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1. 变成一般疑问句 将陈述句变成一般疑问句，要根据陈述句中的谓语动词及其时态确定疑问形式。其句型特点一般是：助动词或情态动词 + 主语 + 谓语 + 动词 + 其他？如： The policeman told the boys not to play football in the street. (甘肃省中考题) ________ the policeman ________ the boys not to play football in the street? 答案：Did, tell 2. 变成特殊疑问句 将陈述句变成特殊疑问句时，常用的方法是一选，二移，三变，四代。一选就是选择疑问词，被选择的疑问代词有：what, which, who, whose；疑问副词有：where, when, why, how；疑问副词词组有：how long, how often, how soon, how far, how many, how much, how old等。二移就是把be动词，助动词或情态动词移到句首。三变就是将原句中第一个单词的首字母改为小写(专有名词除外)，将some, something等改为any, anything等，将句号改为问号。四代就是将选好的特殊疑问词替代划线部分。如：(西宁市中考题) At the age of three, David weighed 20 kilos. (就划线部分提问) ________ did David weigh at the age of three? 答案：How much 3. 变成选择疑问句 | 
