if和whether引导的条件状语从句百度

Question

如题所述

Answer 1

1."whether...or"作为连词，后面加动词不定式，意为“是...还是..."
i
don't
konw
whether
to
go
or
come。我不知道是去还是来？
2."whether...or
not"还可引导让步状语从句，表示"不管是否......"既可放在句首，也可放在句尾。
whether
you
like
it
or
not,you'll
have
to
pay.不管你是否喜欢，你都要付款。
you'll
have
to
pay，whether
you
like
it
or
not。你必须得付款，不管你是否喜欢。
3.注意区分“whether
or
not”和"whether...or
not"。
“whether
or
not”意为“无论如何;无论"；”whether...or
not"则是“是否”的意思。
whether
or
not
he
will
never
be
able
to
forgive
me.无论如何他都不能原谅我．
i
don't
care
whether
he
will
come
or
not.我不在乎他是否能来．

Answer 2

whether与if在句中的用法1、引导宾语从句
在引导宾语从句时,whether
和if
通可以互换,在ask,care,doub,know,learn,msee,tell,try,wonder等动词之后尤其如此.例如：
I
don’t
know
if/whether
I
can
help
you.
They
don’t
care
a
bit
whether
my
reports
are
good
or
bad..
I
wonder
if
you
can
examine
him
now.(高一册第十四页)
I
am
not
sure
if/whether
I’ll
have
time.