课型：讲练课
ⅠTeaching Material
1. Language materials
Words: pour, waste, dirty, member, join, environment
Phrases: be afraid of sth.
Sentences: How long have you been a member of Greener China?
I’ve been with Greener China for a year.
2. Grammar
现在完成时（二）现在完成时用来表示过去开始，持续到现在的动作或状态，可以和表示过去某一时刻延续到现在的一段时间的词组连用。
瞬间动词不能和表示过去某一时刻延续到现在的一段时间的词组连用。
ⅡTeaching Objectives
1. Try to understand the whole lesson and read it fluently. The pronunciation and intonation should be right.
2. Master the following materials as four skills.
Words: pour, waste, dirty, member, join, environment
Phrases: be afraid of sth.
Sentences: How long have you been a member of Greener China?
I’ve been with Greener China for a year.
3. Master the use of the present perfect tense
ⅢTeaching Points
1. The main points: (2) &(3) in teaching objectives
2. The difficult points:
现在完成时（二）现在完成时用来表示过去开始，持续到现在的动作或状态，可以和表示过去某一时刻延续到现在的一段时间的词组连用。
瞬间动词不能和表示过去某一时刻延续到现在的一段时间的词组连用
ⅣTeaching Procedure
1. Organization of the class