王杏国Unit6Whenwasitinvented导学案.doc

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1、Unit6 When was it invented? Section B（1a1e）导学案授课人：王杏国Step I Revision:1、Talk about some pictures, using the structures learnt in Section A.2、Ss read the structures aloud.When was it invented? It was invented in (1927)Who was it invented by? It was invented by(Bell)How was it invented? It was invented

2、 by accident./by mistake.When were they invented? They were invented in (1927)Who were they invented by? They were invented by(Bell)How were they invented? They were invented by accident./by mistake.Step II. Practicing.Ss make their own conversations in pairs.Step III. Listening.笔录要点：根据你听到的内容，填写下面表格

3、中所缺的单词，每空限填一词。 The History of Potato ChipsWhoThey were invented by a(1)_ When They were invented in(2)_HowGeorge Crum cut the potatoes really, really(3)_ and cooked for a long time until they were (4)_. Finally he put lots of salt on them so they were really(5)_Step IV. Reading.Task1. Read the conve

4、rsation and circle T for true or F or false.1. Potato chips were invented by mistake. 2. They were invented in 1863. 3. The customer thought the potatoes were not thin enough.4. The customer said they were not salty enough.5. George wanted to make the customer happy.6. The custom was happy in the end. Task2.Read the conversation and answer the questions1. Who invented potato chips? 2. When were they invented?3. What did the custom order at the restaurant?4. What did the custom think of the potato chips George cooked at first? 5. How did George cook the potatoes then?