摘要:VI. 一般过去时.现在完成进行时和现在完成时的区别 一般过去时只表示过去的一个动作或状态.和现在不发生联系.现在完成时是用一个过去的动作说明现在的情况. He lived in Beijing in 2000. 只说明他2000年住在北京.他目前住在哪里并不清楚. He has lived in Beijing since 2000. 说明他自从2000年就住在北京.他目前还住在北京. 现在完成时和现在完成进行时都可以表示“从过去开始一直持续到现在 这一概念.有时两者可以互相代用.但前者多用于口语.在含义上如着重表示动作的结果时.多用现在完成时,如着重表示动作一直在进行.即动作的延续性或者动作仍然继续下去时.则多用现在完成进行时.如: a. I have written six letters since breakfast. 从吃早饭到现在我写了六封信. I have been writing letters since breakfast. 从吃早饭到现在我一直在写信. b. I have read this book. 我读过这本书. I have been reading this book. 我一直在读这本书. 练习: I have already finished my homework . 已经 He has not finished his homework yet. 还没 My mom has just come back .刚刚 We have been very busy recently. 最近 I have ever seen this movie. 曾经 He has never read this book. 从未 We have known each other before. 以前 Mrs Brown has taught English for 20 years. I have lived in Beijing since 1990. My brother has been in the army for 3 years. She has worked in the bank since she finished high school.

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