2.　 Groupwork : Ask “What was …doing when the UFO arrived ?”

1.　 Point ort the picture .Ask what each person is doing .

3.　 Play the recording again ,correct their answers .

　　 Notice: when / while

　　 ※　　 When comes before a quick action that happens only once .The word “while” comes from an action that continues for some time .

　　 Step 6　 Post-task

　　 SB Page 19 , 2c .

2.　 Play the recording .Write “when” or “while” on each line .

1.　 Read the instructions .

3.　 Play the tape again ,correct the answers .

　　 SB Page 19 , 2b .

2.　 Play the tape twice .Order these statements .

1.　 Read the sentences .Make sure the Ss understand what they mean .

4.　 Check the answers .

　　 Step 4　 Post-task

　　 Talk about what people were doing when the UFO arrived .

　　 Step 5　 While-task

　　 SB Page 19 , 2a .

3.　 Play the tape twice . Circle the correct responses .