上海教育出版社英语八年级上册

短暂性动词的用法：
1. 短暂性动词可以用于现在完成时，但是它的 肯定式不能与表示一段时间的for或since或 how long等状语连用。
e.g.I have borrowed the book.(√) I have borrowed the book for a week.(×)
2. 而在否定句中，短暂性动词也可以用表 示一段时间的状语来修饰。
2.My father left Gucheng last week.
My father has been awGauycheng from
3.The factory opened in 1996.
The factory has beensinocpe e1n996.
a weefko. r
e.g. I haven’t heard from Uncle Wang for a long time.
3.用一般过去时来表达。
e.g. He came back a week ago.
4.用“It is ﹢一段时间﹢since…”句型来表达。
e.g. It is a week since he came back.
短暂性动词转换成延续性动词，常用的有以下几个：
buy
haBiblioteka Baidue
leave be away
come to be in go to be in
finish be over die be dead
got to be in
marry be married
be in join
open be open
be a soldier/ member of close be closed
borrow keep
go there be itnhere
begin be on
come here be here
get out be out
fall asleep be asleep
I have bought the book. =I bought the book a week ago. =I have had the book for a week. =I have had the book since a week ago.
巩固练习：（同义转换，每空一词）
１.Li Lei joined the army three years ago.
Li Lei has betheenarimny threesyineacres ago. Li Lei hasa _____soldtiherree yefaorrs.
It’thsreebyeeaerns sLiinLceei joined the army.
The film ______ for ten minutes.
A. has begun
B. has been on
延续性动词是指动作发生后还可以延续一段时间 或者相当长的一段时间。
常见的延续性动词有：live, work, study, learn, sleep, stay等， 延续性动词可以和表示一段的时间状语连用。
e.g. They have lived here for 10 years.
短暂性动词也称做终止性动词、非延续性动词 或瞬间动词，表示动作不能延续，只是一瞬间就 结束的动作。
常见的短暂性动词有：come, go, arrive, reach, see, hear, close, open, leave, begin, start, lose, buy, fall, join, die, become, borrow, get up等．