老师谢谢您帮我讲解一下虚拟语气越详细越好举的例句越多越好

Question

如题所述

Answer 1

虚拟语气是动词的一种特殊形式,用来表达说话人的意愿.请求,设想,等未能或不可能实现的事实,或说话人看来实现可能性很小的情况.做这类题时首先要弄清楚虚拟语气的各种句型,即由if引导的虚拟条件句,省略if的倒装形式,可跟虚拟语气的宾语从句,同位语从句,表语从句的句型,以及表示祝愿或感叹的句子和由without,
but
for等介词引导的短语或句子.
(1)虚拟语气现在时.
用以表示与现在事实相反的假设或现在实现可能性不大的情况.
条件从句：动词过去式(be用were)
主
句：Would/should/could/might
+
动词原形
Eg.
If
I
were
a
bird,
I
would
fly
to
you.
If
it
were
not
for
their
help,
we
should
be
in
a
very
difficult
position.
(2)
虚拟语气过去式.
表示与过去事实完全相反的假设.
条件从句：had
+
过去分词
主
句：would/should/could/might
+
have
+过去分词
Eg.
If
we
had
started
earlier,
we
should
not
have
missed
the
train.
If
she
hadn’t
been
ill,
she
might
have
come.
(3)虚拟语气将来式.
表与将来情形相反的假设或极少有可能实现的情况.
条件从句：动词过去式或should
+动词原形或were
to
+动词原形
主
句：would/should/could/might
+动词原形
Eg.
If
Professor
Li
should
have
time
tomorrow,
we
could
ask
him
some
questions.
If
there
should
be
no
air,
there
would
be
no
living
things.