1、英语：Unit4 Global warming教案（2） （新人教版选 修 6） Period 4 Using Language Teaching Goals: 1.To discuss and read about global warming. 2.To learn to write a poster. Teaching Procedures: Step 1. Warming up Turn to page 30. Listen to the tape and follow in a low voice. Pause where the reader pauses. Pay attenti
2、on to the pronunciation and intonation. Step 2. Reading 1. Individual work When you read the text for the second time you are supposed to underline all the useful collocations .You have to copy them into your notebook. I hope you can fully understand the importance of expressions in English learning
3、. 2. Group work Discuss in groups the collocations from the text. Do a project on; doabouthave effect on; start withget suggestions; have to power to; make a difference; put up withcome fromreduce the carbon dioxide content; be started with; use energy inleaveon; turnoff; turn up the heat; ride a bi
4、ke; makefrom; be made from recycled materials; save energy; plant trees in the garden; absorb carbon dioxide from; talk withabout Step 3. Writing You are going to make a poster to tell your schoolmates ways to reduce the amount of carbon dioxide in the air. For your reference: How To Reduce the Amou
5、nt of Carbon Dioxide Going into the Air. Use public transportation, walk or bike to school or work. If you must drive, join a carpool and use a car that gets high mileage. Use energy-efficient appliances and weatherize your home. Use renewable energy sources, like solar heart or wind power ,which do
6、nt emit carbon dioxide. Switch from coal and oil to natural gas in power plants and factories .Natural gas releases the least amount of carbon dioxide. Step 4. Listening and discussing Now turn to page 31. Li Ben is doing an interview with Professor Chen about the use of different sources. Read the
7、statements and listen to the tape recording of the interview to decide which statement the professor does not agree with. Well have to stop using fossil fuels. About 90% of the worlds energy comes from fossil fuels. We can replace fossil fuels with renewable sources of energy. Nuclear power is a goo
8、d source of energy. In the future, well need new technologies to replace fossil fuels. Its the developed countries who are to blame for producing most of the carbon dioxide. Step 5. Closing down Discuss what we individuals can do about global warming in groups of four. Non-renewable 不可再生能源 Renewable 可再生能源 Coal 煤炭能源 Gas 石油能源 Nuclear 核能源 Solar 太阳能 Wind 风能 Hydro-electric 水电能源 Geothermal 地热能源 Step 6. Homework Make a poster for your school that tells Ss various ways they can reduce the amount of carbon dioxide in the air.
