-
第
11
讲
一般现在时
1
、定义:表示经常发生或习惯性的动作、状态。句中通常有
usually
,
often
,
ever
y
day
,
sometimes
,
always
,
at
weekends
,
on
Sundays<
/p>
等表示经常性时间的短
语。
2
、构成:
1
)当谓语是
be
动词时,一般现在时的构成:主语+
be
动词+其他
如:
I
am
a
student.
He
is
Jim
?
s
father.
They
are
from
Japan.
2
< br>)当谓语是行为动词时,一般现在时的构成:
①主语(非第三人称单数)+动词原形+其他
如:
I
often
watch
TV
at
the
weekends.
Mr
Green
and
Mrs
Green
like
collecting
stamps.
②
主
语
(
第
三
人
称
单
数
)
+
动
词<
/p>
的
第
三
人
称
单
数
形
式
+
其
他
如
:
Jim
usually
visits
his
grandparents
on
Sundays.
She
sometimes
goes
to
the
park
with
her
mother.
3
、动词三单形式的变化规则:
①
一般情况下,直接加
s
如:
read
-
read
s
,
swim
-
swims
②
以
s
,
x
,
sh
,
ch
,
o
结尾,加
es
如:
wash
-
washes
,
watch
-
watches
,
do
-
does
③
以辅音字母+
y
结尾,变
y
为
< br>i
,再加
es
如:
study
-
stud
ies
,
fly
-
flies
④
不规则变化
如:
have
-
has
4
、一般现在时的句型转换:
第
12
讲
现在进行时
1
、定义:
表示现在或现阶段正在进行或发生的动作。
句中常有
now
,
look
,
listen
等词。
I
am
washing
clothes
now.
Look!
Liu
Tao
is
climbing
the
tree.
Listen!
Jane
is
singing
in
the
music
room.
2
、构成:
be
动词(
am/is/
are
)
+
动词现在分词(
V
-
ing
)
3
、动词现在分词构成:
如:
si
t
-
sitting
,
swim
-
swimming
,
put
-
putting
,
run
-
runnin
g
,
stop
-
stopping
,
get
-
getting
,
begin
-
beginning
,<
/p>
jog
-
jogging
,
forget
-
forge
tting
4
、动名词其实就是动
词的现在分词,它既有名词性质
(可作主语)
,
又有动词性质(可带宾
语)
。
如:
Asking
the
way
My
hobby
is
collecting
stamps.
He
is
good
at
skating.
5
、现在进行时的句型转换
第
13
讲
一般过去时
1
、定义:表示过去某个时间里发生的动作或存在的状态。常和表示过去的时间
状语连用
,
如:
a
moment
ago
,
just
now
,
yesterday
,
last
week
,
this
morning
等。
My
brother
often
went
to
school
by
bike
last
term.
The
watch
was
beside
the
diary
a
moment
ago.
I
watched
the
moon
and
ate
the
moon
cakes
last
Mid
-
Autumn
Festival.
Jim
went
to
t
he
supermarket
yesterday.
2
、构成:主语+动词的过去式+其他
3
、动词过去式的变化规则:
如:
live
-
lived
,
like
-
liked
,
tast
e
-
tasted
第
14
讲
一般将来时
-
-
-
-
-
-
-
-
-
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