Unit 6Unit 6When was it invented?Section A 1 1a~2c2016 China Jingdenow the four great inventions of China?gunpowderpaper-makingprintingcompass 105 B.C.1041It was invented …When was … invented?paper printing11th Century9th CenturyWhen was … invented?It was invented …compassgunpowderDo you know Shenarl Bennow who these inventors are? Alexander Bell亚历山大 贝尔J. L. Baird贝尔德John Blankenbaker约翰 布兰肯贝克The first telephone was invented by Bell. Bell invented the first telephone.BelltelephoneBenenbaker invented the first computer.The first computer was invented by Blankenbaker. BlankenbakercomputerLook at the things below. In what order do you thi |
