定语从句reason 为先行词关系代词怎样用

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#热议# 在购买新能源车时，要注意哪些？

让默才萦心
2020-05-31 · TA获得超过3772个赞

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定语从句reason
为先行词
关系词怎样用
一般需根据该先行词在定从中的作用来定
：(1)在reason作先行词的定语从句中，若从句表原因，一般用why引导定语从句，why可以用for
which替换。（也可以用that代替why，这种用法的that还可省去。）
如The
reason
why
(for
which)
he
has
resigned
is
poor
health.他辞职的理由是健康状况不佳。
(2)当reason用作定语从句的宾语时，引导词用that/which,而且that/which可省去。
The
reason
(that/which)
he
gave
for
being
late
was
that
they
were
held
up
in
a
traffic
jam.
他给出的迟到原因是由于他们被交通阻塞给耽误了。
(3)注意句型This/That's
why…
This/That's
the
reason
why…
That's
why
he
did
it.(这是表语从句，不用that代替why)这就是他为什么做这事的原因。
That's
the
reason
why
he
did
it.(可用that代替why，这时that是关系副词)