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用原形例如:Helikesapples改成否定句Hedoes
tlikesapples。错Hedoes
tlikeapples。对A否定句:(1)当主语是第一,二或复数时,主语do
t动词原形其它。如:Ido
tlikebread(2)当主语为第三人称单数时,要用does
t构成否定句。如:Hedoes
tofte
playB一般疑问句:(1)当主语是第一,二或复数时,Do主语动词原
f形其它。如:Doyouofte
playfootballYesIdoNoIdo
t2当主语为第三人称单数时,要用does构成一般疑问句。如:DoesshegotoworkbybikeYesshedoesNoshedoes
tC特殊疑问句:疑问词一般疑问句。如:Howdoesyourfathergotowork(四)一般现在时动词第三人称单数形式构成规则(一般现在时中主语时第三人称
310
1、大多数动词在词尾加“S”如:
①stop-stops
make-makesread-readsplay-
playsz
2、以辅音字母加“y”结尾的,要先将“y”变为“i”,然后在加“es”
读iz如:
fly-flies
carry-carriesstudy-studies
worry-
worries
3、以“sxchsh”结尾的,在词尾加“es”,发音为如:
teach-teaches
watch-watches
4、以“o”结尾的动词,加“es”,如:
fgo-goes
do-does
5、以不发音字母“e”结尾的开音节词,加“s”如:close-closes
iz
6、特殊:be动词包括:am,is,are。第三人称单数用is;过去式为was;
复数用are,过去式为were动词have,遇到主语是第三人称单数时,要用has;动词be的
第三人称单数形式is。(五)巩固练习题:
一、写出下列动词的第三人称单数形式:
sit
guess
die
go
rush
reach
touch
brush
fly
copy
say
ru

do
fix
live
cry
e
joy
have
wish
play
Tie
teach
buy
study
f410
pla
t
fly
do
二、用括号内动词的适当形式填空。
1Heofte
________havedi
erathome
2Da
iela
dTommy_______bei
ClassO
e
3We_______
otwatchTVo
Mo
day
4Nick_______
otgotothezooo
Su
day
5______they________liketheWorldCup
6What_______theyofte
_______doo
Saturdays
7_______yourpare
ts_______read
ewspaperseveryday
8Thegirl_______teachusE
glisho
Su
days
9Shea
dI________takeawalktogethereveryeve
i
g
10There________besomewateri
thebottle
11Mike_______likecooki
g
12They_______havethesamehobby
13Myau
t_______lookafterherbabycarefully
14Youalways_______doyourhomeworkwell
15I_______beillImstayi
gi
bed
16She_______gotoschoolfromMo
daytoFriday
17LiuTao_______do
otlikePE
18Thechildofte
_______watchTVi
theeve
i
g
f19SuHaia
dSuYa
g_______haveeightlesso
sthisterm
510
20-Whatday__r
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