延续性动词指的是可以持续的动词，如：eat, drink, study, run, listen, sit, write 等。非延续性动词指的是不能延续的动作，如：die, come, go, leave, arrive, start,begin等。这些动词不能持续，因为我们不能说 He has died for three years.(他重复死的这个动作重复了三年。） 但是我们可以说 He has been dead for three years. 或者 He has died. 下面的句子都是错误的： The film has started for 30 minutes. He has come for 3 hours. He has left for 5 days.但是我们可以说：The film has been on for 30 minutes./The film started 30 minutes ago.He has been here for 3 hours./ He came 3 hours ago.He has been away for 5 days./He left 5 days ago.
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