作业帮begin 是瞬间动词 为什么还有had begun的用法?
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/28 13:23:33
begin 是瞬间动词 为什么还有had begun的用法?
begin既然是瞬间动词,为什么还可以用在完成时态中?
begin既然是瞬间动词,为什么还可以用在完成时态中?
egin的确是瞬间动词,它完全可以用于现在完成时态,表示“……已经开始”.例如：When I got to the cinema,the film had already begun.（我到达影院时,电影已经开始了.）只不过瞬间动词不能够与表示一段时间的状语(如：for three days,since I came here等）连用,因为瞬间动词不能够延续；若要表示“……开始多久了”,常用be on表示,如：电影已经开始半个小时了.(The film has been on for about half an hour.) 类似的还有：
(1)I have bought a book.我买了一本书.
购买 buy ——have（拥有）
I bought the book two days ago.
I have had the book for three days.
(2)I have already borrowed a pen.我已经借来了一支钢笔.
借来borrow——keep（保存、保留）
I borrowed the pen last week.
I have kept the pen for a week.
非延续性动词绝对不可以和表示段时间的状语连用,若表示延续性意义,可以转换其他方式或用其他类似的词（或词组）.再如：
他入党三年了.
可译为：
He has been a Party member for three years.
He has been in the Party for three years.
It's three years since he became a Party member.
He became a Party member three years ago.
(1)I have bought a book.我买了一本书.
购买 buy ——have（拥有）
I bought the book two days ago.
I have had the book for three days.
(2)I have already borrowed a pen.我已经借来了一支钢笔.
借来borrow——keep（保存、保留）
I borrowed the pen last week.
I have kept the pen for a week.
非延续性动词绝对不可以和表示段时间的状语连用,若表示延续性意义,可以转换其他方式或用其他类似的词（或词组）.再如：
他入党三年了.
可译为：
He has been a Party member for three years.
He has been in the Party for three years.
It's three years since he became a Party member.
He became a Party member three years ago.
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