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A: What are they used for?
B: They studying, working and playing.
Look and talk about the picture.
were invented
were invented
are used for
MP3 player
1998
Korea
listen to music
Ask and answer.
A: When was … invented?
B: It was invented in ….
A: Where was it invented?
B: It was invented in ….
A: What is it used for?
B: It is used for ….
mobile phone
1973
America
communicate easily
digital camera
1975
America
take photos
Please choose one to talk about.
Say the name of the invention quickly
bulb
n.电灯泡
Listen to 1a and choose the correct answers.