1、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+sgettakeplaygetstakesplays2、以 s, x, sh, ch, o 结尾的动词，在词尾+ esguessfixfinishteachgo 和 doguessesfixesfinishesteachesgoes 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（
2、特殊情况） havebe hasis1、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doesnt 或 does not，动词的第三人称单数形式要还原成原形：格式为 doesnt/does not + 动词原形 ，如：He goes to school at six in the morning. (变否定句)He doesnt 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
3、 go home at five every day?- Yes, she does./No, she doesnt.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)W
4、hat 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。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
5、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 Lucys. 只猫是露茜的。4、不定代词 someone, somebody, nobody, everything, something 等及指示代词 this, that作主语时，是第三人称单数。如：Everyone is here. 大家到齐了。There is something wrong with th
6、e watch. 这块手表有毛病。This is a pen. 这是一支钢笔。That is an eraser. 那是一块橡皮擦。5、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。6、当数字或字母作主语时，看作第三人称单数。如：“7” is a lucky number in western countries, but “8” is a lucky number in China. “7”在西方国家是个吉利数字，
7、但在中国“8”是个吉利数字。“I” is a letter and a word. “I”既是个字母，又是单词。例题引路：4、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 (pl
8、ay / 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、选择题：1. I to school every day.A. go B. goes C. going2. He teeth every morning.A. brush B. brushes C. brushing3. The bi
9、rds singing.A. like B. likes C. like to4. What does Lily doing?A. like B. likes C. to5. you like eating apples?A. Do B. Does C. Doing6. he swim every afternoon?A. Do B. Does C. Did7. Tom likes in the classroom.A. singing B. sing C. to singing8. Does Sally like swimming?-No, she . A. does B. doesnt C. didnt9. Peter and Mary milk every day.A. drink B. drinking C. drinks10. they read English every day?A. Does B. Will C. Do
