Unit 4 Earthquakes Warming up and reading

naturaldisasters What natural disasters do you know?

Yushu Earthquake

The Great East Japan Earthquake

Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake.

Did you hear about Tangshan Earthquake? When did it happen? The Tangshan Earthquake was a natural disaster that occurred on July 28, It is believed to be the largest earthquake of the 20 th century by death toll.

The number of deaths was around 240,000 to 255,000. A further 164,000 people were recorded as being severely injured.

Aftershock

Can you tell me anything about San Francisco? the fourth most populous city in California and the 13 th most populous city in the U.S.A

Can you imagine what the city of San Francisco was like after the earthquake? It happened on April 18, The earthquake and resulting fire are remembered as one of the worst natural disasters in the history of the United States.

Some big earthquakes in recent years The big earthquake in Pakistan and India in The big earthquake in Wenchuan, Sichuan Province in The Haiti Earthquake happened in January The Yushu Earthquake in Qinhai Province in April The Great East Japan Earthquake occurred on 11 March 2011.

What does the sentence “It’s always quiet before a storm” mean? What do you think will happen before an earthquake?

1) Bright light flashes in the sky. 2) The well has deep cracks in it, and the water in it rises and falls. 3) Chickens are flying and dogs are barking, and pigs and cows are too nervous to eat. 4) Fish jump out of the pond, and mice run wildly out of the fields. Signs before an earthquake (p. 25)

Imagine your home begins to shake you must leave it right away. You have time to take only one thing before an earthquake, what will you? Why?

Fast reading Read the text and find answers to the following questions.

When and where were the strange things happening? What were they?

Read the passage and find out the topic sentence of each paragraph. ParagraphTopic sentence Strange things were happening in the countryside of northeast Hebei. Everything began to shake. It seemed as if the world was at an end. Everywhere they looked nearly everything was destroyed. All hope was not lost.

Join the correct parts of the sentences. 1. The chickens didn’t eat because 2. The people didn’t worry because 3. Such a great number of people died because 4. Water was needed because 5. The people did not lose hope because A. the army came to help them. B. the quake happened while they were sleeping. C. they were nervous. D. dams and wells were useless. E. they didn’t know what the strange events meant.

Detailed reading How many parts can this passage be divided into?

Three parts Do you know the main idea of each part? Part 1 Paragragh1 Part 2 Paragraph 2 、 3 Part 3 Paragraph 4

The main idea of each part Part 1.(Para.1) Before the earthquake Part 2.(Para.2,3) During the earthquake Part 3.(Para.4) After the earthquake Something strange happened in Tangshan the destroy of the earthquake in Tangshan the rescue of Tangshan

Number each of these things during the Tangshan earthquake. _____ Brick buildings were destroyed. _____ The walls of the village wells had cracks in them. _____ Shelters were put up for those with no homes. ______ Roads got huge cracks. _____ The army helped the survivors

True or false 1. People in Tangshan were warned of the earthquake and didn’t go to bed that night. 2. People in Beijing also felt the earthquake. 3. More than 400,000 people were killed in the quake. 4. Many rescue workers and doctors were trapped under the ruins during the aftershock. 5. People tried to get fresh water from under the ground. F T F T F

What shall we do if an earthquake happens? 1. Get under a heavy table or desk and hold on, or sit or stand against an inside wall. 2. Keep away from windows. 3. If indoors, stay indoors. 4. If outdoors, stay away from falling debris, trees and power lines. 5. If in a car, stay in the car. 6. Many injuries occur when people act on their impulse to run. Discussion

Can we stop earthquakes? We can’t stop earthquakes, but we can try to reduce the losses caused by earthquakes. What can we do after earthquakes? To build houses as strong as possible; To build houses on rock rather than on sand. Try to rescue people; Try to rebuild families; Try to forget sad experiences and live with strong belief.

Tangshan’s new look

1.Look for some earthquake information about Japan. Find out why Japan often has many earthquakes. What measures are taken by the Japanese government to prevent them? 2.Review the text and find words or expressions that are difficult for you.

We’re the world 25 for Haiti A song