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
专升本
As scientists learn more about the causes of earthquakes, they become better able to predict them. First of all, they know that
As scientists learn more about the causes of earthquakes, they become better able to predict them. First of all, they know that
admin
2015-10-30
33
问题
As scientists learn more about the causes of earthquakes, they become better able to predict them. First of all, they know that quakes are likely to occur in areas where the tectonic plates(地层地壳板块)push against each other.
They study these areas closely, using different instruments. They measure the vibrations of the earth with seismographs(地震仪), which record on rolls of paper all movements, both large and small.
Scientists usually use the Richter scale(里希特震级仪)named after a famous seismologist(地震学家), for these measurements. When an earthquake measures over 4 ~ 5 on the Richter scale, it is strong enough to cause damage. Scientists have determined that an area is not likely to have a large earthquake when many small quakes have been occurring. When the small quakes stop, then pressure builds and a strong quake is more likely.
There are several other ways to predict earthquakes. Scientists can measure the tiny changes in the tilt(倾斜)of the land that happen before earthquakes occur. Increases in the amount of radon(氡), a substance found in deep wells, as well as a higher level of water in the wells, can also mean that an earthquake is likely to occur. In addition, scientists have found that some animals, like dogs, behave strangely before an earthquake, they become nervous and howl(号叫). Seismologists have correctly predicted several earthquakes. In 1975, they said that an earthquake would occur in Liaoning Province, China, one month, and then one hour, before it happened. In 1978, Russian scientists predicted an earthquake in the Altai Mountains six hours before it occurred. However, not all earthquakes are predictable, and a system for predicting is not yet perfected. Nothing on this earth is certain. Although people who live in California and Japan live with the possibility of a serious quake, perhaps the next strong earthquake will occur somewhere outside the "Ring of Fire".
According to the passage, a large earthquake is most likely to occur in an area______.
选项
A、where a series of minor vibrations of the earth have been occurring
B、that is within the "Ring of Fire" but does not see any vibration of the earth
C、where many small vibrations of the earth have been occurring and then a calm period follows
D、where tectonic plates fit into each other properly
答案
C
解析
第一段最后两句话“Scientists havedetermined that...then pressure builds and astrong quake is more likely.”与C选项吻合,故C正确。
转载请注明原文地址:https://kaotiyun.com/show/BAYC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
--Whichforeignlanguageareyoubetterat,EnglishorFrench?--IamsorryIknow______ofEnglishand______ofFrench.
Youngpeoplewhodrinkorusedrugsaremainlyinfluencedbyboththeirparentsandpeerpressure.Otherreasonstheytaket
Inordertolearnaforeignlanguagewell,itisnecessarytoovercomethefearofmakingmistakes.Iftheprimarygoal(目标)of
IntheUnitedStatesthemostpopularformoffolkdancingsincetheearlydayshasbeensquaredancing.Inearlytimes,whenme
OnthemorningofNovember18,1735,anearthquakeshookBoston,Massachusetts.JohnWinthrop,aprofessoratHarvardCollege,fe
Shoppingforclothesisnotthesameexperienceforamanasitisforawoman.Amangoesshoppingbecauseheneedssomething.
Icanhardly______thedifferencebetweenthesetwowords.
Americansareproudoftheirvarietyandindividuality,yettheyloveandrespectfewthingsmorethanauniform,whetheritis
Manypeoplearewonderingifitissafetotalkonthephonewhiledriving.Therehavebeenquiteafewaccidentswhiledrivers
随机试题
下列有关古罗马《国法大全》的说法哪些是正确的?()
如果我们已知中国1990年第四次人口普查时的城镇人口比重和2000年第五次人口普查时的城镇人口比重,当我们要预测2010年时的城市化水平时,采用以下哪种方式最方便?()。
请根据以下业务描述,判断填制《出境货物报检单》各项内容的正误,完成以下判断题(见报检单上标的题号)。陕西中电进出口有限公司(报检备案号;5100811252)与国外一家公司签订一批电子器件出口合同。该产品生产后存放于该公司仓库,于2004年4月间装
根据以下材料,回答下列题目:邓某的父亲在2003年1月因病去世,留有遗产:100平米的商品房一套,存款100万元。邓某还有两个哥哥和一个姐姐。邓某此时已经有房屋_套,价值80万元,现金10万元,还有冰箱、彩电等家用电器若十。2004年10月中旬,邓某和赵
以发起方式设立的股份有限公司,其公司章程草案须经发起人的()同意。
我国《民法通则》规定的代理种类包括()。
社会工作者和志愿者的区别主要体现在( )。
如图,正方形ABCD和四边形ACEF所在的平面互相垂直,CE⊥AC,EF∥AC,AB=√2,CE=EF=1.求二面角A—BE—D的大小.
以下属于西方绘画门类的是()。
Susan______indoingtheexperimentagainthoughshehadfailedmanytimes.
最新回复
(
0
)