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文档简介
第61讲现在完成时（带有since
和for）讲师：陈晓群本节导航since
的用法for
的用法知识精讲So
it
has
been
back
to
the
motherland
for
many
years.for用于现在完成时态时，应与一段时间连用。肯定句中谓语动词必须是可延续性动词。e.g.
I
have
waited
for
you
here
for
2
hours.Mr.
Wang
has
worked
in
this
factory
for
nearly
20years.We
haven’t
seen
each
other
for
so
manyyears!since“自从”用于现在完成时态，肯定句中的谓语动词必须是可延续性动词。+过去的时间+过去的动作+一段时间+agoe.g.
They
have
lived
in
this
house
since
2010.Tom
has
read
in
the
sun
since
he
got
up
in
the
morning.My
father
has
been
a
driver
since
23
years
ago.=
My
father
has
been
a
driver
for
23
years.have
come/gone/
arrived
at
/reached/
got
to
→
have
beenin/athave
left
→
have
been
away(from…)have
bought
→
have
had; have
borrowed
→
have
kepthave
opened
→
have
beenopen; have
closed→have
beenclosedhave
joined
thearmy/Party/League
→
have
been
a
soldier/
Partymember
/League
memberI
have
bought
a
new
CD.I
have
had
this
new
CD
since
I
got
some
money
last
time.This
drug
shop
has
opened/closed.This
drug
shop
has
been
open/closed
since
2003.My
brother
has
joined
the
army.My
brother
has
been
a
soldier
for
3
years.典型应用He
got
to
Beijing
five
minutes
ago.He
has
been
in
Beijing
for
five
minutes
.I
became
a
teacher
in
2000.I
have
been
a
teacher
for
many
years.Thedoor
opened
at
six
in
themorning.Thedoor
has
been
open
for
sixhours.He
left
Fuzhou
just
now.He
has
beenaway
from
Fuzhou
for
five
minutes.5.
My
grandpa
died
in
2002.beenMy
grandpa
has dead
for
many
years.6.
They
borrowed
it
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