疑问词的英语：what、who、which、whose、whom；(what、which、whose) + 名词；when、where、why、how。
1、what 引导的疑问句：可以对主语、表语和宾语提问。What is your bag? 你包里有什么？There are some books in it.在包里有一些书。What did you buy? 你买了什么？I bought a pen. 我买了支铅笔。What's this? 这是什么？It's a cat. 这是一只猫。What's your father？你父亲是干什么的？ He is a doctor. 他是一名医生。
2、which 引导的疑问句：可以对主语和宾语提问。Which is Tom's ? 哪个是汤姆的？ This is his. 这是他的。Which does he want? 他想要哪一个？ He wants the yellow one. 他想要那个黄色的。
3、who/whose/whom 引导的疑问句：可以对主语、表语和宾语提问。Who bought the pencils? 谁买的这些铅笔？ Ms. Smart did. 斯玛特老师买的。Who is that girl? 那个女孩是谁？She is my sister. 她是我姐姐。
whose 之后如果没有名词，表示“谁的东西...”。Whose is this sweater? 这件毛衣是谁的？This sweater is my brother's. 是我哥哥的。
疑问形容词
what、which、whose 后面跟名词时，这三个疑问词起形容词的作用。
1、Whose teacher is very nice? 谁的老师很和蔼？ Linda's teacher is very nice. 琳达的老师很和蔼。
2、What food do you like? 你喜欢什么食物？ I like rice. 我喜欢米饭。
3、Which bag did you buy? 哪个包是你买的？I took the green one. 那个绿色的包是我买的。
4、Whose T-shirts are these? 这些是谁的T恤衫？They are ours. 这些是我们的。