初中一般现在时与三单动词的变化规则
初中一般现在时与三单动词的变化规则
初中一般现在时与三单动词的变化规则
I play basketball.（我打篮球）
You like swimming.（你喜欢游泳）
然而，当主语是第三人称单数（he，she，it或者一个名词单数）时，动词需要根据以下规则进行变化：
1. 动词以一般情况下的变化方式（即动词原形）+ s或es结尾。
- 例如：He plays basketball.（他打篮球）
She runs very fast.（她跑得很快）
The cat eats fish.（猫吃鱼）
2. 如果动词以s, ss, x, sh, ch等结尾，加es。
- 例如：She washes her hands.（她洗手）
3. 动词以辅音字母+y结尾时，变y为i，再加es。
- 例如：He studies hard.（他努力学习）
需要注意的是，以下动词有不规则变化：
1. be的现在时单数形式是am（I am），is（he is，she is，it is）；
2. have的现在时单数形式是has（he has，she has，it has）。
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。
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：1表示现阶段经常、反复、习惯性的动作;2表示目前的状况；3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. We often get up early in the morning.Eg2. My father often gets up early in the morning.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, my father, my mother, my sister, our English teacher, Tom, Mike, Liu Jia, China, my book, etc.sometimes goes to school by bike.father works in the hospital as a doctor.四、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;（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’tI,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 get up at 7:00 every morning.一般疑问句→Do you get up at 7:00 every morning否定句→We don’t get up at 7:00 every morning.②陈述句：She has a little brother.一般疑问句→ Does she have a little brother否定句→ She doesn’t have a little 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 like her mother. 韩梅看起来像她的母亲;Beijing is in China. 北京在中国;Uncle Wang often makes cakes. 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 horse is a useful animal. 马是有用的动物;This book is yours. 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 is in the glass.牛奶在玻璃杯里;The bread is very small. 那面包很小;The water is very cold. 那些水很凉;1、写出下列动词的第三人称单数;drink ________ go _______ stay ________ make ________ look _________have_______ pass_______ carry _______ come________ watch________plant_______ fly ________ study_______ brush________ teach________catch_________ wash___________do________ like________ 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;1. He often ________have dinner at home.2. We _____________ not watch TV on Monday.3. Nick ___________ not go to the zoo on Sunday.4. ________ they __________ like the World Cup5. What _________they often _________ do on Saturdays6. _________ your parents _________ read newspapers every day7. There ________be some water in the bottle.8. My aunt _______look after her baby carefully.9. The child often _______watch TV in the evening.10. Mike’s sister ________ cook nice food. I _______ like eating it very much.11. _______ do your brother_______ watch TV in the evening No, he_______ not.12. We often___________play in the playground.13. He _________get up at six o’clock.brush your teeth every morning.15. What________ do he usually______ do after school studyEnglish,Chinese,Maths,Science and Art at school.17. Mike sometimes __________go to the park with his sister.18. At eight at night, she often__________watch TV with his parents.19. ________ Mike________read English every daymany lessons_________your classmate________have on Monday 21. What time_________his mother_________do the housework_____________ go to school on foot every day .______________ not have any lessons on Sundays ._____________ brush her teeth twice a day .students ____________ be not good at boating .Hua always ____________ carry water for his grandpa on Sundays . ____________ like making friendslazy boy ______________ not do his homework in the evening . many classes _________you __________ have every day__________the baby ___________ look likecan ___________ teach us Enlgish well .11. He often ________have dinner at home.12. Daniel and Tommy _______be in Class One.13. Nick _________not go to the zoo on Sunday.14. What _______they often _______do on Saturdays15. _______ your parents _______read newspapers every day16. The girl ____________teach us English on