Unit 9 When was it invented?>Section A1a-2b

课件31张PPT。Section A Warren
四河初中Unit9 When was it invented?MuseumInvention MuseumHow much is it?18How much is it?Rule Only one group that gets the most
scores(分数)can enter the museum.
Guessing: What is it?part 1Guessing: What is it?Guessing: What is it?Microwave ovenIt is used for cooking and heating food(加热)What food can be heated in it?What is it used for?It is used for counting.calculatorWhat are they used for?They are used for giving light.light bulbsWhat is/are … used for?
It’s/They’re … used for…part 2alarm 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. part 3A survey:
What do you think is the most
helpful/annoying inventions?Useful expressions:
A: What do you think is the most
helpful/annoying invention?
B: I think the most helpful invention
is…
A: Why is that?
B: Well, it gives/helps people…Henry Ford
Edison
Bell
Ts’ai Lun
Wright brothers
fisherinventorsinventionsPapermaking
Plane
Washing machine
Light bulb
Car
Telephone19761971197619271885When was it invented?1bListen and match the inventions
with the dates.abedc1876
1885
1927
1971
1976dabec18761885192719711976part 5 When was the car invented?
It was invented in 1885.Chinese inventionsHow many inventions do you know? Group work: 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2aListen and number the inventions in
the order that you hear.312
2b Listen again. Match the inventions with their inventors and uses.Invention
shoes with adjustable heels
battery-operated slippers
heated ice cream scoopWho was it/ were they invented by?
Chelsea Lanmon
Jayce Coziar and Jamie Ellsworth
Julie Thompson
What is it/ are they used for?
scooping really cold ice cream
seeing in the dark
changing the style of the shoesmusic candleactivity glassestemperature cupChallenge: Try to be an inventor!Welcome !The passive voice.被动语态被动语态的构成:be动词+ (及物动词的) 过去分词 一般现在时一般过去时Homework:
Describe one of your inventions
And then write it down. GoodBye!