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重庆大学版（顺序选修）英语6二年级《Theme A Enviromental Protection Environmental Problems Unit 2 Protecting Our Home Grammar》优秀教学课件
语法精析
China has been developing the relationship with Africa in the past 50 years.
在过去的50年里，中国一直在发展同非洲的关系。
2.表示动作刚刚结束。
I have been waiting for you for about half an hour.
我等你大约半小时了。
3.表示从过去到现在为止的一段时间内一再反复进行的动作或存在的状态，重复的动作表示感情色彩。
We have been seeing each other quite a lot recently.
最近我们经常见面。
4.现在完成进行时表示“刚才”或“近来”发生的动作，也可表示直到说话时为止的一段时间内发生的动作。这一动作到说话时已结束，而且一般不再继续下去；这种用法主要表示某一动作所产生的结果或对现在的影响。
You have been cleaning the house，I think.
我想你刚才一直在打扫房子吧。
即时跟踪1
用所给词的正确形式填空
1.George (not feel) very well recently.
2.I’m tired because I (paint) the living room all day.
3.The foreign teachers (work) in our college for eight years and they don’t have the intention to leave.
4.Jane Goodall (study) chimps since 1960.
5.She is very tired because she (type) letters all day.
hasn’t been feeling
have been painting
have been working
has been studying
has been typing
答案