she often has lunch in the dinner room变单三怎么变？
有。意思就是吃午饭。当然，词组原形是 “have lunch”。 “has lunch” 用于第三人称一般现在时。
比如：She often has lunch at twelve. 她常常在12点吃午饭。
Linda has lunch in the office when she is on duty. 琳达值班的时候会在办公室吃午饭。
三单形式”是指句子中主语为“单数第三人称”（如she,he,it等代词或The pen这样的名词）时，谓语动词要改变形式，一般在词后加s，（如stand--stands)以ch,sh,s,x等结尾的一般加es,(如wash--washes,fix--fixes)以辅音字母加y形式结尾的去y改ies(如fry--fries)
当主语是第三人称的时候谓语要用单三形式
还有就是当主语是动名词，不定式，或者是主语从句也用单三
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。但有些同学们对于哪些主语是第三人称单数还不十分清楚，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：
① Peter watches TV at 9:30. Peter 总是在9:30看电视.
② Beijing is in China. 北京在中国。
③ My 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。
② This book is yours. 这本书是你的。
③ That car is red. 那辆小汽车是红色的。
④ The 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：
① Everyone is here. 大家到齐了。
② There is something wrong with the watch. 这块手表有毛病。
③ This is a pen. 这是一支钢笔。
④ 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：
① The milk is in the glass. 牛奶在玻璃杯里。
② 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：
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-likes read-reads play-plays eat-eats
2.以s,x,ch ,sh等结尾的单词加 es , 如： watch-watches teach-teaches miss-misses fix-fixes
4.以辅音字母加o结尾的单词，加 es 如: go-goes do-does
3.以辅音字母加y结尾的单词，变y为i加 es , 如： fly-flies
附加:have--has
动词单三的练习
一. 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 _____(is ) ok! 14. Nobody _____ (be) in the park .
15. There _____（be）someone in the classroom .
16. Uncle wang _____(watch) TV at home. 17. 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 .
二. 把下列句子改成第三人称单数句的肯定句、否定句、一般疑问句，并做回答。
1. I like playing the pinao in the music room . (Tom)
2.I do my homework at 4:30 in the afternoon . （she）
3. I have breakfast at twenty-five past seven in the morning .(her father )
4. I watch TV at quarter past six with my parents . (Tom’s sister)
三、写出下列动词的第三人称单数形式
1. work_______ 2. watch_________ 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. skip ____ 42. eat____
43. buy____ 44. point_____ 45. live_____
46. say____ 47. want____ 48. talk_____
49. invite_____ 50. count____ 51. take____
52. brush ____ 53. stay _____ 54. need____
55. pack_____ 56. help _____ 57. find____
酆独感冒：[答案] She often has lunch at home.改成一般疑问句和否定回答.Does she often have lunch at home?No,she doesn't.He goes to school by bike.改成一般疑问句和否定回答以及问他怎么去上学.Does he go to school by bike?...
涧西区13990555591： she often eating lunch at home这句话对不对? - ？
酆独感冒： 不对的.often“常常的,经常的”,说明句子应该是一般现在时态.主语she是第三人称单数形式,后面的谓语动词也要用三单形式.表示“吃一日三餐”常用动词have;eat后常接具体的食物名称如eat an apple,eat a piece of bread.所以原句应为:She often has lunch at home.她经常在家吃午饭.如果满意答案,请记得及时采纳,谢谢!
涧西区13990555591： She often has lunch at home.改成一般疑问句和否定回答怎么做? - ？
酆独感冒： 答案是: 你经常在家里吃午饭吗? Does she often have lunch at home ? No ,she doesn't☞ ♧手工翻译☀尊重劳动☀欢迎提问☀感谢采纳♧ ☜
涧西区13990555591： she often( )(have) lunch at school. - ？
酆独感冒： eats she eats lunch at school 她在学校吃午饭she,lunch,schooleats she eats lunch at school 她在学校吃午饭
涧西区13990555591： 一道英语题目啊首字母填空一.根据首字母填空题目she often has some (f )after meals,she likes apples best.she is very(b )every day(b ) she has many things to ... - ？
酆独感冒：[答案] fruits;busy;because;teachers;daughter;parents. 她经常在饭后吃一些水果,她最喜欢苹果.因为她都有很多事情做,所以她每天都很忙.所有老师都很喜欢她,他们认为她是一个好学生.在家她是一个好女儿,她经常帮助父母做家务. subjects;science;...
涧西区13990555591： 她经常有很多家庭作业 用英语怎么说She often has( )( )( )( )四个词 - ？
酆独感冒：[答案] a,lot .,of.,homework
涧西区13990555591： she often has a glass of milk and eats some bread 对吗 - ？
酆独感冒： 语法上是可以的.但去掉eats更好.另外,这句子实际是不好的.often用得不合适.
涧西区13990555591： She often reads books.(这句话对吗?错的话,错在哪里?) - ？
酆独感冒： 这句话没有语法错误.she 主语 often副词 read谓语(reads 三人称单数) books.宾语
涧西区13990555591： she often eat salad找出错的并改过来 - ？
酆独感冒： 您好,很高兴为您解答!【改错】 She often eat salad. eat 改为 eats 因为:主语She是第三人称单数,并且often提示了时态为一般现在时,所以谓语用三单形式.~~~~~~~~~~~详细耐心解答,满意欢迎采纳~~~~~~~~
涧西区13990555591： 按要求进行句型转换. She often has a good time on Sundays. (改为同义句) She often - ______ - _______ - on Sundays. - ？
酆独感冒：[答案] 答案:enjoys herself
