wonder后面是否能跟if和whether

whether和if都可以引导宾语从句，表示“是否”，在口语或间接引语中两者可以互换使用。如：

i

wonder

if

/

whether

i

can

get

some

advice

from

you.

ask

him

whether

/

if

he

can

come.

但在有些情况下，whether和if的用法有一定区别。

1.

whether引导的从句常可以与连词or或or

not直接连用，而if一般不能。如：

正：

let

me

know

whether

you

can

come

or

not.

误：

let

me

know

if

you

can

come

or

not.

2.

当宾语从句提到句首时，只能用whether引导，而不能用if。如：

正：

whether

it

is

true

or

not,

i

can’t

tell.

误：

if

it

is

true

or

not,

i

can’t

tell.

3.

whether可以引导带to的不定式，if则不能。如：

正：

i

don’t

know

whether

to

accept

or

refuse.

误：

i

don’t

know

if

to

accept

or

refuse.

4.

whether及其引导的成分可放于介词之后，作介词的宾语，但if不能。如：

正：

i

worry

about

whether

i

hurt

her

feelings.

误：

i

worry

about

if

i

hurt

her

feelings.

5.

whether可以引导从句，作主语、表语或同位语，而if不能。如：

正：

it

was

uncertain

whether

he

would

come.

误：

it

was

uncertain

if

he

would

come.

正：

his

first

question

was

whether

tom

had

arrived

yet.

误：

his

first

question

was

if

tom

had

arrived

yet.

正：

we

must

consider

the

question

whether

we

will

take

these

measures.

误：

we

must

consider

the

question

if

we

will

take

these

measures.

不知道我记得是否正确。wonder后如果表示的意思为是否时，就用whether， I wonder whether you will come today.；若用if就应该是如果了。具体的判断你可以结合if后面的句子表达的意思来判断，而不要套用一些不一定正确的用法。

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