供你参考：

　　延续性动词与非延续性动词之间的转换：leave---beaway,borrow---keep,buy---have,begin/start---beon,die---bedead,finish---beover,join---bein+组织机构,beamemberof+组织机构,opensth---keepsthopen,fallill---beill,getup---beup,catchacold---haveacold,comehere---behere,gothere---bethere,become---be,comeback---beback,fallasleep---beasleep,getto/arrive/reach---be(in),leave---beawayfrom,gettoknow---know,go(get)out→beout,puton→wear；catchacold→haveacold等.例:Theoldmandied4yearsago.----Theoldmanhasbeendeadfor4years.----Itis4yearssincetheoldmandied.----Fouryearshaspassedsincetheoldmandied.HejoinedtheParty2yearsago.-----HehasbeeninthePartyfor2years.Iboughtthebook5daysago.----Ihavehadthebookfor5days.