Sundays.17. She and I ________take a walk together every evening.18. There ________be some water in the bottle.19. They _______have the same hobby.20. My aunt __________look after her baby carefully.21. You always _______do your homework well.22. I _______be ill. I’m staying in bed.23. She _______go to school from Monday to Friday.24. The child often ____________watch TV in the evening.day _______be it today －It’s Saturday.26. He _________ get up at six o'clock.1. I ________to school at 7:00 in the morning.A. goB. goingC. goes2. They _______books every day in the library.B. readC. reading3. The monkey________ eating bananas very much.B. likesC. liking4. My father ________to read newspaper after supper every day.B. likesC. liking5. I like watching TV, but my mother _________like it.A. don’tB. doesn’tC. does6. ____________ your father drink milk every dayB. areC. does7. We will go shopping if it____ tomorrow.'t rain B. didn't rain 't rain D. isn't rain8. He said the sun ____in the east and ____in the west.A rose; setB rises; setsC rises, setD rise; setsMei ____ music and often ____ to music.A like; listenB likes; listensC like; are listeningD liking ; listen10. Jenny____ English every evening.A has studyB studiesC studyD studied3、选出正确的答案：1. She like / likes to play football.2. He like / likes drinking milk.3. I like / likes to watch TV.4. We like / likes to play badminton.5. They like / likes to sing songs.6. She read / reads books every day.7. He play / plays computer games every day.8. It listen / listens to the radio every day.9. Linda draw / draws pictures every day.10. Jane and Linda play / plays football every day.5、把下列句子变为否定句：1. We like playing football.2. Linda swims every day.3. They like playing games.4. My father reads newspaper in the evening.7、把下列句子变为疑问句,并做肯定和否定回答;1. My brother can ride a horse.2. We clean the classroom after school.___________________________________________________________。
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：（1）表示现阶段经常、反复、习惯性的动作;（2）表示目前的状况；（3）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. We often get up early in the morning.Eg2. My father often gets up early in the morning.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, my father, my mother, my sister, our English teacher, Tom, Mike, Liu Jia, China, my book, etc.sometimes goes to school by bike.father works in the hospital as a doctor.四、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。
）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：I can swim.一般疑问句→ Can you swim否定句→ I can not swim.（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。
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：（1）表示现阶段经常、反复、习惯性的动作;（2）表示目前的状况；（3）表示自然界的客观真理。
二、一般现在时的结构。
一种是动词原形，用于主语为非第三人称时的情况；Eg1. We often get up early in the morning.四、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。
Eg2. My father often gets up early in the morning.三、谈谈“主语为三单，其后动词s添”主语为三单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）四、一般现在时的句子转换（1）、当句子中有be、情态动词时，则把be、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：I can swim.一般疑问句→ Can you swim否定句→ I can not swim.（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 get up at 7:00 every morning.一般疑问句→Do you get up at 7:00 every morning?否定句→We don’t get up at 7:00 every morning.②陈述句：She has a little brother.一般疑问句→ Does she have a little brother?否定句→ She doesn’t have a little brother.五、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。
英语动词第三人称单数形式的变化规则
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：1、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。
3、对划线部分进行提问(变特殊疑问句)：一般格式为Whxxx + 一般疑问句？She goes home at five every day。
(对划线部分提问）→When/What time does she go home every day?She goes home at five every day. (对划线部分提问)→Who goes home at five every day?She goes home at five every day。
（对划线部分提问)→What does she do at five every day?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。
动词三单的变化规则
动词三单的变化规则
动词第三人称单数变化规则如下：
1)一般情况下，动词后面直接加-s.
