be动词¶

be动词: am is are

be动词用法:

我用am,你用are,is跟着他,她,它.单数名词用is,复数名词全用are.
变一般疑问句,往前提,句末问号莫丢弃(疑问声调读).
变否定,更容易,be后not莫忘记.
翻译成"是"的时候要用be动词；句中没有动作时用be动词替代表状态。

简单句¶

I am an apple.
You are a pig.
He is a teacher.
She is a doctor.
It is a fish.
This apple is red.
These apples are red.

否定句/一般疑问句/缩写¶

He is a boy. / He's a boy.
He is not a boy. / He's not a boy. / He isn't a boy.
Is he a boy?
Yes,He is.(肯定回答中he is 不能缩写)
No,He is not. / No,He's not. / No,He isn't.

He is = He's
is not = isn't
He is not = He's not = He isn't

You are a spoon. / You're a spoon.
You are not a spoon. / You're not a spoon. / You aren't a spoon.
Are you a spoon?
Yes,I am.(肯定回答中I am 不能缩写)
No,I am not. / No, I'm not. / (am not 不能缩写为 amn't)

You are = You're
are not = aren't
You are not = You're not = You aren't

I am a flower. / I'm a flower.
I am not a flower. / I'm not a flower.
Are you a flower?
Yes, I am.(肯定回答中I am不能缩写)
No,I am not. / No, I'm not. / (am not 不能缩写为 amn't)

I am = I'm

注意：am not 不能缩写为 amn't

危险

针对一般疑问句的肯定回答中不能使用缩写！

备注

be动词不仅是当作"是"来使用，当一个句子中没有动作时，使用be动词(意译)表示状态(英语句子中必须有动词).

be动词表状态¶

He is at home.

You are sleepy.