高中英语《Environmental Protection》教案1 北师大版选修8

Unit 22 Environmental Protection Lesson 1 Global Warming-教案Teaching aims:By the end of this lesson, students will1. have a better understanding of what global warming is2. know the serious consequences that global warming may cause3. realize the importance that we need to take actionTeaching methods:Prediction, pair work, fast reading, careful reading, group discussionTeaching aids:Some slides, a projector, a computerTeaching procedures:Step 1 pre-reading1. Lead- inUse some cartoons to lead to the topic- Global Warming.Ask students how much information they know about global warming and which countries contribute more to global warming: developed countries or developing countries.2. PredictionEnable students to consider what they will talk about if they are to write a passage entitled “global warming”.3. Sub-title explanationWork out the meaning of the word “take”.Step 2 While-reading1. First reading (pair work)Go through the text quickly and grasp the general idea of each paragraph.2. Second readingRead the text carefully and answer the following six questions.1 What is global warming?2 Whats the use of carbon dioxide according to the text?3 By how much has the global average temperature increased in the last 100 years?4 What human activities are causing global warming?5 What consequences will global warming cause?6 How can each of us help solve the problem of global warming?Step 3 Post-reading1. Listening (Listen to strengthen understanding)2. Blanks filling. Students are asked to fill in the blanks with some key words to retell the text.Step 4 Group discussionWhats your attitude towards plastic bags banning?What can we use without these free plastic bags?Step5 SummaryWhat do we learn from todays lesson?What will we do to protect our environment