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1、UnitUnit 6 6 WhenWhen waswas itit invented?invented? SectionSection B B，1a-1e1a-1e & & SelfSelf CheckCheck 一、一、TeachingTeaching Aims:Aims: 1.to learn and to use new words crispy sour by mistake customer 2.to be able to use “the passive voice of past tense“ 二、TeachingTeaching keykey points:points: (1
2、) sentences: “the passive voice of past tense“ Eg. It was invented by a great man. (2) new words and phrases: crispy sour by mistake customer 三、三、TeachingTeaching difficultdifficult points:points: sentences: “the passive voice of past tense“ Eg. It was invented by a great man. 四、四、TeachingTeaching A
3、ids:Aids: 1. a tape recorder 2. the blackboard 3. a computer with PowerPoint 五、五、thethe firstfirst periodperiod (for(for oneone class)class) 六、六、TeachingTeaching stepssteps Step1: Review 八大时态被动语态 八大时态 一般现在时：主语+动词原形/ 单三主语+动词的单三形式 一般过去时：主语+动词的过去式 现在进行时：主语+am/is/are/+v-ing 过去进行时：主语+was/were+v-ing 一般将来时
4、：主语+will/shall+动词的原形 主语+be going to+动词的原形 过去将来时：主语+would+动词的原形 主语+was/were going to+动词的原形 现在完成时：主语+have/has+动词的过去分词 过去完成时：主语+had+动词的过去分词 八大时态对应的八大被动语态 一般现在时的被动语态：主语+am/is/are/+动词过去分词+by sb. (sb 为宾格) 一般过去时的被动语态：主语+was/were+动词过去分词+by sb. 现在进行时的被动语态：主语+am/is/are/+being+动词过去分词+by sb 过去进行时的被动语态：主语+was/we
5、re+being+动词过去分词+by sb. 一般将来时的被动语态：主语+will/shall+be+动词过去分词+by sb. 过去将来时的被动语态：主语+would+be+动词过去分词+by sb. 现在完成时的被动语态：主语+have/has+been+动词过去分词+by sb. 过去完成时的被动语态：主语+had+been+动词的过去分词+by sb. Step2: Learn the new words and expressions 1. crispy adj. 脆的；酥脆的 2. sour adj. 酸的；有酸味的 3. by mistake 错误地；无意中 4. custome
6、r n. 顾客；客户 Step3: The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word. On PPT7 Step4: Write the name of a different food after each word. sweet_banana_ crispy_ salty_ sour_ Step 5: Listen and circle T for true or F for false.
7、 1. Potato chips were invented by mistake. T F 2. They were invented in 1863. T F 3. The customer thought the potatoes were not thin enough. T F 4. The customer said they were not salty enough. T F 5. George wanted to make the customer happy. T F 6. The customer was happy in the end. T F Step 6: Lis
8、ten again. Complete the sentences. The History of Potato Chips Did you know that potato chips were invented by mistake? Potato chips_ by a cook called George Crum. They were invented in_. George Crum cut the potatoes really, really_ and then cooked them for a long time until they were_. And he put l
9、ots of salt on them so they were_. Step7: Make a conversation about the invention of potato chips. Use the information in 1c and 1d. A: Did you know potato chips were invented by mistake? B: Wow, I didnt know that. Who invented them? A: . Step8: Self Check 1. Complete the passage with the correct fo
10、rms of the words in the box. On PPT12-14 Step 9:Summary (1) sentences: “the passive voice of past tense“ Eg. It was invented by a great man. (2) new words and phrases: crispy sour by mistake customer StepStep 11:11: Homework 1. Remember the new words, and we are going to have a dictation tomorrow 2.
11、 Preview section B, 2b 七、七、 BoardBoard DesignDesign UnitUnit 6 6 WhenWhen waswas itit invented?invented? SectionSection B B，1a-1e1a-1e & & SelfSelf CheckCheck 1. sentences: “the passive voice of past tense“ Eg. It was invented by a great man. 2. new words and phrases: crispy sour by mistake customer
