供你参考：
延续性动词与非延续性动词之间的转换：leave --- be away,borrow --- keep,buy --- have,begin/start --- be on,die --- be dead,finish --- be over,join --- be in+组织机构,be a member of+组织机构,open sth --- keep sth open,fall ill --- be ill,get up---be up,catch a cold --- have a cold,come here --- be here,go there --- be there,become --- be,come back --- be back,fall asleep --- be asleep,get to/ arrive/reach --- be (in),leave --- be away from,get to know --- know,go (get) out →be out,put on→ wear；catch a cold →have a cold等.例:The old man died 4 years ago.----The old man has been dead for 4 years.---- It is 4 years since the old man died.----Four years has passed since the old man died.He joined the Party 2 years ago.-----He has been in the Party for 2 years.I bought the book 5 days ago.---- I have had the book for 5 days.
