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
2016-06-25
55
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、To exercise the jaw muscles.
B、To eliminate fatigue.
C、To get greater strength for attacking.
D、To gain more oxygen.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/QPRd777K
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
OnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcreditcard.Theygivetheirownersautomaticcreditin
What’sastudentinhissecondyearcalled.?
What’sthemaintopicofthemonologue?
Thefamilyinthewesternworldhaschangedgreatlyduringthelasttwocenturies.Beforethenineteenthcentury,families
Learningdisabilitiesareverycommon.They【21】______perhaps10percentofallchildren.Scientistsnowknowthereareman
Asthemerchantclassexpandedintheeighteenth-centuryNorthAmericancolonies,thesilver-smithandthecoppersmithbusiness
Wheredoesthismonologuetakeplace?______.
HotelswereamongtheearliestfacilitiesthatboundtheUnitedStatestogether.Theywere.bothcreaturesandcreatorsofcommu
Manyayoungpersontellsmehewantstobeawriter.Ialwaysencouragesuchpeople,butIalsoexplainthatthere’sabigdiff
KarenRusawasa30-year-oldwomanandthemotheroffourchildren.ForthepastseveralmonthsKarenhadbeenexperiencingrepe
随机试题
Word2010的视图不包括_____。
关于病毒核酸的描述,错误的是
下列属于《城市房地产开发经营管理条例》规定,可以发布广告的情形的是()。
海关检查进出境运输工具时,运输工具负责人应当到场,并根据海关的要求开启舱室、房间、车门;有走私嫌疑的,还应当开拆可能藏匿走私货物、物品的部位,搬移货物、物料等。()
不同的存货计价方法,对存货的周转率没有什么影响。()
根据《税收征管法》规定,纳税人有哪些情形时,税务机关有权核定应纳税额。
甲与乙在篮球赛中不慎发生碰撞,两人均受伤,各花去了5000元医疗费。据查,甲乙两人均无过错。请问,甲的人身损害应由谁承担?()。
可以关闭当前项目或者推出当前程序的Windows快捷键是(2)。
a和b中有且只有一个为0,其正确的表达式是()。
InpartsofBrazil’spoornortheast,snakesandparrotsareonsalebytheroadsideforafewreais.InBrazil,aselsewherein
最新回复
(
0
)