be動詞的用法總結(jié)及練習(xí)題
學(xué)習(xí)英語的時候，很多人都是比較苦惱語法的學(xué)習(xí)，就如be動詞的用法就很多，下面是學(xué)習(xí)啦小編整理的一些關(guān)于be動詞的用法總結(jié)， 希望讓大家更好地認識be動詞，提高英語水平。
be動詞的用法篇一
1. Be動詞有三個，am,is還有are.我用am, 你用are, is跟著他她它，復(fù)數(shù)全部都用are.
如果遇到過去時，was來把am,is替，were來把換掉動詞are
2. do和be動詞的用法區(qū)別
Be 動詞就是(am，are,is)..句子中如果沒有實意動詞(例如:write，buy)之類的動詞，就直接在主語后面加Be動詞。而如果是句子中有實意動詞，那么如果你要改為一般疑問句，就要借助DO(do也稱為助動詞)，例如:I study.
改為一般疑問句:Do you study ?
順口溜：be氏三朵花, am, is還有are,
我(I)戀am, 你(you)戀are,
is跟了他(he)她(she)它(it),
單娶is, 復(fù)娶are。
be動詞的用法篇二
英語的be 動詞是個用法比較復(fù)雜的動詞。復(fù)雜的原因有兩點：
1、 除了原形的 be 之外，對于不同人稱代詞以及單數(shù)名詞和復(fù)數(shù)名詞，be 會有各種變化形式和縮寫形式。概括一下有七種形式：be, am, is, are, was, were, been, being。它們與人稱代詞和名詞單、復(fù)數(shù)的搭配關(guān)系是：
現(xiàn)在時 I am, you are, he/she/it/ is, we/you/they are;名詞單數(shù)、不可數(shù)名詞用is，復(fù)數(shù)用are。
縮略式 I'm, you're, he's, we're, you're, they're
否定縮略式 I'm not, isn't, aren't
過去時 I was, you were, he/she/it/ was, we/you/they were;名詞單數(shù)、不可數(shù)名詞用was，復(fù)數(shù)用were。
否定縮略式 wasn't, weren't
過去分詞 been
現(xiàn)在分詞 being
2、在句子中，be有兩種主要作用：一是作為系動詞(The Linking Verb)，本身可以作用謂語動詞;二是做為助動詞(The Auxiliary Verb)，與謂語動詞一起構(gòu)成各種時態(tài)和被動語態(tài)等。
下面做個簡要的講解。
be動詞的用法：做系動詞
1、系動詞+表語”的結(jié)構(gòu)
當(dāng)be 動詞做系動詞使用時，主要構(gòu)成“系動詞+表語”的結(jié)構(gòu)，在句子中做謂語。表語可以是名詞、形容詞、副詞、介詞短語等。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 動詞的一般疑問句，方法是把be 移到主語前面，也可說成是移到句首。
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 動詞用在特殊疑問句
在特殊疑問句里，be 動詞仍然移到主語前面，但特殊疑問句是以特殊疑問詞開頭的，所以be 動詞只能說是移到主語前面，或者說是在特殊疑問詞的后面。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 動詞的否定句
be 動詞做謂語時，它的否定形式是在be 后加not，并且可以縮寫。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 動詞的祈使句
be 動詞的祈使句有肯定和否定兩種形式。肯定形式是以be 動詞開頭，而否定形式或強調(diào)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.