A: Yes, it doesn't belong to Zhang Ping, Zhang Hao or Tong Yao. So it must be Xu Jinmeng's. He washes his clothes every week, so his uniform is the cleanest.

Whose dog is this?

It might/could be________.

It must be Jane's.

Whose ________ is this?

It might/could be________．

It must be Grace's.

Whose ________ is this?

It might/could be ________．

It can't be ________．

It must be________．

[设计意图：教师出示一些图片，并且先做一个示范，剩下的让学生自己根据所给的图片来回答问题。这既调动了学生的兴趣，又引入了新的语言知识。]

4. Have a competition(1a)

The teacher divides the students into several groups, and then encourages the students to say the things as many as possible.

[设计意图：这一环节采用竞赛的方式，看看哪一组说出的事物最多，教师给予适当的表扬。这一活动能调动学生积极性，使其能在小组活动中积极与他人合作，相互帮助，共同完成学习任务， 尽情享受学习的乐趣。]

Whilelistening activities

1. Listen for the general idea of 1b.(听对话，了解大意)

Look at the picture. What are they talking about? Let's listen and choose the best answer to the question.

The general idea of the conversation is about__________．

A. the picnic