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
The volcanic eruptions in Iceland, seismic (地震的) devastation in Samoa, Sumatra, Haiti and Chile. All within six months. The publ
The volcanic eruptions in Iceland, seismic (地震的) devastation in Samoa, Sumatra, Haiti and Chile. All within six months. The publ
admin
2012-04-09
52
问题
The volcanic eruptions in Iceland, seismic (地震的) devastation in Samoa, Sumatra, Haiti and Chile. All within six months. The public perception could easily be that we are undergoing a peak in global seismic activity, but the science suggests otherwise. During some periods, purely by chance, clusters of seismic events occur close together, in the same way that grains of sand bunch together if scattered on a smooth surface. But the number of events during the past year is not even above average. According to records dating back to 1900, we expect about 17 major earthquakes (between 7. 0 and 7. 9 magnitude) and one great earthquake (8. 0 or above) in any given year. Last year one surpassed 8.0 and 16 between 7.0 and 7.9—an almost perfectly average year. Volcano activity is also well within the normal range.
What has changed dramatically is the numbers of people being killed. As the world’s population continues to grow exponentially (增长迅猛地) , people in the world’s poorest regions are being forced to live in more and more marginal places. Whereas once a major tremor (震动) or eruption would kill the unlucky few living in the vicinity, now whole cities are built along fault lines. Between 1980 and 1989 almost 59 000 people died in earthquakes. By the next decade, this had grown to 115 000 people and between 2000 and 2010 further increased to 689 000. Just this year 223 142 have died.
"I expect that in my lifetime I’ll see an earthquake kill a million people. Many seismologists believe this will happen," said Professor John McCloskey, a geophysicist at the University of Ulster. Dr. Christopher Kilburn, a geophysical hazards specialist at University College London sees a comparable situation for volcanoes. "Cities in these areas have grown. The chances are that in the future something will happen that will affect tens of thousands of people," he said.
With advances in computer simulations, and a wealth of data from more than 8 000 seismological stations, scientists are better placed than ever to predict where seismic events will strike next. Many are working with aid agencies to identify the places most at risk and attempt to make changes to their infrastructure.
Several locations are believed to be particularly at risk. Earth scientists expect a great earthquake to strike in Sumatra. And the one that hit Padang, in September last year killing more than 1 000 people was not it—on the contrary it may have only served to make the next massive earthquake more likely. The last major shock happened more than 200 years ago and the stresses are probably larger now than they were then. Istanbul is another worry. Scientists have estimated a 60 per cent chance of a massive earthquake within 30 years. Tehran and a large stretch of North India falling on the Himalayan front have also been identified as red-alert zones by seismologists.
What do earth scientists predict about the earthquake in Sumatra?
选项
A、The Padang earthquake may have given rise to a major earthquake.
B、It will witness a massive earthquake in no more than 200 years.
C、Fewer people will die with the relief efforts and experiences from Padang.
D、It will eventually lead to the devastation and restoration of the country.
答案
A
解析
推理判断题。根据定位句可知,科学家们预测苏门答腊会发生一次重大地震,但并非已经发生的巴东地震,相反巴东地震可能会引发下一次重大地震。因此答案为A)。
转载请注明原文地址:https://kaotiyun.com/show/g9E7777K
0
大学英语六级
相关试题推荐
Forwelloveracentury,onestreetinNewYorkCityhasbeenknownfortheheartoftheAmericantheater.The【S1】__
Tobesuccessfulinajob【B1】______,youshould【B2】______certainpersonalandprofessionalqualities.Youneedtocreateagoo
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrolsbehavior.Ittellsplantswhento【C1】______flowers
A、Hehasjustbeendead.B、Hewenthomeafterchurch.C、Hehasnotfeltwelllately.D、Hewillattendchurchtomorrow.A综合理解题。对
Peopledonotanalyzeeveryproblemtheymeet.Sometimestheytrytoremembera【B1】______fromthelasttimetheyhadasimilar
Forthreedecadeswe’veheardendlesslyaboutthevirtuesofaerobic(increasingoxygenconsumption)exercise.Medicalauthorities
TheEnglish,asarace,areverydifferentfromallothernationalities,includingtheirclosetneighbors,theFrench,Belgians,
______(我一点都不知道)theamountofplanningortheamountofmoneythatwentintotheweddings.
Somethingweirdishappeningintheoncemarginalworldofenvironmentalism.Thegreencauseisnolongerth9preserveofwoolly
Anaccidentaldiscoveryhasbroughtseismologists(地震学家)onestepclosertobeingabletopredictearthquakes.Aspartofanunre
随机试题
销售日报表属于()
立克次体感染人类的主要传播途径是()。
下列各项中,应计提固定资产折旧的是()
规划的功能有()
以下属于商业银行面临的战略风险的有()。
甲发短信问邻居乙,可否砍伐乙后院的一棵大树。乙本想回复“不行”,但不小心漏写了“不”,发成“行”。甲便砍伐了乙的树。甲的行为()
设A为三阶矩阵,Aα1=iαi(i=1,2,3),求A.
下面叙述中正确的是()。
有如下程序:#includeUsingnamespacestd;ClassAmount{intmount;public;Amount(intn=0):amount(n){}
【61】Itisawell-knownfactthatthereareconstantconflictsamongdifferentgroupsofpeople,andthatpeopletendtoblamet
最新回复
(
0
)