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保护
Think and say
What do you know about the Earth?
5. We can talk about protecting the Earth.
Green Guards Needed
招募环保小卫士
2. We know the use of them.
3. We know the problems of them.
4. We know the solutions(解决方法) of the problems.
1. We know how to protect the Earth from some parts.
4
2
3
1
Can you give titles(标题) to the pictures?
Look and say
4
2
3
1
Read and find out the four titles(标题).
Skim and say
Save water
Save energy
Save trees
Don’t use too much plastic
节约
能源
塑料
5. We can talk about protecting the Earth.