文档介绍：be动词的用法
am is are
be动词的形式
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be动词的种类
(I)配合am来用。
句型解析：I am+…
I am Sam.
I am ten years old.
I am young.
I am a boy.
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be动词的种类
(You)配合are使用。
句型解析：You are+…
You are my good friend.
You are strong.
You are hard-working.
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be动词的种类
(He or She or It)配合is使用。
句型解析：She/He/It is +…
She is a good girl.
She is shy.
She is my mother.
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be动词的种类
(we /you/they)配合are使用。
句型解析：We /You/They are +…
We are students .
They are friends.
You are clever.
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Let’s read  
 我（I）是am ，你（you）是are;
is用于他（he）,她（she），它（it）;
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动动脑
1. I          a girl.
am   B. is  C. are
2. He          a boy.
A. am   B. is  C. are
3. We           boys.
A. am   B. is  C. are
4. My father           a doctor.
A. am   B. is  C. are
5. Tom and Jack            boys.
A． am  B. is  C. are
6. It             a desk.
A. tm    B. is  C. are
A
B
C
B
C
B
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人称代词与be动词的缩写
I am= You are=
He is= She is=
We are= It is=
They are=
She’s
I’m
It’s
They’re
We’re
You’re
He’s