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Unit 4 Earthquakes.

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Presentation on theme: "Unit 4 Earthquakes."— Presentation transcript:

1 Unit 4 Earthquakes

2 Unit 4 Warming up & Pre-reading Earthquakes

3 Free talk: Have you ever experienced any natural disasters? Can you tell some kind of natural disasters? volcano(火山) sandstorm (沙尘暴)

4 drought(旱灾) tsunami (海啸) Can you describe how terrible an earthquake is?

5 Look at the pictures of Tangshan and San Francisco, describe what you see in the pictures.
(beautiful cities; broad roads; tall buildings; large population) Qs: What will happen if there has been a big earthquake in these two cities?

6 Tangshan, Hebei July 28th, 1976

7 5:13 a.m. April 18th,1906, San Francisco

8 Presentation: As we know, earthquakes are disasters to everyone.
But can we avoid or minimize (减少)the loss caused by earthquake? How can we foretell earthquakes? Now let’s see what may happen before an earthquake comes.

9 Discussion: (competition)
Please look at the pictures on Pre-reading and try to mention the signs of an earthquake.

10 There will be bright light in the sky;
Cows, dogs and pigs become too nervous to eat; Mice run out of the fields looking for places to hide. The water in the wells will rise and fall. Walls of wells will have deep cracks.

11 Discussion: (Competition)
Imagine there is an earthquake now, your home begins to shake and you must leave it right away. You have time to take only one thing. What will you take? Why?

12 You will take: What will you take with you? personal washing things
torch (手电筒) food and sweets You will take: blanket (毯子) money mobile phone a bottle of water medicine

13 HOMEWORK : How can we reduce the damage of earthquakes? Prepare for reading.


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