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Didyouseethefilmyesterday?Isawthefilmyesterday.Ihaveseenthefilmbefore.SoIdon’twanttoseethisfilmtoday.Theboydidhishomeworklastnight.Theboyhasdonehishomeworkalready（已经）.Sohedoesn’thavetodohishomeworkthismorning.ThisisapictureofDagangPark.IvisitedtherelastSunday.IhavevisitedDagangParkalready.SoIknowsomeinterestingplacestherenow.结构：havedone(动词过去分词)hasdone(动词过去分词)Ihaveseenthefilmbefore.hasdonehishomeworkalready.1我之前已经看过这部电影了.I__________(see)thefilmbefore.2这个男孩已经做完作业了.Theboy__________(do)theHomeworkalready.3她已经参观过大岗公园了.She_________(visit)DaguangParkalready.haveseenhasdonehasvisited(一)谈论过去已做的事情对现在造成的影响,常与以下单词连用:现在完成时的用法already（已经）yet（仍然）ever(曾经）never（从不）just（刚刚）before（以前）1.Deming_____thisfilmbefore.A.sawB.haveseenC.hassawD.hasseen2.Theseteachers_____ever___us.A.has,teachB.has,taughtC.have,taughtD.have,teached√√3._____sheever_____inHaiouMiddleSchool?()A.HasstudyedB.HasstudiedC.HavestudiedD.Havestudy4.They_____thehomeworkyet.A.hasn’tfinishedB.haven’tfinishC.hasn’tfinishD.haven’tfinished√√现在完成时的用法(二)谈论过去某一动作一直持续到现在。常与以下词组连用：since1990,（自从）for10years（持续）liveinGreece/since(自从)2006ShehaslivedinGreecesince2006.(从2006年起，她一直住在希腊，现在还住在那里)beaguard/for10yearsHehasbeenaguardfor10years.(他从过去一直到现在，当了10年门卫)1我已经做了12年老师.Ihavebeenateacherfor12years.2我们已经在灵山中学学习了1年.WehavestudiedatLingshanMiddleSchoolfor1year.3自从他出世后,他一直住在灵山.HehaslivedinLingshansincehewasborn.(1)我从2006年就在这工作了。I___________(work)here______2006.(2)他已经当了十年的警察了。He_________(be)apoliceman_____10years.(3)他们已经学了6年英语。They__________(learn)English_____6years.haveworkedsincehasbeenforhavelearntforHaveyoueverbeentoBeijing?Yes,Ihave./No,Ihaven’t.HowlonghaveyoulearnedEnglish?IhavelearnedEnglishfor4years.Wheredoyoulive?IliveinLingshan.Howlonghaveyoulivedthere?Ihavelivedtheresince…/for…years.过去某时发生的事情一直持续到现在ThePresentPerfectTense(现在完成时)Ihavebeenateacherfor10years.Ihavenotbeenateacherfor10years.Haveyoubeenateacherfortenyears?过去的已做的事情对现在造成的影响Shehascleanedtheroom.Shehasnotcleanedtheroom.Hasshecleanedtheroom?*现在完成时的肯定结构：have/hasdone…*现在完成时的否定结构：have/hasnotdone…*现在完成时的一般疑问句结构：Have/Has…done…?*肯定回答：Yes,…have/has.否定回答:No,…haven’t/hasn’tpaintthechair.12danceTheboy______________________.Theboy______________________._____theboy_________________?Yes,__________./No,___________.paintthechair.haspaintedthechairhasn’tpaintedthechairHaspaintedthechairhehashehasn’tThegirls______________________.Thegirls______________________.______thegirls________________?Yes,__________./No,____________.havedancedhaven’tdancedHavedancedtheyhavetheyhaven’tExercises:写出下面动词的过去式和过去分词1.clean;2.close;3.study;4.stop;5.buy;6.eat;7.grow;8.cut;cleanedcleanedclosedclosedstudiedstudiedstoppedstoppedboughtboughtateeatengrewgrowncutcut9.have;10.see;hadhadsawseen___________________规则___________________________________________________________不规则动词（详见书P123）二动词的过去分词1.+ed2.e+d3.辅音+y→i+ed4.元音＋辅音→双写+ed三alreadyandyetShehasalreadycleanedtheroom.Shehasn’tcleanedtheroomyet.*already用在_______句中，_________...