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
70
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
ReadingPoemNopoemshouldeverbediscussedor"analyzed",untilithasbeenreadaloudbysomeone,teacherorstudent.Be
Smokingisconsidereddangeroustothehealth.Ourtobacco--seller,Mr.Johnson,therefore,alwaysaskshiscustomers,iftheya
Smokingisconsidereddangeroustothehealth.Ourtobacco--seller,Mr.Johnson,therefore,alwaysaskshiscustomers,iftheya
Smokingisconsidereddangeroustothehealth.Ourtobacco--seller,Mr.Johnson,therefore,alwaysaskshiscustomers,iftheya
A.thequakeitselfB.accuratepredictionC.damageofpropertyandlossoflivesD.apossibleearthquakeE.theunusualbehav
PlantGasScientistshavebeenstudyingnaturalsourcesofmethanefordecadesbuthadn’tregardedplantsasaproducer,not
PlantGasScientistshavebeenstudyingnaturalsourcesofmethanefordecadesbuthadn’tregardedplantsasaproducer,not
随机试题
关于热力学第一定律,下列说法有误的是()
男性,42岁,因左上腹饱胀感伴发热、齿龈出血1个月入院。体检发现,患者呈中度贫血貌,全身皮肤散在出血点,脾是巨脾。血常规WBC210×109/L,RBC248×1012/L,Hb70g/L,PLT50×109/L,骨髓象原粒细胞25%,中晚幼粒细胞
非全面调查包括
知觉自己有可能成为该疾病或危险因素的受害者,是导致健康相关行为改变的心理活动的哪个因素
不属于气机失调的病机变化是
影响企业竞争优势的持续时间,主要的关键因素有()。
2011年8月1日,某企业开始研究开发一项新技术,当月共发生研发支出800万元,其中,费用化的金额650万元,符合资本化条件的金额150万元。8月末,研发活动尚未完成。该企业2011年8月应计入当期利润总额的研发支出为()万元。
已知某公司当前资本结构如下:因生产发展,公司年初准备增加资金2500万元,现有两个筹资方案可供选择:甲方案为增加发行1000万股普通股,每股市价2.5元;乙方案为按面值发行每年年末付息、票面利率为10%的公司债券2500万元。假定股票与债券的发行费用均
小王根据某领导要求,要把一次会议中记录的代表发言编发一期会议简报。按照有关规定,小王可采取的正确做法有()。
论述“中体西用”思想的历史作用及其局限性。
最新回复
(
0
)