新目标九年级unit9 When was it invented?›period1

课件19张PPT。When was it invented?
( Period 1)
(1a-1c& Grammar Focus)Unit 9It was invented …What is he doing?He’s ___________
_______________.What do you think a telephone is used for?A telephone is used for talking with people / making telephone calls / calling up friends /
…. making a
telephone call.be used for + doing/ sth.
被用来做某事a telephonea cara TV seta computer a calculatorWhat are they ? inventions: n.发明What are they used for? …is used for… calling up other people taking people to another place calculating helping people with study and work knowing more about the worldinventor n. 发明家
eg: Edison is a famous inventor.invent v. 发明
eg: Edison is a famous inventor who invented the light bulb (灯泡). invention n. 发明
eg:The light bulb is a great invention.be invented by 被…发明
eg: The light bulb was invented
by Edison.Edison
A: I think the telephone was invented
before the car.
B: Well, I disagree. I think the telephone was invented after the car.In what order (顺序) you think they were invented? Number 1-5.listen and match the inventions and the dates._____ 1876
_____ 1885
_____ 1927
_____ 1971
_____ 1976d
a
e
c
b1bG: Life must have been difficult when you were a kid.
W: Oh, not really. Why do you say that?
G: Well, you didn’t have many modern inventions. Like, you ...?
W: Of course we did! How old do you think I am? ____1____.
G: How about cars? I bet cars weren’t invented yet.
W: Sure they were. ____2____. My family ...
G: Ha, ha! Well, did you have a TV?
W: No, we didn’t. ____3____, I think. Some friends of mine ...
G: And I bet you... We learned in school that hand-held ____4____ and ____5____.
W: You’re right. I didn’t have those things when I was young. But I do now!1. The telephone was invented in 1876.2. Cars were invented in 1885.3. The TV was invented around 1927.4. Calculators were invented in 1971.5. Personal computers were invented in 1976.A: When was the … invented?
B: It was invented in _____. 1cPair work19761927187618851971Baird (贝尔德 )
Bell (贝尔 )
Wozinak and Jobs (沃兹奈克和乔布斯)
Simckley (辛克莱)
Benz (本茨 )Guess who these inventions were invented by?
Guessing:. Maybe/Perhaps the…were invented by XXX. A: What’s this in English？
B: It’s a TV set.
A: When was the TV set invented?
B: It was invented in 1927.
A: Who was it invented by?
B: It was invented by Baird.
A: What is it used for?
B: It is used for knowing more about the world….
Ask and answer188519711976Wozinak and JobsSimckleyBaird1927Bell1876Benz A: What’s this in English? B: It’s ...
A: When was… invented? B: It was invented in ...
A: Who was… invented by? B: It was invented by ...
A: What is … used for? B: It is used for …The four great inventions of ChinaChina is an old country with a long history. It has the four great inventions….We use a telephone for talking with people.
Bell invented the telephone.
Bell invented the telephone in 1876.A telephone is used for talking with people.
It was invented by Bell.
It was invented in 1876.Find the differences:GrammarWe use a telephone for talking with people.
Bell invented the telephone.
Bell invented the telephone in 1876.A telephone is used for talking with people.
The telephone was invented by Bell.
The telephone was invented in 1876.Passive voice: 被动语态被动语态:P143定义: 主动语态表示主语是动作的执行者, 被动语态表示主语是动作的承受者。 We speak English.主语谓语宾语English is spoken by us.主语谓语宾语主动语态被动语态巧记: 宾变主, 主变宾, 前加by
动变被, 看清be, 结构be + p.p.主变被解题步骤:1. 找宾语 ----即动作的承受者eg: They make shoes in that factory. Shoes2. 判断宾语的单复数 ----即be动词的单复数.are
were3. 判断动词的时态 ----即be动词的时态.4. 修改谓语的时态 ----即原句动词改为过去分词 made5. 修改原句的主语 ----即by+ 主语/ 宾语（人称代词）. by themin that factory.6.其它的成分（定语、状语）不变。√1. People use knives for cutting things.
Knives _____ _____ for cutting things.
2. The students clean the windows of their classroom twice a month.
The windows of their classroom_____ _______ twice a month.
3. I found the ticket on the floor .
_____ ______ ______ ______ on the floor.
4. I told her to return the book in time.
She _____ ______ to return the book in time.
5. Now people can use computers to help them.
Now computers _____ _____ ______ to help them. are usedare cleaned(变被动语态）The ticket was found was told can be usedExercise:Homework:读P133听力材料，完成P69 2a,2b.
背P69 Grammar Focus.
作业本（1）P29 I II III
预习P71 1a.1bThank you!
Byebye!