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、Places at the heart of continents. B、Places where continents meet. C、Places where the rock is not stable. D、Places near the c
A、Places at the heart of continents. B、Places where continents meet. C、Places where the rock is not stable. D、Places near the c
admin
2022-11-11
34
问题
Scientists who study the earth tell us that the continents and ocean floors are always moving. Sometimes, this movement is violent and might result in great destruction. Today, we examine the process that causes earthquakes. Scientists now know that the surface of the earth is not as permanent as it had been thought. Scientists explain that the surface of our planet is always in motion. Continents move about the earth like huge ships at sea. They float on pieces of the earth’s outer skin, or crust. Only since the 1960s have scientists begun to understand that the earth is a great, living structure. Some experts say this new understanding is one of the most important revolutions in scientific thought. The revolution is based on the work of scientists who study the movement of the continents—a process called plate tectonics (构造学). Earthquakes are a result of that process. Plate tectonics is the area of science that explains why the surface of the earth changes and how those changes cause earthquakes. Tectonic plates can cause earthquakes as they move. Modern instruments show that about 90% of all earthquakes take place along a few lines in several places around the earth. These lines follow underwater mountains, where hot liquid rock flows up from deep inside the planet. Other earthquakes take place at the edges of continents. Pressure increases as two plates move against each other. When this happens, one plate moves past the other, suddenly causing the earth’s surface to split. Earthquakes are among the most frightening events that nature can produce. At times like these, we remember that the ground is not as solid and unchanging as people might like to think.
Questions 13 to 15 are based on the passage you have just heard.
13. What may lead to earthquakes according to the passage?
14. What do the experts say about this new understanding?
15. Where do earthquakes likely happen?
选项
A、Places at the heart of continents.
B、Places where continents meet.
C、Places where the rock is not stable.
D、Places near the coastlines.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/iHR7777K
0
大学英语六级
相关试题推荐
A、Itrequirestoomuchtravelingtodifferentcities.B、Itlimitsinteractionamongstudents.C、Itwillincreaseclasssize.D、I
A、Theyaretargetingatyoungpeople.B、Theycanleadtoeatingdisorders.C、Theycancuresomeskinproblems.D、Theyarepersua
A、Walkingaroundtheaudience.B、Smilingwhileexplainingthenotions.C、Tellingsomejokesduringthespeech.D、Sharingsomepe
A、Itmakesusmorelonely.B、Itmakesusimpolite.C、Itplaysimportantrolesinourlives.D、Ithasbecomeadistraction.D
A、Itsblackfurthatisrarelyseen.B、Thewhitecoatitwasbornwith.C、Thespecialpowerithas.D、People’shighregardfori
A、Lossoftheforests.B、LossofitshabitatC、Human’slimitlesshunting.D、Limitedfoodresources.B录音提到,对于现存的熊类而言,最大的威胁是它们栖息地的
A、Theyareauselesstoolformanagerstochangeemployeebehavior.B、Theyprovetobeagoodmeansformanagerstogiveinstruc
A、Theymayknownothingabouttheworld.B、Theymayhavelittleholidayspirit.C、Theymaybeextremelyinterestedintravelling
A、FreeWiFiforworkplaces.B、Whiteboardareasforbrainstorming.C、Mobileappliancesforworkers.D、Small-scalemeetingspacer
A、Averagebodytypeisperfectforsports.B、Everybodyisbornwithacertainathleticgift.C、Highlyspecializedbodiesfitint
随机试题
大面积深度烧伤合并急性肾功能不全患者出现大面积创面溶痂、感染并有脓毒症征象,此时宜采取的创面处理措施是
患者,女,35岁。闭经3年,内分泌检查血FSH55U/L。诊断为()
行政机关实施行政许可,不得向申请人提出()等不正当要求。
施工单位应当书面明确本单位的项目负责人,代表本单位组织实施项目施工生产。下列属于项目负责人对项目安全生产工作的职责的是()。
证券评级机构在债券评级过程中主要依据下面哪几个因素()
某化妆品厂甲是增值税一般纳税人,6月发生下列业务:(1)外购化工材料A,税控发票注明价款10000元,增值税1700元。(2)外购化工材料B,税控发票注明价款20000元,增值税3400元。(3)将AB材料验收后交运输公司运送到乙化妆品制造厂(一般纳税人)
第四次咨询:心理咨询师:我们上一次制定了咨询目.标和方案,我要运用合理情绪疗法解决您的问题。合理情绪疗法认为引起人们情绪困扰的不是外界发生的事情,而是人们对事件的态度、看法……进而改变情绪,ABCDE论是合理情绪疗法的核心理论,其中A是……B
一个UNIX/Linux文件,如果一个盘块的大小为1KB,每个盘块占4B,那么,若进程欲访问偏移为263168B处的数据,需经过几次间接寻址?
Although the bulk of industry resources and energies have focused on developing the fastest(11)or slickest(12), more and more mi
CyberCafe(网吧)computercentersarefoundinmanycitiesaroundtheworld.Now,afewAmericanhighschoolsare【B1】______thesece
最新回复
(
0
)