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Unit 13 Water Planet桂林七中 钟翌桂林七中 钟翌
Without you, I can’t grow greener.
Without you, I can’t bloom more beautiful.
Without you, I can’t swim happier.
Without you, I can’t travel everywhere.
Only YOU make these possible.
We Love You Forever!
Water
Do you know what will happen?
The properties of The properties of waterwater
Reading:Reading:
固体运动
容量密度 含盐量 氢气
氧气
原子分子特性property
molecule
atom
hydrogen
oxygen
salinity
capacity
density
solid
motion
Introduction Chemical Structure
Density Salinity
Heat Capacity Ocean Motion
Importance of water
Let ‘s read the text again.
How much do you know about
water according to the text?
You are You are excellent!excellent!
Supposed that our school is proposing an action in order to improve the sense of saving water and protecting water.
Do you have any good ideas to make this action carried out more
effectively?
What can you learn from this lesson?
We should remember: Nothing is as precious as a drop of rain.
The most important thing we learn about water is that we must protect it and use it wisely.
Cherish Life
Save Water
Begin from me!
Homework:
1.Review the properties of water .
2. Finish the exercise 1-2 on Page 21
So much for this lesson.