(共7张PPT)
The earth is like our mother.
Give life
Provide air, food, water…
Sometimes bring disasters
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Unit 4 Earthquake
Listening Practice
Daily report
typhoon
sandstorm
tornado
tsunami
earthquake
volcano
mudflow
tornado
flood
thunder
storm
tsunami
volcano
mudflow
typhoon
earthquake
sandstorm
Natural
disasters
Which of these do you think can cause the greatest destruction
What is the disaster mentioned in the video
What can you see in the video
The earthquake,_______, unexpected, terrifying. No other force of nature can produce __________ like this. No other force ____so many. When it strikes, there is ________to go. We can try to prepare ourselves, but the real thing is deadly. We can only hope we ________the most destructive force on our raging planet.
sudden
destruction
kills
nowhere
survive
*Do you know any of the earthquakes that cause great destruction
1976 Tangshan earthquake:
Destroyed the whole city
1906 The San Francisco earthquake:
Damage estimated topped $350,000,000
* Why do earthquakes happen
True or False
It is believed that on the surface of the earth are a number of plates.
The plates are always moving.
If the plates stop moving, there is an earthquake.
If the plates move, there is an earthquake.
Wherever you live, you are in an earthquake area.
China has two plates pushing on her and they make mountains and earthquakes.
( move, meet, push against, jump )
( several )
( No matter where )
Pacific plate
American
plate
Eurasian plate
India plate
African
plate
Antarctic plate
Why do California, China and Japan have a lot of earthquakes
They are placed in areas where different plates meet.
Because of the movements of the plates, earthquakes happen.
First, it is not a good idea to build___________ ______________________________.
Second, if you think there may be an earthquake, make sure to build_____________ __________________.
Third, you must make the houses____________ _______.Weak buildings will_______________ __________, but strong ones _____________.
What can we do to make sure that earthquakes do not destroy whole cities
★
★
houses along the line where two plates meet
houses on rock rather than sand
may stay up
as strong as
possible
earthquake
fall down in an
Discussion
When an earthquake happen, what should we do if we are in the room
What should we do
(three key words)
Drop
Cover
Hold
Drop to the floor.
Cover our heads with our hands. Cover ourselves by hiding under some furniture.
Hold onto the furniture so it doesn't move away from us.
Drop to the floor.
Cover our heads with our hands. Cover ourselves by hiding under some furniture.
Hold onto the furniture so it doesn't move away from us.
What do you know about earthquake
Part 1 destruction
Part 2
cause
move, meet, push against
Part 3
What to do
drop, cover, hold
terrifying, kill so many, most destructive
Homework
Suppose the earth begins to shake what will you do to protect yourself
What do you know about earthquake Write a short passage.
