Step I. Revision

教师展示图片询问学生若干问题：

wDoes anyone have a pet?

wWhat kinds of animals would you like to have as pets?

Step II. Leading in

教师提问：

wWhat do you want to be when you grow up?

wWhat do you want to be, a doctor for humans or a doctor for animals? Why?

Step III. Read and act

教师讲解课文，然后让学生听录音并跟读课文。

请出若干对学生进行扮演角色演练对话。

Step IV. Video

教师播放有关对话内容讲解的视频演示。

Step V. Questions

教师组织学生进行小组讨论如下问题：

wDo you think it's more important to help people than animals? Why?

wWhat kinds of jobs do you know?

wWhat would you like to be in the future?

wWhat are your parents' job?

wDo your parents like their job? Why or why not?

Step VI. Make sentences

教师展示练习要求学生将方框中的短语组成完整的句子（组句练习）。

Step VII. Infinitive sentences

教师讲解不定式作主语的用法。

Step VIII. Dictation exercise

教师进行听写练习，之后在课堂上讲解。

Step IX. Exercises

教师组织学生完成课堂练习巩固本课学习的知识点。