名词种类的表示有kind of, sort of, type of, 三种，那么这三种表示的具体区别是什么?
(1) 三者都可接可数名词及不可数名词，其后的冠词a (an)常被省略。
What kind of (a) pencil did you buy?
I don't like that sort of game.
(2) kind of, sort of, type of之前可加a, the, some, any, etc.
I had a kind of suspicion that he was cheating.
(3) 比较下列用法：(加*表非正式用法)
I don't like this (*those) kind of person.
I don't like many (or these) kinds of roses.
I like this kind of flower.
I like flowers of this kind.
I like *these kind of flowers.
I like this kind of roses.)
I like roses of this kind. (置名词后更强调种类)
I like roses of these kinds.(置名词后更强调种类)