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
2010-01-07
78
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 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 tremor is mild or a killer. Earthquake formation can be triggered by many factors, says Hiroo Kanamori, a seismologist 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 tremor, 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
从第一段最后一句可以看出。
转载请注明原文地址:https://www.kaotiyun.com/show/ruPd777K
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
Besidesthefunctionsasavitalentertainmentmedium,whatelsecanpeopleuseaTVas?
Therearetwobasicwaystoseegrowth:oneasaproduct,theotherasaprocess.Peoplehavegenerallyviewedpersonalgrowtha
Whowouldbemostinterestedintheadvancesmentionedinthetalk?
SomepeopleusedtosaythatDadhadsomanychildrenthathecouldn’tkeeptrackofthem.Dadhimselfusedto【1】astoryabouto
SomepeopleusedtosaythatDadhadsomanychildrenthathecouldn’tkeeptrackofthem.Dadhimselfusedto【1】astoryabouto
Doyouagreeordisagreewiththefollowingstatement?Television,newspaper,magazines,andothermediapaytoomuchattention
Couldthebadolddaysofeconomicdeclinebeabouttoreturn?SinceOPECagreedtosupply-cutsinMarch,thepriceofcrudeoil
Couldthebadolddaysofeconomicdeclinebeabouttoreturn?SinceOPECagreedtosupply-cutsinMarch,thepriceofcrudeoil
Couldthebadolddaysofeconomicdeclinebeabouttoreturn?SinceOPECagreedtosupply-cutsinMarch,thepriceofcrudeoil
随机试题
国际市场营销学的特点不包括()
全国人大常委会修订通过的《中华人民共和国药品管理法》规定,在销售前或者进口时,必须经过指定的药品检验机构检验合格才能销售或者进口的药品是
一护士,业务能力高,热情似火,但是脾气暴躁,经常与同事发生争吵,请问发生争吵的原因是
关于我国土地所有权中的交易禁止性,下列说法不正确的是()。
下列哪种塑料属于难燃材料?[2007年第009题]
(2006)学校教室的照度标准值是()。
在优抚医院和光荣院中,有时会出现对服务对象的隐蔽性疏于照顾的现象。这种隐蔽性疏于照顾现象包括()。
以下哪一项是VisualBasic合法的数组元素()。
A、 B、 C、 C此句意为:我父亲是个教师。关键词是“teacher”,所以C为答案。
A、Itwillinspirepeopletokeepstriving.B、Itwillboostthesocialeconomy.C、Itwillexhaustanddisappointpeople.D、Itwil
最新回复
(
0
)