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1、UnitFourMachineToolsTask1VocabularyStormingscrew,cam,handwheel,motor,punchtape,lever,parallel,vertical,cylindricalshapeDoyouknowthefollowingEnglishwords?screwb.camc.handwheeld.motore.punchtapef.leverg.parallelh.verticali.cylindricalshapeTask2Listening&Speaking1.Learn
2、ingsituation:PeterisshowingMikearoundtheworkshop.PeterintroducestoMiketheturningandmillingmachinesintheworkshop.Mikeasksabouttheuseofturningmachinesandthepositionsofmainspindleandtailstock.PeterexplainstohimwhatareprocessedhereandgivesMikeaclearideaofhowcompactaturni
3、ngmachinecanbe.Speakingmaterial:metalprocessing,turning,milling,beusedfor,shaft,speakingof,indeed,axleKeysentences:1….arethelatestmodel. 2.Whatare…mainlyusedfor? 3.Speakingof… 4.Younameit. 5.Withdifferent…,therewillbedifferent… 6.Thatmustbe… 7.Itgetsitsnamebecause…Pe
4、ter:Nowweareenteringmetal processingworkshop.Mike:It’sreallyhuge.Therearesomanyturningand millingmachines.Peter:Exactly.Allthemachinesinthisworkshopare thelatestmodel.Mike:Whataretheturningmachinesmainlyusedfor inyourworkshop?Peter:Theyaremainlyusedformachiningshaft
5、componentsandcasetypedparts,likeshells andcabinets.Dialoguesample1:VisitingMetalProcessingWorkshopMike:Speakingofshafts,thoseof motorengines,bikesandmachine toolsareprocessedhere?Peter:Indeed.Wormshaft,crossaxle,eccentricshaft, bentaxle…younameit.Withdifferentcutters
6、, therewillbedifferenteffects.Mike:That’samazing.MayItakeacloselookata turningmachine?Peter:(Toaturningmachine)Noproblem.Thisiswhat youarelookingfor.Mike:Great.Whereisthemainspindle?Peter:It’sintheheadstock, whichisfastenedonthebedways.Mike:Oh,Isee.Thatmustbethetails
7、tock.Peter:Yeah,itgetsitsnamebecauseofitsposition.Mike:Howcompact!Implementation:Choosethebestansweraccordingtothedialogue1.1.Wheredoestheconversationtakeplace? A.OfficeB.WorkshopC.Warehouse2.HowmanytypesofmachinetoolsareusedinPeter’sworkshop? A.TwoB.FourC.Three3.Wha
8、tmachinetoolsaremainlyusedformachiningshaftcomponentsandcasetypedparts? A.MillingmachinesB.TurningmachinesC.BothBandCBAB4.Different
