现在完成时与现在完成进行时 完整版课件

1、Present perfect tense and Present perfect continuous tense(现在完成时与现在完成进行时)1 现在完成时的构成：2 现在完成时的用法：1）表示一个发生在过去的动作/事情对现在产生的影响。（注意这时说话者说话的重心在于过去的事情对现在产生的影响）。常与already, just(刚刚),yet, never, before, many times 等时间状语连用。(1) He has turned off the light.(= The light is off now.)(2) The concert has started.(=The

2、 concert is on now. )(3) I have already seen the film.(= I know the film now.) 2) 表示一个动作开始于过去，持续到现在，也许还将持续下去。常与表示从过去延续到现在并包括现在在内的一段时间状语连用。如：lately, recently, in the last/past few days/years, since then, up to now, so far等。have/has +过去分词(1) In the past few years, great changes have taken place in my

3、hometown.(2) He has been busy writing a book recently.(3) He has written 8 books so far.3 使用现在完成时应注意：1） 瞬间动词（终止性动词）可以用于完成时态，但不可以接表示一段时间的状语；瞬间动词的否定式可以接表示一段时间的状语。He has joined the army for 10 years. It is 10 years since he joined the army. The old man has died for many years. The old man has been dead

4、 for many years.常见的瞬间动词有：come, go, get to/reach/arrive at, leave,buy, sell, open, close, get up, join/take part in, begin/start, return/give, borrow/lend, become/turn, bring/take, die, finish/end, receive/ hear from, marry, break, lose, jump等。(X)() (X)() 2) 在条件、时间、让步状语从句中，用现在完成时表示将来某时以前已完成的动作。如：I wi

5、ll not believe you unless I have seen it with my own eyes.I will go with you as soon as I have finished my work.3） It/This is the first/second last time that-从句，从句中动词用现在完成时：This is the first time that I have come here. 4） It is/ has been + 一段时间+since-从句It has been 3 years since he died.4 现在完成时与一般过去时

6、的区别：现在完成时和一般过去时都可以表示过去发生的动作，但现在完成时表示过去动作对现在的影响，并且表示这一动作已完成或还可能继续下去，不能与表示具体的过去时间状语连用；而一般过去时与现在的情况没有联系，仅表示过去的动作，且这一动作到说话时已终止。可以与表示具体的过去时间状语连用。When I was at college, I _ three foreign languages, but I _ all except a few words of each.A spoke; had forgotten B spoke; have forgotten C had spoken; had forg

7、otten D had spoken; have forgotten现在完成进行时1 现在完成进行时的构成：have/has been +现在分词2 现在完成进行时的用法：现在完成进行时表示一个动作开始于过去，并持续到现在，并强调现在还在进行。通常与表示一段时间的状语连用。如: for hours, since2000等。1）He has been learning English for 6 years.(从过去某一时间开始学英语，强调到现在还在学)他已经学6年英语了。2）It has been raining for 3 days.3）- Hi, Tracy, you look tired

8、. - I am tired. I _ the living room all day.A painted B had paintedC have been painting D have painted3 现在完成时与现在完成进行时的区别 1）在与表示一段时间的时间状语连用时，现在完成进行时和现在完成时都可以表示一个动作从过去某时开始，延续到说话时刻，并可能延续下去。这时两种结构可互换使用。但现在完成进行时更强调动作的持续性和未完成性及延续时间之长久。I have been staying in Beijing for six weeks.(强调时间很久了)I have stayed in

9、Beijing for six weeks.2）在不用表示一段时间的状语情况下，两种时态表达的意思差别较大。现在完成进行时表示此动作仍在进行，而现在完成时则表示动作到说话时刻已经结束。They have been preparing for the meeting.(他们一直在为会议做准备)They have prepared for the meeting.(他们已为会议做好了准备。言外之意是“随时可以开会了”。)3) 现在完成时可表示反复发生的动作；而现在完成进行时则表示持续的、不间断的动作。Ive read this book“Les Miserables” several times.

10、 ()Ive been reading this book“Les Miserables” several times.(X)1 - Where_ the recorder? I cant see it anywhere. - I _ it right here. But now its gone. A did you put; have put B have you put; put C had you put; was putting D were you putting; have put2 - I hear that you _ a new house. - Yes, but I _

11、in it now. A have bought; wont live B have bought; am not living C will buy; have lived D will have bought; am not living 3 Our team_ every match so far this year, but we still have three more games to play.A was winning B has won C had won D wins4 He _ home for nearly three weeks.A has gone away B

12、has left C has been away from D went away from5 Its the third time you _ late this week.A had arrived B arrived C have arrived D arrive6 He _ out when somebody called at his office.A has just gone B had just gone C just went D just now went7 She didnt go to the cinema because she_ the film before.A

13、had seen B has been C saw D was going to see8 He _ articles for our wall-newspaper these years, and he_ about thirty articles.A has been writing; has writtenB has been writing; wroteC is writing; has been writingD has been written; has written9 Now that she is out of a job, Lucy_ going back to school, but she h