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
A、Where the displacement along the fault is in the direction of the dip. B、Where the two sides of the fault slip horizontally pa
A、Where the displacement along the fault is in the direction of the dip. B、Where the two sides of the fault slip horizontally pa
admin
2022-11-27
75
问题
Now, you’ve been reading articles about the tremendous damage done to life and property by earthquakes. That’s why seismologists have been working so hard to develop methods of earthquake prediction. We can now predict earthquake fairly well, but the predictions only locate potential areas of danger. They don’t predict the specific time and location at which an earthquake is likely to occur. Today I want to introduce to you three prediction models that have been developed. The first prediction model looks along earthquake faults, those cracks in the earth’s crust, to find places where the fault has shown little or no earthquake activity for a long time. This theory hypothesizes that such places are due for a major shock. The second model relies on phenomena— like ground tilt. Using long tubes containing water, observers noted that ground tilt tended to occur before major earthquakes. That led them to correctly predict the big Haicheng quake of 1975— the first successful earthquake prediction scientists have ever made. A million people were evacuated from that Chinese city before the earthquake struck. Unfortunately, this method hasn’t worked consistently, so we can’t say it’s been perfected. The third model is based on the theory that major earthquakes closely follow a series of minor ones. Starting with the measurements and timing of the smaller quakes— a complex formula calculates the “times of increased probability” for much larger quakes. Right now, this method, like the first method, cannot predict specific times and places, but that may change as it is further developed. For the moment, none of these models can predict with reasonable levels of confidence.
16. What does the speaker say about the earthquake prediction?
17. What places are more likely to have a major earthquake?
18. Which prediction model helped scientists predict the big Haicheng quake of 1975?
19. What is the third prediction model based on?
选项
A、Where the displacement along the fault is in the direction of the dip.
B、Where the two sides of the fault slip horizontally past each other.
C、Where the earthquake fault has shown no earthquake activity for a long time.
D、Where extreme weather usually occurs.
答案
C
解析
短文指出,断裂带在很长时间内几乎没有地震活动的地方,很可能发生大地震。
转载请注明原文地址:https://kaotiyun.com/show/OtjJ777K
0
大学英语四级
相关试题推荐
某露天采石场位于甲省乙市,成立于2006年,公司主营砂岩露天开采加工及销售,生产产品主要为建筑用砂石料。采石场采用自上而下的分层顺序开采,单层高度6m,采用潜孔钻凿岩,2号岩石乳化炸药进行爆破。目前该矿共有2个分层处于开采中,分别为1号分层和2号分层。
世界上最大的内陆国家是()。
Paddyisinterestedinthesportsprogrammebecause
PASSAGETWOWhatdothemeasuresthatcareproviderscouldtaketoassuagepeople’smisgivingsaboutmedicalAIhaveincommon?
Working-classfamiliesintheUnitedStatesareusuallynuclear,andmanystudiesindicatethatworking-classcouplesmarryfor
A、Gettoworkontime.B、Makethemanandothershappy.C、Beatworkanhourearlier.D、Movetoanearerapartment.A对话结尾女士问男士能不
A、Sheistooconcernedaboutmoney.B、Sheistooweight-conscious.C、Sheistoopickyaboutfood.D、Sheistooeagertoplease.
A、Prepareastudyguide.B、Consulthisadvisors.C、Gooverhisnotesregularly.D、Takestress-reliefsessions.A细节推断题。对话开头,男士抱怨这
A、Thereductionofhighwaytollfeesonpassengercars.B、Thedecreaseinthenumberofprivatecars.C、Passengers’newholiday
A、Beautifulflowersintheforest.B、Brightcolorsandcutecharacters.C、Interestingadventuresinthewood.D、Themagicworld
随机试题
中央银行在公开市场上卖出政府债券是企图()。
A.纤维素性胸膜炎B.大量胸腔积液C.肺脓肿D.肺气肿E.支气管阻塞性肺炎双侧语音震颤减弱的是()
A.控制通气B.辅助/控制通气C.间歇指令通气D.呼吸末正压通气E.压力支持通气由病人控制主要呼吸参数,可降低自主呼吸的呼吸做功的是
A.pH下降,HCO3—下降B.pH升高,PaCO2升高,HCO3—下降C.pH下降,PaCO2升高D.pH升高,PaCO2下降,HCO3—下降E.pH升高,HCO3—升高,BE升高呼吸性碱中毒可出现()
甲学校向乙公司发出要约,要定作一批桌椅,要约中表明了桌椅的样式,甲在要约中提出:“双方发生争议,提交北京市仲裁委员会仲裁。”乙公司回信接受甲公司的一切条件,但在回信中指出,双方发生争议,任何一方有权向法院起诉,根据已知条件,判断下列选项:()
建设单位应当在拆除工程施工15日前,将()报送建设工程所在地的县级以上地方人民政府建设行政主管部门或者其他有关部门备案。
下列不属于申领建筑工程施工许可证的条件是()。[2006年考题]
在统一币种方面,不同币种的价格之间的换算,应采用()的汇率。
2012年1月14日下午4时,中国台湾地区领导人选举投票结束。开票结果显示,中国国民党候选人()获胜。
在执行数据库访问命令之前,数据库管理系统DBMS首先需要执行下面哪一个(些)检查?Ⅰ.语法检查Ⅱ.用户存取权限检查Ⅲ.语义检查
最新回复
(
0
)