u6现在完成进行时.ppt

现在完成进行时讲解
It has been raining cats and dogs since yesterday.
Name:Jay
Hobby:writing songs
He has been writing songs since 1995.
He has been writing songs for 11 years.
1995
Job:singer
He started writing songs in 1995. He does this now.
Name:Liu Xiang
1997
He has been singing since 1997.
He has been singing for 9 years.
Hobby:singing
He started singing in 1997. He sings sometimes now.
Jack likes cooking. He is cooking now.
He started to do this 4 hours ago.
Jack ___________________ for 4 hours.
has been cooking
My brother drives. He started to this in 1988.
My brother ______________ since 1988.
has been driving
Xiao Xin swims every day.
He began to swim when he was 3 years old.
Xiao Xin ______________________ since he was 3 years old.
has been swimming
Peter is painting.
She started two hours ago.
Peter _______________ since two hours ago.
has been painting
(一) 时态--- 现在完成进行时
have / has是助动词
been是be的过去分词
表示从过去开始一直持续到现在的动作，
并有可能持续下去．
构成形式：
have / has been + V- ing
Task 1: conclusion 总结