动词第三人称单数形式构成规则
般现在时动词第三人称单数形式构成规则(一般现在时中主语时第三人称
1大多数动词在词尾加“S”如:
①stop —stops make —makes read —reads play —plays [z]
2、以辅音字母加“ y”结尾的,要先将“ y”变为“ i ”,然后在加“ es”读[iz]女口:
fly —flies carry —carries study —studies worry —worries
3、以“ s, x, ch, sh ”结尾的,在词尾加“ es”,发音为如:
teach —teaches watch —watches
4、以“ o”结尾的动词,加“ es”,如:
go —goes do —does
5、以不发音字母“ e”结尾的开音节词,加“s ”女口:close —closes [iz]
6、be 动词包括:am,is ,are 。第三人称单数用is ;过去式为was ;复数用are ,过去式为were.
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 does n'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?
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,原形后加
即常在动词-s 或-es 。
I 什么是一般现在时?一般现在时的基本用法有哪些呢?
No. 1 】一般现在时的功能
1. 表示事物或人物的特征、状态。如:The sky is blue. 天空是蓝色的。
2. 表示经常性或习惯性的动作。如:I get up at six every day. 我每天六点起床。
标志词(时间状语):
always, every week (day, year, month …),once a week,
every …,sometimes, at …,on Sun day uauslly often,never,hardly ...................
3. 表示客观现实。如:The earth goes around the sun地球绕着太阳转。
No. 2 】一般现在时的构成
1. be 动词:主语+be(am,is,are)+ 其它。如:
I am a boy. 我是一个男孩。
2. 行为动词:主语+行为动词(+其它)。如:
We study English. 我们学习英语。
当主语为第三人称单数(he, she,it)时,要在动词后加"-s"或"-es"。如:
Mary likes Chinese. 玛丽喜欢汉语。
【No. 3 】一般现在时的变化
1. be 动词的变化。
a 否定句:主语+ be + not + 其它. 如:
He is not a worker. 他不是工人。
b 一般疑问句:Be +主语+其它。
如:-Are you a student?
-Yes. I am. / No, I'm not.
c 特殊疑问句:疑问词+一般疑问句。如:
Where is my bike?
2. 行为动词的变化。
a 否定句:主语+ don't( doesn't ) + 动词原形(+ 其它)。如:
I don't like bread.
b 当主语为第三人称单数时,要用doesn't 构成否定句。如:
He doesn't often play.
c 一般疑问句:Do( Does ) + 主语+ 动词原形+ 其它。如:
- Do you often play football?
- Yes, I do. / No, I don't.
当主语为第三人称单数时,要用does 构成一般疑问句。如:
- Does she go to work by bike?
- Yes, she does. / No, she doesn't.
【No. 4 】特殊疑问句:疑问词+一般疑问句。如:
How does your father go to work?
II 哪些主语是第三人称单数? 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。
he 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:
① Everyone 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:
① The milk is in the glass.
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. T 是个字母。
巩固练习题:
I 写出下列动词的第三人称单数形式:
sit-
die-
rush-
touch-
fly-
say-
do-
live--
enjoy--
wish-
Tie-
buy--
牛奶在玻璃杯里。
guess-
go-
reach-
brush-
copy-
run-
fix-
cry-
have-
play--
teach--
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. I ' m 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?
-It ' s 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 don ' t do her homework on Sundays. _________________