最简单英语虚拟语气

虚拟语气的基本作用是：
1.
表达假设的情况，与事实相反；
2.
表达异想天开很难实现的愿望；
3.
表达建议、命令、劝告等语气。
第一种
If
条件句中的虚拟语气
If
wishes
were
horses,
beggars
would
ride.
If
places
were
alike,
there
would
be
little
need
for
geographers.
If
I
had
taken
your
advice,
I
wouldn’t
have
made
such
a
stupid
mistake.
if虚拟条件句的倒装
Had
I
been（=
If
I
had
been
）
in
that
situation，
I
would
not
have
let
the
thief
escape
away
with
so
much
money.if
条件句中的错综时间复杂句If
we
had
consulted
him
on
the
question
yesterday,
we
should
know
what
to
do
now.If
的固定结构中
if
it
were
not
for
/
if
it
had
not
been
for(but
for)…if
it
were
not
for表示与现在事实相反，if
it
had
not
been
for表示与过去事实相反。意为“要不是…”。如果if被省去则引起倒装。如：*
Were
it
notit
were
not>
for
the
sun,
there
would
be
no
plant
on
our
planet.