This is a key in Engelish.(对划线部分提问)a key是划线句

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.