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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:
1.am 和is在一般过去时中变为was。(was not = wasn’t) 2.are在一般过去时中变为were。(were not = weren’t)
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,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I'm。如: I'm 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: We are= We're, They are =They're, You are = You're。而are与 not可缩写成aren't。 如:They aren't 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 = He's, My mother is = My mother's等。但是This is不可缩写。而is与not可缩写成 isn't。 如:This isn't 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 :
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 _________ Li Dong.I _________ twelve. 9._________ they your new friends? 10. I ______ a boy. ______ you a boy? No, I _____ not. 11. The girl______ Jack's 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 the glass. 19.Gao shan's shirt _______ over there. 20. My sister's name ______Nancy. 21. This ______ not Wang Fang's 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. 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.Jack’s 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 ball. 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 chairs 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(缩略形式) ______5.is not (缩略形式) ______ 6.can not(缩略形式) ______ 7.she's(完整形式) ______ 8.it's(完整形式) ______ 9.they're(完整形式) ______ 10.don't(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.I’m 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:
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