingotherpeopleisrarelytranslated(toourselvesorothers)intocold,objectiveterms."Shewas5feet
ReadthefollowingtextandanswerthequestionsbychoosingthemostsuitablesubheadingfromthelistA-Gforeachnumberedpa
Insomeplaces,ithashelpedcurbcorruption,encouragedmoregirlstogotoschoolandenabledcitizenstomonitorelectionvi
[A]Theperson-skillsmatchapproachtoselection[B]Theimpactsofbadselectiondecisions[C]Theimportanceofstructu
随机试题
公司价值是指公司全部资产的市场价值,即______之和。
尿中β2微球蛋白增多而血中不增高,这种蛋白尿属于
下列有抗原性的纤维蛋白溶解药是
患者,男,33岁。3日来右下后牙痛,不能咬物。半年前,发现右下后牙龈有小包,平时无明显不适。检查见46龋深,穿髓孔探无感觉,叩诊(土),47、46间根尖处牙根有瘘管开口,压挤少许脓液流出。48前倾阻生,龈红肿明显,探龈袋深部有脓液。X线片见46远中根尖周X
电梯停止开关一般称急停开关,按要求在()必须装设停止开关。
安全评价是指以实现安全为目的,应用安全系统工程原理和办法,辨识与分析工程、系统、生产经营活动中的危险、有害因素,预测发生事故或造成职业危害的可能性及其严重程度,提出科学、合理、可行的安全对策措施建议,作出评价结论的活动。依据《安全评价通则》(AQ8001
定日付款的商业汇款,持票人应当在()向付款人提示承兑。
某市城乡建设委员会决定对某建筑公司在工程招标中的不良行为进行批评,适用的文种是()。
VBA中定义符号常量可以用关键字______。
A、Hegotanelectricshock.B、Thechocolateinhispocketmelted.C、Thepowertubeexplodedsuddenly.D、Hewashurtbytheradia
最新回复
(
0
)