课上内容（Lesson）
presentation 展示;陈述 = speech
1. Greet # say hi
2. Name # introduce yourself
3. Topic # I'll talk about....
4. 万能句 Who + sth + sb + where + time
课上内容（Lesson）
presentation 展示;陈述 = speech
1. Greet # say hi
2. Name # introduce yourself
3. Topic # I'll talk about....
4. 万能句 Who + sth + sb + where + time