(
课件网) 初中英语九年级 Unit 6 When was it invented? Revision Revision of Unit 6 When was it invented? Unit 6 When was it invented? topic function structure The history of inventions Introduce a certain invention Passive voice (past tense) Inventions make our life easier and more comfortable. car computer potato chips zipper telephone Unit 6 When was it invented? Inventions History Purpose Alice: When was…invented? Bill: It was invented in… Alice: Who was… invented by? Bill: It was invented by…. 1885 Benz 1876 Bell 年份的读法 两个数字一组，分为前后两组 1836 eighteen thirty-six 暂停 1分钟 Unit 6 When was it invented? Inventions History Purpose A: What is the _____ used for? B: _____. It's used for searching the information It's used for carrying people to other places It's used for talking with people Bill: Amy, what are you doing? Amy: I'm making a cake in the microwave oven. Bill: Oh,I don't know the oven can be used to make cakes. How useful it is! Tell me more about it! Amy: No problem! Bill: _____ Amy: It was invented in 1945. Bill: _____ Amy: An American inventor called Spencer. Bill: _____ Amy: It's used for cooking and heating food. Bill: Wow! It’s really a great and useful invention! When was it invented? Who was it invented by? What's it used for? microwave oven 1945 Spencer(斯宾塞） cook and heat food TV 1926 Baird(贝尔德） watch programs Make up dialogues！ 暂停 1分钟 be used for doing =be used to do 被用来做某事 used to do 过去常干某事 be/get used to doing 习惯于做某事 Language points 1.--My father _____ to his workplace by bus,but now he _____there by bike. --Really? You have an environmentally-friendly father. A. used to go, is used to go B. used to going, is used to go C. is used to go, is used to going D. used to go, is used to going 2. This material _____making clothes in the past. But now cotton takes its place. A. used to B. is used for C. was used to D. was used for 3. We used to_____(stay) up late, but now we get used to _____(go) to bed early . 4. These steels are used to_____ (build) a new factory. stay going 暂停 1分钟 build zipper popularity 普及，流行 purpose history When did it become popular? Who was it invented by? When was it invented? It became popular around 1917. Retelling Whitcomb Judson in 1893 What's it used for? making dresses,trouses... The zipper was invented by Whitcomb Judson in 1893. But (However,）it didn't become so popular until 1917. It is used for making dresses, trousers, shoes, bags...almost everywhere. It's clear that it's widely used now. 有道理 先驱先锋 暂停 1分钟 No inventions, no life! Zipper History Purpose Popularity when who The history of potato chips Do you know how potato chips were invented? Potato chips _____ by mistake by a cook called George Crum. They were invented in _____. A customer said the fried potatoes were too thick and sent it back to the kitchen. George was angry and cut the potatoes really, really _____ and then ... ...
