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2019-2020年高中英語優(yōu)秀教案：Unit4 Earthquakes period 1優(yōu)秀教案 新人教版必修1 ●從容說課 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. This period lays emphasis on speaking and listening.The teacher should try his or her best to encourage the students to say something.Don’t always correct the mistakes that the students would make while speaking.Otherwise，the students would feel reluctant to speak out their opinions. ●三維目標(biāo) 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. ●教學(xué)重點(diǎn) Train the students’ speaking ability by describing，talking and discussion. ●教學(xué)難點(diǎn) Train the students’ listening ability. ●教具準(zhǔn)備 （1）a tape recorder （2）a projector （3）the blackboard ●教學(xué)過程 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 xx00 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. T：Can you tell me what might happen in an earthquake？You may look at the two pictures on Page 25. 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 es 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 xx 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（旋轉(zhuǎn)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（持續(xù)不變的） winds of 74 miles per hour.In other parts of the world，they are known as hurricanes，tropical cyclones（龍卷風(fēng)） 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 plete 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. ●板書設(shè)計(jì) 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 ●活動(dòng)與探究 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：//eqnet.org/ ③http：//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. ●備課資料 Why do Earthquakes Happen？ Scientists explain that the outside of the earth is made of a number of different plates.For example，at San Francisco the Pacific plate which is moving towards the northwest meets the North American plate.The Pacific plate is moving very slowly—at 5.3 centimeters a year.Sometimes these two plates stop and do not move for years.Then suddenly，they jump and an earthquake is felt.As a result of the movement of these plates，west America near the sea has always been a bad place for earthquake.When the 1906 earthquake happened，the Pacific plate jumped 5-6 meters to the north. We cannot stop earthquakes，but we can do things to make sure they do not destroy whole cities.First，it is not a good idea to build houses along the lines where two of the earth’s plates join together.Second，if you think there may be an earthquake，it is better to build houses on rock not on sand.Third，you must make the houses as strong as possible.Weak buildings will fall down in an earthquake，but strong ones may stay up. How Can We Reduce the Losses of an Earthquake？ BEFORE THE EARTHQUAKE STRIKES Develop an earthquake-specific family plan. If you are at risk from earthquakes： Pick “safe places” in each room of your home.A safe place could be under a sturdy table or desk or against an interior wall away from windows，bookcases，or tall furniture that could fall on you.Also pick safe places in your office，school and other buildings you are frequently in. Practice drop，cover，and hold-on in each safe place twice a year.Drop under a sturdy desk or table and hold on to one leg of the table or desk.Protect your eyes by keeping your head down. Wait in your safe place until the shaking stops，then check to see if you are hurt，then check the people around you.Be on the lookout for fires.Fire is the most mon earthquake-related hazard. If you must leave a building after the shaking stops，use the stairs，not the elevator. If you’re outside in an earthquake，stay outside.Move away from buildings，trees，streetlights，and power lines. Everyone in your home should know what to do if an earthquake occurs. Get training.Take a first aid class and get training on how to use a fire extinguisher（滅火器）. Talk with your insurance agent.Study locations of active faults，and if you are at risk，consider purchasing earthquake insurance. DURING AN EARTHQUAKE Drop，cover，and hold on! Move only a few steps to a nearby safe place. If you are in bed，hold on and stay there，protecting your head with a pillow. If you are outdoors，find a clear spot away from buildings，trees，streetlights，and power lines.Drop to the ground and stay there until the shaking stops. If you are in a vehicle，pull over to a clear location，stop and stay there with your seatbelt fastened until the shaking has stopped.Once the shaking has stopped，proceed with caution.Avoid bridges or ramps that might have been damaged by the quake. Stay away from windows. In a high-rise building，check for and extinguish small fires，and，if exiting，use the stairs. If you are in a coastal area，move to higher ground.Tsunamis are often created by earthquakes. If you are in a mountainous area or near unstable slopes or cliffs，be alert for falling rocks and other debris that could be loosened by the earthquake.Landslides monly happen after earthquakes. AFTER THE EARTHQUAKE Check yourself for injuries before caring for others. After you have taken care of yourself，help injured or trapped persons.If you have it in your area，call 9-1-1，then give first aid when appropriate. Look for and extinguish small fires.Put out small fires quickly，using available resources. Open closet and cabinet doors cautiously. Inspect your home for damage.Get everyone out if your home is unsafe.Aftershocks following earthquakes can cause further damage to unstable buildings. Help neighbours who may require special assistance.Elderly people and people with disabilities may require additional assistance. Listen to a portable，battery-operated radio （or television） for updated emergency information and instructions. Expect aftershocks.Aftershocks frequently occur minutes，days，weeks，and even months following an earthquake. Watch out for fallen power lines or broken gas lines，and stay out of damaged areas. Stay out of damaged buildings.If you are away from home，return only when authorities say it is safe. Use battery-powered lanterns or flashlights to inspect your home. Take pictures of the damage，both to the house and its contents，for insurance claims. Avoid smoking inside buildings. When entering buildings，be extremely careful. Check for gas leaks. Check for sewage（下水道） and water line damage.If you suspect sewage lines are damaged，avoid using the toilets and call a plumber（水管工人）.If water pipes are damaged，contact the water pany and avoid using water from the tap. Use the telephone only to report life-threatening emergencies. Watch animals closely.The behavior of pets may change dramatically after an earthquake.