We have finished our lunch already. Have you ever tried this method?
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比较一般过去时与现在完成时
1). 一般过去时只表示发生在过去的动作或存 在的状态, 不涉及对现在的影响;现在完成 时表示发生在过去的动作或状态一直延续到 现在,或强调过去的事情对现在的造成的影响 。
续到现在的动作或状态, 通常用于延续性动词. 常 与表示延续性的时间状语连用,如:so far, up to
now, recently, in the past 6 years, since…,
for … 等等.
I have lived in Jinan for 3 years.
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2).表示发生在过去的某一动作对现在造成的影响 或结果,常用的时间状语有: just ,already, yet, ever, never, once等等.
English has hurt me a thousand times, but I still regard it as my first love.
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六. 现在完成时(The Present Perfect Tense)
1. 结构: have (has) +过去分词
2.用法:
1). 现在完成时表示过去某一时间开始,一直延
My family lived in Qingdao ten years ago. (现在不在了)
My family have lived in Qingdao for 10 years.
(目前还在青岛)
have cleaned
即境活用:-- Look!Someone____________(clean)