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必修3《Reading and vocabulary》最新PPT课件优质课下载
lasted
frightening
blowing
buried
1. Where do sandstorms begin?
2. What causes deserts?
Sandstorms begin in desert areas.
Deserts are created by climate changes. And it is also because people cut down trees and dig up grass.
Introduction-2. Answer the questions with the help
from Activity 2, Page 31.
3. How does the sandstorm affect different
places?
Sandstorms from Asia have blown across
the Pacific Ocean to America.
4. What differences between sandstorms in
different areas?
The inland region has more sandstorms
than the one near the sea.
Introduction-3.Work in pairs. Discuss these
questions
What should you do in a sand storm to protect
yourself?
2. Which do you think is more dangerous, an
earthquake or a sandstorm?
Where in China do sandstorms begin?