第三人称单数是英语中的一种语法，也称“三单”或“单三”，用于一般现在时的句子，当动词在第三人称后时：情况方法示例一般情况+slet-lets;get-gets以s、x、ch、sh和o结尾+espass-passes;fix-fixes;watch-watches;teach-teacheswash-washes;go-goes;do-does以辅音字母+y结尾变y为i +esstudy-studies以元音字母+y结尾直接+splay-plays特殊情况不规则have-hasbe-is首先，咱们要搞清楚第一、第二、第三人称各是什么。第一人称就是“我”和“我们”。第二人称是“你”和“你们”。第三人称单数是“他”、“她”和“它”，复数则是“他们”、“她们”和“它们”。在一般现在时中，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，即常在动词原形后加-s或-es。下面我们归纳一下第三人称单数的用法：一、人称代词he, she, it是第三人称单数。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。二、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。三、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。如：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. 这只猫是露茜的。四、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 the 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。五、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。六、当数字或字母作主语时，看作第三人称单数。如：I is a letter. I是个字母。二、把下列动词变为第三人称单数形式。 1. clean 2. go- 3. have- 4. do- 5. play- 6. fly7. come 8. brush- 9. watch- 10. study- 11. ask- 12. answer- 13. swim- 14. catch- 15. write- 16. eat- 17. make- 18. paint- 19. learn- 20. phone- 21. run- 22. hop- 23. sing- 24. pick- 三、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.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 Cup? 5.What _they often _(do) on Saturdays? 6._ your parents _(read) newspapers every day? 7.The girl _(teach) us English on Sundays. 8.She and I _(take) a walk together every evening. 9.There _(be) some water in the bottle. 10.Mike _(like) cooking. 11.They _(have) the same hobby. 12.My aunt _(look) after her baby carefully. 13.You always _(do) your homework well. 14.I _(be) ill. Im staying in bed. 15.She _(go) to school from Monday to Friday. 16.Liu Tao _(do) not like PE. 17.The child often _(watch) TV in the evening. 18.Su Hai and Su Yang _(have) eight lessons this term练习一、将括号里动词的适当形式填入横线上。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 Cup?5.What _they often _(do) on Saturdays?6._ your parents _(read) newspapers every day?7.The girl _(teach) us English on Sundays.8.She and I _(take) a walk together every evening.9.There _(be) some water in the bottle.10.Mike _(like) cooking.11.They _(have) the same hobby.12.My aunt _(look) after her baby carefully.13.You always _(do) your homework well.14.I _(be) ill. Im staying in bed.15.She _(go) to school from Monday to Friday.16.Liu Tao _(do) not like PE.17.The child often _(watch) TV in the evening.18.Su Hai and Su Yang _(have) eight lessons this term.19. He_ TV every evening. (watch)20.John _ like his father. (look) I _ in the corridors. (walk)l He _ in the corridors. (run)l She _ her face once a day. (wash)l They _ their teeth once a day. (brush)l You _ up your clothes once a day. (hang)l We _ our home work once a day. (finish)l He _ rubbish in the classroom. (throw)l She _ rubbish on the floor. (throw)l I _ rubbish in the bin. (throw)l They _ the table once a day. (set)l Peter never _ in the corridors. (run)l Mary usually _ the table. (