| Unit4 EarthquakesThe First Period 说课(新课标版英语高一) |
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Unit4 Earthquakes The First Period ●从容说课 This is the first period of this unit.It includes Warming-up，Discussion，New words and Listening.In this period，students should get the first impression of earthquakes，including the phenomena before an earthquake，the cause of an earthquake，the ways to reduce the damage and so on. In Warming-up，students first discuss what would happen during an earthquake.Then discuss some other natural disasters，such as hurricanes，tornadoes and typhoons.What are they and what would happen if these natural disasters occur？After these two steps，the students would have a general idea about natural disasters.This lays a foundation for the Reading passage.Also these two steps provide the students with enough chance to practice speaking.The teacher should stimulate the students to express themselves using English. Next the teacher will explain some new words and expressions that would appear in the Reading passage.After class students should use these words and expressions to make sentences.In this way，the teacher can check whether the students have mastered these words and expressions or not. Then in the Listening part，students will listen to the cause of an earthquake and the ways to reduce the damage.They should first make a judgment whether the statements are true or false.Then try to fill in a form.After finishing the tasks in the textbooks，the teacher can also ask the students to go online after class to look for more information about how to reduce the damage of an earthquake. ●三维目标 1.Knowledge： （1）Get a general idea of earthquakes and some other natural disasters. （2）Know the causes of an earthquake. 2.Ability： （1）Train the students’ speaking ability by describing，talking and discussion. （2）Train the students’ listening ability. （3）Train the students’ ability to use the Internet to search for some useful information. （4）Train the students’ ability to cooperate with others. 3.Emotion： （1）Know the damage that an earthquake and other natural disasters could bring about. （2）Know the ways to reduce the losses of an earthquake. ●教学重点 Train the students’ speaking ability by describing，talking and discussion. ●教学难点 Train the students’ listening ability. ●教具准备 （1）a tape recorder （2）a projector （3）the blackboard ●教学过程 Step 1 Greetings Teacher （T）：Good morning/afternoon，class! Students （Ss）：Good morning/afternoon，teacher. Step 2 Warming-up T：First，I want to ask you a question.Do you know what happened in the Indian Ocean at the end of last year？It shocked or we can say frightened the whole world. S1：Let me try.A terrible tsunami broke out there on 26th December.More than 200000 people were killed. T：Yes.It is said that it is the biggest in the four decades.A tsunami is an undersea earthquake.Then have you heard of any land earthquakes？ Ss：Yes. T：Would you please list some？ S2：We can often hear that earthquakes occur in Japan. S3：In 1906，an earthquake struck San Francisco，USA.About 700 people died in the earthquake and the fires.And as many as 250000 people lost homes. S4：And in 1989，another big earthquake hit San Francisco.About 100 people were killed.It was America’s second strongest earthquake. T：But do you know any famous earthquakes that happened in our country？ S5：Of course.The Tangshan Earthquake that happened in 1976.My father experienced it，and he often tells me about the deadliest earthquake. S6：If an earthquake happens，the whole city would collapse.The tall buildings might be destroyed.The roads，the railway tracks and so on would be destroyed.Bridges would fall down.Water pipes would be broken.Then people would face water problem. S7：In the 1989 earthquake in San Francisco，a wide and busy road which was built like a bridge over another road fell onto the one below.Many people were killed in their cars，and only a few lucky ones were not hurt. S8：If the earthquake comes at night，a large number of people would be killed or trapped in the houses. S9：Sometimes during the earthquake，big holes would appear in the earth. T：Yes.You did a very good job.You see，there are large quantities of tall buildings in San Francisco.No one can imagine what would happen if another big earthquake hit the city. Step 3 Discussion T：You know，an earthquake is one of the terrible natural disasters.Do you know any other natural disaster？And what will happen during the disasters？Discuss with your partner. （A few minutes later.） T：Now I’ll ask some of you to tell us the disasters you know. S1：Floods，hurricanes，tornadoes. S2：Typhoons，drought. T：Very good.What would happen in these disasters？ S3：In a flood，water will be everywhere.It would wash away many things.Many people would be drowned.People could go to stay on tall buildings or even the roofs. S4：If hurricane，typhoon or tornado occurs，there would be very strong winds.Things would be blown down.There would be a lot of traffic accidents.And the sailors on the sea would be in great danger. S5：During the drought，water is badly needed.The farmers would have no water to irrigate the crops in the fields. T：Next I will explain these disasters and meanwhile show you some pictures.A flood is the movement of water out of a river，lake or ocean onto land.It was reported that in 2004 at least 100 people were dead and 83 were missing after rainstorms caused landslides（山崩） and floods in Southwest of China.A hurricane is a strong storm with high winds and rain.The very center of the storm，called the eye，is calm.A tornado is a violently rotating（旋转的） column of air that forms at the bottom of a cloud and touches the ground.A Typhoon is an intense tropical weather system with a well-defined circulation and maximum sustained（持续不变的） winds of 74 miles per hour.In other parts of the world，they are known as hurricanes，tropical cyclones（龙卷风） and severe tropical cyclones.Drought refers to a period of time without rain that can damage crops such as wheat and corn. Step 4 New Words T：In this unit，you will read a passage about an earthquake.In the passage，you will meet a lot of new words and expressions.Now we’re going to learn them.First read the words and expressions from “shake” to “fresh” after me. T：Read these words and expressions by yourself.Meanwhile，please pay attention to their meanings. T：Now I will explain these words and expressions in English. 1.pipe：a thin metal piece that carries water 2.dam：a special wall that keeps water behind it 3.shocked：worried or frightened 4.injure：hurt 5.well：a deep place to store water to drink 6.canal：a very long water way for boats 7.ruin：the part of a building left after the rest has been damaged 8.a great number of：a lot of 9.at an end：finished；dead 10.bury：put something under the earth 11.rise：go up 12.rescue：help to get someone out of danger 13.steam：gas that hot water gives out Step 5 Listening T：Before we learn the passage about an earthquake，let’s first know why there are earthquakes in the world.So let’s do some listening on Page 62.Listen to the tape for the first time and try to get a general idea of the passage. S1：This passage is about the cause of earthquakes and how we can reduce losses from them. T：Very good.Listen to the tape for the second time and judge whether the statements in Part 1 are true or false. T：Let’s check the answers.Listen again and try to correct the statements that are false. T：Listen again and try to complete the table in Part 2.（Play the tape again if necessary.） （A few minutes later.） T：Let’s check the answers. Step 6 Homework 1.Use the following words and expressions to make sentences. shake，rise，crack，burst，at an end，right away，injure，ruin，survivor，useless，rescue，dig out，organize，shelter，fresh，bury，shock，destroy 2.Preview the reading passage on Page 26. ●板书设计 Unit 4 Earthquakes The First Period 一.Disasters：二.New Words and Expressions： tsunami pipe a great number of earthquake dam at an end flood shocked bury hurricane injure rise tornado well rescue typhooncanal steam drough truin ●活动与探究 Poster-making： 1.Divide the whole class in five groups. 2.Ask them to look for more ways of reducing losses from earthquakes.The students can go to the library or use the Internet to search for information.The following websites might be helpful. ①http：//earthquake.usgs.gov ②http：//www.eqnet.org/ ③http：//www.ceri.memphis.edu/ 3.After searching for the information，each group should make a poster，informing people how to reduce the losses of an earthquake. |
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