英语动词的单三形式讲解在一般现在时中，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。
哪些主语是第三人称单数呢？现归纳总结如下：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：①Peter watches TV at 9:30. Peter 总是在9:30看电视.②Beijing is in China. 北京在中国。
③My father often eats dinner at 7:00. 我爸爸常常7:00吃晚饭.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：① A horse is a useful animal. 马是有用的动物。
②This boo k is yours. 这本书是你的。
③That car is red. 那辆小汽车是红色的。
④The cat is Lucy's. 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：①Everyone is here. 大家到齐了。
②There is something wrong with the watch. 这块手表有毛病。
③This is a pen. 这是一支钢笔。
④That 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：①The milk is in the glass. 牛奶在玻璃杯里。
②The 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：①"6" is a lucky number. "6"是个吉利数字。
②"I" is a letter. "I"是个字母。
第三人称单数形式的构成1.一般直接在词尾加s，如：want-wants like-likesread-reads play-plays eat-eats2.以s,x,ch ,sh等结尾的单词加 es , 如： watch-watches teach-teaches miss-misses fix-fixes3.以辅音字母加o结尾的单词，加 es如: go-goes do-does4.以辅音字母加y结尾的单词，变y为i加 es , 如：fly-flies study-studies附加:have--has一、写出下列动词的第三人称单数形式1. work_______2. find____3. clean________4. write_______5. teach_________6. wash__________7. play_______8.read________9. go__________10. do__________ 11. fly________ 12.study________13. drink _______ 14. cry_______ 15. have________16. sit ____17. swim _____ 18. draw ______19. make ____ 20. run _____21. carry _____22.leave _____ 23. arrive ____ 24. watch _____25.clean____ 26. walk_____ 27. stay_____28.jump ____29. come _____ 30. pass_____31. stand_____ 32. like ______33. love_____34. smile_____ 35. laugh____ 36. know_____37. speak______ 38. wear ____ 39. look____40. drive_____41.have ____ 42. eat____43. buy____ 44. point_____45. live_____46. say____ 47. want____ 48. talk_____49. learn_____ 50. count____ 51. take____52. dance ____53. stay _____ 54. need____55. pack_____ 56. help _____二、根据括号里单词的适当形式填空1. She _____ (be ) a writer.2. It _____(look) like a monkey.3. We_____(go) to the park.4. He _____(go) to school.5. Amy_____(like) eating fruits.6. Hebei_____(be) next to Shandong.7. Our teacher _____(be) talking with John.8. Whose book _____(be) this ?9. Dogs _____(be) our friends .10. That blackboard _____(be) clean.11. The desk _____(be) Tom’s.12. Somebody _____(do) her homework .13. Everybody _____(be ) OK!14. Nobody _____ (be) in the park .15. There _____（be）someone in the classroom .16. Uncle wang ofen _____(watch) TV at home.17. Sometimes Bob _____(read) book in the bookshop.18. He_____（eat）breakfast in the morning .19. Ken _____(have) math class on Tuesday.20. “4” _____(be) a bad number in China .21.He often ________(have) dinner at home.22.We _______(not watch) TV on Monday.23.Nick _______(not go) to the zoo on Sunday.24.______ they ________(like) the World Cup?25.What _______they often _______(do) on Saturdays?26._______ your parents _______(read) newspapers every day?27.The girl _______(teach) us English on Sundays.28.She and I ________(take) a walk together every evening. 9.There ________(be) some water in the bottle.29.Mike _______(like) cooking.30.They _______(have) the same hobby.31.My aunt _______(look) after her baby carefully.32.You always _______(do) your homework well.33.I _______(be) ill. I’m staying in bed.34.She _______(go) to school from Monday to Friday.35.Liu Tao _______(do) not like PE.36.The child often _______(watch) TV in the evening. 37.Su Hai and Su Yang _______(have) eight lessons this term.38. He________ TV every evening. (watch)39.John ________ like his father. (look)40、I ________ in the corridors. (walk)41、He _________ in the corridors. (run)42、She ___________ her face once a day. (wash)43、They ____________ their teeth once a day. (brush)44、You ___________ up your clothes once a day. (hang)45、We ____________ our home work once a day. (finish)。