Earthquakes课件17.ppt

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1、Unit 4 Earthquakeson Page 62Read the statements in Exercise 1 and predict the content of listening.Listen to the tape for the first time and check your predicted answers.Listen to the tape again and tell whether they are true or false.1. It is believed that on the surface of the earth are a number o

2、f plates.2. The plates are always moving.3. If the plates stop moving, there is an earthquake.4. If the plates move, there is an earthquake.5. Wherever you live, you are in an earthquake area.6. China has two plates pushing on her and they make mountains and earthquakes.Listen to Part 1 and answer t

3、hese questions.1 Why do earthquakes happen?Earthquakes happen when twomoving plates jump and push against each other.2 Why do California, China and Japan have a lot of earthquakes?California, Japan and China have a lot of earthquakes because they are placed in areas where different plates meet.1 Do not build _.2 Make sure you build _.houses along a line where two plates meethouses on rock rather than on sandListen to Part 2 and complete the sentences.3 You must _._ buildings will fall down and_ ones may _. Weak strong stay upmake the houses as strong as possible

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