3.　　　 Patterns: How long have you been doing sth ?

　　 I have been doing sth since … .

　　 I have been doing sth for … (period of time) .

2.　　　 现在完成进行时的用法。

1.　　　 Words and expressions in this unit .

4.　 What ways do you think a robot will help you and your family in the future .Write your ideas .

3.　 Make their own sentences .

2.　 Go over this unit .

1.　 To make sure the Ss understand the passage .and I want to know whether they’re careful in the class ,let Ss translate the passage into Chinese .

2.　 Go over the structures in SB Page 9 , 3b .

　　 Make their own sentences .

　　 Homework:

1.　 Go through the reading again .

　　 How many words in 1b did you correctly predict ?

4.　 Read the passage by the Ss .

　　 Step 4　 Post-task