Unit 9 When was it invented?Section A（1a-2c）period1

课件46张PPT。Unit 9
When was it invented?Section A
Period OneObjectivesTo learn to understand and use passive voice (questions and statements)
To listen and speak about inventions which were made in the past
To listen and speak about what inventions were used forReviewWords and expressionsRead the words and expressions loudly. invent
calculator
be used for
scoop

adjustable v. 发明；创造
n.计算器
用来做……
v. 用勺舀
n. 勺子；球形勺；长柄勺
adj. 可调整的heel
battery
operate
battery-operate
slipper
heatn. （鞋、袜等的）后
跟；(足) 跟
n. 电池
v. 操作；作业
电池供电的
n. 拖鞋
v. 加热；使变热What are the Four Great Inventions
in ancient China?Do you know?paper-making
造纸术compass
指南针printing
印刷术 gunpowder
火 药造纸术印刷术inventionscarWhat’s this called in English?televisiontelephone
computercalculatormicrowave
ovenlight bulbbatteryLook at the things. In what order do you
think they were invented?A: I think the calculator was invented before the computer.
B: Well, I think the calculator was invented after the computer.The car was invented before the TV set.GameA: I think … was invented before …
B: Well, I think … was invented after ….The telephone was invented
before the TV set.A: I think … was invented before …
B: Well, I think … was invented after ….The telephone was invented before
the computer.A: I think … was invented before …
B: Well, I think … was invented after …. Look at the things. In what order do
you think they were invented?1a13425the right order they were inventedA: I think the calculator was invented
before the computer.
B: well, I think the calculator was
invented after the computer.Talk about with your partner. Listen and match the inventions with the dates. 1b___ 1876
___ 1885
___ 1927
___ 1971
___ 1976daecbEdison invented the light bulb.The light bulb was invented by Edison.Who was the light bulb
invented by?The telephone _____________by Bell.was invented Who was the telephone invented by?Bell invented the telephone._______was invented by _________.The carKarl BenzWho was the car invented by?Karl Benz invented the car.A: What is the car used for?
B: The car is used for
traveling. be used for 被用做于……A: What is the _______
used for?
B: I think it is used for
__________________.
(talk with people)talking with peopleAsk and answer in pairs.computerlight bulbtelephoneA: When was …invented?
B: It was invented in…
A: Who was it invented by?
B: It was invented by…
A: What is the … used for?
B: The … is used for doing… Sample dialogues:
A: When was the telephone invented?
B: I think it was invented in 1876.
A: When was the car invented?
B: I think it was invented in 1885. I
think it was invented after the
telephone.Pairwork1cWhen was the calculator invented?
What is it used for?
It is used for counting.What are they used for?They are used for giving light.light bulbsWhat is/are … used for?
It’s/They’re … used for…part 2Who were they invented by?
What are they used for?adjustable 可调整的operate 操作 heat 加热3122a Listen and number the inventions in the order that you hear them. Listen again and match the items with their inventors and uses.2bRole play the conversations using the information in the chart above.2cPairworkOral Practice Sentence pattern:
Who was it / were they invented by?
It was / They were invented by ...
What is it / are they used for?
It is / They are used for ...Language points It’s used for scooping really cold ice cream.
【经典习题】完成句子：
邮票是用来发送信件的。
Stamps are ____ ___ ______ letters.
【要点点拨】be used for doing sth. 表示“被用于干某事”，意思与be used to do sth.相同。
如：The camera is used for taking photos. = The camera is used to take photos. used for sending 【拓展延伸】
◆be used as sth. 表示“被用作某物”。如：English is used as the second language in many countries.
◆be used by sb. 表示“被某人使用”，后接动作的执行者。如：These textbooks are used by students.
◆be / get used to do sth. 表示“习惯于做某事”。如：She is used to running every morning.
◆used to do sth. 表示“过去常常做某事”。如：Miss Li used to dance after work. 1. The names of some inventions.2. 句型①When was...invented?
It was invented in ...
I think... was invented before / after ...
② Who was it / were they invented by?
It was / They were invented by ...
③ What is it / are they used for?
It is / They are used for ... Review课时重点回顾Quiz把下列句子改为被动语态。
1. They made these computers in Shenzhen.
These computers ____ _____ in
Shenzhen.
2. She bought a new bike yesterday.
A new bike ____ ______ by her
yesterday.were madewas bought3. The students clean the room every day.
The room ___ ______ by the students
every day.
4. He will sing a new song at the party.
A new song ____ __ _____ by him
at the party.
5. Students can’t take the books out of the
library.
The books ____ ___ _____ out of the
library by students.is cleanedwill be sungcan’t be taken中考真题链接1. — I feel very happy that I ____ to be the host.
— Congratulations! (07’ 江西)
A. choose B. am chosen
C. was chosen D. haven chosen
2. Today Chinese ________ by more and more people around the world. (07’北京)
A. was spoken?? B. is spoken?
C. spoke? D. speak 3． (07’重庆)?
— Your hometown has changed a lot．? — Yes. Take a look at these tall buildings.
They ______ last year．??? A. build? B. built??
C. was built? D. were built — Why is the classroom so dirty? — Sorry, sir. It _______ yesterday．
We forgot to do it． A. don’t clean? B. didn’t clean?
C. weren’t cleaned D. wasn’t cleanedPreviewTo preview the new words and expressions
To think of helpful inventions and annoying inventionsHomeworkDescribe one of your inventions
And then write it down.