3.　 Play the tape twice .Ss circle the word they hear in each sentences: more , less , fewer .

2.　 Read the instructions and point out the sample answer .

1.　 Read the predictions .

4.　 Ask several pairs to share their conversations to the class .

　　 SB Page 3 , 2a & 2b .

3.　 Pairwork .Work in pairs to make predictions according to the sample .

2.　 Read the dialogues fluently .

1.　 Pay attention to the dialogues .

4.　 Play the tape a third time .At the same time ,check the answers .

　　 SB Page 2 , 1c .

3.　 Play the tape twice .

2.　 Read the instructions to Ss .Circle the things you hear on the recording .