阅读过去曾经所做的事。如：庭院旧货销售。

课题：Section B 3a-4
课时：one period
主备：一春飘雪
Learning goals
Knowledge goals:Vocabulary:DVD yard yard sale luckily umbrella raincoat wet
                  Target language:writing practice
Ability goals:reading skills   writing skills   speaking skills cooperating skills
Moaral goals:past is the teacher of tomorrow.
Learning flow: lead in-------warn-up ------discuss and communicate-----explore the new knowledge ------performance------test in class.
Learning procedure:
一． Lead in------------see CAI
二． Can you translate these following into English、？