首页
登录
职称英语
[originaltext] A tsunami is a series of huge waves that can cause great dev
[originaltext] A tsunami is a series of huge waves that can cause great dev
游客
2023-09-03
48
管理
问题
A tsunami is a series of huge waves that can cause great devastation and loss of life when they strike a coast. The word tsunami comes from the Japanese word meaning "harbor wave". Tsunamis are sometimes incorrectly called "tidal waves". Actually tsunamis are not caused by the tides for the gravitational force of the moon on the sea. Regular waves are caused by the wind.
(30) Tsunamis are caused by an underwater earthquake, a volcanic eruption, a sub-marine rockslide, or, more rarely, by an asteroid or meteoroid crashing into in the water from space. (31) Most tsunamis are caused by underwater earthquakes, but not all underwater earthquakes cause tsunamis. An earthquake has to be over about magnitude 6.75 on the Richter scale for it to cause a tsunami. About 90 percent of all tsunamis occur in the Pacific Ocean.
Many tsunamis could be detected before they hit land, and the loss of life could be minimized, with the use of modern technology. If you see the water recede quickly and unexpectedly from a beach (this is called drawback), run toward higher ground or inland, there may be a tsunami coming. Also, if you are on the coast and there is an earthquake, it may have caused a tsunami, so run toward higher ground or inland. Some beaches have tsunami warning sirens, do not ignore them. The first wave in a tsunami is often not the largest; if you experience one abnormally-huge wave, go inland quickly, even bigger waves could be coming soon.
(32)After the huge volume of water has moved, the resulting wave is very long but not very tall (roughly 3 feet tall). The wave spreads across the sea in all directions; it can travel great distances from the source at tremendous speeds.
选项
A、The first wave is often the largest.
B、The wave following large volume of water is usually not very long but very tall.
C、The wave of tsunamis can spread across the sea in all directions.
D、The wave of tsunamis usually travels at a lower speed at the beginning.
答案
C
解析
讲话人最后提到海啸的波浪向四面八方绵延整个海域,故选C项。
转载请注明原文地址:http://tihaiku.com/zcyy/2981279.html
相关试题推荐
[originaltext]W:Areyoureallygoingtoquityourjob?M:Well...I’mnotsure.
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactu
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactu
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactu
[originaltext]Today,ChineseAmericansmakeuplessthan1%oftheU.S.pop
[originaltext]W:Sinceit’stherushhour,let’stakethesubway.M:OK.It’sn
[originaltext]W:Sinceit’stherushhour,let’stakethesubway.M:OK.It’sn
随机试题
[originaltext]DearStudents,Timeflieswhenyou’rehavingfun.Enrolmenti
LifesaverHeroine—FlorenceNightingale"Theultimate
Itseemsthatthepresidentandthepremierlikeeachotherinmanyways,andon
Ishouldlikethismatter(settle)______immediately.settled我希望此事立即得到解决.本句考查过去分
最早的金属期货交易诞生于()。A、德国B、法国C、英国D、美国C最早的金属期货交易诞生于英国1876年成立的伦敦金属交易所(LME),开金属期货
财产保险是保险人对财产或其有关利益,在发生保险责任范围内的灾害事故所遭受的经济损
创新层挂牌公司申请在北京证券交易所向不特定合格投资者公开发行股票的条件不包括(
属氨基苷类的药物是A.阿普唑仑B.环丙沙星C.妥布霉素D.利巴韦林E.阿奇霉素
员工在试用期的工资不得低于本饭店相同岗位最低档工资或者劳动合同约定工资的( )
2009年12月召开的中央经济工作会议提出,2010年经济工作的总体要求是:全面
最新回复
(
0
)