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1)用於完成時的區別
延續動詞表示經驗、經歷；瞬間動詞表示行爲的結果，不能與表示段的時間狀語連用。
He has completed the work.他已完成了那項工作。 (表結果)
I've known him since then.我從那時起就認識他了。(表經歷)
2)用於till / until從句的差異
延續動詞用於肯定句，表示"做……直到……"瞬間動詞用於否定句，表示"到……，才……"
He didn't come back until ten o'clock.
他到10點纔回來。
He slept until ten o'clock.
他一直睡到10點。
典型例題
1. You don't need to describe her. I ___ her several times.
A. had met B. have met C. met D. meet
答案B.首先本題後句強調對現在的影響，我知道她的模樣，你不用描述。再次，several times告知爲反覆發生的動作，因此用現在完成時。
2.---I'm sorry to keep you waiting.
---Oh, not at all. I ___ here only a few minutes.
A. have been B. had been C. was D. will be
答案A.等待的動作由過去開始，持續到現在，應用現在完成時。
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