Question

1.They have been married for three years.是完成时的被动语态吗？

如果不是，要怎么分辨？还有这句 2. I have been asleep for 2 hours. 3.He has been away from Beijing for three years. 非延续性动词常用有哪些？ 非延续性动词转化为延续性要怎么转化？ 4.They were married last year.这句是被动语态吗？

Answer 1

1,2,3句都是现在完成时而非完成时被动语态。判断句子是主动还是被动可以根据句意或者动词形式，如果是被动been后面一定跟的是过去分词。

"非延续性动词也称终止性动词、瞬间动词　　表示不能延续的动作,这种动作发生后立即结束。 如:open, die, close, begin, finish, come, go, move, borrow, lend, buy,arrive等。
非延续性动词在肯定句中与表示时间点的状语连用，如：two years ago; at 5 o'clock;
例:He died 5 years ago.
否定的终止性动词可以与表示时间段的时间状语连用。例:I haven't left here for 3 years. I haven't heard from him for 3 weeks.
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, 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,get married---be married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."
-------百度百科

"married"是表语表状态，不是被动语态。

Answer 2

这四句话都是系表结构的句式：主语+系动词+表语，跟被动语态没有关系
1.married adj.已婚的
2.asleep adj.熟睡的
3.away adj.离开的