被动语态怎么讲
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发布时间:2022-04-29 13:29
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时间:2022-06-28 20:47
一、
被动语态的用法:
1.
一般现在时的被动语态构成:is
/
am
/
are
+
及物动词的过去分词
Our
classroom
is
cleaned
everyday.
I
am
asked
to
study
hard.
Knives
are
used
for
cutting
things.
2.
一般过去时的被动语态构成:was
/
were
+
及物动词的过去分词
A
new
shop
was
built
last
year.
Dinosaur
eggs
were
laid
long
long
ago.
3.
现在完成时的被动语态构成:has
/
have
+
been
+
及物动词的过去分词
This
book
has
been
translated
into
many
languages.
Many
man-made
satellites
have
been
sent
up
into
space
by
many
countries.
4.
一般将来时的被动语态构成:will+
be
+
及物动词的过去分词
A
new
hospital
will
be
built
in
our
city.
Many
more
trees
will
be
planted
next
year.
5.
含有情态动词的被动语态构成:情态动词+
be
+
及物动词的过去分词
Young
trees
must
be
watered
often.
Your
mistakes
should
be
corrected
right
now.
The
door
may
be
locked
inside.
Your
homework
can
be
handed
in
tomorrow.
6.
现在进行时的被动语态构成:am
/
is
/
are
+
being
+
及物动词的过去分词
Uncle
Wang
is
mending
my
bike
now.→
My
bike
is
being
repaired
by
Tom
now.
They
are
planting
trees
over
there.
→
Trees
are
being
planted
over
there
by
them.
7.
不定式的被动语态:to
+
be
+
及物动词的过去分词
There
are
two
books
to
be
read.
→
There
are
twenty
more
trees
to
be
planted.
二、
怎样把主动语态改成被动语态?
把主动语态改为被动语态非常简单,可以遵循以下几个步骤:
1.
先找出谓语动词;
2.
再找出谓语动词后的宾语;
3.
把宾语用作被动语态中的主语;
4.
注意人称、时态和数的变化。
例:1.
Bruce
writes
a
letter
every
week.
→A
letter
is
written
by
Bruce
every
week.
2.
Li
Lei
mended
the
broken
bike
this
morning.→The
broken
bike
was
mended
by
Li
Lei
this
morning.
3.
He
has
written
two
novels
so
far.→Two
novels
have
been
written
by
him
so
far.
4.
They
will
plant
ten
trees
tomorrow.→Ten
trees
will
be
planted
by
them
tomorrow.
5.
Lucy
is
writing
a
letter
now.→A
letter
is
being
written
by
Lucy
now.
6.
You
must
lock
the
door
when
you
leave.→the
door
must
be
locked
when
you
leave.