主谓一致

英语中的主谓一致

主谓一致 主谓一致概述 动词如何变成第三人称单数形式 主语是第三人称单数时的主谓一致

be动词（am/is/are）选用 have/ has的选用 1.主谓一致概述：

在英语中，句子中的动词要与句子的主语在数上保持一致，主语的数决定谓语动词的数。 2.当主语是第三人称单数时的主语一致：

在英语中，主要需要把握的是当主语第三人称单数时的主谓一致，这时的主谓一致主要体现在动词的变化上。

（1）主语的第三人称单数形式有哪些：

1.单数名词（如：a book/ an eraser/the cup） 2.指示代词this/that+单数名词（如：this ruler/that boy） 在英语中，第三人称单数主要有 3.人称代词：he/she/it.

4.单个人名 或 地名（如：Tom/John Beijing/Shanghai/Guiyang/Xiuwen） 5.my mother/your brother/his pencil/our basketball ▲（2）当主语是第三人称单数时，句子的谓语动词要变成第三人称单数形式： 动词原形如何变成第三人称单数形式：

1）一般在动词后加s

如：That sounds good. Mike likes bananas. My brother plays basketball.

2）动词是以s/x/ch/sh结尾时，加es My father watches TV.(watch→watches)

3）动词是以“辅音字母+y”形式结尾的，要先把y改为i，再加es

如：Tom studies English hard.(study→studies) 4）动词是以o字母结尾的，加es

如：She goes to school.(go→goes) ▲（3）be动词（am/is/are）的选用 1）I（我）→am

如：I am a teacher. 2）单数名词作主语时→is

如：This is my pencil.=This pencil is mine. That is her jacket.=That jacket is hers.

This is Tom’s dictionary.=That dictionary is Tom’s. An eraser is on the sofa. 3）复数名词作主语时→are 如：They are my parents. These cups are red.

▲（4）have/has的选用 注意：have（有/吃）的第三人称单数形式是→has 因此：

1）当主语是第三人称单数时用has 如：He has a schoolbag. Tom has some books. My uncle has a hat.

2)除了第三人称单数用has外，其他的都用have They have some bananas. We have three orange.

The boys have two basketballs.

（一）be动词运用的相关练习

[be动词的用法口诀] :

我用 am你用 are; is 连接他/她/它; 所有名复都用 are。 解析: I am; You are; He is;She is; It is; We are; You are; They are.

一、用 am, is, are 填空 1.I _______ a boy.

2.The girl________ Jack's sister.

3.The dog ________ tall and fat. 4. The man with a schoolbag _______ a teacher. 5._______ your brother in the classroom? 6. Where is_______your mother?

7.How is_______ your father? 8. My brother and I _________ at the same school. 9.That red cup __________ mine . 10. Who __________ I?

11.The keys __________ on the desk. 12.Here ___________ a photo of my family. 13.Here _________ some oranges for you.

14. The black dictionary__________ for my cousin. 15.This pair of glasses __________for Yang Ling. 16. The two cups of milk __________ for me.

17.Some water ___________ in the glass. 18.My sister's name ___________Alice. 19. I _________ a student.

20.You _________ a doctor. 21. _________she from Jinan?

22._________you a student? 23. He _____ ______in Class 7, Grade 7.

24.It_____________a quilt. 25. They ____________ my grandparents .

26.__________ your mother in China? 27.___________your friends in New York?

28.What __________her name? 29.These ___________ buses.

30.Those ___________oranges. 31. Where __________ her mother?

32.How old __________your teacher? 33.What class ___________you in? 34. The girl____________Jack’s sister.

35.You, he and I ____________ from China. 36. The man with a schoolbag _____________ a teacher. 37._______ your brother in the classroom?

38. Where _______ your mother? She _________ at home. 39.How ________your father?

40.That ______ a red jacket.

41.I ______ a girl. My name _______ Mary. I ______ in Class 7, Grade 7. I ______ 12 years old. Here ______ my family photo. Look! These ______ my parents and those _______ my grandparents. This boy ______ my brother. He ________ 15 years old now. That ______ my cat, Mimi. It ______ very lovely. 42.My parents _________very busy every day. 43.Jane and Tom _________my friends. 44.My grandparents_________in their room.

（二）have/has选用的相关练习

[have/has用法的记忆口诀]： 动词have表示“有”，位置就在主语后； “三单”主语用has，其他人称用have。

一、根据具体情况，用have或has填空：

1.I ________ a cat. 2.He _________ a dog. 3.She _______ long hair. 4.We _________ a big house. 5.They ________ a happy family. 6.You _________ a good teacher. 7.Jane __________ two big eyes. 8.Tom __________ a red pen. 9.My mother __________a small nose. 10.My father ___________ a blue car. 11.I _________ a dog. 12.Lily _________a toy.

13.Students _________ many books. 14.Girls __________ nine books. 15.The baby __________ two teeth. 16.They ___________ some apples. 17.He____________a good friend. 18.They__________ some strawberries. 19.We___________some flowers. 20.My father____________ a new bike.

21.Our teacher__________ an English book. 22.Our teachers___________a basketball. 23.Their parents___________some blankets 24.Nancy_________many skirts. 25.David__________some jackets. 26.My friends__________a football. 28.What do you__________? 29.What does Mike__________? 30.What do your friends___________? 31.What does Helen___________? 32.His brother________a basketball. 33.Her sister_________a nice doll. 34.Miss Li__________an English book.

(三)主语是现三单的主谓一致练习

（一）写出下列各动词的第三人称单数形式：

sound______ play_______ watch_______ like____________ wash_________ match _______ guess______ study______ finish_________ go___________ (二)用词的适当形式填空：

1.What time_________ his father_________(do) the work? 2.He _________(get) up at five o’clock.

3.__________you_________(brush) your teeth every morning. 4.What ________ ( do ) he usually ________( do ) after school?

5.Tom ________ ( study ) English, Chinese, Maths, Science and Art at school. 6. Alan sometimes __________(go) to the park with his sister.

7.At eight at night, she __________( watch ) TV with her parents. 8.________Mike________( read ) English every day?

9.How many lessons________ your classmates______( have ) on Monday? 10.We often___________ ( play ) football in the playground. 11. Ling Ling and I (have) ten story-books. 12.He (speak) very good English.

13.Mike (do) his homework after his supper.

14.Some of my friends (come) from the USA, but Sam (come) from the UK.

15.My brother (study) very hard. He (like) Maths very much. 16.We (want) to be happy every day. 17. The Greens (live) in a small village. (三)选择题：

( ) 1. _________ you have a book?

A. Do B. Are C. Is ( )2. They _________ on a farm.

A. working B.works C. work ( ) 3. Does Peter like to watch TV?__________.

A. Yes, he like B. No, he doesn’t C. No, he likes ( )4. She __________ her homework in the afternoon.

A. doing B. does C. do ( )5. —How________ he go to work?

—He _________ to work by bike. A. does ;go B. do;goes C. does;goes ( )6. ________she __________ home at six every day?

A. Is , leave B. Does , leave C. Is , leaves ( )7. Mr. Yang _________us English this term.

A. teach B. teaches C. teachs