Unit 10 When was it built Section AWarming up light bulblight bulbWhen were they invented?When were they invented?watchmicrowave ovenalarm clock Listening (1b: Listening (1b: 1876 年 1927 年1971 年1976 年1885 年 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.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.Pairwork (1c:P68)Pairwork (1c:P68) C: I don’t think so. I think it was invented in 1873, so it was invented before the telephone.C: I don’t think so. I think it was invented in 1873, so it was invented before the telephone.D: I don’t agree. I think it was invented in 1885 and it was invented after the telephone.D: I don’t agree. I think it was invented in 1885 and it was invented after the telephone. Listening (2a, 2b: P69)312 scooping really cold ice cream scooping really cold ice creamshoes with adjustable heelsshoes with adjustable heels Jayce Coziar and Jamie Ellsworth Jayce Coziar and Jamie Ellsworth changing the style of the shoes changing the style of the shoes battery-operated snakers battery-operated snakers Julie Thompson Julie Thompsonseeing in the darkseeing in the dark heated ice cream scoop heated ice cream scoopLanmonLanmonChelseaChelsea Oral Practice (2c: 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 ... It was / They were invented by ... Sentence pattern: What is it / are they us...