a. He has gone to Shanghai. ( =He went to Shanghai and he is not here now. )
b. I have opened the window. ( =I opened the window and the window is now open.)
c. The concert has started. ( =The concert started and is now going on. )
d. I have had breakfast. (=I had breakfast and I am not hungry now. )
②.表示开始于过去, 持续到现在(也许还会继续进行下去)的动作或状态, 用于延续性动词, 且句中常带有表示段时间的时间状语
a. I have studied English since 1987.
b. He has lived here for two years.
c. He has been ill for ten days.
3.现在完成时与一般过去时的区别:
①.现在完成时和一般过去时所表示的动作都发生在过去, 但前者将过去的动作与现在的结果或对现在的影响联系起来, 而后者只限于表示过去的动作本身, 与现在无关
②.现在完成时不能与表明确时间的状语如: yesterday, last year, two days ago, when I came in等连用, 但可与表示不明确时间的状语如: already, yet, sometimes, often, before, lately, recently, once, twice, ever等连用, 也可以和包括现在在内的时间状语如: this morning, today, this week, this year等连用
a. She has already come.
b. I have met him before.
【高考英语总复习语法专项 谓语动词1】相关文章:
最新
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29