初中英语哪些情况要用延续性动词

现在完成时或者过去完成时要用延续性动词。例如：I have bought this book。我买了这本书 但是要说明买了这本书有3年了就要用buy的延续性动词have。I have had this book for three years。下面是一些短暂性动词和延续性动词：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。没有了楼主。这些例句全都是现在完成时的句子你发现了吗?比如 买,总不会一直买这本书买三年吧。用延续性动词的意义就在于此。lz你要相信我 我初三了 不会连这个都不知道 只有现在完成和过去完成时需要用延续性动词