1、Be动词的用法一、请记住以下口诀: 我用am,你用are,is连着他,她,它; 单数名词用is,复数名词全用are。 变疑问,往前提,句末问号莫丢弃。 变否定,更容易,be后not莫忘记。 疑问否定任你变,句首大写莫迟疑。 二、Be动词在一般过去时中的变化: 1am 和is在一般过去时中变为was。(was not = wasnt) 2are在一般过去时中变为were。(were not = werent) 3带有was或were的句子,其否定、疑问的变化和am,is, are一样,即否定句在was或were后加not,一般疑问句把was或were调到句首 am,is are 都属于be动词,
2、be是他们的原型 be动词的一般现在时有三种形式,即:am, is, are。 1. 如果主语是第一人称I(我)时,be动词用am。 如:I am a student. 我是一名学生。 I am 还可缩写成Im。如: Im David. 我是大卫。 2. 如果主语是you (你,你们), they (他们,它们,她们)或名词复数 (两个以上的人或物)时,be动词必须用are。 如:Are you twelve? 你是十二岁吗? Tom and Lily are good friends. 汤姆和莉莉是好朋友。 They are at school. 他们在学校。 are与主语还可缩写。如: W
3、e are= Were, They are =Theyre, You are = Youre。而are与 not可缩写成arent。 如:They arent students. 他们不是学生。但是am与not不能缩写。 3. 如果主语是单数名词、不可数名词或单数第三人称代词(he, she, it)时,be动词用is。 如:My mother is a teacher. 我的妈妈是一名老师。 He is a student. 他是一名学生。 is也可与主语缩写,如: He is = Hes, My mother is = My mothers等。但是This is不可缩写。而is与not可缩
4、写成 isnt。 如:This isnt a book. 这不是一本书。 根据以上叙述我们可以把动词的用法以口诀的形式表述出来: 我(I)是am, 你(you)是are, 剩下is留给她(she), 他(he), 它(it), 两个以上都用are。 be动词am,is,are,如何正确使用它。我用am,你用are,is用于他、她、它。以上主语是单数. 复数主语全用are。指示代词作主语,This,that用is,These,those要用are。若是变为否定句,Not系动词后面加。若变一般疑问句,句首A m,Is,Are,句末问号莫忘加。回答一般疑问句,Yes,或N o简回Be动词的用法口诀
5、:我用am,你用are,is连着他,她,它; 单数名词用is,复数名词全用are。 变疑问,往前提,句末问号莫丢弃。 变否定,更容易,be后not莫忘记。 疑问否定任你变,句首大写莫迟疑。一用be动词适当的词填空。1. I _ from Australia. 2. She _ a student. 3.Jane and Tom _ my friends. 4. My parents _ very busy every day. 5.I _ an English teacher now. 6.Where _ you from? 7.The light _ green. 8.My name is
6、_ Li Dong.I _ twelve. 9._ they your new friends? 10. I _ a boy. _ you a boy? No, I _ not. 11. The girl_ Jacks sister. 12. The dog _ tall and fat. 13. _ your brother in the classroom? 14. Where _ your mother? She _ at home. 15. Whose dress _ this? 16.That _ my red skirt. 17.Who _ I? 18. Some tea _ in
7、 the glass. 19.Gao shans shirt _ over there. 20. My sisters name _Nancy. 21. This _ not Wang Fangs pencil. 22. _ David and Helen from England? 23. We _ friends. 24. She _ a teacher. 25. I _ a girl. 26. Many ants _ in my house. 27.His mother _ fat. 28.He _ in Class 4, Grade 1. 29.What _ your name? 30
8、. These _ buses. 31. What class _ you in? 32.It_ a car. 33.Helen_ a student 34.This _my book. 35.My father_a cook. 36.Jacks friend_in Class One. 37.You _ a doctor. 38. They _ cars. 39.That_her dog. 40.The cat_on the desk. 41.The books_under the table. 二.选择1.She _ Miss Hen. 2.I _ sorry. 3.Here _ my b
9、all. 4.You _ number eight. 5.What_this? 6.Helen_ a student. 7.Those _oranges. 8. How old _your teacher? 9. Where _ _ her mother? 10.The two cups of milk _ for me. 11. Eric and Kathy _ my students. 12. Your books _ not good. 13. He _ a boy. 14. It _ my dog. 15.Whose socks _ they? 16. _ there any chai
10、rs in the classroom 17 .The man with big eyes _ a teacher. 18.How _ your father? 19.Mike and Liu Tao _ at school. 20.I _ a student. 21. They _ teachers. 22.This_my mother. 23._ you a student? Yes,I am. 24.The jam _ good for my grandma.三.写出下列词适当形式:1.I am (缩略形式) _ 2.is (复数)_3.we are (缩略形式) _ 4.are not
11、(缩略形式) _5.is not (缩略形式) _ 6.can not(缩略形式) _ 7.shes(完整形式) _ 8.its(完整形式) _ 9.theyre(完整形式) _ 10.dont(完整形式) _三. 将下列句子变成否定句和一般疑问句1.His brother is a teacher.否定句: 一般疑问句: 2.Those are his parents.否定句: 一般疑问句: 3.Im 14 years old.否定句: 一般疑问句: 4.The ruler is on the table.否定句: 一般疑问句: 5.Tom is my teacher .否定句: 一般疑问句: 6.My shoes are 20 yuan .否定句: 一般疑问句: 7.This is a pen .否定句: 一般疑问句: 8.My name is Andy.否定句: 一般疑问句: 9.We are twins.否定句: 一般疑问句: 10.He is my brother.否定句: 一般疑问句: 11.I am a teacher.否定句: 一般疑问句: 12.She is my mother.否定句: 一般疑问句: 13.This is Miss Zhao.否定句: 一般疑问句: 14.She is a new student.否定句: 一般疑问句: