presentaion-Specialty English for Civil Engineerin

SpecialtyEnglishforCivilEngineeringPresentation一、Presentationisrequiredforeveryone,thispartwilltake30percentoftotalscore,i.e.30scores.Somerequirementmustbeknowasfollowing:(1)Thecontentiscomparativelyfree,howeverit’sbestthatthecontentinvolvescivilengineering,suchasbridges,foundations,tunnels,buildingmaterials,andsoon.(2)Everyoneshouldgivearepresentationspeechindais(讲台）withPPT,whichshouldbeconcise(简洁）andillustrated（图说）.(3)Representationtakestimenomorethan5minutes，butnolessthan3minutes.(4)Speechshouldbeloudenoughtomakeallclassmateshear.Thispointisimportant.(5)Anyonegivinguptherepresentationwillgetnomarkinthispart.二、Themarksofpresentationmainlyconsistsoffourcomponentswrittenbelow:(1)HowaboutisthequalityofPPT?(2)Isthespeechloudenoughandclear?(3)Performacneindais.(4)Arethecontentsofspeechorganized?Hereisanexampleforyou,inwhichtherelativematerialscanbefoundinwebsite.AnintroductiontoBridgesBridgescanbemainlydividedintofivetypeslistedas:1.Beambridges2.Archbridges3.Rigidframebridges4.Suspensionbridges5.Cablestayedbridges1.BeambridgesAbeambridgeisthesimplestkindofbridge,anditcanbesubdividedintothreetypesincluding:(1)Simplebeambridges(2)Cantileverbridges(3)Continuousbeambridges(1)SimplebeambridgeabeamhastwosupportsatbottomoftheendsThesupportonlyoffersaverticalconstrainingforce.(2)CantileverbridgeThebeamisbeyondthelastpointofsupport(3)ContinuousbeambridgeAbeamhasseveralsupports.Andthebeamundertakesbendmomentatlocationsofmiddlesupports.Generally,abeambridgehasthefollowingfeatures:Firstly,thefartherapartitssupports,theweakerabeambecomes.Secondly,cheapandcheerfulThirdly,EasytomanufactureFourthly,notbeautiful.2.Archbridge(1)Top–beararchbridgeItcanalsobesubdividedintothreetypesaccordingtothelocationofbridgedeck.Thedeckisoverthearch.(2)Middle–supportedarchbridgeorhalf-througharchbridgesThedeckpassesthroughthemiddleofthearch.(3)ThroughbridgeThedeckisunderthearch.3.RigidframebridgesThebeamsandpiersorabutmentsarecasttogether.Theconnectionsbetweenbeamsandpiersorabutmentsarerigid,withstandingbendmoment.4.Suspensionbridges5.CablestayedbridgesThatisall,thankyou!