英语疑问句有四种：一般疑问句，特殊疑问句，选择疑问句，反意疑问句。

一般疑问句：助动词，be动词，情态动词放到句首，回答通常是Yes/no

Do you like apples? Yes, I do./No, I don,t

Is he a teacher? Yes ,he is./No, he isn't

Will you go to Shanghai tomorrow? Yes, I will./No, i won't.

特殊疑问句：特殊疑问词开头，通常是想知道具体的内容。

What do you like? I like apples.

How old are you? I am 14 years old.

When will you leave? I will leave at 4p.m.

选择疑问句： or

Which do you like, apples or pears? I like apples.

反义疑问句，又称附加疑问句

He is a teacher, isn,t he?

He isn't a teacher, is he?

遵循的规则是前面肯定后面否定，前面否定后面肯定