3)現(xiàn)在完成時可表示持續(xù)到現(xiàn)在的動作或狀態(tài),動詞一般是延續(xù)性的,如live, teach, learn, work, study, know.
過去時常用的非持續(xù)性動詞有come, go, leave, start, die, finish, become, get married等。
舉例:
I saw this film yesterday.
(強(qiáng)調(diào)看的動作發(fā)生過了。)
I have seen this film.
?。◤?qiáng)調(diào)對現(xiàn)在的影響,電影的內(nèi)容已經(jīng)知道了。)
Why did you get up so early?
(強(qiáng)調(diào)起床的動作已發(fā)生過了。)
Who hasn't handed in his paper?
(強(qiáng)調(diào)有卷子,可能為不公平競爭。)
She has returned from Paris.