How clear! How clean the air is! How green! How dusty!

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Presentation transcript:

How clear!

How clean the air is!

How green!

How dusty!

How muddy!

How poor!

 Why does the air become dusty? Why does the water become muddy? What do the trees die? Why do heavy sand-dust storms, which severely affect our work, daily life and health, frequently happen in China? What can we do to stop them? What can we do to protect our environment? By learning this unit, we will get the answers. Let’s go!

Terrible sand- dust storms are caused by soil erosion. Soil erosion can also bring about many problems.

I can’t breathe! I can’t see clearly! Traffic accident may happen!

Soil Erosions Are Very Very Serious!

Soil Erosions Are Serious in China

More than ¼ of China are eroded Where will our home be?

Soil Erosions Are Serious in China

1. What harms can soil erosion cause? 2. What can we do to stop soil erosion? 3. What can we do to protect our environment?