Unit 9 When was it invented?（Section A Period 1）

课件47张PPT。Unit 9When was it invented?Section A Period 1 Four ancient inventionscompassgun powderMoveable type printingpapercalculatorinventionsmicrowave ovenabacusbinocularslight bulbsA: When was the car invented?
B: Well, I think it was invented in ….Guess1885
1876
1927
1971A: When was the telephone invented?
B: Well, I think it was invented in ….Guess1885
1876
1927
1971Look at the things. In what order do you think they were invented?1aGroupworkA: I think the calculator was invented before the computer.
B: Well, I think the calculator was invented after the computer.light bulbWhen were they invented?What is it called?bikemicrowave oven alarm clockListening (1b: P68)1876年 Listen and give the dates.1885年1927年1971年1976年Pairwork (1c:P68)Student A, cover the dates. Student B, ask student A when the things in the picture above were invented. Then change roles and practice again.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 1930. I
think it was invented after the
telephone.C: I don’t think so. I think it was
invented in 1873, so it was invented
before the telephone.D: I don’t agree. I think it was invented
in 1885 and it was invented after the
telephone.Listening (2a, 2b: P69)312Listen and number the inventions in the order that you hear them.312high heelsadjustable heelsadjustable adj. 可调整的ice cream scoop
heat 加热scoopslippersa batterybatteriesoperate v. 操作2b. Listen again. Match the inventions with their inventors and uses.Oral Practice (2c: P69) Sentence pattern:
What is it / are they used for?
Who was it / were they invented by?
It is / They are used for doing...
It was / They were invented by ...Role play conversations using the information below.A: When was the _______
invented?
B: I think it was invented in
______.197618851876192719711879Sample dialogues:
A: What is this?
B: This is a heated ice cream scoop.
A: What is it used for?
B: It is used for scooping really cold ice
cream.
A: Who was it invented by?
B: It was invented by Chelsea Lanmon.Edison 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. A: What is the _______ used for?
B: I think it is used for _________________.talking with peopleA: What is the used for?
B: I think it is used for _______. (count)countingA: What is the
used for?
B: It is used for ______.(count)countingA: What is the
used for?
B: I think it is used for ______.(work)workingA: What is the
used for?
B: I think it is used for _____.(ride)ridingA: 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… pairworkGrammar Focus (P69) The passive voice 被动语态
在被动语态的句子中, 谓语部分的结构是be + 过去分词。被动语态的句子的时态变化反映在be动词上。也就是说, 把一个句子做成被动语态的句子, 只需要写出be动词的所需时态, 再加上所给动词的过去分词就行了。当然, 这只是指谓语部分而言。我们知道, be动词作为一个独立的谓语动词有自己现在分词(being)和过去分词 (been)。那么, 下面我们来看看be 在各种时态中的变化形式：一般现在时 am / is / are 一般过去时 was / were 一般将来时 shall / will + be 过去将来时 would / should + be 现在进行时 am / is / are + being 过去进行时 was / were + being 现在完成时 have / has + been 过去完成时 had + been 1. 世界上许多国家都讲英文。
English is spoken in many countries
all over the world. 　　 　
2. 纸是中国发明的。
Paper was invented in China.
3. 这栋大楼是去年建造的。
The building was built last year.Make sentences4. 他父亲不会让他娶玛丽为妻的。
He won’t be allowed, by his father,
to marry Mary.
5. 他们结束训练时将被派往部队。
They would be sent to the army
when they finished the training. 　6. 这个计划正在执行中。
The project is being carried out. 　　8. 这本小说已被译成了几种语言。
This novel has been translated into
several languages. 7. 那时这案子正在调查中。
The case was being investigated then. 9. 他们说生产成本已经下降了。
They said that production costs had been reduced.be used for doing sth. 意思是“被用来做某事”，强调用途或作用。
练习：Sunglasses are used ________ protecting
your eyes in sunny days.
A. for B. to
C. with D. in
[答案和解析] A。be used for doing sth.
意为“被用来做某事”。Ⅰ. 根据汉语提示完成英语句子，每空一词。
(1) 伞是用来遮雨的。
The umbrella is used ____ ______ yourself from rain.
(2) 我习惯于吃比萨。
I ___ ____ __ _____ pizza.
(3) 我过去常常在放学后跳舞。
I ____ ___ ____ after school.for keepingam used to eatingused to dancePracticeⅡ. 根据句意, 用介词as, by完成下面句子。
(1) English is used ______ the second language in many countries.
(2) These textbooks are used __ students.asbyReview the Grammar Focus.Homework Thank You！