一般现在时动词第三人称单数变化规则

一、概述一般现在时的概念和用法：表示现阶段经常、反复、习惯性的动作;表示目前的状况；表示自然界的客观真理。二、一般现在时的结构时态的结构指的是动词的变化形式。一般现在时间有两种结构，一种是动词原形，用于主语为非第三人称时的情况；另一种为动词的第三人称单数形式，用于主语为第三人称时的情况。Eg1.Weoftengetupearlyinthemorning.Eg2.Myfatheroftengetsupearlyinthemorning.三、谈谈“主语为三单，其后动词

s

添”在一般现在时中，当主语为第三人称单数时，谓语动词要用第三人称单数形式。可以简单叙述为“主语为三单，其后动词

s

添”。何谓第三人称单数？用一句话概括就是“非你、非我、非复数”，如he,she,it,myfather,mymother,mysister,ourEnglishteacher,Tom,Mike,LiuJia,China,mybook,etc.Eg3.Hesometimesgoestoschoolby

bike.Eg4.Myfatherworksinthehospitalasa

doctor.4、一般现在时的肯定句中，主语为第三人称单数的动词变化主要体现在词尾的变化上，其规律为：（与名词变成复数的变法大致相同。）规则原形第三人称单数形式1、一般情况下，直接在动词词尾+sgettakeplaygetstakesplays2、以

s,

x,

sh,

ch,

o

结尾的动词，在词尾+

esguessfixfinishteachguessesfixesfinishesteachesgo和

dogoes和

does3、以辅音字母+

y

结尾的动词，先把y

变为

i，再加

esstudytryflycarryworrystudiestriesfliescarriesworries4、不规则动词（特殊情况）havebehasis五、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(can,could

等等)提到主语的前面变成一般疑问句;在

be动词或情态动词后面加

not

变成否定句.例：①陈述句：She

is

a

student.一般疑问句→

Is

she

a

student?否定句→

She

is

not

a

student.②陈述句：Icanswim.一般疑问句→Canyouswim否定句→

Icannotswim.（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

do

(you,以及复数),does（单数

she,he,it）变成一般疑问句；在主语后谓语动词前加助动词

don’t（I,you,以及复数),

doesn’t（单数

she,he,it）变成否定句，助动词后的动词要变成动词原形。例：①陈述句：We

getupat7:00everymorning.一般疑问句→Do

yougetupat7:00everymorning?否定句→We

don’tgetupat7:00everymorning.②陈述句：Shehasalittlebrother.一般疑问句→Doesshehavealittlebrother?否定句→Shedoesn’thavealittle

brother.哪些主语是第三人称单数？1、人称代词

he,she,it；如：He

likes

watching

TV.他喜欢看电视。She

has

lunch

at

twelve.

她十二点吃午餐。It

looks

like

a

cat.

它看起来像只猫。2、单个人名、地名或称呼作主语；是第三人称单数。如：Han

Mei

looks

likeher

mother.

韩梅看起来像她的母亲。Beijing

isin

China.

北京在中国。Uncle

Wangoftenmakescakes.

王叔叔经常做蛋糕。3、单数可数名词或

this/

that/the

+

单数可数名词作主语时，是第三人称单数；A

horseisa

usefulanimal.

马是有用的动物。This

book

isyours.

这本书是你的。That

car

is

red.

那辆小汽车是红色的。The

cat

is

Lucy's.只猫是露茜的。4、不可数名词作主语时为第三人称单数。如：The

milk

isin

theglass.牛奶在玻璃杯里。The

breadis

verysmall.

那面包很小。The

waterisverycold.

那些水很凉。1、写出下列动词的第三人称单数。go

pass

fly

stay

carry

study

drink

have

plant

catch

wash

do

make

come

brush

like

look

watch

teach

say

learn

eat

read

sing

buy

study

come

plant(种植)

2、用括号内动词的适当形式填空。Heoften

(have)dinnerathome.We

(notwatch)TVonMonday.Nick

(notgo)tothezooon

Sunday.

they

(like)theWorld

Cup?What

theyoften

(do)onSaturdays?

yourparents

(read)newspapersevery

day?There

(be)somewaterinthe

bottle.Myaunt

(look)afterherbaby

carefully.Thechild

often

(watch)TVinthe

evening.Mike’ssister

(cook)nicefood. I

(like)eatingitvery

much.

(do)yourbrother

(watch)TVintheevening?No,

he

(not).Weoften

(play)inthe

playground.He

(get)upatsix

o’clock.

you

(brush)yourteeth every

morning.What

(do)heusually

(do)after

school?Danny

(study)English,Chinese,Maths,ScienceandArtat

school.Mikesometimes

(go)to

thepark withhissister.Ateight

atnight, sheoften

(watch)TVwithhis

parents.

Mike

(read)Englishevery

day?How many lessons

your classmate

(have)on

Monday?Whattime

hismother

(do)

the housework?1.We

(go)toschoolonfooteveryday

.2.They

(nothave)anylessonsonSundays

.3.She

(brush)herteethtwiceaday

.Thesestudents

(benot)goodatboating

.WeiHuaalways

(carry)waterforhisgrandpaonSundays.6.

Kate

(like)makingfriends

?7.Thelazyboy

(notdo)hishomeworkintheevening

.8.Howmany

classes

you

(have)every

day?9.Who

thebaby

(look)like

?10.Hecan

(teach)usEnlgishwell

.Heoften

(have)dinnerathome.Danieland

Tommy

(be)inClass

One.Nick

(notgo)tothezooon

Sunday.What

theyoften

(do)onSaturdays?

yourparents

(read)newspapersevery

day?Thegirl

(teach)usEnglishon

Sundays.SheandI

(take)awalktogetherevery

evening.There

(be)somewaterinthe

bottle.They

(have)thesame

hobby.Myaunt

(look)afterherbabycarefully.Youalways

(do)yourhomeworkwell.I

(be)ill.I’mstayingin

bed.She

(go)toschoolfromMondayto

Friday.Thechild

often

(watch)TVinthe

evening.25.-Whatday

(be)ittoday?－It’s

Saturday.He

(get)upatsix

o'clock.( )1.I

toschoolat7:00inthe

morning.A.go B.going C.

goes( )2.They

bookseverydayinthe

library.A.reads B.read C.

reading( )3.Themonkey

eatingbananasvery

much.A.like B.likes C.liking( )4.Myfather

toreadnewspaperaftersupperevery

day.A.like B.likes C.liking( )5.IlikewatchingTV,but

mymother

like

it.A.don’t B.doesn’t C.

does( )6.

yourfatherdrinkmilkevery

day?A.do B.are C.

does( )7.Wewillgoshopping

ifit

tomorrow.A.don'train B.didn'train C.doesn't

rainD.isn't

rain( )8.Hesaid

the

sun

inthe

east

and

inthe

west.A

rose;set B

rises;sets Crises,

setDrise;

sets( )9.WangMei

musicandoften

to

music.Alike;listen Blikes;listens Clike;are

listeningDliking;

listen( )10.Jenny

Englishevery

evening.A

hasstudy Bstudies C

studyD

studied3、选出正确的答案：She(like/