unit 9 When was it invented? section A [上学期]

课件22张PPT。导言
人类的每一次改革都是社会前进的步伐，每一次思想的升华都越来越接近文明。发明使人类由黑暗走向光明。正因为如此，社会离不开发明。让我们一起走向发明的前源吧。
When was it invented ?Period 1Do you think it was invented?
What is it called?A: I think the telephone was
invented before the car.
B: Well, I think the telephone
was invented after the car.GROUPWORK T: What’s this called in English？S: It’s called a TV.T: Is it an invention?S: Yes, it is.T: When was the TV invented?S: It was invented in 1927.Ask and answerGROUPWORKGROUPWORKT: When was it invented?
S: It was invented in 1883.
T: What is it used for?
S: It’s used for seeing in the dark.T: What’s this called in English？S: It’s called a telephone.T: When was the telephone invented?S: It was invented in 1876.T: What is it used for?
S: It is used for talking with each other.Play games!______ 1876
______ 1885
______ 1927
______ 1971
______ 1976abecd2008福娃贝贝福娃晶晶福娃欢欢福娃迎迎福娃妮妮你Welcome to Beijing北京欢迎退出The end