高中英语教案范文全英精品文档高中英语教案范文全英I. Teaching focus1.Realize the damage caused to the world and figure out the reasons.2.Find ways to stop the earth from being polluted by discussing in groups.II.Teaching approachesElicitation, Mutual InteractionIII.Teaching aidInteractive multimedia teachingIV.Teaching processStep 1Revision1. Check note-makingEarth: not enough rain, too many cattle, cutting down trees, strong windsAir: smoke from factories, power stations, cars, chemical rain, accidents at power stations and factoriesWater: waste from factories and citiesStep Presentation1( Present a series of images depicting the natural beauty of the earth, then the pollution.1 / 24精品文档Highlight the sharp contrast between them. Guide the students to the conclusion: The earth used to be much more beautiful than now; the earth is in danger due to the increasing pollution.2( Study the map on the textbook, then scan the passages to figure out where on the world atlas the damage has happened. Encourage the students to give out their point of view toward the pollution issue.Step Audiovisual LearningThe students watch a video on the text, then do the following trueor false questions.1.Many parts of the world with large population and plenty of crops have become deserts.T2. Land may become poor if farmers do not limit the numbers of their cattle.T3. Good soil is gradually lost these days as trees are being cut down. T4. Air pollution and water pollution are the two causes of the problem that many parts of the world have become deserts.F5. Chemicals in the smoke from power stations can travel hundreds of miles in the wind before falling2 / 24精品文档down to the ground in the rain. F6. After a bad accident at a nuclear power station,0% of the trees in Germany were damaged. F7. The writer to explain how water is polluted uses the examples of the accidents in both Indiaand Russian.F8. Once oceans are polluted, they are not able to clean themselves.FStep Intensive ReadingRead the passages again for some detailed information1. To say something about the damage that is caused to the world by pollution, using the information from the text. Try to present possible ways to help solve the problems.PhenomenaCausesSuggestionsEARTHThe area of desert is growing every year.Cattle eat grass.Limit the number of the cattle.3 / 24精品文档Good soil is gradually lost.Trees being cut down; strong winds blowing the valuable soil away.Plant more trees and try to protect them.AIRAir is being polluted.Factories, power stations and cars produce a lot of waste.A lot of things have to be done to reduce pollution. New laws should be passed and people should realize how serious the problem is.A lot of people died from polluted air in both Russia and India.There were serious accidents that polluted the air.Trees in the forest are destroyed and fish in the lakes are killed.Chemical rain.WATERIn some places it’s no longer safe for swimming, nor is it safe to eat the fish.Factories and cities produce a lot of waste.4 / 24精品文档Same as above.Lake Baikal, which used to be cleanest I the world, s now polluted.Waste produced from a chemical factory.2.to summarize the text by giving the main idea of each passage.Earth:The area of desert is growing and good soil is gradually lost.Air:Chemicals in the smoke cause a lot of damage and serious accidents took placefrom time to time.Water:Water pollution is caused by man’s waste. Thewaters of this great lake have been dirtied and800 square km of ocean were polluted by oil.Step DiscussionAppoint one student to host the discussion. The rest of the class fall into groups of, changing ideas on the following question.What kind of pollution can you think of?5 / 24精品文档Why trees are important?What are the causes of water pollution?What can be done to stop land from becoming into desert?What else do we know about the problems that the earth is facing?What steps should we take to save the earth?Step6Role playThe students take turns to play the role of a newspaper reporter, making interviews with heads of factories which are seriously polluting air and/or water. Record the interviews and compose a report.Step AssignmentRead the additional materials about pollution and do the reading comprehension exercises.Finish the report.Thanks for attending this class!____________________________________________________________________ _________--__资料我国环境污染现状令人担忧据专家估计，中国每年因环境污染造成的损失达到6 / 24精品文档二千八百三十亿元人民币，其中，仅水污染一项，估计一年造成经济损失约五百亿元。