动词第三人称单数形式讲解

1、什么是第三人称单数？

人称可分为三类：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、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，也包括单个的动物、东西等。

2、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.

3、动词三单的变化规则

1、一般情况下直接加s，如speak-speaks, like-likes, play-plays

2、以s, x, sh, ch, o 结尾的加es，如 wash-washes, go-goes, do-does, watch-watches

3、以辅音字母+y 结尾的，改y 为i 再加es，如 study-studies，try-tries

4、特殊变化，如 have-has

4、does和doesn’t 在句子中的用法

否定句：主语+don’t/doesn’t+动词原形+（其他）。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. 他不看电视。

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+（其他）。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? By bike.

How does Jane go to school? By bus.

五、动词第三人称单数形式的练习

 A、写出下列动词的第三人称单数。

drink ________ go _______ stay ________ make ________

have_______ pass_______ carry come________

plant_______ fly ________ study_______ brush________

look _________ teach_______ watch______

B、用括号内动词的适当形式填空。

1.He often ________(have) dinner at home.

2.We _______ (not watch) TV on Monday.

3.Nick _______ (not go) to the zoo on Sunday.

4.______ they ________(like) the World Cup?

5._______ your parents _______(read) newspapers every day?

6.The girl _______(teach) us English on Sundays.

7.She and I ________(take) a walk together every evening.

8.Mike _______(like) cooking.

9.They _______(have) the same hobby.

10.My aunt _______(look) after her baby carefully.

11.You always _______(do) your homework well.

12.She _______(go) to school from Monday to Friday.

13.Liu Tao _______(do) not like PE.

14.The child often _______(watch) TV in the evening.

15.Su Hai and Su Yang _______(have) eight lessons this term.

16. Mike’s sister ________ (cook) nice food. I _______ (like) eating it very much.

17._______ (do) your father_______ (watch) TV in the evening?

No, he_______ (not).

18.Tom usually_______ (play) football after school

19. He _______ (live) in a small town near Nanjing.

20.I ______ (go ) to school by bus, and he ______(go) to school by bike.

C、选出正确的答案：

1. She (like / likes) to play football. 2. He (like / likes) drinking milk.

3. I (like / likes) to watch TV. 4. We (like / likes) to play badminton.

5. They (like / likes) to sing songs.

6. She (read / reads) books every day.

7. He (play / plays) computer games every day.

8. It (listen / listens) to the radio every day.

9. Linda (draw / draws) pictures every day.

10. Jane and Linda (play / plays) football every day.

D、把下列句子变为否定句：

1. She draws pictures every day. 2. We like playing football.

3 Linda swims every day. 4 They like playing games.

5. My father reads newspaper in the evening. 6. He likes drawing pictures .

__________________________________ __________________________

E、把下列句子变为疑问句，并做肯定回答。

1. My father can ride a horse. 2. she does her homework at home

3. Miss Green likes dancing very much. 4. we clean the classroom.

__________________________________ _________________________

5. My mother cooks the meals. 6. I clean the bedroom everyday.

____________________________ _______________________________

7.They read books in the classroom. 8. The children sing in the music room.