人教版高中英语第二册Unit9 Saving the earth--The first period

Unit 9 Saving the earthThe first periodI. Goals:1. To make Ss know pollution and present situation throughout the world and encourage them to find solutions to this problem.2. To encourage Ss to activate the relevant vocabulary.3. To develop Ss speaking by practicing supporting an opinion.II. Teaching proceduresStep 1 Warming up1. Greetings2. Talk about the picturesPresent the students a series of pictures to assure them how serious the pollution isand ask them some questions about these pictures. Q1: What can you see in these pictures? How does it happen?Q2: What causes the problem?Q3: What are the biggest problems facing the earth? Why do you think so?Q4: Have you ever done something bad to the environment?Q5: Can you give me more examples that happened in peoples daily life and is badfor the environment?Step 2 Listening1. Lead inMore and more people are realizing the damage that is being done the environment and learning more and more harm that the environment is doing to our human inhabit. People are celebrating International Earth Day, when varieties of activities are held so that more people will be involved in environment protection.2. While-listeninglListen to Part 1 and answer the questions.1)Why is she giving this speech?2)What does she think the most serious problem is?3)What does she say that we should do about it?4)What do you think she will say next?Listen to Part 2 and fill in the blanks with what Ss hear.Argument 1: We should _.We must _.We should _.If we _, we _.Argument 2; _Problem: _Solutions: _3. Post-listeningPair work: Infer what the speaker will say next, list like the above one and share the speech with the partner and the class.Group work: Discuss with group members about the measures that we may take to protect air, forest; animals; grassland.Ask Ss to deliver their speech on environment protection.Step 3 Speaking1. Talking about what Ss can see in the picture.(1) (2)Q1: What is being piled in the picture 1?Q2: What can coal be used for?Q3: What is being giving off from the workshop?Q4: What is being polluted?Every coin has two sides. It is true with coal, which is a valuable resource that can be used to produce energy, but it can also cause serious pollution.2. Group work: A debate Coal is/isnt a valuable resour