单 元：unit 3 back to the past
板 块：task
课堂设计指导思想：
通过进一步操练学习描述历史事件并展示成果。
teaching aims:（用英文撰写）
具体陈述本课时要做的事及其目的，要从学生学习的角度陈述，如：
1.aid students to choose and organize the information they have got and help them complete their products.
2.enhance students’ overall abilities and improve their integrated skills.
3.make students learn how to write an outline of a speech and how to host a talk about a historical event.
teaching procedures:
step 1 lead in
introduce the topic of pearl harbour.
《设计说明》通过导入检查学生对珍珠港背景知识的了解程度。
step 2 writing descriptions for your illustrations
follow the steps on pages 55-56.
step 3 giving your talk
1.organize students into small groups and choose some sets of illustrations.
2. plan an outline according to a set of illustrations.
3. give the talk in groups and pay attention to the points given on p57.
step 4 homework
ask students to write their speech.
《设计说明》通过家庭作业再次巩固所学内容。
