现在完成时态

现在完成时 1 概念 表示过去发生的某一动作对现在造成的结果 或影响 也可表示某一动作过去已经开始 一直持 续到现在 如 He didn t go to the movie because he has seen it They have lived here for ten years 2 构成 have has done 否定形式 have has not done 疑问句 把 have has 提前 I have finished my homework I haven t finished my homework Have you finished your homework Yes I have No I haven t 3 用法 现在完成时通常和以下时间状语连用 already never ever just before yet in the last past few years since 点时间 for 段时间 如 I have never heard of it before They have just finished the project Great changes have taken place in our city recently 4 already 和 yet already 已经 一般用于肯定句 与完成时连 用 如 I have already fed the cat 否定句和疑问句用 already 表示惊讶 如 Has he gone to bed already yet 已经 还 一般用于否定句和疑问句 与 完成时连用 如 Have you packed the camera yet I have not yet been to the Great Wall 5 since 和 for since 点时间 for 段时间 谓语动词必须是延 续性动词 She has studied in this school since 2012 She has studied in this school since two years ago She has studied in this school for two years 翻译 我们已经等你一个小时了 6 非延续性动词与延续性动词之间的转化 当现在完 成时与段时间连用时 谓语动词必须是延续性动词 非延续性动词必须转化为延续性动词 如 The meeting has started for half an hour The meeting has been on for half an hour start be on finish be over borrow keep go leave be away come be in join be in buy have die be dead marry be married return be back fall asleep be asleep 1 Our English teacher is very nice We friends since three years ago A were B became C have been D have made 2 He his hometown for twenty years He really missed it A has been away from B left C has left D is away from 3 Jack the MP4 for two years A bought B have bought C has had D has bought 注意 在否定句中 非延续性动词可以和段时间连用 如 We haven t met for many years 7 have gone to have been to 和 have been in have gone to 去某地了 还未回来 可能在路上 也可能在某地 如 My father isn t at home He has gone to work have been to 去过某地 强调曾经到过 现在已 不在某地 如 I have been to the zoo twice have been in 来到某地 通常和段时间连用 如 They have been in the city for three days 1 I d like you to tell me something about the museum Sorry but neither Jack nor I there A have been B had been C have gone D has gone 2 Why are you worried I m expecting a call from my daughter She New York for three days A has gone to B has been to C has been in D has come to 3 Where can I find Tim He the post office A has been to B has gone to C went D goes 8 一般过去时和现在完成时的区别 一般过去时表示过去发生了某一动作 与现在无 关 常与具体的表示过去的时间状语连用 如 I read the book yesterday 现在完成时强调过去发生的动作对现在的影响 如 I have read the book 比较 She lived here in 2008 She has lived here since 2008 1 Sam Chinese since he came to China He speaks good Chinese now A learns B learned C has learned D will learn 2 Have you finished your homework Not I ll need another hour A already already B yet yet C ever yet D ever already 3 Where is Mr Smith She to England A has gone B has been C went D goes 用所给单词的适当形式填空 1 I m sure we meet somewhere before 2 Linda be in Shanghai for a few days 3 I no hear from him since 2008 4 They visit their teacher already 5 The man die for many years 6 the children ever be to Beijing 同义句转换 1 We joined the army in 2009 We the army since 2009 2 The meeting has been on for ten minutes The meeting ten minutes 3