名词名词:是指人或事物名称的词。名词专有名词 China普通名词 个体名词 book集体名词 family物质名词 water抽象名词 work不可数名词可数名词名词变复数A bookThis is a book.This is a chinese book.These are some books.Whats this?What are these?Its a book.They are books.Whats this in English?Its an apple.What are these?They are two apples.-What are these?-Whats this?-Its a pen.-They are pens.-What are those?-Whats that?-Its an English book.-They are English books.bagswatchesorangespens-Whatre these ?-Theyre .mapscases keys-Whatre those ?-Theyre .This _.These _.i