什么是be动词谁能讲的通俗易懂点

1 Be动词有三个，am,is还有are我用am, 你用are, is跟着他她它，复数全部都用are

如果遇到过去时，was来把am,is替，were来把换掉动词are

2 do和be动词的用法区别

Be 动词就是(am，are,is)句子中如果没有实意动词(例如:write，buy)之类的动词，就直接在主语后面加Be动词。而如果是句子中有实意动词，那么如果你要改为一般疑问句，就要借助DO(do也称为助动词)，例如:I study

改为一般疑问句:Do you study

顺口溜：be氏三朵花, am, is还有are,

我(I)恋am, 你(you)恋are,

is跟了他(he)她(she)它(it),

单娶is, 复娶are。

详细讲解：

英语的be 动词是个用法比较复杂的动词。复杂的原因有两点：

1、 除了原形的 be 之外，对于不同人称代词以及单数名词和复数名词，be 会有各种变化形式和缩写形式。概括一下有七种形式：be, am, is, are, was, were, been, being。它们与人称代词和名词单、复数的搭配关系是：

现在时 I am, you are, he/she/it/ is, we/you/they are；名词单数、不可数名词用is，复数用are。

缩略式 I'm, you're, he's, we're, you're, they're

否定缩略式 I'm not, isn't, aren't

过去时 I was, you were, he/she/it/ was, we/you/they were；名词单数、不可数名词用was，复数用were。

否定缩略式 wasn't, weren't

过去分词 been

现在分词 being

2、在句子中，be有两种主要作用：一是作为系动词(The Linking Verb)，本身可以作用谓语动词；二是做为助动词(The Auxiliary Verb)，与谓语动词一起构成各种时态和被动语态等。

下面做个简要的讲解。

一、be 动词做系动词

1、系动词+表语”的结构

当be 动词做系动词使用时，主要构成“系动词+表语”的结构，在句子中做谓语。表语可以是名词、形容词、副词、介词短语等。例如：

The man is a science teacher

Mary's new dresses are colourful

Mother is in the kitchen now

I have been there before

They shall be here at 10:00 tommorow

That can't be true

You are not being very polite

Your brother is being very annoying this evening

2、be 动词的一般疑问句，方法是把be 移到主语前面，也可说成是移到句首。

Is the man a science teacher Yes, he is / No, he isn't

Are Mary's new dresses colourful Yes, they are / No, they aren't

Was mother in the kitchen then Yes, she was / No, she wasn't

Were you at home the day before yesterday Yes, I was / No, I wasn't

Was she late this morning Yes, she was / No, she wasn't

3、be 动词用在特殊疑问句

在特殊疑问句里，be 动词仍然移到主语前面，但特殊疑问句是以特殊疑问词开头的，所以be 动词只能说是移到主语前面，或者说是在特殊疑问词的后面。例如：

Whose bike is broken Xiao Ming's bike is

Who was singing in the room Mr Zhang was

Where are you from I am from Wuhu

What class were you in We were in Class 2

How old is Tom He is ten

4、be 动词的否定句

be 动词做谓语时，它的否定形式是在be 后加not，并且可以缩写。例如：

It is not sunny today

Tom and his friends are not in the park

You were not nine years old when I went to the university

He was not often late for his class when he was a student

I wasn't here yesterday

My parents weren't at home last Sunday

5、be 动词的祈使句

be 动词的祈使句有肯定和否定两种形式。肯定形式是以be 动词开头，而否定形式或强调句形，要加don't 或do。例如：

Be careful!

Be a good boy!

Don't be silly!

Don't be a fool!

Do be obedient!

Do be careful

二、be 动词做助动词

助动词be 有两个基本用法，一是与谓语动词一起构成各种时态，二是构成被动语态。

1、“be + 现在分词组”成各种进行式时态。例如：

Tony's maid is washing his new car

The children are playing in the field

Samuel was eating when I came in

We have been living here since 1959

This time next day they will be sitting in the cinema

三、注意事项

英语句子中，为了表达时态或被动语态的需要，常常会出现几个助动词连在一块儿使用。也就是说，助动词be会和其它助动词一起使用。这时候，整个句子的一般疑问句和否定句，就不一定是对be 进行变化了，而是以第一个助动词为主进行变化。即哪个助动词在先，就以它为主进行变化。例如：

[肯定句] All the wonderful birds can be found in our Bird Park (助动词有两个：can be )

[疑问句] Can all the wonderful birds be found in our Bird Park (移第一个can)

[否定句] All the wonderful birds can not be found in our Bird Park (在第一个can 后加not)

