be动词和人称代词.ppt

am is are
be动词的用法
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be动词的种类
be动词包括“am”, “is”, “are”三种形式,表达“是”的意思。
第一人称单数(I)配合am来用。
句型解析析:I am+…
I am Snoopy.
I am ten years old.
I am a student.
I am a boy.
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be动词的种类
第二人称(You)配合are使用。
句型解析:You are+…
You are my good friend.
You are a good person.
You are beautiful.
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be动词的种类
第三人称单数(He 或 She 或 It)配合is使用。
句型解析:She/He/It is +…
She is a good girl.
He is my brother.
It is so cute.
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be动词的种类
复数人称(we /you/they)配合are使用。
句型解析:We /You/They are +…
We are in Class5,Grade 7.
You are students.
They are good students.
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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. This             a desk.
A. am    B. is  C. are
A
B
C
B
C
B
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7. They             late.
A. am    B. is  C. are
8. You            clever.
 A. am  B. is  C. are
9. The cloud             white.
A. am  B. is  C. are
10. I              a student.  You          a teacher.
A . am  is  B. am  are   C. is   are
11. We          friends.
 A. am  B. is  C. are
12. He            my father.  She            my mother . They             both doctors .
  A. is is are   B. am is are   C. is is am
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be动词的疑问句
He is a teacher.
be动词提句首
Is he a teacher?
They are twins.
be动词提句首
Are they twins?
I am a good student.
练一练
Am I a good student?
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be动词的否定句
is a teacher.
He is not a teacher.
are twins.
变否定,be动词后加not
They are not twins.
I am a good student.
练一练
I am not a good student.
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Be的用法口诀 
 我(I)用am ,你(you)用are;
is连着他(he),她(she),它(it);  单数用is,复数要用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。