Unit 4 Global warmingUnit 4The fifth period Teaching methods situational teaching method ; cooperative learning method; programmed teaching method; task-based and assessment teaching methods.Teaching aims and demands一、 topic: Global warming; pollution; the importance of protecting the earth二、 vocabulary三、 functions: Agreement and disagreement①②Blame and complaint四、 grammar : The use of ‘it’Arrangement of teachingthe first period: warming upthe second period: language points of readingthe third period : readingthe fourth period : learning about language and language points of using languagethe fifth period: using languagethe sixth period: grammarthe seventh period: exercises 1. Check up Daily ExercisesUsing language Skim the letters and find who the writers are and what their purpose of writing the letters is. The first letter is written by a student who is asking for suggestions for his project — global warming.The second letter is written by an editor of Earth Care magazine. He offers the student some suggestions on what to do about global warming. Earth Care’ssuggestionsCan you carry it out?ReasonsList Earth Care’s suggestions and then in groups, discuss whether you think you can carry out each suggestion. If you are not using electrical appliances, turn them off.YesSave energyYesSave energyYesSave energyYesSave energyIf you’re cold, put on more clothes instead of turning up the heat.Motor vehicles use a lot of energy, so walk or ride a bike if you can.Recycle cans, bottles, plastics and newspapers and buy things made from recycled materials.YesSave energyYesPlants absorb carbon dioxide from the air.Plant more trees.Get your parents or friends to buy products that are made to save energy.YesTogethe...
