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Unit 6 When was it inventedPeriod 5 Section B 1a-1e学习要点：1.掌握重点单词和短语：crispy, salty, sour, customer, by mistake, in the end等。2.继续学习使用一般过去时态的被动语态进行听力训练。1、 自主学习1、被动语态的时态: 被动语态的时态通过be的变化来体现，它必须与主语的人称、数一致。以下是几种常用的被动语态:(1)一般现在时的被动语态: am / is / are + 动词的过去分词。Eg：This book_ _in two languages.这本书是用两种语言写的.(2) 一般将来时的被动语态:will / be going to + be + 动词的过去分词. Eg: The project will_ _ next month.这项工程下个月就完工.(3) 一般过去时的被动语态:was / were + 动词的过去分词.Eg: The classroom_ _ three days ago. 教室是三天前被打扫的.(4) 含有情态动词的被动语态: 情态动词 +be +动词的过去分词.The classroom _ _ _every day.教室应该每天都被打扫.2、预习1a并完成横线上的内容。二、课堂活动Step1:Before- listeningDo you like potato chips?how were they invented?Step2:While- listening. Finish 1c and 1d. Step3:After- listening. According to the passage, retell the story.Make a conversation about the invention of potato chips. Use the information in 1c and 1d.Step4：拓展练习1.The customer thought the potatoes werent _.不够薄。enough为副词,thin为形容词,enough修饰形容词的时候必须后置。根据汉语提示完成句子。足够的食物 _ 足够好_ 足够勇敢_2.George wanted to make the customer happy.。“make+宾语+形容词(作宾语补足语)”意为“使成为”“使作为”“使变成”。电脑使英语学习更加容易。 Computers make it_to learn English.3.Potato chips were invented by a cook called George. a cook called George 中过去分词短语作定语修饰名词a cook, 其中called=named ( )1.Somebody _Jack phoned while you were out. A.to callB.calling C.being calledD.called4.The customer was happy in the end. in the end= at last, finally,可以放在句首，也可以放句末，时常用逗号与句子隔开。At the end of .后接地点名词，表示在终点，后接表示时间的名词时，表示在结束时。1. Walk along the street and you will find the hospital _ of the street. 2. We will have an English test _ this week.by the end of .意为“在以前”常与将来时态和过去完成时态连用。 Well finish the work _ the year。（ ）1、The hot ice cream scoop was invented by a man _Lanmon. A.was called B.called C.to call D.is called（ ）2.-The soup tastes . -Maybe I added too much _ just now. A. salt; salt B.salty; salty C.salt; salty D.salty; salt（ ）3.The students at the back cant see_ . A. enough clearly B. clearly enough C.enough clear （ ）4.The chef wanted to make the customers _,so he put lots of salt _ the potato chips. A. happy; in B.happily; on C. happy; on D happily;in （ ）5.The young man was made _ the _ chips . A. cut; potatoes B. cuts; potato C. to cut; potato D cutting; potatoes3、 课堂检测用所给单词的适当形式填空。（被动语态）1. The TV _ (invent) around 1927.2. They are used for _ (see) in the park.3. This kite _ (make) by Uncle Wang.4. Tea _ (discover) a long time ago.5. Our classroom _ (should clean) every day.6. Many trees and flowers _ (plant) in our school last year and they made our school a beautiful garden .四、课堂评价：1.自评： 小组评 ：2.已学到了哪些知识？3.存在的问题或困惑？
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