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
Humans are forever forgetting that they can’t control nature. Exactly 20 years ago, a Time magazine cover story announced that “
Humans are forever forgetting that they can’t control nature. Exactly 20 years ago, a Time magazine cover story announced that “
admin
2010-06-30
59
问题
Humans are forever forgetting that they can’t control nature. Exactly 20 years ago, a Time magazine cover story announced that “scientists are on the verge of being able to predict the time , place and even the size of earthquakes.” The people of quake-ravaged Kobe (神户)learned last week how wrong that assertion was.
None of the methods conceived two decades ago has yet to discover a uniform warning signal that preceded all quakes, let alone any sign that would tell whether the coming temblor (震动) is mild or a killer. Earthquake formation can be triggered by many factors, says Hiroo Kanamori, formation can be triggered by many factors, says Hiroo Kanamori, a seismologist (地震学家)at the California Institute of Technology, So, finding one all - purpose warning sign is impossible. One reason: Quakes start deep in the earth, so scientists can’t study them directly . If a quake precursor were found, it would still be impossible to warn humans in advance of all dangerous quakes, Places like Japan and California are riddled with hundreds, if not thousands, of minor faults. Prediction would be less important if scientists could easily build structures to withstand tremors, While seismic engineering has improved dramatically in the past 10 to 15 years, every new quake reveals unexpected weaknesses in “quake – resistant” structures, says Terry Tullis, a geophysicist at Brown University. In Kobe, for example, a highway that opened only last year was damaged. In the Northridge earthquake, on the other hand, well-built structures generally did not collapse.
A recent report in science adds yet more anxiety about life on the faulty lines. Researchers ran computer simulations to see how quake-resistant buildings would fare in a moderate- size temblor, taking into account that much of a quakes energy travels in a large “pulse” of focused shaking. The results: Both steel-frame buildings and buildings that sit on insulating rubber pads suffered severe damage.
More research will help experts design stronger structures and possibly find quake precursors. But it is still a certainty that the next earthquakes will prove once again that every fault cannot be monitored and every highway cannot be completely quake - proofed.
From what the author said in Para. 1, it can be inferred that.
选项
A、scientists can never be able to predict the coming of earthquakes.
B、the existing power on predicting earthquakes is somewhat exaggerated.
C、quite a lot of scientific assertions are groundless.
D、earthquake predictions are beyond the reach of scientists.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/IOPd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
WhichofthefollowingistheacceptabletablemannerinBritain?
WhatmemorandumdidPresidentWilliamJ.Clintonissue?
Thefollowingpassageisdividedintothreesections.Youareaskedtofindoutinwhichsectionsthe10statementsarediscusse
Whatdoesthespeakermainlydiscuss?
RecentsurveysshowthatJapaneseyouthhavebecomea"MeGeneration"thatrejectstraditionalvalues."Around1980manyJap
DaffodilsbloomandchocolateeggsmeltasthelongEasterweekenddrawsnear.Alongsidesuchpleasuresisanother,equallyseas
WhichofthefollowingstatementsaboutthetelephoneofthefutureisNOTtrue?
DaffodilsbloomandchocolateeggsmeltasthelongEasterweekenddrawsnear.Alongsidesuchpleasuresisanother,equallyseas
WhichofthefollowingstatementsaboutthetelephoneofthefutureisNOTtrue?
Whatisthetelephonecallabout?
随机试题
ModernmusicWhyitispopularforits【A6】________andrhythmicbeat.ItsoriginsCountrymusicfeatures【A7】_____
落叶阔叶林的分布区域是()
2004年7月颁布的《国务院关于投资体制改革的决定》,把外商投资的审批制改为()。
对滚动轴承的磨损或损伤的诊断最好采用()。
市场利率走低时,以下判断正确的是()。
基本证据是指能用以______的重要证据。
基础教育课程改革的指导思想是()。
如果交换机的总带宽为14.4Gbps,它具有12个百兆的全双工端口,则其千兆的全双工端口数量最多为()个。
下列关于RAID的描述中,错误的是()。
Althoughnotidentical,theterms"collegeanduniversity"areoftenusedinterchangeablyintheUnitedStates.Thereisnolegal
最新回复
(
0
)