在最后的操作practice这板块，修改后为：
Step3 Practice
1.Practise reading
2.Act out the dialogue
3.Imagination:Tim is back...Act it out.
4.Give a present to your friend,teacher or your family.
请大家给点参考意见，谢了！

在最后的操作practice这板块，修改后为：
Step3 Practice
1.Practise reading
2.Act out the dialogue
3.Imagination:Tim is back...Act it out.
4.Give a present to your friend,teacher or your family.
请大家给点参考意见，谢了！