Question

as引导的定语从句as只能指代整句话是吧？？？

Answer 1

你好！很高兴为您解答。
根据您的描述，答案是：否。
您谈及的指代整句话符合以下第二种情况。
由as引导的定语从句有以下几种情况：
1)
as作关系代词和关系副词引导限定性定语从句，并在句中做主语、表语和状语，构成the
same……as,
such……as等结构。
[例]I
want
to
have
such
a
dictionary
as
he
has.
(as
做宾语，指代：
a
dictionary)
I
should
do
it
in
the
same
way
as
you
did.
(as
做状语，指代
：in
the
same
way)
2)
as引导非限定性定语从句。as
在定语从句中做主语、表语或宾语，该定语从句指代整个句子，可放于主句之前。
[例]The
experiment
is
very
important,
as
indeed
it
is.(as代表整个句子，作表语
)
As
is
known
to
all,
he
is
the
best
studentin
our
class.(as代表整个句子，作主语)
As
we
all
know,
he
studies
very
hard.
(as代表整个句子，作宾语)
常用类似插入语有的句式有：
as
is
said
above,
as
already
mentionedabove
,as
is
known
to
all
,
as
it
is
,
as
is
often
the
case
,
as
is
reported
inthe
newspaper等。
注：
1)
关系代词在从句中做主语时，从句的谓语动词的人才和数必须和先行词保持一致；
2)
关系代词whom,
which,
that在限定性定语从句中做动词宾语或者介词宾语，而该介词又位于从句末尾时，经常省略，但as一般不省略；
关系代词which和as在定语从句中的区别是：which不能放在句首,as可以；在句中，as有“正如……”“就像……”之意，which无此意。
----以上资料来自个人笔记摘抄，仅供参考。