be动词复杂用法2018最新篇）
编辑： admin 2017-12-07
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be [bi:](be/is/are/am/was/were)
现在时
I am, you are, he is, we are, you are, they are 过去时 I was, you were, he was, we
were, you were, they were (过去时否定缩略式 wasn't, weren't),过去分词been,现在分词being
英语的“be”是个特殊动词;有些语言,如马来文等,并没有“be”这样的动词。
“Be”除了原形的“be”之外,还有另外七种形式:am,
is, are, been, being, was, were.
在句子中,“be”可以是主动词(The
Principal Verb)或助动词(The Auxiliary Verb)
#FormatImgID_0#
#FormatImgID_1#【当做助动词时,“be”在性质上属于接系动词(The
Linking Verb), 后面要有名词、形容词、地方副词或短语作补足语(The
Complement)。】例如:
The
man is a science teacher.
这个男子是一位科学教师。
Mary's
new dresses are colourful.
玛丽的新衣服色彩鲜艳。
I
have been there before.
我以前去过那里。
My
mother is in the kitchen now.
母亲现在在厨房。
【这四个都是陈述句,可以变成疑问句,方法简单,把主语和“be”或助动词对换位置即可:
Is
the man a science teacher?
Are
Mary's new dresses colourful?
Have
I been there before?
Is
mother in the kitchen now?
【当“be”要在祈使句中出现时,它必须借助
助动词“do”或“don't”之助,如:
Don't
be silly!
Do
be obedient!
Don't
be a fool!
【“Be”有两种缩写法,如下:
He's
not...../He isn't....
You're
not...../You aren't...
【但“am
+ not”的缩写法只有一个:
I'm
not.
有人用“ain't”,
但这并不是标准英语。
谈过了“be”作主动词的功能,现在看看“be”作助动词时,有些什么用法:
【1.】“Be
+ 现在分词”以组成进行式时态(Continuous
Tenses),如:
Tony's
maid is washing his new car.
The
children are playing in the field.
Samuel
was eating when I came in.
【2.】“事/物人
+Be + 过去分词”以组成被动语态(The
Passive Voice),如:
Her
money in the drawer was stolen.
A
number of good jobs are taken up by foreigners.
David
studied in Taiwan but has been trained as a language lecturer in
America.
be动词有时在句中的成分是助动词,句中动词用现在分词,例如:
I
am reading a book now.
我正在读书。
He
is watching TV now.
他正在看电视。
原作者：www.yangjiajiao.com