Unit 9 When was it invented? Section A Period 2 【最新】九年级英语 第 9单元 sectionA课件 新目标 课件 Pairwork (3a:P70) Helpful inventions: vacuum cleaner, soundproof door and window, car, computer, fax machine Annoying inventions: air-conditioner, truck, telephone, junk food, ice cream 【最新】九年级英语 第 9单元 sectionA课件 新目标 课件 Sentence pattern: What is this in the picture? What is it used for? Do you think it is helpful / annoying? 【最新】九年级英语 第 9单元 sectionA课件 新目标 课件 Dialogue 1: A: What is this? 【最新】九年级英语 第 9单元 sectionA课件 新
