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延续性动词和短暂性动词转换归纳 瞬间动词可以用于现在完成时,但不能和表示一段时间的状语连用如:for 和since 所引导的时间状语都表示一段时间.那就要将瞬间动词转化为表延续的动词或者表状态的be+名词/形容词或副词/介词短语等。 leave— been away from buy—have borrow—keep die—be dead get up—be up put on—be on / wear come / get back—be back go to town—be in town lose—be missing catch a cold—have a cold close—be closed / not open open —be open fall ill / asleep— be ill / asleep begin /start—be on return--be back marry---be married finish--be over become--be come / go to —be in / at arrive in (at)/ get to / reach——be in / at join + 名词-------be in + 组织 / be a(an)+组织成员 get /receive a letter from—have a letter from 一看时间状语。如果句中没有表示过去确切时间的状语,常用现在完成时;如果有,则只能用一般过去时。如: I have visited the factory. I visited the factory last year. 二看句首有无疑问词。如果笼统地问人家做过某事了吗(句首无疑问词),常用现在完成时;但进一步询问何时、何地、何原因、用什么方式做那事时(句首有疑问词)就要用一般过去时。如:-Have you had your breakfast? -Yes, I have. -When did you have it? -At seven thirty. 注意: 这种用法是以连贯性问答为背景的。否则就需要具体情况具体分析。如: How many words have you learned by heart? How did you learn them by heart? 三看句中谓语动词是否为延续性动词。如果表示的动作或状态一直延续到现在,最好选用延续性动词,并使用现在完成时;如果是瞬间动词,则用一般过去时。如: He has been a league member for two months. He joined the Youth League two months ago. 本文来源:https://www.dywdw.cn/f22f4a7a12661ed9ad51f01dc281e53a5802511c.html