教学过程

　　Step 1 Warm-up

　　Greet with Students.

　　Sing a song.

　　Step 2 Lead-in

　　Show Ss a basketball.

　　T： Whose ball is it？

　　S1： It‘s mine.

　　T： Where did you buy it？

　　Ss answer.

　　T： What’s this？

　　Ss answer.