Unit9Whenwasitinvented?Unit9Whenwasitinvented?Period1SectionA1a-2cWordsPeriod1SectionA1a-2cWordsThefourgreatinventionsPrinting,gunpowder,paper-makingandthecompassarethefourgreatinventionsoftheancientChina.TheywereinventedbyChinese.Theystillplayanimportantpartinthemodernworld.ThefourgreatinventionsInventionschangedourworld!calculatorcomputercartelephoneTVA:Ithinkthecalculatorwasinventedbeforethecomputer.B:Well,Ithinkthecalculatorwasinventedafterthecomputer.1aLookatthethings.Inwhatorderdoyouthinktheywereinvented?19761885197118761927KarlBenzPascalBairdBellRobertoldinventionsA:Whenwas…invented?B:Itwasinventedin…A:Whowasitinventedby?B:Itwasinventedby…highheelsshoeswithadjustableheelsicecreamscoopheatedicecreamscoopbatteryslippersbattery-operatedslipperselectricslippersA:Whatisthis?B:It’saheatedicecreamscoop.A:Whatisitusedfor?B:Itisusedforscoopingreallycoldicecream.A:Whowasitinventedby?B:ItwasinventedbyChelseaLanmon.WriteanarticleaboutthefourgreatinventionsoftheancientChinese.Tips:Whatarethefourgreatinventions?Whoweretheyinventedby?Whenweretheyinvented?Whatdoyouthinkoftheinventions?
