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
Earthquake and Animals Scientists who try to predict earthquakes have gotten some new helpers recently —animals. Animals often
Earthquake and Animals Scientists who try to predict earthquakes have gotten some new helpers recently —animals. Animals often
admin
2009-06-15
66
问题
Earthquake and Animals
Scientists who try to predict earthquakes have gotten some new helpers recently —animals. Animals often seem to know in advance that an earthquake is coming, and they show their fear by acting in strange ways. Before a quake 地震) in China in 1975 snakes awoke from their winter sleep early only to freeze to death in the cold air. All the unusual behavior, as well as physical changes in earth, alerted (提醒) Chinese scientists to the coming quake. They moved people aw/ay from the danger zone and saved thousands of lives.,
One task for scientists today is to learn exactly which types of animal behavior predict quakes. It is not an easy job. First of all not every animal reacts to the danger of an earthquake. Just before a California quake in 1979, for example, an Arabian horse became very nervous and tries to break out of his stall. The horse next to him, however, remained perfectly calm. It is also difficult sometimes to tell the difference between normal animal cahnness and "earthquake nerves". A zookeeper once told earthquake researchers that his cougar (美洲狮) had been acting strangely. It turned out that the cougar had a stomachache.
A second task for scientists is to find out. exactly what kinds of warning the animals receive. They know that animals sense far more of the world than humans do. Many animals can see, hear, and smell things that people do not even notice. Some can detect tiny changes in air pressure, gravity, or the magnetism (磁力) of earth. This extra sense probably helps animals predict earthquakes.
A good example of this occurred with a group of dogs. They were closed in an area that was being shaken by a series of tiny earthquakes. Before each quake a low boomingsound was heard. Each sound caused the dog to bark (吠) wildly. The dogs began to bark during a silent period! A scientist who was recording the quakes looked at his machine. He realized that the dogs had reacted to a booming noise. They also sensed the tiny quake that followed it. The machine recorded both, though humans felt and heard nothing.
In this case there was a machine to check what the dogs were sensing. Many times, however, our machines record nothing out of the ordinary, even though animals know a quake is coming. The animals might be sensing something we do measure but do not recognize as a warning. Discovering
what animals sense, and learning how they know danger signals, is a job for future.
选项
A、Right
B、Wrong
C、Not mentioned
答案
C
解析
借助问题句的特征词(cows)和数字(1975)为答案线索,在文章中查找答案相关句。于是在第l段第3句找到答案相关句(涉及到该年代的句子),但该句中并没有提到COWS,所以判定答案为“没提到”。
转载请注明原文地址:https://kaotiyun.com/show/wdhd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
ReadingPoemNopoemshouldeverbediscussedor"analyzed",untilithasbeenreadaloudbysomeone,teacherorstudent.Be
F.D.RooseveltWhenPresidentFranklinD.RooseveltcollapsedanddiedofastrokeinApril12,1945,thenationwentinto
Smokingisconsidereddangeroustothehealth.Ourtobacco--seller,Mr.Johnson,therefore,alwaysaskshiscustomers,iftheya
Smokingisconsidereddangeroustothehealth.Ourtobacco--seller,Mr.Johnson,therefore,alwaysaskshiscustomers,iftheya
BreastCancerDeathsRecordLowThenumberofwomendyingfrombreast(乳房)cancerhasfallentoarecordlowbydroppingund
A.thequakeitselfB.accuratepredictionC.damageofpropertyandlossoflivesD.apossibleearthquakeE.theunusualbehav
Earthquake1.Everyyearearthquakesareresponsibleforalargenumberofdeathsandavastamountofdestructioninvariou
PlantGasScientistshavebeenstudyingnaturalsourcesofmethanefordecadesbuthadn’tregardedplantsasaproducer,not
PlantGasScientistshavebeenstudyingnaturalsourcesofmethanefordecadesbuthadn’tregardedplantsasaproducer,not
随机试题
企业资产清查中,经检查仍无法查明原因的固定资产盘亏,经批准后应计入()
鉴别肾癌和。肾囊肿最可靠的方法是
浇筑承台混凝土的模板通常采用( )。
()是指参考公开市场价格、历史平均价格或最近成交价格,按照审慎原则直接确定拟接受押品的评估价值。
我国的一般诉讼时效为()年。
猴子能认识事物的外部联系,说明它们的心理发展到了()阶段。
Althoughthetopmeninsmugglingbusinessmustworktogether,mostofasyndicate’ssmallfry,especiallythemules,knowonly
理想是多方面和多类型的,从不同的角度审视,可以把理想划分为多种类型。从理想的主体上划分,理想有
习近平指出:“人民民主是社会主义的生命。没有民主就没有社会主义,就没有社会主义的现代化,就没有中华民族伟大复兴。”社会主义民主的本质和核心是()
在窗体上画一个命令按钮(其Name属性为Command1),然后编写如下代码:PrivateSubCommand1_Click()Dimn()AsIntegerDima,bAsIntegera=InputBox("Enterthe
最新回复
(
0
)