第三人称单数动词变化规则
动词第三人称单数的变化规则

动词第三人称单数的变化规则
1.大部分动词,构成第三人称单数的形式,直接在词尾加“s”
2.“s”发音规则
所加的“S”在清辅音(无声子音)后发为[s]的音,在浊辅音(有声子音)及元音(母音)后发[z]的音。
所加的“S”在[t]后可以与[t]一起发[ts]的音,在[d]后与[d]一起发[dz]的音
词尾为“s, x, ch, sh”的动词
1.词尾是“ch,sh,s,x”的原型动词,在词尾加“es”构成第三人称单数的形式。
2.词尾所加得“es”,发[iz]的音
词尾为“O”的动词
1.词尾是“O”的原型动词,在词尾加“es”构成第三人称单数的形式。
2.词尾所加得“es”,发[z]的音
词尾为“辅音字母+y”
1.词尾为:辅音字母+y的动词,构成第三人称单数的形式要先将“y”变为“i”,再加“es”
2.“es”发[iz]的音。
特殊例子
1.have的第三人称单数形式为has 。
1
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动词单三形式变化规则

动词单三形式变化规则
动词的单数第三人称形式变化规则一般如下:
1. 一般情况下,直接在动词词尾加上-s。
如:play → plays,
drink → drinks。
2. 动词以s、ss、sh、ch、x、o结尾时,加上-es。
如:pass → passes,miss → misses,wash → washes,watch → watches,fix → fixes,go → goes。
3. 动词以辅音字母+y结尾时,将y变为i,再加-es。
如:study → studies,fly → flies。
4. 动词以元音字母+y结尾时,直接加-s。
如:play → plays,
enjoy → enjoys。
5. 动词以辅音字母+o结尾时,直接加-es。
如:do → does,go → goes。
6. 部分动词没有规律可循,需要单独记忆。
如:be → is,have → has。
需要注意的是,有些动词在单数第三人称形式中发生形态变化,如:go → goes,do → does,have → has。
这些变化需要通过记忆来掌握。
英语动词第三人称单数变化规则

英语动词第三人称单数变化规则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: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+s如:get take play gets takes plays2、以s, x, sh, ch, o结尾的动词,在词尾+ esguess fix finish teach go和do guesses fixes finishes teaches goes和does3、以辅音字母+ y 结尾的动词,先把y变为i,再加esstudy try fly carry worrystudies tries flies carries worries4、不规则动词(特殊情况)have behas is1、变否定句:含有动词第三人称单数形式的句子变否定句时,要在动词前面加上doesn’t 或does not,动词的第三人称单数形式要还原成原形:格式为doesn’t/does not + 动词原形,如: He goes to school at six in the morning. (变否定句)→He doesn’t go to school at six in the morning。
2、变一般疑问句:把含有动词第三人称单数形式的变成一般疑问句时,要借用助动词does,如:She goes home at five every day。
→Does she go home at five every day?—-- Yes, she does。
/No, she doesn’t。
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 like her mother. 韩梅看起来像她的母亲。
英语动词第三人称单数变化规则

英语动词第三人称单数变化规则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: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+s如:get take play gets takes plays2、以s, x, sh, ch, o结尾的动词,在词尾+ esguess fix finish teach go和do guesses fixes finishes teaches goes和does3、以辅音字母+ y 结尾的动词,先把y变为i,再加esstudy try fly carry worrystudies tries flies carries worries4、不规则动词(特殊情况)have behas is1、变否定句:含有动词第三人称单数形式的句子变否定句时,要在动词前面加上doesn’t 或does not,动词的第三人称单数形式要还原成原形:格式为doesn’t/does not + 动词原形,如:He goes to school at six in the morning. (变否定句) →He doesn't go to school at six in the morning.2、变一般疑问句:把含有动词第三人称单数形式的变成一般疑问句时,要借用助动词does,如:She goes home at five every day. →Does she go home at five every day? --- Yes, she does./No, she doesn’t.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。
单数第三人称动词用法及变化规则

