(共23张PPT)
What
is
he
doing?
He
is
writing.
They
are
playing
football.
现在进行时
含义:
表示现在正在进行的动作。
结构:
is/am/are
+
doing
例句:
I
am
having
an
English
class
now.
1.
现在分词的构成
1)
一般动词在词尾加-
ing,
如go
–
going。
2)
不发音字母e结尾的动词,
去e再加-ing。come
–
coming
3)
以重读闭音节结尾的动词,
如果末尾以一个辅音字母结尾,
应先双写这个字母,再加ing,
x和w结尾的除外。
get
-
getting??
swim
–
swimming
4)
以字母ie结尾的动词,
变ie为y,
再加ing。
????die→
dying????????????
lie→
lying
Add
–ing
to
the
following
verbs.
1.
ask
—
look
—
carry
—
asking
looking
carrying
2.
close
—
take
—
ride
—
closing
taking
riding
3.
swim
—
get
—
sit
—
swimming
getting
sitting
4.
put
—
begin
—
travel—
putting
beginning
travelling
at
10
o’clock
yesterday
morning
Look
and
say.
Lin
Tao
He
was
playing
basketball
at
10:00
yesterday
morning.
What
was
Li
Lei
doing
at
11:00
last
Sunday
morning?
Li
Lei
He
was
playing
computer
games
at
11:00
last
Sunday
morning.
What
was
Lily
doing
at
this
time
yesterday?
Lily
She
was
painting
at
this
time
yesterday.
What
were
the
twins
doing
when
you
saw
them?
the
twins
They
were
dancing
when
I
saw
them.
过去进行时的定义
过去进行时常表示过去某一时刻或过去某一阶段内正在进行的动作。
Summary:
1.
过去进行时的构成:
主语+
was
were
+
动词-ing
过去进行时
含义:
表示过去某个时刻正在进行的动作。
结构:
was/were
+
doing
例句:
I
was
having
an
English
class
at
this
time
yesterday.
现在进行时
含义:
表示现在正在进行的动作。
结构:
is/am/are
+
doing
例句:
I
am
having
an
English
class
now.
2.
过去进行时和现在进行时的区别
(at
this
time
yesterday)
Mary
read
at
this
time
yesterday.
was
ing
(at
8:00
last
night)
He
writing
at
eight
last
night.
was
(at
four
yesterday
afternoon)
They
play
football
at
four
yesterday
afternoon.
were
ing
What
were
they
doing
at
seven
last
night?
They
were
watching
TV
at
seven
last
night.
What
was
Li
Lei
doing
when
the
teacher
came
in?
He
was
drawing
when
the
teacher
came
in.
My
mother
was
cooking
while
my
father
was
washing
his
car.
用所给动词的适当形式填空
1.I______
(play)
computer
games
at
ten
last
night.
2.Jim’s
family
______
(have)
supper
when
I
came
in.
3.It
_______
(rain)
hard
at
this
time
yesterday.
4.What
____you
____(do)
while
I____
(make)
a
model
plane?
5.we
________(have)
a
P.E
class
at
four
yesterday
.
was
playing
were
having
was
raining
were
doing
was
making
were
having
The
Past
Continuous
tense
用法:
was/
were
+
doing
+过去某一具体时刻
过去进行时
+
while
+过去进行时
过去进行时
+
when
+
一般过去时