现在完成时可用和过去完成时.pptVIP

* * 现在完成时与过去完成时的区别The present perfect tense  The past perfect tense I have finished my homework. I had finished my homework by 10:00 this morning. 现在完成时 用法 结构 搭配用语 辨析 瞬间动词 VS. 延续性动词 固定句型 强调过去发生的动作对现在造成的影响。 2.过去发生的动作一直持续到现在，常搭配一段时间,与for或since连用. He has just left. He has been here for two weeks. We have lived here since 1998 现在完成时含义 肯定式 sb. + have/has done + sth. sb. have/has not done + sth. Have/has sb. Done +sth. ? They have already finished the work. They haven’t finished the work yet. Have they finished the work yet? 否定式 一般疑问句式 现在完成时： 句子结构 与现在完成时搭配的时间状语 ever at any time Have you ever visited New York? never not at any time Yes, I have. No, I’ve never visited New York. already 用于肯定句 (用于一般疑问句表示惊讶的语气) We got there at 6:30 but she had already gone. Have you finished already? yet 用于否定和一般疑问句 Has it stopped raining yet? Just 刚刚; 用于不同句式 He has just returned from France. 用 “just/already/yet.”填空 Do you know where Julia is? --Yes, I ______________ (just see) her. 2.What time is David leaving? --He _____________(already/leave) 3.What’s in the newspaper today? --I don’t know. I _______________(not read yet) 4.What does Tim think of your plan? --I __________________(not /tell/yet). 5.Is Ann coming to the cinema with us? --No, she _______________ the film. (already/see) have just seen has already left haven’t read it yet haven’t told him yet has already seen 1. _____you _____ (hear) from George recently? 2.Lin __________ (not meet) those people in the last few days. 3.Everything is going well. They _____________ (not have) any problems so far. 4.I’m hungry. I ___________ (not eat ) anything since breakfast. 5.It’s nice to see you again. We ___________ (not see) each other for a long time. 6.He _______ the novel twice in the last few days. (read) Have heard hasn’t met haven’t had haven’t eaten haven’t seen has read 请改变动词形式，并注意副词 have been