2013年最新公共英语考试一级写作语法（5）
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现在完成时可表示持续到现在的动作或状态，动词一般是延续性的，如live, teach, learn, work, study, know.
过去时常用的非持续性动词有come, go, leave, start, die, finish, become, get married等。
举例：
I saw this film yesterday.
(强调看的动作发生过了。)
I have seen this film.
(强调对现在的影响，电影的内容已经知道了。)
Why did you get up so early?
(强调起床的动作已发生过了。)
Who hasn't handed in his paper?
(强调有卷子，可能为不公平竞争。)
本文标题：2013年最新公共英语考试一级写作语法（5） - 全国英语等级考试_PETS作文_公共英语等级考试写作过去时常用的非持续性动词有come, go, leave, start, die, finish, become, get married等。
举例：
I saw this film yesterday.
(强调看的动作发生过了。)
I have seen this film.
(强调对现在的影响，电影的内容已经知道了。)
Why did you get up so early?
(强调起床的动作已发生过了。)
Who hasn't handed in his paper?
(强调有卷子，可能为不公平竞争。)
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