-
一.现在进行时的构成:
Be+v+ing.
助动词
be
的形式要根据主语的人称和数来决定。
1
、现在进行时的标志:
Look!Listen!Now
等词
2
、现在进行时的基本用法:
a.
表示现在
(
指说话人说话时
)
正在发生的事情或
当前一段时间内的活动或现阶段正在进行的动作。
We are
waiting for you.
I
’
m doing my
homework now. They are watching TV.
b.
习惯进行:表示长期的或重复性的动作,说话时动作未必正在进行。
Mr. Green is writing another
novel(
小说
).
(
说话时并未在写,只处于写作的状态。
)
3
、动词
-ing
的变形规则
1
)一般情况直接加
-ing
。
Play
—
playing
look
—
looking
go
—
going 2
)以不发音的<
/p>
e
结尾,去
e
加
ing
。
Write
—
writing
take
—
taking
close
—
closing 3
)重
读闭音节,双写末尾的字母,再加
ing
。
Swim
—
swimming
put
—
putting
run
—
running
练习一(写
出下列单词的
-ing
形式)
1 begin 2 come 3 eat 4 know 5 show
6 sit 7 speak 8 go 9 see 10 do 11 have 12
wear 13 ride 14 feel 15 study 16 sing
练习二(用所给单词的适当形式填空)
!The grandma ________(run)after the
grandson. !The students _______(sing)an English
song.
’
t go
___________(rain)hard now. _______(read) a
book now.
children _________(not
listen) to the music now. they _______(have)
breakfast now? your father
_________(fi
sh) now?
二.一般现在时的构成:
be(is,are,am,are)
have(has)
除第三人称单数由动词原形加词尾<
/p>
-s
或
-es
构
成外,其他一律用动词原形
一般现在时的标志:
every
day,usually,often,always,sometimes,never.
一般现在时的用法
1)
经常性或习惯性的动作,
常与表示频腮度的时间状语连用。
2)
客观真理,
客观存在,
科学事实。
3)
表示格言或警句中。
4)
现
在时刻的状态、能力、性格、个性。
动词的第三人称单数变化
1
、一般情况在词尾加
-s
2
、以字母
s,x,ch,sh,o
结尾加
-es 3
、以辅音字母加
p>
y
结尾的动词,先变
y
为
i
再加
es
练习一(写出下列单词的第三人称单数)
1 help 11 fix 2 make 12 teach 3
swim 13 wash 4 leave 14 close 5 know 15 go 6
play 16 fly 7 get 17 carry 8 ride 18 study 9
boy 19 be 10 guess 20 have
练习二(用所给单词的适当形式填空)
______ (be) in the same
city
—
Shenzhen.
______(be)a ruler and four pencils in
the box. ______(be)four pencils and a ruler in the
box. _______(have) blac
k hair.
_______(go) to school by bike every
day. usually______(get)up early in the morning.
brother,Ken,________(watc
h)TV
sometimes. father often_______(walk)after supper.
Peter_______(love)the new school?
the
man_________(work) hard every day? their parents
usually ________(visit)China? aunt ________(not
like)
music in her spare time.
students___________(not plant)trees every year.
三.一般过去时:
1.
表示在确定的过去时间里所发生的动作或存在的状态。
2.
表示在过去一段时间内,经常性或习惯性的动作。
p>
3.
一般过去时的标志:
yesterda
y,yesteday evening,two weeks
ago,last
week,in 1995
等。
4.
动词过去式的变化
(
1
)规则变化
1
)一般情况直接
+ed
如:
work-worked play-played
2
)以
e
结尾的词只加
-d
如:
live-lived
dance-danced
3
)以“辅音字母
+y
”结尾的词,变
y
为<
/p>
i
再加
-ed
如:
study-studied 4)
以重读闭音节结尾,且末尾只有一个辅音字母的词,
先将这
个字母双写,再加
-ed.
如:
stop-stopped plan-planned
(
2
)
不
p>
规
则
变
化
be Was/were keep kept set set begin began
know knew sing sang bring brought leave left sit
sat come came let let sleep slept can
co
uld make made speak spoke do did may
might stand stood fly flew meet met sweep swept
get got pay paid take took give gave put
put
teach taught go went read read tell
told have
had
say
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