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.