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oil
Protect the Earth
Q: How to protect the Earth?
如何保护地球？
Watch and answer
/ei/
/e/
/?/
/?/
Save water
Save energy
Save trees
Don’t use too much plastic
Save water
Save water
Listen and answer
Why should we save water?
How to save water?
Tip: 带着问题听读课文，可以提高阅读效率。
Water is useful.
Save water
Why？
We use water to ...
water flowers
wash clothes
wash hands
clean the floor
...
useful
Water is useful.