Question

现在完成时，主动语态,被动语态的区别?各多举几个例句谢谢。

Answer 1

被动语态八注意1．我们知道，主动语态变为被动语态时，通常将主动语态中的宾语变为被动语态的主语；主动语态的主语变为由介词by引导的宾语；谓语动词变为被动语态“be
+过去分词”形式，例如：everyone
likes
the
interesting
film.
(主动语态)
→
the
interesting
film
is
liked
by
everyone.
(被动语态)they
used
knives
to
cut
things.
(主动语态)
→
knives
are
used
to
cut
things.
(被动语态)但是，并非所有由“be
+过去分词”构成的形式就是被动语态。有时过去分词已经变为形容词，表示一种状态。试比较：my
brother
is
very
interested
in
english.
我哥哥对英语非常感兴趣。（状态）my
brother
was
interested
by
what
i
told
him.
我告诉他的话让我哥哥非常感兴趣。（动态）2．在被动语态中谓语动词一定是及物动词，也就是说必须跟宾语的动词。如：we
can
make
metals
into
different
shapes.
(主动语态)
→
metals
can
be
made
into
different
shapes.
(被动语态)在主动语态中make是及物动词，其动作的承受者即宾语是metals。但是，并非所有的及物动词都有被动语态。比如，表示静态的动词（have、belong
to）、宾语是反身代词或相互代词等。例如：he
has
a
nice
house.
他有一所漂亮的房子。we
must
help
each
other.
我们应该互相帮助。3．主动语态中的主语在变为被动语态时通常变为由介词by的引出的宾语。如：they
have
already
cut
down
the
trees.
→
the
trees
have
already
been
cut
down
by
them.
那些树木已经被他们砍光。如果谓语动词是know，在变为被动语态时，原来的主语变为由to引出的宾语。如：may
people
know
him
very
well.
→
he
is
well
known
to
many
people.
很多人都非常了解他。注意：我们之所以用被动语态是因为我们不清楚动作的执行者、或没有必要指出动词的执行者等。因此很多被动语态没有由by引出的宾语。如：people
may
lose
their
lives
and
homes
or
they
may
be
injured
badly
in
a
fire.
在大火中人们可能失去性命和家园，要不就是严重烧伤。it
is
used
for
protecting
the
fireman
from
smoke.
它用来保护消防人员以避免吸进烟雾。

Answer 2

现在完成时：HAVE
BEEN
DONE
例子：I've
been
to
New
York
three
times
so
far
主动是某人做某事什么什么的
例子：I
am
wring
a
book
被动：been
done
例子：The
car
was
washed
by
Jake.
大概这样具体你可以上百科去看看。有特别具体的