什么是动词 'Be'?

动词 'be' 会根据时态和主语的不同而变化。

'Be' 的不同形式

在现在时中,'be' 根据主语的不同有三种形式:

一般现在时

I

am (我 是)

you

are (你 是)

he/she/it

is (他/她/它 是)

we

are (我们 是)

you

are (你们 是)

they

are (他们 是)

以下是一些例句:

示例

I am happy.

我很开心。

She is reading a book.

她正在读书。

We are friends.

我们朋友。

在过去时中,'be' 根据主语的不同有两种形式:

一般过去时

I

was (我 是)

you

were (你 是)

he/she/it

was (他/她/它 是)

we

were (我们 是)

you

were (你们 是)

they

were (他们 是)

以下是一些例句:

示例

He was a teacher.

他曾老师。

They were angry at me.

他们对我生气了。

'Be' 的疑问句

要用 'be' 动词构成疑问句,只需将主语和动词的位置互换。例如:

示例

He is an actor. → Is he an actor?

他是演员。→ 他是演员吗?

They are angry. → Are they angry?

他们生气了。→ 他们生气了吗?

We were home last night → Were you home last night?

我们昨晚在家。→ 你们昨晚在家吗?

否定句

要用 'be' 动词构成否定句,只需在动词后加上 'not'。

示例

I am studying → I am not studying.

我在学习。→ 我有在学习。

She is busy. → She is not busy./She isn't busy.

她很忙。→ 她那么忙。

He was happy to see us. → He was not happy to see us./He wasn’t happy to see us.

他很高兴见到我们。→ 他那么高兴见到我们。

You were a student. → You were not a student./You weren’t a student.

你曾是学生。→ 你曾经是学生。

Quiz:


1.

Which sentence uses the verb "be" in the past tense correctly?

A

I am going to the store.

B

She were happy yesterday.

C

They were excited about the news.

D

He is working late tonight.

2.

Which sentence correctly uses the negative form of the verb "be"?

A

She isn't tired.

B

She not is tired.

C

She tired isn't.

D

She is no tired.

3.

Sort the words to make a question using" be".

you
last
?
night
home
were
4.

Match each part of the sentences with their correct ending.

I
They
He
Are
Is
were angry.
is an engineer.
am happy.
you tired?
she home?
5.

Fill the blanks to complete the story using different forms of "be" in the present and past tense.

Last weekend, I

at the park with my friends. We

having a great time, but suddenly, it started raining. I

feeling well, so I asked my friends, "

you okay?" They replied, "Yes, we

fine, but we should go inside." Later, I

at home, resting and drinking tea.

was
are
were
am

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