九年级英语全册 Unit 6 When was it invented Section A 1a-1c课件

1、Unit 6Section A 1a-1c Unit6 When was it invented?There were four great inventions in China. What were they?compassprintingpaper makinggun powderNowadaystelevisionwatchplaneMobile phoneMost family has it. And you often watch it at home on weekends.You can see it on the teachers desk. It looks like a

2、TV, but it isnt. GuessingcomputerTVIt has numbers on it. You can use it to talk with your friends.Its expensive. It goes faster than the bus.telephonecarLook at the things below. In what order do you think they were invented? Discuss them with your group. Then number them 1-4. 1a2314I think the TV w

3、as invented before the car. Well, I think the TV was invented after the car. I think the telephone was invented before the computer. Well, I agree with you.Guessing: What is this?It is a car.When was it invented ?It was invented .in 1885carin 1885computerTVtelephoneListen and match the inventions wi

4、th the years. 1b_ 1876_ 1885_ 1927 _ 1971 dacbA: When was the _ invented?B: It was invented in _.1971188518761927Task 2: 1cPair workWhen were they invented? They were invented in 1927 . TV (s)in1927Ask and answer:When were they invented?They were invented computersin 1971in 1971.Karl Benz invented t

5、he car._ was invented by _.The carKarl BenzWho invented the car ？Who was the car invented by ？Karl BenzTask3:Bell invented the telephone._ was invented by _ .The telephoneBell Who invented the telephone ？Who was the telephone invented by ？BellKarl BenzBellWho was _invented by ?It was invented by _.K

6、arl Benzthe TVBell the carBairdBaird the telephoneGood to knowA: When was invented?B: It was invented inA: Who was it invented by?B: It was invented by .188518761927Karl Benz卡尔 奔驰Baird贝尔德Bell贝尔Who were they invented by?Karl Benz invented the car._ was invented by _The carKarl Benz观察与思考：Bell invented

7、 the telephone._ was invented by _.The telephoneBellThe passive voice.被动语态被动语态的构成:be动词+ (及物动词的) 过去分词 一般现在时一般过去时am (is, are) + donewas (were) + done动词填空： TVs _ (invent) around 1927.This kite _ (make) by Uncle Wang. Tea _ (discover) a long time ago. Our classroom _ ( clean) by us every day.were inventedwas made was discoveredis cleaned请把下列主动句变为被动句。They produced that kind of car.The workers plant some trees.That kind of car was produced by them.Some trees are planted by the workers.Exercises 根据时间写出发明物。 (1)1885_ (2)1876 _ (3) 1927_ (4) 197