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1、 Unit 9When was it invented?period 1 (1a-1c)watchestell time1462alarm clocks1088Su Sungwake people upkeyslock doors A:What are they? B:They are keys. A:What are they used for? B:They are used for locking doors.hamburgerseatT V1927know the world betterA:When was it invented？A:Whats this? A:Whats it u
2、sed for?B:It was invented in 1927B：Its a TV set.B:Its used for knowingthe world better.Look and say:telephone1876communicate with otherscalculator1971count1839.take photoscameracar1885go instead of walkingcomputer1976send and receive information1810trainWhats this? Its a train.When was it invented?
3、It was invented in 1810.Who was it invented by? It was invented by Stephens.Stephensplane 1907 Wright Brothers Do you know when they were invented? Do you know when they were invented? 18761885192719711976adbce12345A:What are they?B:They are light bulbs.A:When were the light bulbs invented?B:They we
4、re invented in 1878 . A:What are they used for?B:They are used for giving light in the dark.A:Who were they invented by?B:They were invented by Edison.light bulbs1878give lightEdison1971, calculatePascal in 1903 , travelWright BrothersA: Whats this in English?B: It is A: When was it invented?B: It w
5、as invented A: Who was it invented by?B: It was invented by A: What is it used for?B: It is used for in 1871giving lightEdison in 1876talk with othersBellin 1927, relaxJohn BairdWriting:InventionInventorTimeUsed forwatch1462tell timeclockSu Sung1088wake people upbasketball Naismith1891playlight bulb
6、sEdison1878give lightpotato chipsGeorge Crum1853eatEg: There are many important inventions in the world. They make our lives convenient. For example, the clock was invented by Su Sung in 1088.And it is used for waking people upThe light bulbs were invented by Edison in 1878. They are used for giving
7、 light The inventors are very great and we should be thankful to them for their clever ideas. Will you be one of them when you grow up?Do exercises in class:1. Chinese_by more and more people in the world now. A.is spoken B.is speaking C.speaks D.spoke2. I_ to sing a song last night. A.am asked B.wa
8、s asked C.ask D.asked3.It was used_changing the style of the shoes. A.to B.for C.in D.at4.Cars were invented_1885. A.on B.at C.for D.in5.-Who_the washing machine_? -It was invented by Fisher. A.did, invent B.is, invented C.was, invented D.was, invented byABBDD用所给词的适当形式填空：1.Stamps are used for (post)
9、 letters.2.A new school (build) last year.3.I think the computer is an importment (invent) in the world. 4.He was seen (go) out by me.5.Who (save) her father?He (save) by that policeman.postingwas builtinvention to gosavedwas saved补全对话： A: Do you know when the telephone was invented?B: Yes.1 .A: 2 .
10、B: No, I think it was invented after the car.A: 3 .B: Its used for talking with our friends and relatives.A: 4 .B: I think the car is more useful than the telephone. It can take us to everywhere we want to go.A: Would you like to buy a car someday?B: 5 .A: what is it used for? B: I think it was inve
11、nted in 1876.C: Where was it made? D: I hope so. E: Which do you think is more useful ?F: Do you think it was invented befor the car.G: I enjoy making telephone calls. Homework 补全对话：A: What do you think is the most useful 1. ?B:I think it is the light bulb.A: Who was it invented 2. ?B: Thomas Edison.A: Which country 3. he born in?B: America.A: 4. was it invented?B: It was invented after many experiments.(实验)A: Did he invented other things?B: Yes, he invented lights talking machine and so on.A: Perhaps he is the greatest 5. the world has ever known.inventionbywasHowinventorGood bye!
