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
67
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.
All the following statements are TRUE except that ______ according to the passage.
选项
A、stronger materials will be developed to withstand serious earthquakes
B、seismic engineering has been greatly improved in the past years
C、it won’ t be long before earthquakes can be predicted accurately
D、something unpredictable may still happen beyond the expectations of the seismologist
答案
C
解析
可采取排除法。
转载请注明原文地址:https://kaotiyun.com/show/fuPd777K
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?
Besidesthefunctionsasavitalentertainmentmedium,whatelsecanpeopleuseaTVas?
SomepeopleusedtosaythatDadhadsomanychildrenthathecouldn’tkeeptrackofthem.Dadhimselfusedto【1】astoryabouto
SomepeopleusedtosaythatDadhadsomanychildrenthathecouldn’tkeeptrackofthem.Dadhimselfusedto【1】astoryabouto
Forachild,happinesshasamagicalnature.Iremembermakinghide-outsinnewly-cuthay,playingcopsandrobbersinthewoods
Forachild,happinesshasamagicalnature.Iremembermakinghide-outsinnewly-cuthay,playingcopsandrobbersinthewoods
Youhavereadanarticleinamagazinewhichstates,"Bylaw,cigaretteadvertisementsarestrictlyprohibitedonthemedia.Som
AnswerQuestions71to80byreferringtothecommentson4differentcarmodelsinthefollowingmagazinearticle.Answereach
AnswerQuestions71to80byreferringtothecommentson4differentcarmodelsinthefollowingmagazinearticle.Answereach
Couldthebadolddaysofeconomicdeclinebeabouttoreturn?SinceOPECagreedtosupply-cutsinMarch,thepriceofcrudeoil
随机试题
A.仰卧位B.颈仰卧位C.侧卧位D.俯卧位E.截石位颈部手术应采取
以下所列不同种类处方中,纸质为淡绿色的是
A.Na+内流B.Cl-内流C.Ca2+内流D.K+内流E.K+外流骨骼肌细胞动作电位降支形成的原因是
男性,58岁。慢性阻塞性肺疾病10余年,近1周咳喘加重,发绀明显,烦躁,血气分析:pH7.39,PaO240mmHg,PaCO270mmHg。此时若进行氧疗,最合适的氧疗方法是
女,24岁。发热4天,体温波动于38.2℃~39.5℃。化验血:Hb134g/L,WBC14.5×109/L,NO.85,胸部X线片提示左侧胸腔积液,胸水常规:有核细胞6000×106/L,多核0.89,胸水生化:PH6.9,LDH1400U/L,葡萄糖0
贷款人依法处置抵押物、质押物所得价款不足补偿抵押、质押贷款部分,由法院裁决书及抵(质)押物拍卖的《拍卖转让合同书》,该贷款属哪种不良贷款?()
下列属于商业银行公司贷款贷前调查内容的有()。
自我意识发展的第一个飞跃表现为()。
经济全球化的主要承担者和体现者是()。
IfoundLucy(lie)______onherbackonthesand.
最新回复
(
0
)