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1、动词第三人称单数形式在一般现在时中，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。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： Peter watches TV at 9:30. Peter 总是在 9:30 看电视。Beijing is in China.北京在中国。 My father often eats d
2、inner at 7:00.我爸爸常常 7:00 吃晚饭。三、单数可数名词或“this/that/ihe+单数可数名词”做主语时，是第三人称单数。如：Thal sounds good.这听起来不借。That car is red.那辆小汽车是红色的。This belongs to me.这属于你。The cat is Lucys.这只猫是露茜的。四、不可数名词作主语时为第三人称单数。如：There is some milk in the glass.玻璃杯里有一些牛奶。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： is a luc
3、ky number. “6” 是吉利数字。(tr is a letter. I” 是个字母。第三人称单数形式的构成.一般直接在词尾加 s,如：want-wants; like-likes; read-reads; play-plays; eat-eats; buy-buys; say-says1 .以 s, x, sh, ch 等结尾的单词加 es,如：guess-guesses; fix-fixes; watch-watches; teach-teaches; finishfinishes.以辅音字母加y结尾的单词，变y为i加es,如:study-studies; tidy-tidies;
4、fly-flies附力口： do-does; go-goes; have-has动词三单的练习一、写出下列动词的第三人称单数形式。1. work 3. wash4. write5.teach6. have7. play 8. go 9. study_.11. fly _12. stay 13. sit 14. make 15. run _16. leave 17. arrive 18. watch19. come20. pass21. look22. like 23. love 24. eat _25. drive26. take27. brush28. buy 29. point 30. l
5、ive _31. say 32. want 33. talk _34. stay 35. help 36. find .二、根据括号里单词的适当形式填空。1. She wants(be) a writer.2. It (look) like a monkey.3. My classmates and I (go) to the park.4. He ( not go) to school on Saturday.5. Amy (like) eating fruits.6. Hebei (be not) next to Sichuan.7. Whose books (be) these?8. M
6、y little brother wants(eat) ice-cream.9. -Lets (play) soccer together.iThat (sound) good.10. he play volleyball after school? (do)Yes, he. (do) He volleyball after school, (play)Uncle Wang always(watch) TV at home on weekends.11. Bob (guess) the right answer to that question.12. That girl (eat) brea
7、kfast in the morning.13. Ken ( not have) math class on Tuesday.三、根据要求把下列句子改成第三人称单数句。13.1 like playing the piano in the music room.(将主语改为 Tom)She does her homework at 4:30 in the afternoon.(改为否定句)2. My father has breakfast at 7:00 in the morning.(改为一般疑问句并作肯定回答)I watch TV with my parents.(将主语改为 Toms s
8、ister)3. I am a friend of Jerrys.(改为一般疑问句并作肯定和否定回答)We arc English teachers.(改为一般疑问句并作肯定否定回答)4. Sally teaches English every day.(改为一般疑问句并作肯定否定回答)8.1 like playing basketball. I want to be a basketball player.(将主语改为 Frank)四、用动词的正确形式填空。Hello, everyone. This is my friend Jim. Jims father (work) in a bank
9、. He 2 (go) to work by bus every morning. Sometimes he 3 (ride) his bike. But he 4 (be) never late for work. He 5 (work) very hard. Jim 6 (like) his father very much. They often 7 (play) table tennis in Jims school. Jim 8 (like) to talk with his father. His father likes 9 (hear) Jim talking about his friends and his school. On Saturday or Sunday, they often 10 (play) on the computer. Jim 11 (have) many computer games. But he 12 (not play) them every day. He also 13 (work) hard at his lessons.