1、现在完成时Lisa _ already_(be)a famous singer.We _ _(watch)the MV yet.They _ just _(release)a new song.(发行)has been have released havent watched主语(1)I have lost my pen.(2)He has washed his teeth.(3)They havent seen the film.我丢失了我的笔。我丢失了我的笔。他已经洗了他的牙齿。他已经洗了他的牙齿。他们还没看过电影。他们还没看过电影。一、含义：一、含义：表示过去已经发生的动作对表示过去已经
2、发生的动作对现在现在造成的造成的结果或影响结果或影响。（强调（强调结果或影响）结果或影响）二、句型结构：二、句型结构：主语+have+V过去分词（Vpp）三、时间状语：三、时间状语：already,just,yet助动词：助动词：has/havent/hasnt（找不到笔）（找不到笔）（牙齿不用再洗）（牙齿不用再洗）（不了解电影内容（不了解电影内容）主语含义：含义：表示过去已经发生的动作对现在造成的结果或影响。表示过去已经发生的动作对现在造成的结果或影响。句型结构：句型结构：主语+have+V过去分词（Vpp）时间状语时间状语：already yet justThey have _(see)t
3、he cartoon.I have _(watch)the match.You have _(cook)dinner!动词如何变化：动词如何变化：(1)(1)规则动词：规则动词：一般情况直接加一般情况直接加-ed-ed 以以e e结尾直接加结尾直接加d d 以以“辅音字母辅音字母+y”+y”结尾变结尾变y y为为i i加加eded 辅元辅重读闭音节双写尾字母加辅元辅重读闭音节双写尾字母加eded(2)(2)不规则变化不规则变化:see have take make be find eat go begin comework cooklive liketry studystop planwork
4、ed lived tried stopped cooked liked studied plannedseentakenbeeneatenbegunhadmadefoundgonecome seenwatched cookedsawtookwaswereatebeganhadmadefoundwentcame四、动词变化规则I opened the door just now.（不清楚门是否开着）不清楚门是否开着）I have opened the door.（门是开着的）（门是开着的）I have seen the film.(了解电影的内容了解电影的内容)I watched the fil
5、m last week.(只说明上周看电影这件事，不涉及现在只说明上周看电影这件事，不涉及现在)He has eaten lunch.(已经吃过，现在不需要吃已经吃过，现在不需要吃)He ate lunch.(吃过，不确定现在还饿不饿吃过，不确定现在还饿不饿)1）一般过去时一般过去时表示过去某时发生的动作，强调过去动作，对现在表示过去某时发生的动作，强调过去动作，对现在无影响无影响；现在完成时现在完成时表示过去发生的动作，对现在造成的影响和结果，强调的是影响和结果表示过去发生的动作，对现在造成的影响和结果，强调的是影响和结果。2）一般过去时一般过去时 常与具体表示过去的时间状语连用常与具体表示
6、过去的时间状语连用;现在完成时现在完成时通常与模糊的时间状语连用，或无时间状语。通常与模糊的时间状语连用，或无时间状语。一般过去时的时间状语一般过去时的时间状语:yesterday last week ago in1990.in+过去时间过去时间 just now,in the past 现在完成时的时间状语现在完成时的时间状语:already,yet,just,ever,never,before,since,for,in the past/last few years Tom has written letters to his girl friends last night.TIP：若句子
7、中有过去时的时间副词若句子中有过去时的时间副词（如（如 yesterday,last week,in 1960）时，不能使用现在完成时，）时，不能使用现在完成时，要用一般过去时态。要用一般过去时态。Tom wrote letters to his girl friends last night.1.虽然这本书他刚读了三次，他还想再读一次。Though he has just read the book three times,he wants to read it again.2.昨天晚上他们举行了晚会。They held a party last night.3.约翰还没有找到女朋友。Joh
8、n hasnt found his girl friend yet.Where is Eric?He has gone to EricEric在去厕所的路上。Where have you been?!Ive been looking for you everywhere!Ive just been to the toilet Ive just been to the toilet.我刚刚去了厕所。He has gone to the toilet.Eric去了，未回Ive just been to the toiletIve just been to the toilet.我刚刚去了厕所。去了
9、，已回 have/has been to 指“去过某地”(表示主语曾“去过某地”,但现在已离开)。have/has gone to 指“去了某地”(表示主语现在“去了某地”,不在说话地点)have/has been in 指“逗留某地”(表示主语现在说话地点已经呆了一段时间)去了，已回去了，未回去了，待那Revision现在完成时一、含义：二、结构：三、时间状语：四、动词变化规则：注意（一）注意（二）Revision现在完成时一、含义：表示过去已经发生的动作对表示过去已经发生的动作对现在现在造成的造成的结果或影响结果或影响。二、结构：主语+have/has+Vpp(过去分词)三、时间状语：时间
10、状语：时间状语：already,just,yet四、动词变化规则：注意（一）注意（二）规则变化：规则变化：一般情况直接加一般情况直接加-ed-ed以以e e结尾直接加结尾直接加d d 以以“辅音字母辅音字母+y”+y”结尾变结尾变y y为为i i加加eded辅元辅重读闭音节双写尾字母加辅元辅重读闭音节双写尾字母加eded 不规则变化：不规则变化：see seen take taken be been eat eaten 一般过去时一般过去时 常与具体表示过去的时间状语连用常与具体表示过去的时间状语连用;yesterday,last year等。等。现在完成时现在完成时通常与模糊的时间状语连用，
11、或无时间状语。通常与模糊的时间状语连用，或无时间状语。already,never,ever等。等。have been to/have gone to/have been in 的区别去了已回去了未回去了待那Practice 1.-Is Tom at home?-No,he _to town.A.has been B.has gone C.goes D.will go 2.-You cant smoke here.-Sorry,I _the sign just now.A.dont see B.didnt see C.havent seen D.wont see 3.Will Mary go t
12、o the movies with us?-I dont think so.She _to go shopping.A.decides B.decided C.will decide D.has decided 4.I saw him in the library yesterday.He _a book at that moment.A.reads B.is reading C.was reading D.will read5.-Lily,why are you still here?School is over for half an hour.-Because I _my task ye
13、t.A.havent finish B.didnt finish C.have finished D.havent finished6.Why are you standing here,Mrs White?-Im waiting for my son.He _back from school.A.hasnt come B.wont come C.doesnt come根据句意,用适当的短语填空:1.Wheres your father?He has _ _ Shanghai.2.Have you ever _ _ South Korea?No,I havent.4.You can write to Bill.He has _ _ Japan.5.Where is Jim?He Wuhan.6.My parents the Great Wall twice.They like it very much.it very much.Practicegone to been to been inhas gone to have been toHomework
