做“对句子划线部分提问”试题时，一般应该遵循三个步骤：
1.
确定与句子划线部分相应的特殊疑问词，并且特殊疑问词代替相应的划线部分。
2.
把特殊疑问词代替划线部分后的句子变成一般疑问句。
3.
最后再把特殊疑问词提到句首。
以上三个基本步骤可以用三个字来概括，即：定，问，提。例如：
this
is
a
book
?
①this
is
what.
②is
this
what
?
③what
is
this
?
注意：句①②只是一种变化过程，不必写入试题中。句③才是试题所要求的形式和结果，必须写到试题上。以上三个步骤是对句子划线部分提问最基本的过程。然而对不同句子的不同成份提问时，还要注意以下几点：
1.
如果句子的划线部分是主语，只找出相应的特殊疑问词，用来代替划线部分即可。如：
1)he
teaches
us
english.
who
teaches
us
english？
2)my
mother’s
clothes
are
over
there.
whose
clothes
are
over
there？
2.
如果句子的划线部分是谓语(包括谓语动词)，不论原来的谓语动词是何种形式(时态、语态)，都要将谓语动词变为do的相应的形式：不论原来的谓语动词后面跟的是人、物还是地点，一律用what来代替。如：
1)they
are
playing
football.
①they
are
doing
what.
②are
they
doing
what？
③what
are
they
doing？
2)they
wolf
is
going
to
kill
that
man.
①they
wolf
is
going
to
do
what.
②is
the
wolf
going
to
do
what？
③what
is
the
wolf
going
to
do？
3.
如果句子的划线部分是定语，并且在谓语部分，这时，需将特殊疑问词和紧跟其后的名词一起提到句首。如：
1)that
is
his
pen.
①that
is
whose
pen.
②is
that
whose
pen？
③whose
pen
is
that？
对定语划线部分提问题，如果划线部分是所属关系，特殊疑问词用whose；如果划线部分指具体的“某一个”时特殊疑问词用which；如果划线部分指内容或职业时，特殊疑问词用what；如果划线部分指数量时，特殊疑问词用how
many(可数)或how
much(不可数)。如：
1)
they
are
the
legs
of
the
desk.
①they
are
whose
legs.
②are
they
whose
legs？
③whose
legs
are
they？
2)i
like
red
one.
①you
like
which
one.
②do
you
like
which
one？
③which
one
do
you
like？
3)they
have
five
english
books.
①they
have
how
many
english
books.
②do
they
have
how
many
english
books？
⑤how
many
english
books
do
they
have？
【经典范例引路】
例1
we
go
to
the
school
library
twice
a
month.
(对划线部分提问)
do
you
go
to
the
school
library？
(2001年四川省中考题)
简析：句子的划线部分为twice
a
month，表示频率，对表示频率的时间状语提问要用how
often。故答案为
how
often。
例2
they
needed
to
climb
up
the
tree
with
ladders.
(对划线部分提问)
they
to
climb
up
the
tree
with？
(2001年济南市中考题)
简析：①根据句子的划线部分ladders表示物，应用疑问代词what来代替划线部分。②把what代替划线部分ladders的句子变成一般疑问句为：did
they
need
to
climb
up
the
tree
with
what？③把特殊疑问词
what提到句首为：what
did
they
need
to
climb
up
the
tree
with？故答案为：what
did，need。