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Unit9Whenwasitinvented課件.pptVIP

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Unit9Whenwasitinvented課件

* * Unit 9. When was it invented? 授课教师 : 龙秀云 初三英语(上) 一般过去式的被动语态 was/were+动词的过去分词 1.那封信是他写的. 构成: The letter was written by him. 2.这些椅子是小王昨天修的. These chairs were repaired by Xiao Wang yesterday. 3.我被告诉说你今天早晨迟到了. I was told you were late this morning . 4.他被班主任批评了. He was criticized by the head teacher. invent /In’vent/ v . 发明;创造  Invented ;invented 1.Who invented the steam-engine(蒸汽机)? The steam-engine was invented by Watt. 2.When was the steam-engine invented? The steam-engine was invented in 1782. Unit 9. When was it invented? Language Goal :Talk about the history of inventions. 1a.GROUPWORK look at the things below. In what order do you think they were invented? Number them [1-5] (1=first, 5=last). A: I think the telephone was invented before the car. B: Well, I think the telephone was invented after the car. 1b,Listen and match the inventions with the dates. d 1876 1885 1927 1971 1976 a e c b 1c.PAIRWORK student A ,cover the dates. student B, ask student A when the things in the picture above were invented. Then change roles and practice again. A: when was the telephone invented? B: I think it was invented in 1876. 小结: 1.复习一般过去式的被动语态 was/were+动词的过去分词. 2.识记词汇: invent. 3.了解一些历史发明,会用下列句型交际. when was the telephone invented? I think it was invented in 1876.       Homework. 1.Write out the conversations in Activity 1a and 1c. 2.Please use the magazines or your history books, look up who invented the light 、 the train、the plane as so on,and when they were invented.

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