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1、人教版高一必修人教版高一必修 1 Unit4 Earthquakes 教案教案Unit4 EarthquakesThe First Period Leading in, Warming up the nose when planes take off; the sound of trains; the sound of thunder.)But did you once hear the sound that the heaven falls and the earth crack. In Chinese it is 天崩地裂？If there is a sound like this wha
2、t is it? What will happen?Today well learn something about earthquakes. Can you imagine how terrible it is? First let the students answer the following question.Which of the following may cause people the greatest damage?Earthquake, Typhoon, Flood, DroughtVarious answers are possible. Students shoul
3、d give reasons to support their answers. All of them are natural disasters, they have something in common, at the same time, they have many differences.Let the students know something about the earthquake. (slides)T: How does the earthquake occur?Then show the film to the students. ( film about the
4、earthquake )T: When some plates of the earth move suddenly, an earthquake happens. Many earthquakes begin under the sea. In fact, earthquakes may happen near high mountains.During an earthquake, the shaking make rocks rise suddenly and even cracks open. Houses fall, people are killed or hurt, and so
5、metimes the whole villages or cities are destroyed. Some villages even disappear completely.Step . TalkingT: Earthquakes are disasters to everybody. Now look at the two pictures of Tang Shan and San Francisco. Can you describe what you see in the pictures?(Show two pictures to the students and tell
6、the students they are todays Tangshan and San Francisco. But many years ago some big earthquakes hit these two beautiful cities.)1. Show the pictures of San Francisco to the students and let them describe todays San Francisco and then let them know what happened in San Francisco in 1906(From the pic
7、ture of San Francisco, we can see it is a very big city. There are many tall buildings thickly standing on the earth. And the population of the city is very large.)2. Show the pictures of Tangshan to the students and let them describe today Tangshan and then let them know what happened in Tangshan i
8、n 1976.( Today Tangshan is a beautiful city. It has beautiful gardens, broad roads and some tall buildings.)T: But, what will happen if there has been a big earthquake in these two cities? Work in groups and discuss it. Then Ill ask some of you to say out your opinion. ( After the terrible quake, ev
9、erything is destroyed, what we can see is fallen buildings and dead bodies. The policemen, the soldiers and some other volunteers are rescuing the people trapped in the ruins.)T: Right, now lets see a film.(Let the students see a film about Tangshan Earthquake.) (film)T: After the earthquake the cit
10、y of Tangshan became.Let the students discuss what they saw. And then talk about the pictures in their own words.The house.The fire.The bridge.The roadThe police and the volunteers.The people.( Tangshan Earthquake happened on July 28, 1976.It was the greatest earthquake of the 20th century in China.
11、 Before the earthquake, many strange things happened, but people thought little of them. Such a great number of people died during the earthquake, because the quake happened while they were sleeping. The number of people who were killed or injured reached more than 400,000. And all the traffic was a
12、lmost destroyed after the quake. Thousands of thousands of people became homeless in a short time. Many soldiers were sent to Tangshan to rescue the survivors after the earthquake.Let the students talk about the damage caused by earthquakes Using the following words and phrases:shake, break, fall do
13、wn onto, hurt, destroy, homeless, die.Step . Pre-readingT: But we can avoid or at least reduce the loss caused by earthquakes. And we can foretell it.Do you know what would happen before an earthquake? Can we do something to keep ourselves safe from earthquakes? ( 1. There is often a great sound.2.
14、Animals may be too nervous to eat.3. Maybe there are bright lights in the sky.4. a smelly gas may come out of the well.5. In the city the water pipes in some buildings crack and burst.6. Scientists have studied earthquakes and make maps that show the “ earthquake belts”. In areas in these belts, it
15、is possible for earthquakes to happen. In these areas we can build strong houses to fight against earthquakes.)Discussion & Activities1. Show some pictures to the students and let them discuss.Let the students look at them and decide what situation may happen before an earthquake.2. Then fill in the
16、 missing words according to the pictures. a. The water in the wells _ and_. And some deep _could be seen in the well walls. A _gas came out the cracks.b. Mice ran out the Fields _places to hide. Fish _out of bows and ponds.c. The chickens and even pigs were _ nervous _eat. The dog was _ loudly again and again.d. People could see _lights in the sky.3. Let the students discuss if they have ever experienced an earthquake
