unit9 When was it invented课件（PPT 31页）.ppt

Unit 9When was it invented?Section A Period 1 Listening (1b: P68) Sample dialogues: A: When was the telephone invented? B: I think it was invented in 1876. A: When was the car invented? B: I think it was invented in 1930. I think it was invented after the telephone. C: I don’t think so. I think it was invented in 1873, so it was invented before the telephone. Listening (2a, 2b: P69) Oral Practice (2c: P69) Sentence pattern: What is it / are they used for? Who was it / were they invented by? It is / They are used for doing... It was / They were invented by ... Sample dialogues: A: What is this? B: This is a heated ice cream scoop. A: What is it used for? B: It is used for scooping really cold ice cream. A: Who was it invented by? B: It was invented by Chelsea Lanmon. Grammar Focus (P69) The passive voice 被动语态 在被动语态的句子中, 谓语部分的结构是be + 过去分词。被动语态的句子的时态变化反映在be动词上。也就是说, 把一个句子做成被动语态的句子, 只需要写出be动词的所需时态, 再加上所给动词的过去分词就行了。 1. 世界上许多国家都讲英文。 English is spoken in many countries all over the world . 　　 　 2. 纸是中国发明的。 Paper was invented in China. 3. 这栋大楼是去年建造的。 The building was built last year. * 新目标 九年级 Unit 9 重点句型?? 1.?Who?was?the?telephone?invented?by??? It?was?invented?by?Bell.电话是谁发明的？???电话是贝尔发明的。2.?When?were?electric?slippers?invented???They?were?invented?last?year.电拖鞋是什么时候被发明的？它们是去年被发明的。3.?What?are?they?used?for???它们是用来做什么的？?? 4.?They?are?used?for?seeing?in?the?dark.它们是用来在黑暗中看东西的。5.?Tea?wasn’t?brought?to?the?Western world?until?1610.直到1610年茶才被带到西方世界。?6.?I?prefer?lemons?to?oranges.?I?like?the sour?taste.??我喜欢柠檬胜过橙子。我喜欢酸味。 light bulb When were they invented? What is it called? bike microwave oven alarm clock 1876年 1885年 1927年 1971年 1976年 Tapescript Alice: Life must have been difficult when you were a kid. Woman: Oh, not really. Why do you say that? Alice: Well, you didn’t have many modern inventions. Like, you probably didn’t ha