九年级英语When was it invented课件8.ppt.ppt

Unit 9 When was it invented? Section A Teaching aims: ● Knowledge aims: ?★ Words: invent, inventor, invention, calculator, scoop, adjustable, heel, battery, operate, slipper, heat. bulb, light bulb, microwave, oven, microwave oven, island ★ Phrases: be inveted by ….., be used for doing sth . ★ Useful expressions: When was/were sth . invented? Who was/were sth . invented by? What are they used for? Ability aims: Students can use Passive Voice to talk about the histories of some inventions. Feeling aims: Students can try their best to invent some useful inventions. zxxk◆ When were they invented? Do you know? A : When was the _______ invented ? B: I think it was invented in ______. A : When was the _______ invented ? B: I think it was invented in ______. 1976 1885 1876 1927 1971 Pairwork : Karl Benz 1885 A: Who invent ed the car? B: It ____ ________ by_________. was invent ed Karl Benz A: When was it invent ed ? B: It ____ _________ in ______. was invent ed 1885 Bell Bell 1971 A: Who was the telephone invent ed by? B: It ____ ________ by_____. was invent ed Bell A: When was it invent ed ? B: It ____ _________ in ______. was invent ed 1971 ◆ What are they used for? Z, xxk Do you know? A : What is the _______ used for? B : It is used for _______. ( study ) study ing A : What is the _______ used for? B : It is used for ___________________. (talk with people) talk ing with people