第1个回答 2019-11-06
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.