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1、 現(xiàn)在完成時現(xiàn)在完成時表示過去發(fā)生的某一動作對現(xiàn)在造成的影響或產(chǎn)生的結(jié)果.現(xiàn)在完成時這一時態(tài)強調(diào)是過去動作與現(xiàn)在的聯(lián)系,也就是強調(diào)現(xiàn)在的強調(diào)現(xiàn)在的影響和結(jié)果影響和結(jié)果.have/has+過去分詞 before,by now(so far),once,twice,just,recently yet(否否/疑疑),already(肯肯),ever,never,all ones life,in/during the past/last 5 years,1.I _(have)lunch already 2._ the train_(arrive),yet?3.Tome _ never_(be)to C

2、hina.4.The twin _just _(see)my father.5.The twins _(see)my father just now.6.Many tallbuildings_(build)in the past 5 years.have hadarrivedhasbeenhasseensawhave been builtHas 用法二用法二：for+一一段時間段時間 since+時間點時間點 since+句子（一般過去時）句子（一般過去時）E.g.Kate has lived here for 3 years.Kate has lived here since 3 years

3、 ago.Kate has lived here since she came to China.表示過去某個時間開始的動作表示過去某個時間開始的動作或存在的狀態(tài)，或存在的狀態(tài)，一直持續(xù)到現(xiàn)一直持續(xù)到現(xiàn)在并可能還將持續(xù)下去在并可能還將持續(xù)下去。動詞。動詞使用使用延續(xù)性動詞延續(xù)性動詞。常與。常與forfor或或sincesince引導(dǎo)的時間連用引導(dǎo)的時間連用 arrive/come/go to die become a borrow leave/move buy open join start/begin finish/end catch a cold get up get to know ge

4、t out close wake up go to sleep become interested in be in be deadhavekeepbe away/be out be abe in/a member ofbe openbe onbe overhave a coldbe upknowbe outbe closedbe awakebe asleep/sleepbe interested in His grandfather has died.(for 2 years)The football match has begun.(since9:00a.m)The twins have

5、joined the army.(since they are 18years old)My teacher has just left Nanjing.(for 3 days)His father has been dead for 2 years.The football match has been on since 9:00 a.m.The twins have been soldiers/been in the army since they are 18years old.My teacher has been away from Nanjing for 3 days have/h

6、as gone to:已經(jīng)去了已經(jīng)去了某地或人還在某地或人還在途中途中，人人還沒有返回還沒有返回；have/has been to:曾經(jīng)去過曾經(jīng)去過某地，現(xiàn)在某地，現(xiàn)在已經(jīng)回已經(jīng)回來了來了,后面可接表示后面可接表示“次數(shù)次數(shù)”的狀語的狀語;have/has been in:表示某人表示某人“已在某地停留一已在某地停留一段時間，現(xiàn)仍在那里段時間，現(xiàn)仍在那里”，其后常帶，其后常帶表示一段時間表示一段時間的狀語。的狀語。Tom 在哪兒？他去書店買書了。我在北京待了5年了。Jack 去過上海兩次了-Where is Tom?-He has gone to the bookshop to buy som

7、e books.I have been in Beijing for 5 years.Jack has been to Shanghai twice.Correcting 1.I have borrowed the book for 3 months.2.My bother has joined the army since he was 18.3.Jack and Tom have lived here since 5years.4.The film has been on since I have come to the cinema.5.When has Mr.Li caught a bad cold?have kepthas been in/been a member of the armysince 5 years ago/for 5 yearscame didcatch 6.Ten years have passed since they got married.7.Jim has gone to Beijing for 2 years.8.What time have the factory opened?9.I have gone to Chunhua Middle School twicehashas been indidopenbeen to