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04
Text learning
02
Cooperation
03
Assignment
05
Lead-in
01
Look at this beautiful earth.
What can we see from the video?
lead-in
What is the problem the earth faces?
7 billion
8 billion
9 billion
2010
2025
2050
Text learning
People can’t live everywhere on the earth.
71%
29%
Text learning
How many continents and Oceans does the world have?
Can you point them out?
Cooperation
Asia
Africa
South