Question

Be动词例句

Answer 1

“Be”除了原形的“be”之外，还有另外七种形式：am,
is,
are,
been,
being,
was,
were
【当主动词时，“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：
1.
The
man
is
a
science
teacher.
这个男子是一位科学教师
2.
Mary's
new
dresses
are
colourful.
玛丽的新衣服色彩鲜艳
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：
5.
Is
the
man
a
science
teacher?
6.
Are
Mary's
new
dresses
colourful?
【当“be”要在祈使句中出现时，它必须借重助动词“do”或“don't”之助，如：
9.
Don't
be
silly!
10.
Do
be
obedient!
11.
Don't
be
a
fool!
【“Be”有两种缩写法，如下：
12.
He's
not...../He
isn't....
13.
You're
not...../You
aren't...
【但“am
+
not”的缩写法只有一个：
14.
I'm
not.
【be”作助动词时】
【1.】“Be
+
现在分词”以组成进行式时态(Continuous
Tenses)，如：
15.
Tony's
maid
is
washing
his
new
car.
16.
The
children
are
playing
in
the
field.
【2.】“Be
+
过去分词”以组成被动语态(The
Passive
Voice),如：
19.
Her
money
in
the
drawer
was
stolen.
20.
A
number
of
good
jobs
are
taken
up
byforeigners.

Answer 2

答疑解惑（123）什么是系动词和 be动词？