Unit 4 Inventions-Great Chinese Inventions

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1、Module2Unit4InventionsGreatChineseInventionsCananyonetellmesomethingaboutGreatChineseinventions?Yes，Ican!ChineseinventionsThefourgreatinventionsofancientChinareferstotheworldhasagreatinfluenceonthefourinventions.Namelypapermaking,thecompass,gunpowderandprinting.Fourgreatinventions

2、inthehuman'scivilizationhavetheimportantpositionintheworld.SoChinabecomeoneofthesymbolsofancientcivilization.Theseinventionsthroughvariouswaystospreadtothewest,thehistoryoftheworldcivilizationhasalsohadabigimpact.Thecompasstothelocationofajudgeisasimplemachine.PredecessorisSiNan.T

3、hecompasswasmadeofmagnet.Themagnetcanabsorbiron,usuallycalledlodestone,theancientcalledCiShibecauseittouchedtheironwillabsorb,likeakindmotherattractherownchildren.Later,peoplejustcalleditmagnet.Readandsay.GunpowderisChineseHannationalityinventedinsuiandtangdynasties,ithasmorethano

4、nethousandyears.ThegunpowderstudybeganinancienttaoistLianDanShu,ancientpeopleforthesakeofimmortalityandrefiningDanmedicine,LianDanShupurposeandmotivationareridiculousandridiculous,butit'stheexperimentalmethodorhashismerits,andfinallyledtotheinventionofgunpowder.Papermakingwasthe7t

5、hcenturytowardtoJapan.8thcenturytotheunitedArabemirates.Tothe12thcentury,EuropetofollowChina'swaytobeginthepapermakingfactory.China'sprintingwastheforerunnerofmodernhumancivilization,forspreadoftheknowledgeexchange,andcreatetheconditions.China'sfourgreatinventionsofourpeoplearecom

6、monlaborcrystallization,toourcountryandeventheworldmadeaprofoundimpact.Thanks!