9)this kind of book=a book of this kind(这种书),其谓语用单数；短语this kind of men=men of this kind=these kind of men(口语)(这一类人),但this kind of men的谓语用单数,men of this kind和these kind of men的谓语用复数.allkinds of后跟复数名词,谓语用复数形式.例如：
This kind of men is dangerous.
Men of this kind are dangerous.