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1、Unit 9 When was it invented?,Section A,Four great inventions in ancient China:Paper-making(造纸术）Compass（指南针）Printing（印刷术）Gunpowder（火药）,Find out the new words,invent,n.,v.,inventor,invention,calculator,n.计算器,scoop,n./v.勺子，用勺子舀,Adjustable heels,可调整的鞋跟,battery,n.电池,pl.batteries,operate,v.操作，手术,n.,operat
2、ion,slipper,n.拖鞋,heat,v.加热,light bulb 电灯泡,microwave oven 微波炉,The many all his life.,inventor,invented,inventions,What order do you think they were invented?Number them15,1,2,3,4,5,1a,Listen and match the inventions with the dates.,a,b,c,e,1b,Explanation,年份的读法：两位在一起读。eg.1976 1900 2000 Read the follow
3、ing years1745 1305246,nineteen seventy-six,nineteen hundred,two thousand,seventeen forty-five,thirteen and five,two hundred and forty-six,-When was-invented?,-I think it was invented in-,1927,1976,1971,1876,1c,PAIRWORK,Listen and number the inventions in the order you hear them.,1,2,3,2a,Listen agai
4、n and match the items in columns A,B and C.,2b,Practice conversations like this,When was-invented?It was invented in-.Who was it invented by?It was invented by-?Whats it used for?Its used for-,Translate the following phrases,可调整后跟的鞋,shoes with adjustable heelsbattery-oprated slippersheated ice cream
5、 scoopthe style of the shoeswho was sth invented by?,电池控制的拖鞋,加热的冰淇淋勺,鞋的样式,谁发明的某物,microwave oven,alarm clock,light bulb,3a,What do you think is the most helpful/annoying inventions?,helpful,n.+ful adj.,useful wonderfulbeautiful hopeful,annoying,adj.令人恼怒的，+物annoyed=angry+人,Discuss:,3b,Practice convers
6、ations like thisA:What do you think is the most helpful/annoying invention?B:I think the most helpful invention isA:Why is that?B:Well,it gives/helps people,do you think 为插入语,插入语在使用时的基本结构是,特殊疑问词+do you think+(主语)+陈述语气,eg.Where do you think the book is?,I think the most helpful invention is Id like t
7、o have abecause I could Its used for I also want abecause it,4 groupwork,Crazy inventions,used for dancing,used for driving and flying,used for walking and singing,used for living and walking,used for driving in the sea,used for driving,HOMEWORK,1.Recite grammar focus on Page 69and 3b on Page70.2.Finish Exx and on Page 169 and P170 in your workbook.3.Memorize the spellings and uses of the new words.,GoodBye!,
