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
After the violent earthquake that shook Los Angeles in 1994, earthquake scientists had good news to report: The damage and death
After the violent earthquake that shook Los Angeles in 1994, earthquake scientists had good news to report: The damage and death
admin
2015-01-31
30
问题
After the violent earthquake that shook Los Angeles in 1994, earthquake scientists had good news to report: The damage and death toll(死亡人数)could have been much worse.
More than 60 people died in this earthquake. By comparison, an earthquake of similar intensity that shook America in 1988 claimed 25,000 victims.
Injuries and deaths were relatively less in Los Angeles because the quake occurred at 4:31 a.m. on a holiday, when traffic was light on the city’s highways. In addition, changes made to the construction codes in Los Angeles during the last 20 years have strengthened the city’ s buildings and highways, making them more resistant to quakes.
Despite the good news, civil engineers aren’t resting on their successes. Pinned to their drawing boards are blueprints(蓝图)for improved quake-resistant buildings. The new designs should offer even greater security to cities where earthquakes often take place.
In the past, making structures quake-resistant meant firm yet flexible materials, such as steel and wood, that bend without breaking. Later, people tried to lift a building off its foundation, and insert rubber and steel between the building and its foundation to reduce the impact of ground vibrations. The most recent designs give buildings brains as well as concrete and steel supports. Called smart buildings, the structures respond like living organisms to an earthquake’ s vibrations. When the ground shakes and the building tips forward, the computer would force the building to shift in the opposite direction.
The new smart structures could be very expensive to build. However, they would save many lives and would be less likely to be damaged during earthquakes.
The author’ s main purpose in writing the passage is to______.
选项
A、compare the consequences of the earthquakes that occurred in the U.S.
B、encourage civil engineers to make more extensive use of computers
C、outline the history of the development of quake-resistant building materials
D、report new developments in constructing quake-resistant buildings
答案
D
解析
主旨题。纵观短文可看出作者是通过描述发生在洛杉矶的地震来指出抗震技术的提高。选项A是说地震结果的比较,不是文章重点,选项B、C与原文表述不符,故选项D正确。
转载请注明原文地址:https://kaotiyun.com/show/n3q7777K
0
大学英语四级
相关试题推荐
TheArtofPublicSpeakingIfyouweretotape-recordoneofDavidLetterman’scomedyroutines,memorizeitwordforword,a
"Thetoyindustryhasalwaysreflectedadultculture,"saysChrisByrne,anAmericantoy-industryconsultant.Inthe1920sgirls
Thebenefitsofquittingsmoking—reducedriskofcancerandmanyotherhealthproblems—areknown.Butformillionsofsmokers,t
HappinessandSadnessHappinessandsadnessaretwomostbasicandfamiliarfeelingsforhumanbeings.Recently,peoplehave
QuickChangeinStrategyforaBooksellerInthemovieYou’veGotMail,TomHanksplayedtheaggressivebig-boxretailerJoe
Byimposingstrictrulesaboutalcohol,parentscanreducetheirkids’impulsestodrink,accordingtoanewstudy.【C1】_____
Byimposingstrictrulesaboutalcohol,parentscanreducetheirkids’impulsestodrink,accordingtoanewstudy.【C1】_____
A、Becauseshewasdeeplyimpressedbytheprofessor.B、Becauseshefoundthephysicsclassveryinteresting.C、Becauseshefelt
A、Apolicewoman.B、Anewsreporter.C、Aninspector.D、Agovernmentemployee.A推理判断题。女士首先对男士的被劫表示了同情,然后向男士详细询问了案件发生的经过。在对话结尾处,女士表
TheRedistributionofHope"HOPE"isoneofthemostoverusedwordsinpubliclife,uptherewith"change".Yetitmatterse
随机试题
患者,男性,71岁。糖尿病多年,尿糖控制不佳,最终患“慢性肾衰竭”,自诉疲乏、纳差、胸闷。体检:心率为94次/分,心律不齐,血压170/102mmHg,测血清钾为7.7mmoL/L,血肌酐为660μmoL/L。此时最有可能危及患者生命的情况是发生
Wearedelightedatthenews________ourdaughterisexpectingababy.
库欣反应引起枕骨大孔疝临床表现出
A.阿司匹林B.布洛芬C.吲哚美辛D.双氯芬酸钠E.对乙酰氨基酚结构中含有异丁基的药物是
A.自身免疫性溶血B.急性淋巴细胞白血病C.慢性粒细胞白血病D.多发性骨髓瘤E.MDS
A.吗啡B.泻药C.止泻药D.祛痰药E.肾上腺皮质激素
企业根据职工提供服务的收益对象进行职工薪酬分配时,可能涉及的会计科目有()。
下列关于理财法律关系的说法正确的是( )。Ⅰ.金融理财师应以自己的名义实施理财行为Ⅱ.法定委托需要具有明确的、合法的托付事项,并通过法定形式进行Ⅲ.代理关系强调委托人和受托人之间的关系Ⅳ.代理即指代理人在代理权限范围内,以被代理人的名义或自己的名
建立一个学生表ST,它由学号XH、姓名XM、所在系SD这3个属性组成,其中学号属性不能为空。在下列语句中,能实现该功能的正确语句是______。
__________.(同中国加强合作)isintheinterestsoftheUnitedStates.
最新回复
(
0
)