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第十六单元 推展段落方法之八分类法 16.1分类法 分类法（division and classification）是把一事物拆成几部分，表明这些部分与整体的关系。通常，作者以总类开头，然后把总类拆开，列举部分或全部分类。 示范段落16－1 There are three basic kinds of materials that can be found in any good library.First，there are books on all subjects，both in English and in many other languages.These books are organized according to subject，title，and author in a central filing system called card catalog.Books can generally be checked out of the library and taken home for a period of two to four weeks.Second，there are reference materials，which include encyclopedias，dictionaries，bibliographies，atlases，etc.and which generally must be used in the library itself.Third，there are periodicalsmagazines，news－papers，pamphletswhich are filed alphbetically in racks or which have been micro－filmed to conserve space.Like reference works，periodicals cannot usually be removed from the library. 16.2示范段落分析 主题句：There are three basic kinds of materials that can be foundin any good library. 分类词（Classifier）：kinds 列举词（Listing Signals）：first，second，third 分类（Categories）：1.books on all subjects | 
