现在完成时现在完成时 现在完成时构成构成用法用法现在完成时与一般过去时的区别现在完成时与一般过去时的区别Have been to 与与 Have gone to延续性动词与非延续性动词延续性动词与非延续性动词 NO.1finishfinishedfinished 原形原形过去式过去式过去分词过去分词loselostlostseesawseen-GOShe has finished her homework.We have seen the film.I have lost my wallet.GO助动词助动词 have（has）+ 过去分词过去分词mainI have lost my watch.我把我的手表给丢了我把我的手表给丢了. (丢的动作对现在来说已经过去丢的动作对现在来说已经过去, 对现在造成的结果就是手表没对现在造成的结果就是手表没有了有了,还找不到还找不到.)1.表示表示过去发生过去发生或或已经完成已经完成的动作的动作对现在对现在造成的造成的影响或结果影响或结果.常与常与yet（已经已经，还还，用于疑问或否定句），用于疑问或否定句）, already（已经已经，用于肯，用于肯定句）定句）, just（刚刚刚刚）, ever（曾经曾经）和）和never（从来不从来不）等副词连用）等副词连用.)I have lived here since 2004.I have lived here since I came here.She has been in Canada for seven years.2.表示表示过去已经开始过去已经开始, 持续到现在持续到现在的动作或状态的动作或状态,可以和表示可以和表示从过去某一时刻延续到现在的从过去某一时刻延续到现在的一段时间一段时间的状语连用的状语连用.表示持表示持续动作或状态的词应是续动作或状态的词应是延续性动词延续性动词.常与常与since + 过去的时过去的时间点，间点，for + 一段时间，一段时间，so far 等时间状语连用。等时间状语连用。-GOHave you finished your homework yet?A: B: No, I havent finished it yet.B你已经完成你的作业了吗？你已经完成你的作业了吗？A: B: 不不,我还没有完成作业我还没有完成作业A: Have you finished your homework yet?B: I have already finished it.BA: 你已经完成作业了吗？你已经完成作业了吗？B: 我已经完成了我已经完成了A: Have you finished your homework yet?B: Ive just finished it.BA: 你已经完成作业了吗？你已经完成作业了吗？B: 我刚刚完成了我刚刚完成了A: Have you ever been to Canada? B: No, Ive never been there.BA: 你曾经去过加拿大吗？你曾经去过加拿大吗？B: 我从来没有去过那里我从来没有去过那里1. - Have you _ been to Beijing? - No, _.2.I have _ finished my work.3.I have finished my work_.4.Have you finished your work_?5.She has taught English _ 10 years.6.He has worked in the factory _three years ago.7.I have learnt 2000 English words_ _.everneverjustalreadyyetforsincejust, yet; ever, never, alreadysince, for, so far.Use the words in the box to complete the following sentences-so farmainI have lost my watch.I lost my watch. 现在完成时和一般过去时虽然都是现在完成时和一般过去时虽然都是表示过去的动作或状态表示过去的动作或状态,但现在完成时但现在完成时表示过去发生的某一动作对现在造成的表示过去发生的某一动作对现在造成的影响或结果影响或结果,强调与现在的关系强调与现在的关系,不能够不能够与与 in1998 ,three days ago 和和just now 等明确的过去的时间状语连用等明确的过去的时间状语连用. GOGO 而一般过去时只是表示动而一般过去时只是表示动作是发生在过去作是发生在过去,和现在并没和现在并没有什么直接与必然的联系有什么直接与必然的联系, 因此一般过去是可以和表示因此一般过去是可以和表示明确的过去的时间状语连用明确的过去的时间状语连用.A:火车已经开走了火车已经开走了.B:什么时候开走的什么时候开走的?A:半个小时之前开走的半个小时之前开走的.A:这本书我已经买了两年了这本书我已经买了两年了.B:你在哪儿买的你在哪儿买的?A:在深圳买的在深圳买的.A:你看过这部电影吗你看过这部电影吗?B:看过看过.A:什么时候看的什么时候看的.B:上周星期天看的上周星期天看的.A: The train has left.B: When did it leave.A: It left half an hour ago.A: have you seen the film?B: Yes, I have.A: When did you see it?B: I saw it last Sunday.A: Ive had the book for two years.B: Where did you buy it?A: I bought it in Shenzhen.main-TranslationHave been to have gone toEx.曾经到过某地曾经到过某地已经去了某地已经去了某地He has been to Beijing.He has gone to Beijing.（他现在已经不在北京了）（他现在已经不在北京了）（他可能在去北京的路上，（他可能在去北京的路上，或是已到北京，反正人现或是已到北京，反正人现在不在说话现场）在不在说话现场）Fill in the blanks withhave / has been (to) have / has gone (to)-1.- Where is your father? - He isnt here now. He _ _ to work.2. - _ you ever _ to England? - No, I _ _ there so far, but I _ _ to America twice. has gonehave beenHavebeen havent beenmain非延续性动词非延续性动词又叫又叫终止性动词终止性动词或或瞬间动词瞬间动词-不不能和一段时间连用能和一段时间连用-延续性动词延续性动词-可以和一段时间连用可以和一段时间连用We have been in the classroom for half an hour.We have come to the classroom for half an hour.His grandmother has died since three years ago.His grandmother has been dead since three years ago.We have to the classroom.His grandmother has d.GOcomedie非延续性动词与延续性动词的转换非延续性动词与延续性动词的转换come / go -be indie -be deadbuy - haveborrow -keepopen -be openclose - be closedstart / begin -be onjoin - be a member of + 组组织织be in + 组织组织Ex.I have bought the new dictionary for a week. I have had the new dictionary for a week.我买我买一本新词典已有一星期了。一本新词典已有一星期了。They have come here for two days.They have been here for two days.他们来这儿已经两天了。他们来这儿已经两天了。He has joined the League for two years.He has been a member of the League for two years.他已他已入团两年了。入团两年了。The tall man has been dead for several years.The tall man has died for several years.那高个子的人已经死了几年了。那高个子的人已经死了几年了。main1.She isnt here now because she _ the zoo. A.has been to B. have gone to C. has gone to2.The Greens _ Guilin twice. A. have been to B. have been in C. has been in3.Lily has made lots of friends since she _ here. A. come B. has been C. came D. coming4.My parents _ in Beijing since 1995. A. are living B. have lived C. lived5.His grandma _ for 2 years.A.died B. has died C. was dead D. has been deadExerciseCACBD