课件44张PPT。Unit9 When was it invented?Section A Period 1v.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
n.（鞋袜等的）后跟；足跟
n.电池
v.操作；作业invent
calculator
be used for
scoop
adjustable
heel
battery
operate电池供电的
n. 拖鞋
v.加热；使变热
n. 电灯泡；电灯
电灯泡
n.微波
v.微波炉battery- operated
slipper
heat
bulb
light bulb
microwave
microwave ovenMuseumInvention MuseumGuessing: What is it?part 1Guessing: What is it?Microwave ovenIt is used for cooking and heating food(加热)It is used for ___________.talking with people(talk with people)What is it used for?telephoneIt is used for ___________.(study)studyingWhat is it used for?computerWhat is it used for?It is used for counting.calculator(count)What are they used for?They are used for giving light.light bulbs(give light)What is/are … used for?
It’s/They’re … used for…pairworklight bulbsWhen were the light bulbs invented? I think they were invented in1879.18761885192719711976 When was the car invented?
It was invented in 1885.What order do you think they were invented? Number them[1—5]123451aChinese inventionsFour great inventions in ancient China:
Paper-making(造纸术）
Compass（指南针）
Printing（印刷术）
Gunpowder（火药）
How many inventions do you know? Group work: Listen and match the inventions with the dates.abce1bExplanation年份的读法：两位在一起读。
eg. 1976
1900
2000
Read the following years
1745
1305
246 nineteen seventy-sixnineteen hundredtwo thousandseventeen forty-fivethirteen and fivetwo hundred and forty-sixTapescriptAlice: Life must have been difficult
when you were a kid.
Woman: Oh, not really. Why do you say that?
Alice: Well, you didn’t have many
modern inventions. Like, you
probably didn’t have a telephone,
right?
Woman: Of course we did! How old do you
think I am? the telephone was
invented in 1876.Alice: How about cars? I bet cars
weren’t invented yet.
Woman: Sure they were. Cars were
invented in 1885. My family had
a car. I think you need to take a
history class, Alice.
Alice: Ha, ha! Well ,did you have a TV?
Woman: No, We didn’t. The TV was
invented around 1927, I think.
Some friends of mine had one. But in those days, TVs were
really expensive, and we couldn’t
afford one.
Alice: And I bet you didn’t have
calculators and computers and
stuff. That’s something I do know.
We learned in school that
hand-held calculators were invented
in 1971 and personal computers
were invented in 1976. Woman: You are right. I didn’t have
those things when I was
young. But I do now!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.1c: Pair workC: 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.alarm clock It’s an annoying invention.
Because it wakes me up when I’m sleeping. I think computer is the most
helpful invention. Because it helps
me search the information that I
need. inventionshigh heelsadjustable heelsadjustable 可调整的inventionsice cream scoop
heat 加热scoopinventionsslippersa batterybatteriesoperate 操作battery-operated
slippersheated
ice cream scoopshoes with adjustable heels电池供电
的拖鞋加热的
冰激凌勺可调节
后跟的鞋Who were they invented by?
What are they used for?adjustable 可调整的operate 操作 heat 加热ListeningListen and number the
inventions in the order
that you hear.2a312Boy: What are those?
Girl: They’re battery-operated slippers.
Boy: What are they used for?
Girl: They’re used for seeing in the dark.
Boy: Oh, that’s cool! Who were they
invented by?
Girl: Julie Thompson. And look at this
heated ice cream scoop.
Boy: I know what it’s for! It’s used for
scooping out really cold ice cream. Tapescript
Girl: Right. It was invented by Chelsea
Lanmon.
Boy: My favorite are those shoes with
adjustable heels. You know- you
can move the heels up and down.
They were invented by Jayce
Coziar and Jamie Ellsworth.
Girl: And what are they used for?
Boy: Well, you can change the style of
your shoes. You can make the shoes
go from casual to dressy.shoes with adjustable heelsWhat are they?Who were they invented by?Jayce Coziar and
Jamie Ellsworthchanging the style of the shoes.What are they used for?Practice:battery-operated slippersJulie Thompsonseeing in the darkWhat are they?Who were they invented by?What are they used for?heated ice
cream scoopChelsea Lanmonscooping cold ice creamWhat is it?Who was it invented by?What is it used for?music candleactivity glassestemperature cupChallenge: Try to be an inventor!Homework:
Describe one of your inventions
And then write it down. GoodBye!
