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。

二、有be动词的肯定句和否定句
I am from London. I am not from London.
He is a teacher. He is not a teacher.
She is not in the dining room.
My hair is not long.
Her eyes are not small.
三、Be 动词引导的一般疑问句通常只有两种回答--Yes.../No...
第一：如果句子中的be动词是is或are时，把be动词提到句首。

例句：
陈述句:This is a red book.
一般疑问句---Is this a red book?
肯定回答---Yes, it is ./
否定回答---No, it isn’t.
第二：如果句子中的be动词是am，则变成are,I应该变成you.
如：
陈述句：I am a student.
一般疑问句---Are you a student?
肯定回答---Yes, I am ./
否定回答---No, I am not.
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.
6.I ______ an English teacher now.
7.Where _________ you from?
10.The light _________ green.
11.My name _________ Li Dong.I _________ twelve.
12._________ they your new friends?
13. I ______ a boy. ______ you a boy? No, I _____ not.
14. The girl______ Jack's sister.
15. The dog _______ tall and fat.
16. ______ your brother in the classroom?
17. Where _____ your mother? She ______ at home.
18. Whose dress ______ this?
19.That ______ my red skirt.
20.Who ______ I?
21. Some tea ______ in the glass.
22.Gao shan's shirt _______ over there.
23. My sister's name ______Nancy.
24. This ______ not Wang Fang's pencil.
25. ______ David and Helen from England?
26. We ____ friends.
27. She ___ a teacher.
28. I ___ a girl.
29. Many ants ____ in my house.
30.His mother ____ fat.
31.He _____ in Class 4, Grade 1.
32.What _____ your name?
33. These _____ buses.
34. What class _____ you in?
35.It_____ a car.
36.Helen____ a student
37.This _____my book.
38.My father______a cook.
39.Jack’s friend____in Class One.
40.You ____ a doctor.
41. They ____ cars.
42.That______her dog.
43.The cat_______on the desk.
44.The books_______under the table.
二.选择
1.She ______ Miss Hen.
A.be
B.am
C.is
2.I ______ sorry.
A./
B.am
C.are
3.Here ______ my ball.
A.is
B.are
C.am
4.You ______ number eight.
A.are
B.is
C.am
5.What_______this？
A.is
B.are
C.be
6.Helen____ a student.
A.be
B.am
C.is
7.Those _____oranges.
A.is
B.are
C.am
8. How old _____your teacher?
A.be
B.am
C.is
9. Where __ ___ her mother?
A.are
B.is
C.am
10.The two cups of milk _____ for me.
A.is
B.are
C.be
11. Eric and Kathy ____ my students.
A.are
B.is
C.am
12. Your books ____ not good.
A.is
B.are
C.be
13. He ___ a boy.
A.be
B.am
C.is
14. It ___ my dog.
A.is
B.are
C.be
15.Whose socks ______ they?
A.are
B.is
C.am
16. _______ there any chairs in the classroom.
A.Is
B.Are
C.Am
17 .The man with big eyes _______ a teacher.
A.be
B.am
C.is
18.How _______ your father?
A.is
B.are
C.be
19.Mike and Liu Tao ______ at school.
A.are
B.is
C.am
20.I _____ a student.
A.be
B.am
C.is
21. They ______ teachers.
A.is
B.are
C.be
22.This_____my mother.
A.are
B.is
C.am
23._____ you a student? Yes,I am.
A.am
B.is
C.are
24.The jam _____ good for my grandma.
A.is
B.are
C.be
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) ______
四. 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.This is a pen .
否定句:
一般疑问句:
7.We are twins.
否定句:
一般疑问句:
8.He is my brother.否定句:
一般疑问句:
9.I am a teacher.
否定句:
一般疑问句:
10.She is my mother.否定句:
一般疑问句:。