例如： works gets says reads
2) 以ch,sh,s,x 或 o 结尾的动词,在后面加 -es。
例如： go- goes teach-,teaches,wash-washes。
brush-brushes ,catch-catches,do-does ,fix -fixes
3) 以辅音字母 + y结尾的动词，把 y变为 i 再加 -es. 例如：study- studies try-tries carry-carries,fly-flies
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，其规律大体有三点：
(1) 一般情况下由动词后加-s构成。
如work / works
(2) 以s, x, z, sh, ch 以及字母o结构的动词，后加-es：
guess / guesses, mix / mixes, go /
goes, buzz / buzzes, finish / finishes, catch / catches等。
(3) 以辅音字母加y结尾的动词，应将y改为i 再加-es：fly / flies, study / studies
等。
【注】①有个别的变化不规则，如have / has, be / is等。
②词尾-s和-es 读音规则是：在s, x, z, sh, ch 后的es读作[iz]，其余的读作[z]。
完整版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：（1）表示现阶段经常、反复、习惯性的动作；（2）表示目前的状况；（3）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. We often get up early in the morning.Eg2. My father ofte n gets up early in the morning.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, my father, my mother, my sister, our English teacher, Tom, Mike, Liu Jia, China, my book, etc.Eg3.He sometimes goes to school by bike.Eg4.My father works in the hospital as a doctor.四、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。
）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 stude nt? 否定句—She is not a stude nt.②陈述句：I can swim.一般疑问句—Can you swim否定句f I can not swim.（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 '单数she,he,i）变成否定句，助动词后的动词要变成动词原形。
英语动词《第三人称单数形式》的变化规则
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：1、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. xx看起来像她的母亲。
is in . xx在xx。
Uncle Wang often makes cakes. xx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 horse is a useful animal. 马是有用的动物。
This book is yours. 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xx的。
三单变化形式规则
三单变化是英语语法中的一项重要内容，它代表了动词在主语为第三人称单数时的形态变化规则。
在英语中，动词的变化形式通常涉及时态、人称、数和语态等方面的变化。
在这篇文章中，我将重点讨论动词在第三人称单数时的形态变化规则和一些相关例子。
一般来说，当主语是第三人称单数时，动词的变化规则如下：1.在一般现在时中，动词在第三人称单数时通常在词尾加上“-s”。
例如：•He runs every morning.（他每天早晨跑步。
）•She sings beautifully.（她唱得很好听。
）2.在一般过去时中，动词在第三人称单数时通常在词尾加上“-ed”。
例如：•He finished his homework yesterday.（他昨天完成了作业。
）•She played the piano last night.（她昨晚弹钢琴。
）3.在一般将来时中，动词在第三人称单数时不会发生变化，仍保持原形。
例如：•He will arrive tomorrow.（他明天会到达。
）•She will study abroad next year.（她明年将出国留学。
）需要注意的是，有一些特殊的动词在第三人称单数时会发生形态变化。
这些特殊的动词形式变化规则如下：1.以“-ss”结尾的动词，变为第三人称单数时通常加上“-es”。
例如：•He passes the exam with flying colors.（他以优异的成绩通过了考试。
）•She kisses her husband goodbye every morning.（她每天早晨亲吻她的丈夫道别。
）2.以辅音字母加“-y”结尾的动词，变为第三人称单数时通常将“-y”改为“-ies”。
例如：•He tries his best to succeed.（他尽力去成功。
）•She cries whenever she watches sad movies.（每当她看到悲伤的电影时就会哭。
(完整版)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：（1）表示现阶段经常、反复、习惯性的动作;（2）表示目前的状况；（3）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. We often get up early in the morning.Eg2. My father often gets up early in the morning.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, my father, my mother, my sister, our English teacher, Tom, Mike, Liu Jia, China, my book, etc.Eg3.He sometimes goes to school by bike.Eg4.My father works in the hospital as a doctor.四、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。
）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：I can swim.一般疑问句→ Can you swim否定句→ I can not swim.（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。
动词三单的变化规则总结
动词三单的变化规则总结，别再搞错了！各位同学：说都动词，我们要知道，动词的变化和句子的时态是有一定关系的。
今天咱们要说的是一般现在时，它的动词变化。
一般现在时：指经常发生的动作或现阶段的状态。
例：We ofen play football on Sunday. She always goes shopping with her friends at the weekend.这两个句子描述的是经常发生的动作，是一般现在时。
我们会发现，在一般现在时里，一般动词是用原型（根据主语判断）；当主语是第三人称单数时，用动词三单形式。
动词的三单变化规则小试牛刀：一、写出下列动词的三单形式。
