首页
登录
职称英语
[originaltext] Scientists who study the earth tell us that the continents an
[originaltext] Scientists who study the earth tell us that the continents an
游客
2024-03-07
43
管理
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、The continents and ocean floors move violently.
B、The earth is as permanent as it was.
C、The surface of our planet is always in motion.
D、The crust of the earth moves frequently.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3511891.html
相关试题推荐
[originaltext](23)WiththeInternetrevolutionusheringinnewmodesofco
[originaltext]Hereisaquestionforyou.Thecustomerisalwaysright.Rig
[originaltext]Moderator:Hello,ladiesandgentlemen.Itgivesmegreat
[originaltext]Moderator:Hello,ladiesandgentlemen.Itgivesmegreat
[originaltext]MedicalexpertssaymostAmericansdonotgetenoughsleep.T
[originaltext]MedicalexpertssaymostAmericansdonotgetenoughsleep.T
[originaltext]TheWorldHealthOrganizationsays57nationsinSouthernAfr
[originaltext]TheWorldHealthOrganizationsays57nationsinSouthernAfr
[originaltext]TheWorldHealthOrganizationsays57nationsinSouthernAfr
[originaltext]W:WhatdoyouthinkofTV?Ithinkitisafalsegod,adang
随机试题
DepressionInbed,youtossandturn,
HowtoPresentaSeminarPaperToinvolvetheirstuden
WhichofthefollowingcountriesorregionswhereAIDSisspreadingmuchfaster
Thepairofwords"buy"and"sell"are______A、gradableopposites.B、relational
在重载一个运算符时,如果其参数表中有一个参数,则说明该运算符是()A.一元成
患者因头痛、头晕20天,加重伴烦躁、频繁呕吐1天入院。人院体检:生命体征不平稳,
非特异性循环免疫复合物的检验技术中,最普遍应用的是A.SPA夹心ELISAB.人
《变电运维管理规定第22分册站用变运维细则》:油浸式站用变的上层油温不超过95℃
狂病痰火扰神证治疗方剂宜选A.滚痰丸 B.生铁落饮 C.清气化痰丸 D.顺
某商店的两件商品成本价相同,一件按成本价多25%出售,一件按成本价少13%出售,
最新回复
(
0
)