Unit 4 Topic 1 When was it invented Section B课件(共16张PPT)

(共16张PPT)
Unit 4 Topic 1
When was it invented
Section B
Master the following words ,phrases and sentences:
Words：bulb, airplane, hard-wearing, Korea
Phrases: be used by, more than, be different from
Sentences：It's said that he invented more than two thousand things during his life.
Talk about the inventors of some great inventions.
01
学习目标
invent /America/in 1946
A: Where were computers invented
B: They were invented in America.
A: When were computers invented
B: They were invented in 1946.
Look and talk about the picture.
02
新课讲授
MP3 player
1998
Korea
listen to music
mobile phone
1973
America
communicate easily
Please choose one to talk about.
digital camera
1975
America
take photos
A:What’s this
B:It’s …
A:When was it invented
B: It was invented in …
A: Who invented it
B:…
1b Listen to 1a and choose the correct answers.
( ) 1. Where are Michael and Jane
A. In the science museum.
B. At the school library.
C. In the zoo.
D. In the park.
( ) 2. Which object is not mentioned in
the conversation
A. Light bulb. B. Airplane.
C. Television. D. Radio.
A
C
1a Look, listen and say.
When was it invented
Who invented it
Look, a light bulb!
In 1897,
Thomas Edison.
In 1895 in 1903 in 1879
Can you match them
1c Read 1a and complete the table.
Invention Inventor Year
light bulb
Guglielmo Marconi
1903
radio
airplane
Thomas
Edison
Wilbur and
Orville Wright
1879
1895
1d Discuss with your classmates the inventions listed in 1c.
Let them guess which invention you are describing.
You may begin like this:
It is widely used by people everywhere. It was invented in 1879 by Thomas Edison. It’s said that…
Group work
A: What are these
B:…
A: When were they produced first
B:…
A: What were they made of
B:…
Do you know
2 Fill in the blanks with the proper forms of the given words.
The first jeans were produced in 1855. At that time, they ______________(not call) jeans and they were just hard-wearing pants designed for workers. The pants __________ (make) of the brown cloth. This kind of cloth ____ usually ______(use) for making tents. Nowadays, their materials have been changed so that it feels more comfortable. And many different jeans styles ____ also ________(create). They ____________(design) not only for workers but also for teenagers and women. Later jeans are popular all over the world.
were not called
were made
was
used
are
created
are designed
A. Karl Benz
C. Alexander Graham Bell
B. John Baird
Invention
Inventor
Year
a.1926
b.1876
c.1885
3 Listen to the three passages. Match the pictures with
the following information.
4a Read the following words. Listen and check the vowels.
rocket cotton hospital model
satellite camera laptop plastic
4b Listen and read the following sentences aloud, paying attention to the stress and intonation. Then use the words in 4a to make up similar conversations.
A: `When was the `digital camera `developed
B: It was `developed in the `1970s.
A: Is the `digital camera `developed in `Korea
B: `No.
A: `Where was it `developed
B: It was `developed in `Japan.
Homework
1. Memorize the useful expressions and key sentences which we learn today.
2. Preview Unit 4 Topic 1 Section C.