,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,Present perfect tense&,present continuous tense,Present perfect tense&,1,past,now,Yesterday,we,cleaned,the,classroom.,Now,the classroom,is clean because,we,have cleaned,it.,用法,1,强调,过去发生的动作,对,现在产生的,结果或影响,现在完成时,past now Yesterday,weNow,t,2,1.My father,bought,many books for me yesterday.,Now,I have a lot to read because _,2.I,saw,this film last week.,Now,I know this film because I_.,3.I,did,my homework yesterday.,Now,I can give it to the teacher because I_,my father,has bought,many books for me.,have seen,it before,have done,it.,1.My father bought many books,3,“仍然，还”用在疑问句和否定句中，放在句末。,I havent read this book,yet,.,Have you had breakfast,yet,?,already:,Yet:,“已经”通常用于肯定句中,放在句中。,I have,already,read this book.,有时，也用在疑问句中表示惊讶。,Have you eaten up all the food,already,?,“仍然，还”用在疑问句和否定句中，放在句末。alread,4,“从来不”用在否定句中,放在句中。,Is he famous?I have,never,heard of him.,ever,never,“曾经”通常用于疑问句和肯定句中,放在句中。,I have,ever,seen this film.,Have you,ever,been to the USA?,“从来不”用在否定句中,放在句中。evernever“曾经,5,“,以前”用在完成时中，放在句末。,have never read this kind of books,before,.,just,before,“刚刚”用在陈述句中,放在句中。,I have,just,bought a novel,。,“以前”用在完成时中，放在句末。justbefore“刚刚,6,She,began to,work,in 2005.,She still works here now.,She,has,worked,at this school,for 9 years.,She began to work in 2005.,7,now,past,I,began to,teach,English at this,school five,years ago.,I,have taught,English at this,school for five years.,用法,2,：,过去发生的动作一直,延续,到现在。,now past I began to teach I ha,8,1.I am a doctor.I began to work when I was 22.Now,I am 26.I _ for four years.,2.We went to the USA last Monday.Today is Monday.We _ (stay)in the USA since last Monday.,have worked,have stayed,1.I am a doctor.I began to w,9,since,and,for,The woman has worked at this school,for 2 years.(since two years ago),since 2 years ago,since 1998,since she came to the school),for+,时间段,since+,时间点,for 2 years/a long time,since and forThe woman has wor,10,一、用,for,和,since,填空。,_,three hours,_three oclock,_two days,_yesterday afternoon,_I came here,_last Sunday,_,a week,_a long time,_1997,_two weeks,_three years ago,_ last month,for,since,for,since,since,since,for,for,since,for,since,since,一、用for和since填空。_three hou,11,Exercise,根据所给情况，用,just,already,或,yet,造句。,1,.After lunch you go to see a friend at her house.She saysWould you like something to eat?You say:No,thank you._(have lunch),2,.Joe goes out.Five minutes later,the phone rings and the caller says Can I speak to Joe?You say:Im afraid _.(go out),he has just gone out,Ive just had lunch.,Exercisehe has just gone outI,12,3,.,You are eating in a restaurant this evening.The waiter thinks you have finished and starts to take your plate away.You say:Wait a moment!_,(not/finish),4,.You are going to a restaurant this evening.,You phone to reserve(,预定）,a table.Later your friend says Shall I phone to reserve a table?You say:No,_ it (do),I havent finished it yet.,I have already done,3.You are eating in a restaura,13,1.,现在完成时用来表示,过去发生或已完成的动作或状态,对现在造成的影响或结果,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 lost,my wallet.(,含义是,:,现在我没有钱花了,.),Jane,has just had,breakfast.(,含义是,:,简现在不饿了,.),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,),1.现在完成时用来表示过去发生或已完成的动作或状态对现在造成,14,2.,现在完成时可以用来表示,发生在过去某一时刻一直持续到现在的动作和状态,常与表示,持续的时间状语连用,.,表示持续动作或状态的动词多是,延续性动词,。,I,havent seen,her,these days,.,Mary,has been,ill,for three days,.,I,have lived,here,since 1998,.,2.现在完成时可以用来表示发生在过去某一时刻一直持续到现在,15,3.,现在完成时往往同表示不确定的过去时间状语连用,如,already,yet,just,before,recently,still,lately,等标志词,He,has,already,got,a chance to go abroad.,I,havent seen,much of him,recently(lately).,We,have seen,that film,before,.,Have,they,found,the missing child,yet,？,3.现在完成时往往同表示不确定的过去时间状语连用,如alr,16,4.,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,on several occasion,等,:,Have,you,ever,been,to Beijing,？,I,have,never,heard of,Bunny.,I,have used,this pen only,three times,.,George,has met,that gentleman,on several occasions.,4.现在完成时常常与表示频度的时间状语连用,如often,17,5.,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,just,today,this morning/week/month/year,up to these few days/weeks/months/years,up to present,so far,等,:,Peter,has written,six poems,so far,.,Man,has,now,learned,to make use of natural materials.,There,has been,too much rain in San Francisco,this year,.,Up to these weeks,everything,has been,successful.,5.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,18,have(has)gone,和,have(has)been,的区别,1.have(has)gone,表示“已经去某地了”,She has gone to Shanghai.(,她可能已在去上海的路上，或已到上海，总之现在不在这里。,),2.have(has)been,表示“曾经去过某地”,She has been to Shanghai three times.(,她已经不在上海，只说明她曾经去过。,),have(has)gone和have(has)bee,19,非延续性动词不能与时间段连用：,go/come/begin/start/die/buy/borrow/sell/leave/arrive/,receive/become,等词语是,瞬间动词表示的动作是一时的，不能延续，不能与,for,、,since,等表示一段时间的词连用，也不能用于,how long,引导的疑问句中。,如不能说：,He has borrowed the book for two months.(),但可以说：,He has,kept the book,for 2 months.,或：,It has been 2 months since he borrowed the book.,或：,Two months has passed,since he borrowed the book.,这些瞬间动词常与它对应的可以表示时间段的词语进行互换。,becomebe borrowkeep buyhave,begin(start)be on open