不能小觑的be动词

发表于:2013-04-23 11:20 [只看楼主] [划词开启]

1.     Be动词的形式:

be
 现在
 过去
 
单数
 is/am
 was
 
复数
 are
 were
 
分词
 being
 been
 

 

2. Be动词的简写形式和否定形式:

简写形式:
 be动词的否定形式:
 be动词否定形式的简写:
 
I am => I’m
 I am not…
 I am… => I’m not…
 
You are => You’re
 You are not…
 You are not… => You're not… => you aren't… 
 
She is => She’s
 She is not…
 She is not… => She's not… => she isn't…
 

注:如果be动词前有别的助动词的时候,要在be动词前面进行否定。换句话说当be动词是be, to be, being, been的形式时,否定都是在前面加not。

例如:It will not be that easy.

It couldn’t be better.

3. Be动词的进阶:

(1) 时态:进行时

be doing => am is are / was were doing

例句:She is writing a letter now.

I was sleeping at that time.

(2) 语态

be done (可以和各种时态结合)

例句:I am badly paid.

He was killed in an accident.

He is appointed as the manager of this department.

(3) 词缀be-

形容词:beloved adj. 敬爱的,受到爱戴的

belated a. 迟来的

benighted adj 愚昧无知的,落后的

动词:belittle vt. 轻视,使渺小

bemoan vt. 惋惜;为…叹息

4. 涉及的句型:

(1) 祈使句:

肯定:Be quiet, please.

Be carefull.

否定:Don’t be nervous.

Don’t be late.

Don't be too serious.

(2) There be 结构:

There is a pen and two books on the desk.

There are two books and a pen on the desk.

5. 句子赏析

Be yourself.

I'll always be there for you.

Leave her be, she obviously doesn’t want to talk about it.

To be or not to be,that’s the question.

【总结】虽然be动词很短小,但却很强悍,在英语各大语法重点中都有它的身影,如时态,语态,虚拟语气,反义疑问句,强调句,定语从句,倒装等语法现象,所以大家要好好掌握它的用法。

 


昂立外语:400-820-8062
摘自昂立外语老师博客:http://blog.onlycollege.com.cn/
昂立青少年英语官网:http://www.onlycollege.com.cn/

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