单数第三人称动词用法及变化规则第三人称单数形式:一、构成1. 以字母s结尾:以辅音字母结尾的动词,在词尾加-s。
例如:Look→Looks;Want→Wants;Love→Loves。
2. 以字母es结尾:以元音字母结尾的动词,一般在词尾加-es,例如:Go→Goes;Do→Does;Have→Has。
3. 特殊变化:有些动词会按照特殊变化规则变化。
例如:Say→Says;Come→Comes;Drive→Drives。
二、特殊规则1、以字毯o结尾的动词,一般加-es,但是有例外:Go→Goes;Do→Does;Have→Has。
2、以不发音字母e结尾的动词,一般加-s,但是有例外:Write→Writes;Make→Makes。
3、以辅音字母加y结尾的动词,去y加-ies:Attend→Attends;Carry→Carries。
4、以-ch、-sh、-z、-x结尾的动词,加-es:Watch→Watches;Rush→rushes;Fizz→Fizzes;Fix→Fixes。
5、有些双写的字母,加-es,例如:Dr ess→Dresses;Miss→Misses;Wish→Wishes;Buzz→Buzzes。
6、有的动词的变化太多了,只能熟记:Be→Is;Have→Has;Know→Knows。
7、有的动词,复杂到没有规律可言,只能记忆:Cut→Cuts;Put→Puts;Shut→Shuts。
三、谓-补结构在句子中,一般第三人称单数形式,后面跟be动词和介词短语形成谓-补结构:1. 用is结构:He is at home.2. 用are结构:They are in the room.3. 用am结构:She am in the study.4. 用has/have结构:He has a nice watch.以上是关于第三人称单数构成及变化规则的介绍,大家要好好记忆,日积月累,运用起来就很自然了。
单数第三人称动词变化规则

单数第三人称动词变化规则单数第三人称动词的用法及变化规则如下:一、常规动词加-s大部分动词在构成第三人称单数时,直接在动词词尾加上-s。
例如:I work,he works;I play,he plays;I read,he reads。
常规动词加-s例句:1.He walks to school every day.(他每天步行去学校。
)2.She sings beautifully.(她唱得很美。
)3.It jumps over the fence.(它跳过栅栏。
)二、加-es当动词词尾以-s,x,ch,sh结尾时,构成第三人称单数时,需要在词尾加上-es。
例如:I kiss,he kisses;I fix,he fixes;I wash,he washes;I watch,he watches。
以-s、x、ch、sh结尾的动词加-es例句:1.He passes the ball to his teammate.(他把球传给了队友。
)2.She fixes the broken chair.(她修理了破椅子。
)3.It catches the mouse in the kitchen.(它在厨房里抓住了老鼠。
)若动词词尾以-o结尾,构成第三人称单数时,需要在词尾加上-es。
例如:I do,he does;I go,he goes。
以-o结尾的动词加-es例句:1.He goes to work by bus.(他乘坐公交车上班。
)2.She does her homework after school.(她放学后做作业。
)3.It echoes through the canyon.(它在峡谷中回荡。
)三、先将y改变为i,再加上-es。
当动词词尾为以辅音字母+y结尾时,构成第三人称单数时,需要先将y改变为i,再加上-es。
例如:I fly,he flies;I try,he tries;I study,he studies;I carry,he carries。
动词第三人称单数的变化规则

动词第三人称单数的变化规则1、大多数动词在词尾加“s”。
如:make-makes(1) I make the bed every day .(2)Mary makes the bed every day .2、以辅音字母加“y”结尾的,要先将“y”变为“i”,然后再加“es”。
如:study-studies(1) We study Chinese every day .(2) My sister studies English every day.3、以“s, x, ch, sh”结尾的,在词尾加“es”。
如:watch-watches(1) I often watch TV at home.(2) My mother watches TV at home.4、以“o”结尾的动词,一般也在词尾加“es”。
如:go-goes(1) I go to bed at half past nine.(2) My brother goes to bed at ten o’clock.5、动词have遇在主语是第三人称单数时,have改为has。
如:have-has(1) I have a new pen.(2) He has an interesting book .6、动词be遇有主语是第一人称单数时,be改为am,遇有主语是第二人称时,be改为are,遇有主语是第三人称单数时,be改为is(1) I am a teacher.(2) You are a boy.(3) He is a doctor.(4) She is a nurse.(5) It is a cat.如何将主语是第三人称单数的肯定句变为否定和疑问句。
现举例说明:1)His mother works in a factory.His mother doesn’t work in a factory.Does his mother work in a factory?2)Mr Li teaches us English.Mr Li doesn’t teach us English.Does Mr Li teach you English?3)My brother studies maths well.My brother doesn't study maths well.Does your brother study maths well?练一练,请用下列动词的正确形式填空。
三单形式的变化规则

