人教版九年级英语上册《When was it invented?》PPT下载(第1课时)，共43页。学 习 目 标听并用被动语态谈论重要的发明及其历史(1)—When was … invented?—I think it was invented in…(2) I think … is invented before/after…听并用被动语态谈论发明物的用途What is/are … used for?It is/they are used for...课 堂 学 习Do you know what these inventions are?Bell invented the first telephone in 1876.The first telephone was invented (by Bell) in 1876.Karl Benz invented the first car in 1885.The first car was invented (by Karl Benz) in 1885.J. L. Baird invented the first television in 1927.The first television was invented (by J. L. Baird) in 1927.Lead-inWhere can you see it?Pants, trousers, bags, backpacks, shoes, suitcases, etc.Role-play the conversation.Read the passage quickly and answer the questions.1. Who invented the zipper?It was invented by Whitcomb Judson.2. When was the zipper invented?It was invented in 1893.3. When was it used widely?It was invented in 1917.HomeworkPreview the passage in 3a.Look up some information about some famous inventions.... ... ...关键词：When was it invented? PPT课件免费下载，.PPT格式； 本作品中主体文字及图片可替换修改，文字修改可直接点击文本框进行编辑，图片更改可选中图片后单击鼠标右键选择更换图片，也可根据自身需求增加和删除作品中的内容，源文件无水印。如认为该内容涉嫌侵权，可通过邮件提出书面通知，我们将及时处理。