九年級(jí)英語全冊(cè) 口頭表達(dá)專練 Unit 6 When was it invented A課件 （新版）人教新目標(biāo)版

1、1Unit 6 When was it invented?A2你好，這次我們學(xué)校的項(xiàng)目主題你好，這次我們學(xué)校的項(xiàng)目主題是是“改變世界的小發(fā)明改變世界的小發(fā)明”。你能幫我想一個(gè)發(fā)明嗎？你能幫我想一個(gè)發(fā)明嗎？3我很樂意！讓我想想我很樂意！讓我想想嗯嗯有啦！有啦！拉鏈！拉鏈！拉鏈？它真是一項(xiàng)那么了不起的拉鏈？它真是一項(xiàng)那么了不起的發(fā)明嗎？發(fā)明嗎？4想一想在我們的日常生活中拉鏈想一想在我們的日常生活中拉鏈?zhǔn)褂檬嵌嗝搭l繁。使用是多么頻繁。你能看到裙子、褲子、鞋子、背你能看到裙子、褲子、鞋子、背包上的拉鏈包上的拉鏈幾乎無處不在！幾乎無處不在！5看來你說的確實(shí)有點(diǎn)道理?？磥砟阏f的確實(shí)有點(diǎn)道理。 當(dāng)然！我想到

2、了拉鏈因?yàn)槲疑现墚?dāng)然！我想到了拉鏈因?yàn)槲疑现芸戳艘粋€(gè)網(wǎng)站。看了一個(gè)網(wǎng)站。6不同發(fā)明的創(chuàng)始人都被列在上面。不同發(fā)明的創(chuàng)始人都被列在上面。比如它提到拉鏈?zhǔn)潜热缢岬嚼準(zhǔn)?893年被惠特年被惠特科姆賈德森發(fā)明的?？颇焚Z德森發(fā)明的。7不過那時(shí)它并沒有被廣泛利用。不過那時(shí)它并沒有被廣泛利用。 真的嗎？那它是什么時(shí)候開始流真的嗎？那它是什么時(shí)候開始流行的？行的？1917年左右。年左右。8Hey, the subject for my school project is “Small inventions that changed the world”. 9Can you help me think of

3、 an invention? With pleasure! 10Let me think.hmm.I know! The zipper!The zipper? Is it really such a great invention?11Think about how often its used in our daily lives. 12You can see zippers on dresses, trousers,shoes,bags. almost everywhere!13Well, you do seem to have a point. Of course! I thought about it because I saw a website last week. 14The pioneers of different inventions were listed there.15For example, it mentioned that zipper was invented by Whitcomb Judson in 1893.16But at that time, it wasnt used widely.17Really? So when did it become popular? Around 1