索罗学院
三单形式的变化规则?
疑点:三单形式的变化规则? 解析:当主语是第三人称单数时,谓语动词要用第三人称单数形式。
动词的单三形式分为规则变化和不规则变化。
一、规则变化:1、大多数动词在词尾加“s”. 如: stop - stops make - makes read - reads play - plays 2、以辅音字母加"y”结尾的,要先将"y”变为“i”,然后再加"es”. 如: fly - flies carry - carries study - studies worry - worries 3、以"s , x , ch , sh”结尾的,在词尾加“es”. 如: teach - teaches watch - watches 4、以"o”结尾的动词,加“es”. 如: go - goes do - does
二、不规则变化:不规则变化无规律可循,大家要多记忆。
如:have - has
注:不规则变化的动词很少,大家可以单独记忆。
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5. I shall see you tomorrow. He will see you tomorrow.
6. I can understand you.
He can understand you.
7. I must write a letter.
He must write a letter.
8. I may come next week.
have
have
has
be
am
is
一般将来时助动词
shall
will
2. 同型的情况
1)情态动词:can, must, may, could, should, might, would… 2)一般过去时:looked, taught, studied, did, went, had, was…
B. Write these sentences again. Put in a, some or any.
well when he was young. He always tries to get up
early. He might see you next week. He always enjoys a good film. He had finished my work. He watches television every
PRE-UNIT TEST 1
A. 第三人称单数动词变化规则 B. a/an, some和any的用法 C. many和much的用法 D. 一般过去时 E. 一般疑问句、特殊疑问句和否定句 F. 形容词与副词 G. 物主代词 H. 介词 I. 定语从句
A. Write these sentences again. Begin each sentence with He.
I have a new book. 我有一本新书。 2)表示“某一个”,意为a certain
A Mr. Wang is waiting for you. 有位姓王的先生在等你。 3)表示一类人或物
A knife is a tool for cutting with. 刀是切割的工具。 Mr. Smith is an engineer. 史密斯先生是工程师。 4)组成词组或习语 a little, a few, a lot (of), a type of, a great many, many a, as a rule, in a hurry, in a minute, in a word, in a short while, after a while, have a cold, have a try, keep an eye on, all of a sudden…
10.Are there any eggs in that basket?
语法小结:a/an, some和any的用法
1.不定冠词a和an的用法: a和an是不定冠词,表示泛指,常用于可数名词的单数形式前。
a用在以辅音发音开头的单词前,e.g. a university student, a one-eyed elephant; an用在以元音发音开头的单词前,e.g. an hour, an X-ray machine。 1)表示“一个”,意为one
6. We have some apple trees in our garden.
7. Can I have a bar of chocolate, please?
8. There isn’t any bread in that tin.
9. Is there any ink in that bottle?
night.
语法小结:第三人称单数动词变化规则
1. 一般现在时和一般将来时
I
he
一般情况在词尾加-s
look looks
以-s, -x, -ch, -sh结尾的词加-es
teach teacБайду номын сангаасes
以辅音字母加y结尾的单词改y为i再加-es study studies
以辅音字母加o结尾的词加-es
do, go does, goes
1. I am busy.
He is busy.
2. I am learning English.
He is learning English.
3. I have a new book.
He has a new book.
4. I live in the country.
He lives in the country.
well when I was young. 16.I always try to get up early. 17.I might see you next week. 18.I always enjoy a good film. 19.I had finished my work. 20.I watch television every
1. There are some books on the desk.
2. I drank a glass of beer.
3. Do you want
any
butter?
4. There aren’t any people in the street.
5. Tom has just bought a new car.
night.
He played football yesterday. He bought a new coat last
week. He has had a letter from Tom. He was busy this morning. He could play football very
He may come next week.
9. I do a lot of work every day. He does a lot of work every day.
10.I did a lot of work
He did a lot of work yesterday.
yesterday.
11.I played football yesterday. 12.I bought a new coat last
week. 13.I have had a letter from
Tom. 14.I was busy this morning. 15.I could play football very