【正文】 lems, you can discuss in groups, then plete the exercises on Page11. 2. Work in pairs, ask students to make up a dialogue according to the table. 3. Do some additional exercises. Step7 Presentation (8’) 1. Learn the usage of the ordinal numbers by yourselves. Then ask students to generalize（歸納 ） : (1)We can use ordinal numbers to order things and events. (2) We use them to talk about dates(日期 ), floors(樓層 ), positions(次序 ) etc. When we use them, we should add “the” before a ordinal number 2. Look at Part B1 and try to find out the rules. Step8 Practice (9’) 1. Let students plete Part B2 on Page 12, then check the answers. 2. Finish off the following exercises (一 )用所給詞的適當(dāng)形式填空 . 1. He gets the (one) in the English test this time. 2. Tom will e on the (twelve) of this month. 3. There are days in a week. Saturday is the ______ day. (seven) 4. This is my (three) time to e to Shanghai. 5. Mr. Green has ______children. Tom is the youngest. He is the_ child