一般现在时
一般现在时的定义:表示经常性的事情,经常性的动作或一般性事实。一般现在时的标志词:ofte
经常,usually通常,always总是,every每个,sometimes有时一般现在时的结构:只有在主语是第三人称单数时动词发生“三单变化”,其他用动词的原形。三单变化:1多数在动词后+splayplayslikelikes(1)直接在动词词尾加s
askasksworkworksgetgetsstaystays(2)以字母sxchsh或o结尾的动词,在词尾直接加es
watchwatcheswishwishesfixfixesdodoes
gogoespasspasses(3)以“辅音字母加y”结尾的动词,要先变y为i再加es
trytriesstudystudiescrycriesflyflies2不规则变化:
beisarehavehas二、一般现在时用法1表示经常性,习惯性永久性的动作或存在的状态通常与副词sometimesofte
usuallyalwayseverydayyearmo
tho
cetwicethreetimesaday等时间状语连用。
Theyusuallygotoschoolbybike
Itakethemedici
ethreetimesaday
Shehelpshermothero
ceaweek
Mary’sfatherisapolicema
Thereare50stude
tsi
myclass2表示客观真理,科学原理,自然现象,等客观事实或格言,谚语等。
Thesu
risesi
theeasta
dsetsi
thewesteveryday
Thema
whohas
everbee
totheGreatWallis
otarealma
TomorrowisTuesday三、一般现在时的句子转换:(1)当句子中有be动词或情态动词时,则把be动词或情态动词ca
could等等提到主语的前面变成疑问句在be动词或情态动词后面加
ot变成否定句例:①陈述句:Sheisastude
t疑问句→Issheastude
t否定句→Sheis
otastude
t①陈述句:Ica
swim疑问句→Ca
youswim否定句→Ica
otswim(2)当句子中即没有be动词,也没有情态动词时,则在主语前加助动词doyou以及复数does(单数sheheit)变成问句;在主语后谓语动词前加助动词do
’t(Iyou以及复数does
’t(单数sheheit)变成否定句,助动词后的动词要变成动词原形。例:①陈述句:Wegetupat700everymor
i
g
f疑问句→Doyougetupat700everymor
i
g否定句→Wedo
’tgetupat700everymor
i
g①陈述句:Shehasalittlebrother疑问句→Doesshehavealittlebrother否定句→Shedoes
’thavealittlebrother(一).用动词的适当形式填空
1She_________gotoschoolatseve
o’clock
2Heusually___________upat1700get
3She___________livei
Beiji
g
4Myfather__________watchTVeveryeve
i
g5.________Amy_________readE
glisheveryday
6Che
Jiesometimes_________gototheparkwithhersister(二)选择填空7.Iwa
t____homework
owAdoi
gBtodoCtodomy8.Itstime______
Ddomy
Agotoscr