动词的第三人称单数形式
动词的第三人称单数形式
一小学英语动词的单三形式讲解
大家都知道,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:
①Han Mei looks like her mother. 韩梅看起来像她的母亲。②Beijing is in China. 北京在中国。
③Uncle 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:
① A horse is a useful animal. 马是有用的动物。
②This book 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。
1. 动词 have ,遇到主语是第三人称单数时,要用 has;动词 be 的第三人称单数形式是is。
2. 含有动词第三人称单数形式的句子变否定句时,要用 doesn't + 动词原形,如:
He goes to school at six in the morning. (变否定句)→ He doesn't go to school at six in the morning.
3. 对含有动词第三人称单数形式的句子提问时,要用助动词does,如:
She goes home at five every day. (对划线部分提问)→ When / What time does she go home every day?
一般现在时中的第三人称单数形式
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。
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动词单三的练习三写出下列动词的第三人称单数。
go do
play jump swim run
put sing
dance come
get have fly
read write
look drink
eat walk
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 .
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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. That cat _____(be ) mine .
17. A little water _____(be) in the cup.
18. Cheese _____(taste) well .
19. The letter “O” _____(look) like zero.
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. You need a pencil-box for new term . (Sam’s sister)
3.I do my homework at half past four in the afternoon . (she)
4. I have breakfast at twenty-five past seven in the morn ing . (her father )
5. I watch TV at quarter past six wit h my parents . (Tom’s sister)
二小学英语所有句型转换的方法
基本助动词只有三个:be, do, have, 他们没有词汇意义,只有语法作用,
第3 / 6页如协助构成进行体,完成体,被动态,否定句,疑问句等。
一、肯定句改否定句的方法——一步法
1、在be动词后加not。如:is not , are not , am not, w as not, were not;
2、在can,should, will等后加not。如:cannot, should n ot, will not;
3、上述都没有的,在动词前加助动词否定形式don’t/doesn’t /didn’t。
4、 some 改成any。
二、肯定句改一般疑问句的方法——三步法
1、把be动词放在句首,剩下的照抄,(some 改成any,my改成your等)句点改成问号。
2、把can,shall, will等放到句首,剩下的照抄,(some 改成any,my改成your等)句点改成问号。
例如:陈述句: They are in the park. He can play the guita r.. 一般疑问句: Are they in the park? Can he play the guitar?把下列句子变成一般疑问句
1. I am listening to music.
_______________________________________
2. Mike is a student.
_______________________________________
3. Sarah can clean the classroom.
________________________________________
4. They are in the zoo.
________________________________________
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5. There are some flowers in the vase.
________________________________________
6.This is my sister.
_________________________________________
7.We are sweeping the floor.
__________________________________________
3、上述都没有的,在句首请助动词Do/Does/Did帮忙,剩下的照抄,(some 改成any,my改成your等)句点改成问号。
例如:陈述句: I like the ducks. He likes the dogs.
一般疑问句:Do you like the ducks? Does he like the dogs? 把下列句子改为一般疑问句。
1. We need some masks.
_________________________________
2. They like making the puppet.
_________________________________
3. Su Hai and Su Yang live in a new house.
_________________________________________________
4.I put a book on my head.
_________________________________________________
5. They sing “In the classroom”together.
_________________________________________________
6.We play basketball on Sundays.
动词的第三人称单数形式
动词的第三人称单数形式规律如下:
1、多数在动词后加s
play—plays like—likes read-reads sing-sings
dance-dances cook- cooks look- looks
2、以s,x,sh,ch,o结尾的动词加es
go—goes wash—washes watch-watches catch-catches do- does
3、以辅音字母加y结尾,把y改i再加es
fly—flies study—studies try-tries
特别注意:以y 结尾的动词变化,看清楚y前面的那个字母是
元音还是辅音?辅音+y的,要改y,例如carry carries; 元
音+y 的,不改y,例如 play plays.
4、动词have 的第三人称单数形式是has,这是一个
不规则的变化,我们经常会遇到。
5、含有动词第三人称单数的句子,在变否定句时要
在动词前加doesn’t;变疑问句时要在主语前加助动词does。
这时句子的谓语动词改为原形。
如: Alice usually plays in the park.
Alice doesn’t usually plays in the park.