[肯定句] I have been there before (两个助动词：have, been )

[疑问句] Have you been there before

[否定句] I have not been there before

[肯定句] I shall be having my supper at six tomorrow evening (两个助动词：shall, be )

[疑问句] Will you be having my supper at six tomorrow evening

[否定句] I shall not be having my supper at six tomorrow evening

四助动词be，无词义，辅助主要动词一起在句中作谓语动词。用法如下：

1 be+doing：构成进行时态，有现在和过去两种进行时态。如：

The girls is reading and copying the new words now

Young Tom was always asking questions and trying out new ideas

2 be+going to do，表示"打算或将要做某事"，be有现在和过去两种形式。如：

We are going to plant trees in the park

I didn’t know if she was going to come here

3 be+to do，表示"按计划安排将要做某事"。如：

The new shop is not to be opened till next Monday One night an angel came to

Mary and told her that she was to have this special boy

五there be

there be句式为：there be+主语部分＋状语部分，表示"某处存在某物"，be常用现在时，过去时和将来时等。如：

Oh, cool! And there are many things to see There is even a deer park in Sanya

There are about 80 pyramids in Egypt

Will there be a football match in your school next week

六，实义be

可以将be视为实义动词，因为它具有实际的词义，如"成为;做;发生;举行;逗留;到达"等。如：His daughter wants to be a doctor for animals in her twentiesKates birthday party

will be at half past six this eveningJim has been in China for

morethan two years, but he has not yet been to Yichang

am ,is ,are were ,was这五个词均称be动词，前三个是用于一般现在时态,后两个用于一般过去时态。

be是一个连系动词，它有自己不同的形式

现在时:be 进行时:being 过去时:was/were 过去分词:been

它的后面必须跟形容词或名词作表语，与之构成系表结构，充当句子的谓语。

i am a student主语:i 谓语:am a student(系表结构)

being是它的现在进行时态，一般不单独用，而是用于现在进行时的被动语态。(being+动词过去分词)

the bike is being repaired单车正在被修理中。

it is being finished by him这正在被他完成中。

been是它的过去分词，也不一般单独使用，而是用于现在完成时、过去完成时以及需要它的句子。

i have been here for a long time我已经到这里有一段时间了。

至于你的问题，这与你想表达的意思有关。

你的工作是什么

what do you do what is your job

那么这里选用do和is有什么根据呢

第一句里面，第二个do是指你做什么，也就是你的工作，就是一个实义动词。按中文说，what you do已经足够了。可是英语里面就不行，必须跟一个助动词，也就是do

这里就有了一个结论:当句子中有动词时，我们就用助动词do或是does如果没有动词时，我们就选用is或是are，也就是be

在英语语法中，be动词意思和用法很多，一般的意思是：是，此种用法，有多种变化形式，is，am，are，was，were，being，been，to

be另外，be动词还有成为的意思。根据句子中不同的人称、数和时态，应该选择相应的be动词。望采纳！！！认真答得！！

、be动词首先可以理解为汉语中的是，后面要跟形容词或名词

句式为：be+形容词/名次

2、be动词也是构成进行时的助动词，表示现在进行的动作

句式为：be+动词的ing形式

3、be动词还是构成被动语态的重要结构

句式为：be+动词的过去分词

当然还有很多喽，我建议楼主从百度里搜，那样答案比较全一些，

希望楼主能得到自己希望的答案o~!

1、be动词，意思和用法很多，一般的意思是：是，此种用法，有多种变化形式，am, is, are，was，were，being，been。

2、另外，be动词还有成为的意思。根据句子中不同的人称、数和时间，型态，应该选择相应的be动词。

be动词，也叫系动词。它是起联系作用的，如英语常用句型中的主语+系动词+表语，就需要be动词它在将来时中可用原型：He

will

be

a

hero(他会成为一名英雄）在一般现在时中的形态有：am,

is,

aream的主语只有I:I

am

happyis的主语是第三人称单数:She

is

beautifulare的主语是第二人称以及第一、三人称复数:You

are

the

apple

in

my

eyesWe

are

good

friendsPeople

are

chatting

with

each

other在过去时中的形态有：was

were

beenwas常用于一般过去时中，其主语为I和第三人称单数:

I

was

there

at

that

timewere常用于一般过去时中，其主语为第二人称以及第一、三人称复数,也用于虚拟语气中：They

were

watching

TV

at

this

time

last

eveningI

wish

I

were

a

birdbeen用于现在完成时和过去完成时中：I

have

been

to

Janpan

several

times

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