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译林2003课标版《Grammar and usage(1)： Present perfect tense》集体备课PPT课件优质课下载
2. They have lived there since 1990.
3. She hasn’t finished her homework yet.
4. Eric has just come back.
5. How long have you been here?
Present Perfect Tense现在完成时
Present Perfect Continuous Tense
现在完成进行时
1.掌握现在完成时的一般用法
2.区别现在完成时&现在完成进行时
3.区别现在完成时&一般过去时
4.掌握一些常用现在完成时的语块
Learning Aims
预习检测
一、现在完成时
1. 现在完成时的构成：（以do为例）
主动形式___________________________
被动形式___________________________
has/have done
has/ have been done
2. 现在完成时的用法：
（1）He has turned off the light.
（2）Justin has disappeared, so Kelly is very sad.
The disappearance of Justin has made Kelly very unhappy.
（3）He has lived here since 1995.
（4）Some villagers say that they have seen UFOs many times.