1. play_____ brush_____ say_____2. stop_____ fix_____ live_____3. take_____ run_____ enjoy_____4. do_ ____ get_____ watch_____5. have_____ work_____ go_____6. cook_____ make_____ sing_____7. study__ ___ fly_____ teach_____8. sit_____ like_____ dance_____9. look_____ draw_____ grow_____10. kiss___ __ buy_____ want_____二、用所给词的适当形式填空。
1. We often _____(play) in the playground.2. He _____ (get) up at six o'clock.3. Mike sometimes _____(go) to the park with his sister.4. He often _____(have)dinner at home.5. Mike _____(like) cooking.6. Mrs White_____(teach) us English.7. Mary usually _____(get) up at seven in the morning.8. I often _____ (take) a shower at nine.9. Your brother often _____(brush) his teeth at noon.10.My parents always ___(read)books after lunch.。
一般现在时动词变三单的规则
一般现在时动词变三单的规则哎，今天咱们聊聊一般现在时动词变三单的那些事儿。
其实这玩意儿啊，真的是学英语时的一道坎，很多小伙伴们一听就头大。
不过别担心，咱们今天轻松聊，保证你笑着学会。
咱们得知道，动词的三单形式可不是随便变的，它们可有自己的规矩。
比如说，动词“play”，在三单的时候就变成“plays”，是不是觉得简单？对了，记住，当主语是第三人称单数的时候，咱们就得加个“s”。
听起来容易吧？但是生活中可没那么简单。
咱们聊聊那些以“y”结尾的动词。
比如“study”，在三单的时候要变成“studies”，是不是让你觉得挺神奇的？对了，记得去掉“y”，然后加上“ies”。
哎，听上去是不是像魔法一样？但是，别太得意，像“play”这种，咱就直接加个“s”就好了。
还有那些以“o”结尾的动词，比如“go”，在三单的时候变成“goes”，也是得加“es”的！这就让人有点哭笑不得了，怎么每个动词都有自己的脾气呢？咱们千万别忘了不规则动词。
像“have”，在三单的时候变成“has”，这时候就得小心了。
尤其是老外问你“Who has a dog?”时，你可别想当然回答成“who have”。
那可就尴尬了。
小伙伴们，要是把这儿搞错了，可是会被笑话的。
所以，记得好好复习这些小细节。
其实嘛，学语言就是一个积累的过程，多说多练，慢慢就能把这些规则都消化掉。
再说说那些不常用的动词。
像“belong”，在三单的时候变成“belongs”。
你看，这种动词听上去有点拗口，但其实只要你记住了规则，应用起来就没问题了。
英语就是这样，很多时候需要我们慢慢去习惯。
还有一些动词，它们可能在日常生活中不是很常见，但偶尔说到也是挺酷的。
比如“disagree”，在三单时就是“disagrees”。
说出这些词的时候，想象自己在国外和朋友聊天，心里是不是特别得意呢？讲到这里，咱们不能忘了动词的发音。
有些动词在变三单的时候，发音也会有些变化。
比如“catch”，在三单的时候是“catches”，这个时候的“e”就要轻轻地发出来。
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一般现在时1.概念：经常、反复发生的动作或行为及现在的某种状况。
2.时间状语：always,usually,often,sometimes,every week(day,year,month…),once a week, on Sundays,3.基本结构：动词原形/第三人称单数形式（如主语为第三人称单数，动词上要改为第三人称单数形式）4.否定形式：am/is/are+not; 谓语动词若为动词，则在其前加don't,如主语为第三人称单数，则用doesn't，同时还原行为动词。
5.一般疑问句：把be动词放于句首；用助动词do提问，如主语为第三人称单数，则用does，同时，还原行为动词。
三单动词的变化规则1．一般情况下，直接加-s如：play—plays， want—wants， work—works， know—knows， help —helps，get—gets2．以s. x. sh. ch. o结尾，加-es如：guess—guesses， fix—fixes， teach—teaches， brush—brushes， go —goes，do—does，watch—watches，catch—catches3．以“辅音字母+y”结尾，变y为i, 再加-es如：study—studies，carry—carries，fly—flies，worry—worries一般现在时用法专练:一、写出下列动词的第三人称单数drink ________ go _______ stay ________ make ________look _________ have_______ pass_______ carry ____come________ watch______ plant_______ fly ________study_______ brush________ do_________ teach_______catch _________ wash_________ like________have______say_________ learn ________ eat________ read_________ sing_______二、用括号内动词的适当形式填空。
（一）1. He often ________(have) dinner at home.2. Daniel and Tommy _______(be) in Class One.3. We _______(not watch) TV on Monday.4. Nick _______(not go) to the zoo on Sunday.5. ______ they ________(like) the World Cup?6. What _______they often _______(do) on Saturdays?7. _______ your parents _______(read) newspapers every day?8. The girl _______(teach) us English on Sundays.9. She and I ________(take) a walk together every evening.10. There ________(be) some water in the bottle.11. Mike _______(like) cooking.12. They _______(have) the same hobby.13. My aunt _______(look) after her baby carefully.14. You always _______(do) your homework well.15. I _______(be) ill. I’m staying in bed.16. She _______(go) to school from Monday to Friday.17. Liu Tao _______(do) not like PE.18. The child often _______(watch) TV in the evening.19. Su Hai and Su Yang _______(have) eight lessons this term.20. －What day _______(be) it today? It’s Saturday.（二）1. We often___________(play) in the playgound.2. He usually _________(get) up at six o’clock.3.