高中英语 Unit 4 Earthquakes2教案 新人教版必修1

用心 爱心 专心1 Unit4Unit4 EarthquakesEarthquakes TheThe FirstFirst PeriodPeriod LeadingLeading in in WarmingWarming upup 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 what is it What will happen Today we ll 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 Drought Various answers are possible Students should 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 用心 爱心 专心2 Then show the film to the students film about the 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 sometimes the whole villages or cities are destroyed Some villages even disappear completely Step Talking T 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 the students they are today s 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 today s San Francisco and then let them know what happened in San Francisco in 1906 From the picture 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 in 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 I ll ask some of you to say out your opinion After the terrible quake everything 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 let s see a film Let the students see a film about Tangshan Earthquake film T After the earthquake the city 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 road The police and the volunteers The people Tangshan Earthquake happened on July 28 1976 It was the greatest earthquake of the 20th century in China Before the earthquake many strange things happened but people thought little of them Such a great number of people died 用心 爱心 专心3 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 almost 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 down onto hurt destroy homeless die Step Pre reading T 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 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 is possible for earthquakes to happen In these areas we can build strong houses to fight against earthquakes Discussion Activities 1 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 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 Step Discussion Activities T What do you think may happen before an earthquake Before an earthquake animals will become nervous Cow pigs horses and dogs will be upset And people can see mice running