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
外语
What’s the main topic of the monologue?
What’s the main topic of the monologue?
admin
2019-10-21
37
问题
What’s the main topic of the monologue?
Today’s discussion is about a common animal reaction—the yawning. The dictionary defines a yawn as " an involuntary reaction to fatigue or boredom". That’s definitely true for human yawns but not necessarily for animal yawns. The same action, the yawn, can have quite different meanings in different species.
For instance, some animals yawn to intimidate intruders on their territory. Fish and lizards are examples of this. Hippos use yawns when they want to resolve a quarrel. Observers have seen two hippos yawn at each other for as long as two hours before they stop quarreling.
As for social animals like baboons or lions—they yawn to set up the pecking order within social groups,and lions often yawn to calm social tensions. Sometimes these animals yawn for a strictly physiological reason— that is to increase oxygen levels. And curiously enough, when they yawn for a physical reason like that, they do what men do—they try to stifle the yawn by looking away or by covering their mouths.
选项
A、When they are swimming.
B、When they are quarreling.
C、When they are socializing.
D、When they are eating.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/KHCd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Amarketiscommonlythoughtofasaplacewherecommoditiesareboughtandsold.Thusfruitandvegetablesaresoldwholesale
Amarketiscommonlythoughtofasaplacewherecommoditiesareboughtandsold.Thusfruitandvegetablesaresoldwholesale
Mr.Smith,apassengeronthetranscontinentaltrain,appearedbeforethejudge.Apoliceofficerclaimedhehadattemptedto【
Studythefollowingcartooncarefullyandwriteanessayonit.Inyouressay,youshould(1)describethecartoonbriefly,
Studythefollowingcartooncarefullyandwriteanessayonit.Inyouressay,youshould(1)describethecartoonbriefly,
Whatcropsdoesthefarmergrow?
gotpromotion
TheGentleman’sHouse
gettingmarried
Whyarewefarfromsatisfiedwithourbasicneeds?
随机试题
在驶车辆办理次年缴费手续时,须在上年11月末前办理。()
肾内具有离子感受器功能的细胞是
下列实验室检查指标中,最能反映贫血程度的是()。
( )可以使回购式债券不被冻结从而提高债券的利用效率。
下列有关风险限额管理的说法中,错误的是()。
要全面认识公有制经济的含义,公有制经济包括()。
信息维护的主要目的在于保证信息的准确、及时、安全和保密。系统维护主要包括________。
如果东北、西南的读者总数与西北、其他地区的总数相差10,000人,那么华东地区与华中地区的读者相差()人。
省政府决定开展食品安全专项整治工作,为了落实工作要求,市政府领导指示由你负责此项工作,要求组织一些人员认真筹备,务必做好落实。食品安全专项整治工作可以由多部门协同操作,作为负责人,你认为可以协同哪些部门?()
A、 B、 C、 D、 C
最新回复
(
0
)