__________you_________(brush) your teeth every morning.4. What ________ (do) he usually_________ (do) after school?5. Danny _____ (study) English,Chinese,Maths,Science and Art at school.6. Mike sometimes __________(go) to the park with his sister.7. At eight at night, she __________(watch) TV with his parents.8. ________ Mike________(read) English every day?9.How many lessons______ your classmate________(have) on Monday?10. What time_________his mother_________(do) the housework?（四）1. I can take Li Ming there when he _____ ( come) to visit.2. _____your sister_____(know)English?3. Her home____ _____ ______(远离)her school.4. The pot_____(not look) like yours very much.5. Where _____you____(have)lunch every day?6. Who_____(想要)to go swimming?7. ______she_____(do) the housework every day?8. Jenny and Danny usually______(play) games in the afternoon（五）1.Where (be) John and Jack from?2. His favorite subjects (be) P.E. and music.3. His pen pal (live) in Toronto.4. he (have) any sisters?5. Ben can (speak) English and Spanish.6. Her brother (not play) sports every day, he only (watch) them on TV.7. My patents want (go) shopping on Sunday.8. She likes (play) computer games.9. When your mother (cook) breakfast every morning?10. There (be) some ice cream and hamburgers on the table.11. Mr White always (get) up early in the morning.12. Jack, together with his friends, (go) to park every week.13. Nick (have) lunch at school from Monday to Friday.14. There (be) seven days in a week.15. The students in our school (like) English.三、选择填空：( )1. I ________to school at 7:00 in the morning.A. goB. goingC. goes( )2. They _______books every day in the library.A.readsB. readC. reading ( )3. The monkey________ eating bananas very much.A.likeB. likesC. liking ( )4. My father ________to read newspaper after supper every day.A.likeB. likesC. liking ( )5. I like watching TV, but my mother _________like it.A. don’tB. doesn’tC. does( )6. ____________ your father drink milk every day?A. doB. areC. does（)7. One of the boys_____ a black hat.A. haveB. there isC. there areD. has（)8. We will go shopping if it____ tomorrow.A. don't rainB. didn't rainC. doesn't rainD.isn't rain （)9. Wang Mei ____ music and often ____ to music.A like; listenB likes; listensC like; are listeningD liking ; listen（）10. Jenny____ English every evening.A has studyB studiesC studyD studied四、按照要求改写句子1. Daniel watches TV every evening.(改为否定句)___________________________________________________2. I do my homework every day.(改为一般疑问句，作否定回答)________________________________________________________ 3. She likes milk.(改为一般疑问句，作肯定回答)_______________________________________________________ 4. Amy likes playing computer games.(改为一般疑问句，作否定回答) ________________________________________________________ 5. We go to school every morning.(改为否定句)_______________________________________________________ 6. He speaks English very well.(改为否定句)___________________________________________________7. I like taking photos in the park.(对划线部分提问)________________________________________________________ 8. John comes from Canada.(对划线部分提问)___________________________________________________ 9. She is always a good student.(改为一般疑问句，作否定回答)________________________________________________________ 10. Simon and Daniel like going skating.(改为否定句)___________________________________________________五、改错(划出错误的地方，将正确的写在横线上)1. Is your brother speak English? __________________2. Does he likes going fishing? __________________3. He likes play games after class. __________________4. Mr. Wu teachs us English. __________________5. She don’t do her homework on Sundays. _________________。