九年级上册英语Unit 9 When was it invented.ppt

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1、Unit 9 When was it invented?Section BFrom pie plate to flying disk The flying disk was invented by college students.Well,they didnt actually invent itthey discovered it.The original flying disk was really a metal pie plate from a bakery in Bridgeport,Connecticut.The students ate the bakerys pies,the

2、n threw the pie plates.Today there are flying disk clubs,magazines,and a festival.Write paragraphs according to the chart.inventions When were they inventedWho were they invented by/where were they inventedabacusumbrellabinocularscamerabicycleIn the sixth centuryIn the sixth centuryChinese peopleChi

3、nese peopleAbout 4,000 About 4,000 thousand years ago.thousand years ago.Assyria,China and EgyptAssyria,China and Egypt1854IgnatioIgnatio PorroPorro in Italy in Italy1827Joseph Joseph NicephoreNicephore NiepceNiepce1880sIn EnglandIn EnglandMake sentences in class.The abacus was invented in the sixth

4、 The abacus was invented in the sixth century by Chinese people.century by Chinese people.The umbrella was invented about The umbrella was invented about 4,000 thousand years ago in Assyria,4,000 thousand years ago in Assyria,China and EgyptChina and EgyptThe binoculars was invented in 1854 The bino

5、culars was invented in 1854 by by IgnatioIgnatio PorroPorro in Italy in ItalyThe camera was invented in 1827 The camera was invented in 1827 by Joseph by Joseph NicephoreNicephore NiepceNiepce who who took the first photo.took the first photo.The bicycle was invented in 1880s The bicycle was invented in 1880s in England.in England.