主语 谓语 宾语
eg. She reads books.
在一般现在时中，当主语为第三人称单数时，动词要用“s”型（即第三人称单数形式）。
所谓动词“s”型的构成，可按名词变复数的规则来记，即：
1）在动词尾直接加 s。如：
play—plays， want—wants， work—works， know—knows， help—helps，get—gets
2）以字母s、x、ch、sh或o结尾的动词加-es；如：
guess—guesses， fix—fixes， teach—teaches， brush—brushes， go—goes，do—does，watch—watches，catch—catches
3）以辅音字母＋y结尾的动词，先变y为i，再加-es。如：
study—studies，carry—carries，fly—flies，worry—worries
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：
①A 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。
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：
①The milk is in the glass. 牛奶在玻璃杯里。
②The 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。
七、关于do和does的使用方法：
1）第三人称单数用了 does 后面就不用动词的s形式了,而用动词原形.
2）变为疑问句,要在句首加"do" does ; 变为否定句, 要在动词前面加"do not ,does not", 可以简写为 "don't".
背：I do, you do, we do, they do, Jack and Tom do. He does, she does, it does, lily does.
1. [Do/Does]_____ _ he watch TV at night? Yes he does.
2. [Do/Does]______ you go to school everyday? No, I don’t.
3. [Do/Does]______ Jack and Peter like apples?
4. [Do/Does]______ Tina go swimming on Sunday?
5. [Do/Does]______ they play football? Yes, they ___[do/does].
6. [Do/Does]_____ _ we have a good teacher? Yes, we ____[do/does].
7. [Do/Does]__ __ they jump rope ? No, they ___[do not/does not].
8. [Do/Does]_____your dog walk in the zoo?
9. [Do/Does]____ I have a big nose? No, you _____[do not/does not].
10. [Do/Does]____ your cats eat fish? Yes, they _____.[do/does].
八、have的第三人称单数为has。
用 have或has填空。
1．I ________ a nice picture.
2．He ________ a good friend.
3．They _________ some kites.
4．We ________ some flowers.
5．She __________ a duck.
6．My father __________ a new bike.
7．Her mother _________ a vase.
8．Our teacher _________ an English book.
9．Our teachers _________ a basketball.
10．Their parents __________ some story books.
11．Nancy _______ many skirts.
12．David ________ some jackets.
13．My friends ________ a football.
14．What do you ________ ?
15．What does Mike ________ ?
16．What do your friends _________ ?
17．What does Helen _________ ?
18．His brother _______ a basketball.
19．Her sister _______ a nice doll.
20．Miss Li ________ an English book.
训练题：
1.Let him _____(play)basketball.
2.Everyone_____(know)what he really like.
3.Those girls____(be)my sister.
4.That girl_____(call)me every Sunday.
5.How___(do)she_____(spell)the word?
选择题：
1. I to school every day.
A. go B. goes C. going
2. He teeth every morning.
A. brush B. brushes C. brushing
3. The birds singing.
A. like B. likes C. like to
4. What does Lily doing?
A. like B. likes C. to
5. you like eating apples?
A. Do B. Does C. Doing
6. he swim every afternoon?
A. Do B. Does C. Doing
7. Tom likes in the classroom.
A. singing B. sing C. to singing
8. –Does Sally like swimming?
--No, she .
9. Peter and Mary milk every day.
A. drink B. drinking C. drinks
10. they read English every day?
A. Does B. To C. Do
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