语法新课堂何谓第三人称单数形 式一.第三人称单数 形式的词尾变化.在一般现在时中, 当主 语是第三人称单数形 式时,行为动词用第三 人称单数形式,即加-s 或 es. 具体方法如 下:一般情况下,直接加-s.如:work-works play-plays rain-rains see-sees2. 以 sh,ch,s,x或o结尾 的词后加-es.如: wash-washes teach-teachesfix-fixes do- does go-goes3.以辅音字母加-y结 尾的, 先把y变成i,再 加-es.如:study- studies fly-fliescarry-carries二. 哪些主语 是第三人称单 数1.人称代词he, she, it是第三人 称单数. 1).He likes watching TV.他喜欢看电视. 2).She has lunch at twelve.他十二点吃午餐. 3). It looks like a cat. 它看起来象只猫.2. 单个人名.地名或称呼作主语时 ,是第三人称单数形式.如: 1).Han Mei looks like her mother.韩梅看起来像她的母亲. 2).Beijing is in China. 北京在中 国. 3). Uncle Wang often makes cakes.王叔叔经常做蛋糕.3.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. 马是一种有用的动物. 2).This book is yours.这本书是你 的. 3).That car is red.那辆汽车是红色的. 4).The cat is Lucys.这只猫是露西 的.someone, somebody, nobody, everything, something等不定代词及指示 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)This is a pen.这是一支钢笔 . 3).That is an eraser.那是一 块橡皮.5. 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. 那块面包很小.6. 当数字或字母做主语 时,看做第三人称单数. 如: 1).“6” is a lucky number. “6”是个吉利数字. 2).“I” is a letter. “ I”是个字母.专项习题精练 (着眼高分 查漏补 缺) 用括号中所给动词 的适当形式填空Jack_ (love) his mother very much. Mary and Lily_ (come) from the same country. The juice(果汁)_ (be) in the fridge(冰箱). “2”_ (sound) like “too”.lovescomeissounds5. The tiger_ (be) a dangerous animal. 6. Shanghai_ (be) a modern city. 7. Everybody_ (know) Jay Chou. 8. This_ (be) my new pen pal.isisknowsis9. There_ (be) some bread on the table. 10. Either I or he_ (like) playing soccer.islikes巩固练习题： 写出下列动词的第三人称单数形式：sit- guess-diego- rush- reach- touch- brush- fly-copy- say-run- do- fix-live- cry- enjoy- have- wish- play- Tie teach- buy-study- drink- go-stay- make look-carry come- watch- plant- fly - do-二、用括号内动词的适当形式填空。 1. He often _(have) dinner at home. 2. Daniel and Tommy _(be) in Class One. 3. We _(not watch) TV on Monday. 4. Nick _(not go) to the zoo on Sunday. 5. _ they _(like) the World Cup? 6. What _they often _(do) on Saturdays? 7. _ your parents _(read) newspapers every day? 8. The girl _(teach) us English on Sundays. 9. She and I _(take) a walk together every evening. 10. There _(be) some water in the bottle. 11. Mike _(like) cooking. 12. They _(have) the same hobby. 13. My aunt _(look) after her baby carefully. 14. You always _(do) your homework well. 15. I _(be) ill. Im staying in bed. 16. She _(go) to school from Monday to Friday. 17. Liu Tao _(do) not like PE. 18. The child often _(watch) TV in the evening. 19. Su Hai and Su Yang _(have) eight lessons this term.20. What day _(be) it today? Its Saturday.三、按照要求改写句子 1. Daniel watches TV every evening.(改为否定句) _ 2. I do my homework every day.(改为一般疑问句，作否定回 答) _ 3. She likes milk.(改为一般疑问句，作肯定回答) _ 4. Amy likes playing computer games.(改为一般疑问句，作 否定回答) _ 5. We go to school every morning.(改为否定句) _ 6. He speaks English very well.(改为否定句) _ 7. I like taking photos in the park.(对划线部分提问) _ 8. John comes from Canada.(对划线部分提问) _9. She is always a good student.(改为一般疑问句，作 否定回答)_10. Simon and Daniel like going skating.(改为否定 句)_ _ 四、改错(划出错误的地方，将正确的写在横 线上) 1. Is your brother speak English? _ 2. Does he likes going fishing?_ 3. He likes play games after class. _ 4. Mr. Wu teachs us English._ 5. She dont do her homework on Sundays. _