5.4 助动词have的用法 | ||
1)have +过去分词,构成完成时态,例如: He has left for London. 他已去了伦敦。 By the end of last month, they had finished half of their work. 上月未为止,他们已经完成工作的一半。 2)have + been +现在分词,构成完成进行时,例如: I have been studying English for ten years. 我一直在学英语,已达十年之久。 3)have+been +过去分词,构成完成式被动语态,例如: English has been taught in China for many years. 中国教英语已经多年。 |
助动词have的用法
2007-01-01 00:00
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