英语高一牛津版实用新学案
Unit
2(六)现在完成进行时
构成:have been doing sth.
用法:表示从过去某一时间开始一直延续到现在的动作。这个动作可能刚刚结束,也可 能仍在继续,并可能延续到将来。(表示到现在为止一直在发生或反复进行的动作)
——How long have you been waiting here?
——I have been waiting here for about half an hour.
你在这儿等多
久了?我在这儿大概等了半个小时。
Professor Wang has been doing the research on English 1
iterature for more than 30 years. He has written more than 10 books, some of which have been published in England and the USA in recent years. Now he is teaching English literature in a famous univer ...


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