新职业英语EnglishforCivilEngineering
Warming-upReadingAListeningSpeaking4123ReadingB5Writing6VocabularyandStructure8Self-evaluation7Grammar9AGlimpseoftheGreatestBuildings10
Task1Task2
Task1Workinpairs.Discussthequestion:Whatarethemeaningsofthefollowingelectricalsafetysigns?
Task2MatchthefollowingtermswiththeirChinesemeanings.1.electricalconstruction2.electricallayout3.electricallightingsystem4.electricaloperatingstation5.electricalpowersystem6.electricaldistributionsystemA.配电系统B.电力系统C.电气布局D.电气操纵台E.电气施工F.电气照明系统
ReadingATask1TextTask2Task3Task4
ReadingATask1Beforereadingthepassage,seehowmuchyouknowaboutelevatorsbyansweringthefollowingquestions.1.Whatdoyouknowaboutthehistoryofelevators?2.Howdoesanelevatorwork?
ReadingAElevatorsWithoutelevators,skyscraperswouldbeimpractical.Anelevatorisalabor-savingdevicethathelpspeopleandmaterialstomoveupordownabuildingwithgreatefficiencyandsafety.
ReadingAElevatorsareusuallyinstalledinabuildingduringconstruction.Thefirstelevatorswerecontrolledbyhumanoperators,whostoodinsidetheelevatorcaralldaylong.Thefirstelectricelevatorwasbuiltin1880.Thesafetyandspeedofelectricelevatorshavebeensignificantlyenhancedinrecentyears.
ReadingAAnelevatorisessentiallyplatformthatiseitherpulledorpushedupbymechanicalmeans.Anelevatorconsistsofacab(alsocalleda“cage”or“car”)mountedontheplatformwithinanenclosedspacecalledashaft.Theelevatorworkslikethis:thecarwhichcarriespassengerstravelsupanddowntheliftshaftbetweenguiderails.Thewireropeswhichsupportthecararefixedtoaheavycounterweightthatmovesupanddowntheliftshaftonseparateguiderails.Therefore,whetherthecarisfullornot,theelectricmotorneverhastoliftmorethanhalfthecombinedweightofthecarandpassengers.
ReadingAToday,elevator