1、Period 3. Step 1. Revision Check the answers of Wb Ex 1 and 2 on page 56 .Step 2. Discovering useful structures1. Ss look at the following sentences and underline the verbs. Are you working this evening? Were having an English party this weekend. He is leaving tomorrow.Let Ss themselves find the rul
2、es and tell what tense they are used.2. Ss finish the dialogue on page 21 and pay attention to the tense. Suggested answers: are going, going, going/traveling, staying, are coming, coming, are going, 3. Ss finish part 3 on page 21.Step 3. Talking 1. Ss four in one group and have a discussion about t
3、he topic on page 55.2. Ss make a list about the objects: which is the most useful and which is the least useful and why.the most useful objects the least useful objects3. Ss show their result to the class.Step 4. Speaking 1. Ss work in pairs and discuss: what do you think a dam does to a river and the people who live on it?2. Make a list of some good and bad things a dam does.3. Discuss your report with your classmates and then show it in class.Step 5. Assignment Finish Wb Ex 1 using structures on page 57. .
