现在完成时--短暂性动词变延续性动词Word文档下载推荐.doc
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⑴
for+一段时间,
如:
for2years;
⑵
since从句,
如sincehecamehere;
since+过去时间点名词,如sincelastyear,since5daysago。
例:
He
haslived
here
for6years.
Youcan
keep
thebook
for5days.
二.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等。
非延续性动词在肯定句中与表示时间点的状语连用,如:
twoyearsago;
at5o'
clock;
He
died
5years
ago.
三.延续性动词与非延续性动词之间的转换:
(考试重点,学生易错。
)
例:
left
fiveminutes
ago.
=
Hehas
beenaway
for
fiveminutes.
这句话的意思是指他离开的动作是5分钟之前发生的,是过去时。
也就是说从他离开到现在已经有五分钟了,这个动作是延续的,要用现在完成时,并且要把原来的短暂性动词
改为延续性动词。
一些短暂性动词及相应的延续性动词:
arrive(getto/reach)→behere(in)
begin(start)→beon
die→bedead
comehere(back)→behere(back)
leave→beaway(from)
fallill(sick,asleep)→beill(sick,asleep)
getup→beup
go/getout(there)→beout(there)
finish→beover
puton→wear或beon
open→beopen(keepsthopen)
join→bein或beamemberof…+组织机构
close→beclosed
gotoschool→beastudent
borrow→keep
buy/get→have
catch(acold)→have(acold)
gettoknow→know
begintostudy→study
cometowork→work
moveto→livein
finish/end→beover
cometo→bein
sitdown→beseated
marry→bemarried
dress→bedressed
become→be