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现在完成时(短暂性动词与延续性动词)的用法基本结构:主语+have/has+过去分词(done) 肯定句:主语+have/has+过去分词+其他 否定句:主语+have/has+not+过去分词+其他 一般疑问句:Have/Has+主语+过去分词+其他 特殊疑问句:特殊疑问词+一般疑问句(have/has+主语+过去分词+其他)(1)现在完成时用来表示现在之前已发生过或完成的动作或状态,但其结果却和现在有联系,也就是说,动作或状态发生在过去但它的影响现在还存在. I have spent all of my money.(含义是:现在我没有钱花了.) Jane has laid the table.(含义是:现在桌子已经摆好了.) Michael has been ill.(含义是:现在仍然很虚弱) He has returned from abroad. (含义是:现在已在此地) (2)现在完成时可以用来表示发生在过去某一时刻的,持续到现在的动作(用行为动词表示)或状态(be动词表示)常与for(+时间段),since(+时间点或过去时的句子)连用. Mary has been ill for three days. I have lived here since 1998. 注(超重要):瞬间动词(buy,die,join,lose)不能直接与for since 连用。要改变动词 come-be go out-be out finish-be over open-be open die-be dead 1.have代替buy My brother has had(不能用has bought) this bike for almost four years. 2、用keep或have代替borrow I have kept(不能用have borrowed) the book for quite a few days. 3、用be替代become How long has your sister been a teacher? 4、用have a cold代替catch a cold Tom has had a cold since the day before yesterday. 5、用wear代替put on b)用“be形容词”代终止性动词 1、bemarried代marry 2、beill代fall (get) ill 3、bedead代die 4、beasleep代fall (get) asleep 5、beawake代wake/wake up 6、begone代lose,die,sell,leave 7、beopen代open 8、be closed代close/shut 9、bemissing(gone,lost)代lose c)用“be副词”代终止性动词 1“beon”代start,begin 2“beup”代get up 3“beback(to)”代return to,come back to,go back to 4“be here (there)”代come(arrive,reach,get) here或go (arrive,reach,get) there等等 d)用“be介词短语”代终止性动词 1.“be in/at +地点”代替go to /come to 2.用be in the army 代替join the army 3.“be in/at +地点”代替move to 常用瞬间动词变延续性动词表: 1. have arrived at/in sw. got to/reached sw. come/gone/moved to sw. have been in sw./at相应的介词 2. have come/gone back/returned have been back 3. have come/gone out have been out 4. have become have been 5. have closed / opened have been close/open 6. have got up have been up; 7. have died have been dead; 8. have left sw. have been away from sw. 9. have fallen asleep/got to sleep have been asleep; 10. have finished/ended/completed have been over; 11. Have married have been married; 12. have started/begun to do sth. have done sth. ; 13. have begun have been on 14. have borrowed/bought have kept/had 15. have lost havent had 16. have put on have worn 17. have caught /get a cold have had a cold; 18. have got to know have known 19. have/has gone to have been in 20. have joined/have taken part in the league/the Party/the army have been a member of/ have been in/have been the Partys member/the league member/the soldier 注意: 1.现在完成时不能单独与准确时间连用,(如表示过去的时间状语) 如yesterday(morning、afternoon),last(morning、afternoon)等,除非与for,since连用. 2.现在完成时往往同表示不确定的过去时间状语连用 ,如already(肯定), yet(否定,疑问), just, before, recently,still, lately等: He has already obtained(得到获得) a scholarship(奖学金). I havent seen much of him recently (lately). We have seen that film before. Have they found the missing child yet ? 3. 现在完成时常常与表示频度的时间状语连用, 如often, sometimes, ever, never, twice等: Have you ever been to Beijing I have never heard Bunny say anything against her. I have used this pen only three times. It is still good. 4. 现在完成时还往往可以同包括现在时间在内的时间状语连用, 如now, these days/weeks/months/years, this morning/week/month/year, just, today, so far等: Peter has written six papers so far. There has been too much rain in San Francisco this year.5.现在完成时的完成用法 现在完成时的完成用法指的是动作发生在过去某一时刻并已结束,但该动作对现在产生了影响,与现在情况具有因果关系。 例如:He has turned off the light.他已把灯关了。(动作结束于过去,但说明的是现在的情况-灯现在不亮了。) 现在完成时完成用法的特点是动作不延续,因此,该时态只能与表示不定的过去时间状语(如:already,yet,before,recently等)、频度时间状语(如:never,ever,once等)、包括现在时刻在内的时间状语(如:this morning month year.,today等)连用。 例如: Have you found your pen yet?你已找到你的钢笔了吗? 6.现在完成时的未完成用法 现在完成时的未完成用法指的是动作开始于过去某一时刻,一直延续到现在,或可能还要继续下去。 例如:He has lived here since 1978.自从1978年以来,他一直住在这儿。(动作起始于1978年,一直住到现在,可能还要继续住下去。) I have been in the army for more than 5 years.我在部队已经呆了五年多了。(动作开始于5年前,一直延续至今,有可能还要继续下去。) 此种用法的句中常需一个表示一段时间的状语(由since或for引导),或表示与现在时刻相连的时间状语(如:so far)等。 例如:I have heard nothing from him so far.到目前为止我没有他的任何消息。 注意:(1)现在完成时的未完成用法只适用于延续性动词,不可用于终止性动词,即瞬间完成或延续时间很短的动词。如:come,go,arrive,leave,join,become,die等。 8.一段时间+has passed+since从句 9. 现在完成时常和短语 up to now /till now, so far (意思是从过去某一确定的时间一直延
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