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.
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
Youreadanarticleinwhichtheauthorsays,"Iwouldliketoproposethatforsixtytoninetyminuteseacheveningrightafter
Therearetwobasicwaystoseegrowth:oneasaproduct,theotherasaprocess.Peoplehavegenerallyviewedpersonalgrowtha
Whowouldbemostinterestedintheadvancesmentionedinthetalk?
Someyoungmarriedcouplesarechoosingnottohavechildren,becausetheythinkthatchildrenbringthemmoremiserythanjoy;
SomepeopleusedtosaythatDadhadsomanychildrenthathecouldn’tkeeptrackofthem.Dadhimselfusedto【1】astoryabouto
Stopfighting.
Couldthebadolddaysofeconomicdeclinebeabouttoreturn?SinceOPECagreedtosupply-cutsinMarch,thepriceofcrudeoil
随机试题
下列哪次会议重新确立了解放思想、实事求是的思想路线()
尿液检查下列哪项对慢性肾功能衰竭的诊断最有价值
某台10kV笼型感应电动机的工作方式为负荷平稳连续工作制,额定功率800kW。额定转速2975r/min,电动机启动转矩倍数0.72,启动过程中的最大负荷转矩899N.m。请回答下列问题。若电动机采用铜芯交联聚乙烯绝缘电缆(YJV)供电,电缆沿墙穿钢管
《建设项目竣工环境保护验收管理办法》规定,违反本办法第十条规定,建设项目投入试生产超过3个月,建设单位未申请建设项目竣工环境保护验收或者延期验收的,由有审批权的环境保护行政主管部门依照《建设项目环境保护管理条例》的规定责令限期办理环境保护验收手续;逾期未办
基金公司的投资管理部门中,负责根据投资决策委员会制定的投资原则和计划制定投资组合的具体方案,向交易部下达投资指令的是()。
下列关于无意注意在实际教学中应用正确的是()
简述组织工作的步骤。
结合材料回答问题:材料1在那个风雨如晦的年代,为改变中华民族的命运,中国人民和无数仁人志士进行了千辛万苦的探索和不屈不挠的斗争。太平天国运动,戊戌变法,义和团运动,不甘屈服的中国人民一次次抗争,但又一次次失败。孙中山先生领导的辛亥革命,
公司中有多个部门和多名职员,每个职员只能属于一个部门,一个部门可以有多名职员。则实体部门和职员间的联系是
Wherehasthewomanbeen?
最新回复
(
0
)