不定式特殊句型so as to ，这是什么句子怎么用啊？

Question

如题所述

Answer 1

这是不定式作结果状语，表示以便于，意思相当于so
that+从句，区别是so
as
to+动词短语，
so
that+从句。
如他们每天早起以便保持身体健康：
He
gets
up
early
every
day
to
keep
healthy.
或He
gets
up
early
every
day
so
that
he
can
keep
healthy.

Answer 2

so
as
to
do构成不定式，表示目的，其位置一般在句中，否定结构用so
as
not
to
do。
Eg：
He
ran
quickly
so
as
to
catch
the
last
bus.
他跑得很快以便赶上那末班车。
so
+形容词或副词+
as
to
do，表示结果，相当于“形容词或副词+enough
to
do"。EG：He
is
so
kind
as
to
help
me
with
my
English.

Answer 3

表目的，例，We
work
hard
so
as
to
finish
the
job
on
time.
为准时完成工作，我们努力工作。　注意不将so
as
to
用于句首。

Answer 4

so
as
to
相当于in
order
to，是“为了，目的是”的意思。但so
as
to只能永远句中，后面接动词原形