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
One pertinent question in the wake of the earthquake near Aceh and the tsunami it generated is how much notice of an approaching
One pertinent question in the wake of the earthquake near Aceh and the tsunami it generated is how much notice of an approaching
admin
2019-08-17
32
问题
One pertinent question in the wake of the earthquake near Aceh and the tsunami it generated is how much notice of an approaching wave can be given to vulnerable people without the risk of crying "wolf" too often. Earthquakes themselves are unpredictable, and likely to remain so. But detecting them when they happen is a routine technology. That was not the problem in this case, which was observed by monitoring stations all over the world. Unfortunately for the forecasters, although any powerful submarine earthquake brings the risk of a dangerous tsunami, not all such earthquakes actually result in a big wave, and false alarms cost money and breed cynicism.
On top of that, most " tsunamigenic" earthquakes, which are caused when the processes of plate tectonics force heavy, oceanic crustal rock below lighter, continental rock to create a deep trench at the bottom of the sea, occur in the Pacific, which is almost surrounded by such trenches. In the Indian Ocean, deep trenches are confined to the southern coast of Indonesia, and tsunamis are rare. Since most of the countries affected by this tsunami are poor, or middle-income at best, and monitoring costs money, this might suggest that a fatalistic approach to the question is reasonable. But American and Japanese experience suggests that effective monitoring need not be that expensive.
These two countries have networks of seabed pressure—detectors that can monitor tsunamis and indicate whether and where evacuation is necessary—data they share with their Pacific neighbors. A system of seven detectors, run from Hawaii, cost about $ 18 million to develop, and the experience gained doing so means a similar system might now be had for as little as $ 2 million. So, politicians in Southeast Asia and Australia are proposing one for the Indian Ocean.
Detecting tsunamis directly, rather than relying on earthquake monitors, is important for another reason, too. Not all tsunamis are caused by earthquakes. Some of the worst, such as a 15-meter-high monster that killed more than 2 , 000 people in New Guinea in 1998, are the result of submarine landslides(though these can themselves be triggered by earthquakes, as was the case in New Guinea). Indeed, a few years ago it was suggested that a landslide in an unstable part of La Palma, one of the Canary Islands, might cause a tsunami that would devastate the east coast of America.
Even if you have an effective detection system, though, it is useless if you cannot evacuate a threatened area. Here, speed is of the essence. Computer modeling can help show which areas are likely to be safest, but common sense is often the best guide—run like wind, away from the sea. Evacuation warnings, too, should be easy to give as long as people are awake. Radios are ubiquitous, even in most poor places. It is just a matter of having systems in place to tell the radio stations to tell people to run. The problem was that no one did.
When preparing for forthcoming natural disasters, humans lose the battle when
选项
A、some inexpensive but handy resources are not made use of.
B、old facilities are not updated in a timely manner.
C、people are in bed when the warnings are issued.
D、radio services are not available in many areas.
答案
A
解析
推断题。题目问的是“为即将到来的自然灾害做准备,人类何时会失败?”。由文章最后一段第五、六句“Radios are ubiquitous,even in most poor places. It is just a matter of having systems in place to tell the radio stations to tell people to run.”可知:即使在大多数贫困地区,广播也是无处不在。这仅是要求准备一个系统能够让电台及时通知人们撤离,但问题是没人做。这与A项“花费不昂贵且方便的资源没被利用”意义一致。故选A。
转载请注明原文地址:https://jikaoti.com/ti/LDIsFFFM
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
Answerquestionsbyreferringtothefollowinggames.Whichgame...ALikeyourmotorcyclegamesbig,bold,andbeautifu
Themid-19thcenturytimetravelerswouldnotbesurprisedbytoday’sInternetbecause______Theauthorseemstothinkthat____
Theauthorpointsoutatthebeginningthat______.Thepassageprovidesinformationforansweringallofthefollowingquestion
Accordingtothepassage,whatdistinguishesmanypresent-daytheatersfromthosebuiltpriortothenineteenthcentury?Whywa
Answerquestionsbyreferringtothecommentsontheeconomyofthreedifferentcountries/regioninthefollowingmagazineartic
Whydidthe1906SanFranciscoearthquakehelpgivebirthtomodernearthquakescience?Whatisthesignificanceofplatetecto
Weunderstandfromthepassagethatmosteighteenth-centurysculpturewas______.BecauseJohnsonwasverystrongphysicallyhe
InpartsofBrazil’spoornortheast,snakesandparrotsareonsalebytheroadsideforafewreais.InBrazil,aselsewherein
InpartsofBrazil’spoornortheast,snakesandparrotsareonsalebytheroadsideforafewreais.InBrazil,aselsewherein
InpartsofBrazil’spoornortheast,snakesandparrotsareonsalebytheroadsideforafewreais.InBrazil,aselsewherein
随机试题
VPN的设计应该遵循以下原则:()、()、VPN管理等。
牛血红蛋白尿病的临床特征是贫血、血红蛋白尿和()。
分布于上肢内侧前缘的经脉是
下列不属于宪法基本原则的是:
年度终了,企业应将全年的净亏损转入“利润分配”账户的借方。()
张某于1998年将自己所购买的商品房租给李某,租期1年,租金一次付清,1998年 5月份张某将房子卖给丁某,则( )。
近期六年级邓同学学习数学十分刻苦,可考试成绩还是不及格。张老师对他很了解,知道他基础差,学习已尽全力,若是这次让他不及格,会对他打击很大;若是让他及格,也许会给他一点鼓励,他可能会继续努力,但这样做却违背了考试评价的公正原则。张老师思量再三,难以决断。此时
幼儿在识别“方”“万”和“日”“月”等形近符号时出现混淆,这是由()所致。
现代市场体系的特征是()。
威客是thekey0fwisdom的缩写,译为“智慧的钥匙”,是指通过互联网把自己的智慧、知识、能力、经验转化成实际收入的人,威客在互联网上通过解决科学、技术、工作、生活、学习中的问题获得相应的收益,从而让知识、智慧、经验、技能体现经济价值的方式和行
最新回复
(
0
)