吉林省扶余一中高二英语《Unit3 Inventors and inventions》课件

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Unit 3Inventors and inventions Thomas Edison invented the electric bulbZhang HengseismographinventedStephensonRocket inventedBen FranklinFlash is electricitydiscoveredNewtongravitydiscoveredradiumMadame CuriediscoveredDo you know what these inventions are and when did they happenTelephone 1876television 1923 colour television 1940photocopier 1937air conditioner 1902electronic digital computer 1942Atomic bomb 1945Credit cards 1950Penicillin 1928What is a discovery An invention，大小：7.72 MB