谁有英语阅读题或完形填空?关于地震的!RT.关于地震的.快.如果找不到就给点关于地震的词汇之类吧.1
谁有英语阅读题或完形填空?关于地震的!
RT.关于地震的.快.如果找不到就给点关于地震的词汇之类吧.1
谁有英语阅读题或完形填空?关于地震的!RT.关于地震的.快.如果找不到就给点关于地震的词汇之类吧.1
谁有英语阅读题或完形填空?关于地震的!
RT.关于地震的.快.如果找不到就给点关于地震的词汇之类吧.1
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescientistshadgoodnewstoreport;Thedamageanddeathtoll(死亡人数)couldhavebeenmuchworse.
Morethan60peoplediedinthisearthquake.Bycomparison,anearthquakeofsimilarintensitythatshookAmericain1988claimed25,000victims:
InjuriesanddeathswererelativelylessinLosAngelesbecausethequakeoccurredat4:31a.m.onaholiday,whentrafficwaslightonthecity'shighways.Inaddition,changesmadetotheconstructioncodesinLosAngelesduringthelast20yearshavestrengthenedthecity'sbuildingsandhighways,makingthemmoreresistanttoquakes.
Despitethegoodnews,civilengineersaren'trestingontheirsuccesses.Pinnedtotheirdrawingboardsareblueprints(蓝图的)forimprovedquake-resistantbuildings.Thenewdesignsshouldofferevengreatersecuritytocitieswhereearthquakesoftentakeplace.
Inthepast,makingstructuresquakeresistantmeantfirmyetflexiblematerials,suchassteelandwood,thatbendwithoutbreaking.Later,peopletriedtoliftabuildingoffitsfoundation,andinsertrubberandsteelbetweenthebuildinganditsfoundationtoreducetheimpactofgroundvibrations.Themostrecentdesignsgivebuildingsbrainsaswellasconcreteandsteelsupports,calledsmartbuildings,thestructuresrespondlikelivingorganismstoanearthquake'svibrations.Whenthegroundshakesandthebuildingtipsforward,thecomputerwouldforcethebuildingtoshiftintheoppositedirection.
Thenewsmartstructurescouldbeveryexpensivetobuild.However,theywouldsavemanylivesandwouldbelesslikelytobedamagedduringearthquakes.
1.OnereasonwhythelossoflivesintheLosAngelesearthquakewascomparativelylowisthat_______?
A)newcomputershadbeeninstalledinthebuildings
B)itoccurredintheresidentialareasratherthanonthehighways
C)largenumbersofLosAngelesresidentshadgoneforaholiday
D)improvementshadbeenmadeintheconstructionofbuildingsandhighways
2.Thefunctionofthecomputermentionedinthepassageisto_______.
A)counterbalanceanearthquake'sactiononthebuilding
B)predictthecomingofanearthquakewithaccuracy
C)helpstrengthenthefoundationofthebuilding
D)measuretheimpactofanearthquake'svibrations
3.Thesmartbuildingsdiscussedinthepassage_______.
A)wouldcauseseriousfinancialproblems
B)wouldbeworthwhilethoughcostly
C)wouldincreasethecomplexityofarchitecturaldesign
D)canreducethegroundvibrationscausedbyearthquakes
4.Itcanbeinferredfromthepassagethatinminimizingthedamagecausedbyearthquakesattentionshouldbefocusedon_______.
A)theincreasinguseofrubberandsteelincapitalconstruction
B)thedevelopmentofflexiblebuildingmaterials
C)thereductionoftheimpactofgroundvibrations
D)earlyforecastsofearthquakes
5.Theauthor'smainpurposeinwritingthepassageisto_______.
A)comparetheconsequencesoftheearthquakesthatoccurredintheU.S.
B)encouragecivilengineerstomakemoreextensiveuseofcomputers.
C)outlinethehistoryofthedevelopmentofquake-resistantbuildingmaterials.