Introduction-2. Answering (5m) Answer the questions with the help from Activity 2, Page31.

1.Where do sandstorms begin? 2. What causes deserts? 3. How does the sandstorm affect different places? 4. What differences between sandstorms in different areas?

Sandstorms begin in desert areas.

Deserts are created by climate changes. And it is also because people cut down trees and dig up grass.

Sandstorms from Asia have blown across the Pacific Ocean to America.

The inland region has more sandstorms than the one near the sea.