外研英语必修3 Module 4Sandstorms in Asia reading （共20张PPT）

(共20张PPT)
Natural Disasters
tornado
hurricane
earthquake
Review:
Can you name
the following


in English?
flood
What natural disaster is it?
It is a __________. It is very __________.
sandstorm
frightening
Where terrible sandstorms happen, there will be an orange sky, strong winds and thick brown-yellow dust, causing traffic to move slowly and making it difficult to see and breathe.
Module 4 Sandstorms in Asia
What are the four main places where there are sandstorms in the world and find them out on the map.

How did Ren Jianbo describe a terrible sandstorm he had experienced?

North America
Central Africa
Australia
Central Asia
What are the four main places where there are sandstorms in the world and find them out on the map.
How did Ren Jianbo describe a terrible sandstorm he had experienced?
1. What are sandstorms?
2. Where do sandstorms occur often?
3. Why have sandstorms increased in China?
4. Who appear in this text?
5. When sandstorms happen, what the weather look like?
6.How can the sandstorms be prevented?
Sandstorms are strong, dry winds that carry sand.
Central Asia, North America, Central Africa and Australia.
Sandstorms appear to have increased in recent years as a
result of desertification.
Ren Jianbo and HuangXiao mei.
We will see an orange sky and strong winds that cover
the city in a thick, brown-yellow dust.
A mass campaign has been started to help solve it and
the government is planting trees.
This is a process that happens when land becomes desert because of climate changes and because people cut down trees and dig up grass.
沙漠化是由于气候改变或者人类砍伐树木、铲除草皮而使陆地变成沙漠的一个过程。
cut down trees
nothing to hold..
soil be blown away
soil be washed away
nothing to hold..
cut down trees
soil be blown away
soil be washed away
too many sheep and cattle
all the grass be eaten up
grass never grow again ; the land become desert
overgraze过度放牧
What measures should we take to prevent sandstorms coming?
Summary:
1. We should plant more trees and grow
more grass.
2. We should fight desertification by improving farming methods.
3. Build green fences along the desert.
4. Forecast sandstorm’s real time to
prevent disaster.
5. Control air and water pollution.
6. Establish sandstorm data bank and
collect information about sandstorms.
7. All countries should join hands to
make a plan in sandstorms
control and prevention.
Sandstorms begin in _____ _____. Sandstorms ______ ___have
increased ___ ___ _____ ___ desertification, which happens when
land becomes desert _______ ___ climate changes and because people____ ____ trees and ___ ___ grass.
Ren Jianbo described a _______ sandstorm he __________ : “It was the most __________and the most_________ situation.” Huang Xiaomwei says,“__ __ ______ in a sand storm is __________. It is difficult to ______ in the strong wind.” Citizens ____ ___ to an _____ sky and strong winds that _____ the city in a ____, ___________ dust. In that situation, traffic _____ ____ ______because the thick dust ______ ___ _______to see. Weather experts _______ people ___ __ go out when a sandstorm arrives. If you want to go out, you ______ _____ _____ a mask.
Scientist have _____ _____ ______to ____ the problem and a _____
________ has been started. To _______ it _______ nearer, the government is planting trees and plans to _______ planting for the next five years.

desert
areas
appear
to
as
a
result
of
because
of
cut
down
dig
up
terrible
experienced
frightening
dangerous
To
be
cycling
frightening
breathe
wake
up
orange
cover
thick
brown-yellow
moves
very
slowly
makes
it
difficult
advise
not
to
would
better
wear
tried
many
ways
solve
mass
campaign
prevent
coming
continue
Homework:
Write a short passage to describe sandstorms, including definition, causes and effects.