【经典】英语语法：Be_动词的用法及练习题
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一. 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, （缩写：I am → I'm）. eg：I am a student.
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。
（缩写：We are= We're，They are =They're, You are = You're，are not=aren’t）
eg. Are you twelve?
Tom and Lily are good friends.
They are at school.
These are books.
We are students.
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.
(缩写：He is=He's, My mother is=My mother's, is not=isn’t
This is不能缩写)
eg.My mother is a teacher.
He is a student.
She is my friend.
It is a dog.
This is a bike.
That is a cup.
二. be动词用法歌
be动词真伟大，生出is, am, are。
我（I）用am，你（you）用are，
is连接他(he)，她(she)，它(it)。
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。
练习一. 用动词be （am， are， is）填空
?I _____ a student.
?Lucy and Lily ____ from USA.
?---Who ___ they?
?--- They ____ Jim, Mike and John.
?The white shirts _____ on the chair.
?Their bikes ____ under a big tree.
?His father ___ at home.
?How old _____ you?
?______ there any birds in the tree?
三. 做题技巧：
1.若陈述句，填be动词看横线前面主语。
2.若疑问句，填be动词看横线后面主语。
一. 选择填空
1.-What class ___ you in? - I_____ in Class One.
A. are; are
B. are; am
C. are; is
2. They ____ new students. We ____ not new.
A are ; are
B are; am C. are ; is
3. -Where ____ his pencils? --- Oh, in his bag.
A. is
B. are
C. am
4. Miss Gao _____ our teacher. She ____ tall.
A. are; are
B. are; is
C. is; is
5. Their classroom ______ over there.
A. are
B. is
C. am
6. I think Ann and Betty _____ in the classroom.
A. is
B. am
C. are
7. She ______ Miss Hen.
A. be
B. am
C. is
8. I ______ sorry. A./ B. am C. are
9. Here ______ my ball. A. is B. are C. am
10. You ______ number eight. A. are B. is C. am
11. What _______this？ A. is B. are C. be
12. Helen____ a student. A. be B. am C. is
13. Those _____oranges. A. is B. are C. am
14. How old _____your teacher? A. be B. am C. is
15. Where _____ her mother? A. are B. is C. am
16. The two cups of milk _____ for me. A. is B. are C. be
17. Eric and Kathy ____ my students. A. are B. is C. am
18. Your books ____ not good. A. is B. are C. be
19. He ___ a boy. A. be B. am C. is
20. It ___ my dog. A. is B. are C. be
21. Whose socks ______ they? A. are B. is C. am
22. _______ there any chairs in the classroom. A.Is B. Are C. Am
23. The man with big eyes _______ a teacher. A. be B. am C. is
24. How _______ your father? A. is B. are C. be
25. Mike and Liu Tao ______ at school. A. are B. is C. am
26. I _____ a student. A. be B. am C. is
27. They ______ teachers. A. is B. are C. be
28. This _____ my mother. A. are B. is C. am
29. - _____ you a student? -Yes, I am. A. Am B.Is C. Are
30. The jam _____ good for my grandma. A. is B. are C. be
二. 请用is, am, are完成下列句子。
1. I ____ a good student.
2. You ____not a teacher.
3. _____ he a doctor?
4. Tom and Lin Tao _____ good friends.