1、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 +s let-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 +es study-studies以元音字母+y 结尾 直接+s play-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“
2、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 mothe
3、r. 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
4、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
5、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 / li
6、kes) 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 ever
7、y 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
8、) 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 _
9、(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 _
10、(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 aun
11、t _(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 e
12、vening. (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. (th
13、row)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. (set)l Pat and Ken _ the plants in the morning. (water)l The boy _ his hair once a day. (comb)l Miss Cheng _ TV at home. (w
14、atch)l My sister _ his schoolbag once a day. (pack)l My mother _ dinner for me. (cook)l My parents _ the house at Chinese New Year. (clean)l My teachers _ us some gifts. (give)l My friends _ the table with me. (set)练习二、选择正确的单词填到括号里。1. What does Candy _ (wants,want) to be ?2. You _ (should,shouldnt)
15、be quiet in the library.3. He shouldnt _ (throw,throws) rubbish on the floor.4. Peter _ (help,helps) his mother at home.5. She never _ (run,runs) in the corridors.6. We should _ (walks,walk) in the corridors.7. He _ (dont,doesnt) get up early.8. How often _ (do,does) your father go to bed?练习三、将下列句子改
16、成第三人称 He的句型（看例句）例句：I brush my teeth once a day.- 改：He brushes his teeth once a day.1.I comb my hair twice a day.2.They go to school at six in the morning.3.You wash your face and put on your clothes.4.When do you get up?5.How often do you hang up your clothes?练习四1. He _(watch) TV every day.2. He _(g
17、o) to school on his bike.3. Dad _(wash) the dishes for us every day.4. My uncle _(not go) fishing at the weekends.5. My brother _(not like) playing football.6. The twin brother _(enjoy) going to the concert.7. One of the students often _(do) his homework after 10 p.m. It is wrong.8. Lucy often _(cha
18、t) with Millie.9. Tom usually _(have) a fast breakfast in the morning so he _(feel) hungry early.10. -_ he _ (go) bed early?-Yes, he _.11. The sunshine _(bring) us warmth（温暖）.12. Sam usually _(fly) kites with his father in May.13. Sometimes the little boy_(cross) the road himself.14. Nick _(miss) a
19、turn because he is late.15. Sandy _(study) harder than before.16. My parents often _(let) me choose what to do.17. -_ Amy _(close) the window? -No, she _.18. The little girl often _(cry).19. _ she _(help) you _(do) some cleaning on Sunday?20. He often _(do) some _(shop) or _(listen) to music with hi
20、s family.练习六 句型转换1. I go to school by bus. (用 He做主语)2. Kim plays baseball very well. (变一般疑问句)3. She plays sports every day. (变否定句)4. David doesnt like French. （变肯定句）5.They like watches. (变否定句)6.Alan doesnt watch TV on school nights. （变肯定句）7. We have time to do it. (变否定句)8.John has a car. （对划线部分提问）9.
21、 Do you have a pencil? (把主语改成 she)10.Sonia Hall likes hamburgers .(划线部分提问)练习七、填空，根据括号内的单词写出其正确的形式。1. We often _ (play) in the playground.2. He _ (get) up at six oclock.3. My mother _(have) a nice book.4. That music _(sound) good.5. _ you _（have） a tennis racket?6. Mark sometimes _ (go) to the park with his sister.7. She _（play） sports every day.8. _ Mike_ (read) English every day?9. Can you _（bring） your new picture books here?10. _ your friend _（like） sports?
