book 6 unit4

高中英语 Unit 4 Global warming 人教版第六册Teaching aims:1. Topic Global warming; Pollution; The importance of protecting the earth2. Useful words and expressions:Words: compare, graph, phenomenon, fuel, quantity, per, data, catastrophe, climate, consequence, state, range, glance, widespread, decrease, steady, steadily, average, existence, outer, electrical, motor, can(n.), microwave, nuclear, disagreement, titleExpressions: compare to, come about, quantities of, result in, build up, keep on, on the whole, make a difference, put up with, so long as, and so on3. Functional items:Expressing agreement, disagreement, blame and complaintYes, I agree with you.Yes, I think so.I believe that you’ve got it right.I don’t think so.I don’t think that’s right.I’m afraid you are wrong.I’m sorry to bring this up, but….I’m sorry to say this, but….They shouldn’t have done it.They are to blame.Why don’t you do something about it?Perhaps they should /ought to do….4. Grammar The use of “It” : it used for emphasisIt is human activity that has caused this global warming.Teaching proceduresPeriod 1 Speaking and listening Step 1. Warming upTask 1. Ss in groups, discuss the following questions:1. What do we use energy for?2. Where does all the energy come from?3. Which energy sources are renewable and which are non-renewable?Sample answers:Renewable Non-renewable Wind power Coal Solar powerNatural gas and oil Hydroelectric powerNuclear powerStep 2. Listening Task 2: Ss read the statements in Ex 1 on page 31 and listen to the tape to find out the listening points.1. Ss read the statement.2. Play the tape for the first time. Help the Ss get a general understanding about the dialogue.3. Ss find out the listening points and...