Step2. Preview

　　常识导入，预测信息

　　When do you sleep？ Do you sleep in the day？ (讲解awake)

　　You are a child. So you sleep at night. You are awake in the day.

　　预测狐狸的睡觉习性。

　　How about a fox？ Does it sleep at night？

　　Step3. Presentation

　　1.问题引导，整体阅读

　　When does a fox sleep？

　　引导学生用英语回答问题：It sleeps in the day.

　　When does a child sleep？

　　How about a baby？