动词的第三人称单数形式详解

动词的第三人称单数形式详解
一、什么是第三人称单数？
人称分为三类：第一人称，第二人称和第三人称。

第一人称：I, we
第二人称：you
第三人称：he, she, it, they和人名类（如：Peter, Jane, Liu Yun, my father等）。

结合以上知识，第三人称单数就是he, she, it和单个的某人，也包括单个的小动物。

二、动词为什么要变成相应的三单形式？
在一般现在时中，跟在第三人称单数后面的动词也要变成相应的三单形式。

例如：
I watch TV every day. 如果主语是三单，动词要变化：He watches TV every day.
She watches TV every day.
Jane watches TV every day.
三、动词三单的构成规则：
1．一般情况下，直接加-s，如：play-plays, see-sees, listen-listens
2．以s. x. sh. ch. o结尾，加-es，如：guess-guesses猜, wash-washes洗, watch-watches, go-goes, do-does做
3．以“辅音字母+y”结尾，变y为i, 再加-es，如：study-studies学习
4. 特殊变化：have-has
四、does和doesn’t在句中的用法：
否定句：主语+ don’t / doesn’t +动词原形(+其它)。

如：
I don’t watch TV. 我不看电视。

当主语为第三人称单数时，要用doesn’t构成否定句。

如：
He doesn’t watch TV. 注意doesn’t 后面用动词原形watch, 而不是watches.
一般疑问句：Do( Does ) +主语+动词原形+其它。

如：
Do you watch TV?
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 watch TV?
Yes, she does. / No, she doesn’t.
特殊疑问句：疑问词+一般疑问句。

如：How do you go to school? How does Jane go to school?
By bike. By bus.
专项练习
一、写出下列动词的第三人称单数形式。

(每题2分)
drink ___________ go __________ stay ___________ make __________
look __________ have_________ pass_________ carry _________
come__________ watch_________ plant__________ fly ___________
study__________ brush___________ do____________ teach__________
play___________ eat___________ see___________ read___________
二、用括号内动词的适当形式填空。

(每题2分)
1. He often ________(have) dinner at home.
2. Daniel and Tommy _______(study) in Class One.
3. We _______ _______(do not watch) TV on Monday.
4. Nick _______ _______(do not go) to the zoo on Sunday.
5. ______(do) they ________(like) the monkey?
6. _______ (do) your parents _______(read) newspapers every day?
7. The girl _______(teach) us English on Sundays.
8. She and I ________(take) some pictures on Sunday.
9. Mike _______(like) cooking.
10. They _______(have) the same hobby.
11. My aunt _______(look) after her baby carefully.
12. You always _______(do) your homework well.
13. She _______(go) to school from Monday to Friday.
14. Liu Tao _______(do) not like PE.
15. The child often _______(watch) TV in the evening.
三、改错(划出错误的地方，将正确的写在横线上) (每题3分)
1. Is your brother study 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 h omework on Sundays. _________________
四、问答。

(每题3分)
1. Do you like English? _______________________________________
2. Does your mother like apples? ________________________________
3. Does the dog eat rice? _______________________________________
4. What colour does your father like? _____________________________
5. What’s your grandpa’s hobby? _________________________________。