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?例子：??He has just seen the film. 他刚刚看过这场电影。
She has passed the exam so far. 到目前为止她已经通过了考试
2).表示一个动作发生在过去，并且没有结束，一直持续到现在，并有可能持续到未来。（延续性动词适用于这种情况）
?例子：I have lived here for about ten years.
We have been very busy since the new term began.
2.结构
歌诀：
完成时，很简单，?have,?has?再加done.??I,?you,?we,?they?用have，?其他has把身现。?
否定not?加其后，?疑问句里提向前。?如果要把时间加，since一点，for一段。?
强调完成有不同，?yet，already句中添。yet否定，疑问见，already表示“已做完”。
?never，ever表经历，用在过去分词前，never本身表否定，ever“曾经”句意全。
肯定句：主语 + have/has +动词过去分词
（完成时，很简单，?have,?has?再加done.??I,?you,?we,?they?用have，?其他has把身现。）
I have already finished my lunch.
She has just gone out.
练习
A)?选用have, has填空：
1.?I?_______ told him the news.
2.?She?_______ come back from school.
3.?You?_______ won the game.
否定句：主语 + have/has not +动词过去分词（缩写：haven't（否定not?加其后）
he has never been there.
Tom hasn’t come back yet.
练习
She has already finished her meal.
疑问句：Have /Has + 主语 + 动词过去分词？（疑问句里提向前）。
简略答语：Yes,?主语?+ have / has.(肯定)
No,?主语?+ haven’t / hasn’t.(否定)
Have you heard the news yet? Yes, I have.
Have you ever climbed that mountain? No, I haven,t. 上一份练习改成疑问句