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Unit 6 When was it invented? n. 鞋跟;足跟 /hi:l/ n. 勺;鏟子 /sku:p/ n. 電;電能 /,ilek39。tris?ti/ n. 樣式;款式 /stail/ n. 高興;愉快 /39。ple??(r)/ n.(=zip) 拉鏈;拉鎖 /39。zip?(r)/ adj. 每日的;日常的 /39。deili/ Words and expressions heel scoop electricity style pleasure zipper daily 有道理 n. 網(wǎng)站 /39。websait/ n. 先鋒;先 /,pai?39。ni?/,/,pai?39。nir/ v. 列表;列清單 /list/ n. 名單;清單 v. 替代;說到 /39。men?n/ have a point website pioneer list mention Words and expressions What are the Four Great Inventions in ancient China? Do you know? papermaking 造紙術(shù) pass 指南針 printing 印刷術(shù) gunpowder 火 藥 造紙術(shù) 印刷術(shù) car What’re these called in English? television telephone puter calculator microwave oven light bulb battery Look at the things. In what order do you think they were invented? A: I think the calculator was invented before the puter. B: Well, I think the calculator was invented after the puter. The car was invented before the TV set. A: I think … was invented before … B: Well, I think … was invented after …. The telephone was invented before the TV set. A: I think … was invented before … B: Well, I think … was invented after …. The telephone was invented before the puter. A: I think … was invented before … B: Well, I think … was invented after …. 2a Listen and number the inventions [1–3] in the order you hear th