长难句(简介)

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,English Long Sentences-Introduction,1,一、特点,1.所含单词较多，通常为20-25个单词,2.在句子的主干（主句）上直接或间接地附有各种从属结,构层，即从句和各种分句，而且常常句中有句。,Used only for wall surfaces that are exposed to view or,require a decorative effect,face brick must be exact in,shape,size,and color.,2,二、剖析的理据,主谓意识,1.任何英语句子都有严谨的主谓结构，是句子的主干,2.主语由名词短语充当，而且不可或缺,3.谓语由限定动词充当，受主语的限制，在形态上要有时,态标志，要遵守主谓一致的原则,4.句子有主句、从句之分，但只要是句子，就有主谓结构,5.句子最基本的两种主干是：主谓宾、主谓表,3,It is generally recognized,however,that the introduction of the computer in the early 20th century,followed by the invention of the integrated circuit during the 1960s,radically changed the process,although its impact on the media was not immediately apparent.,4,三、从属结构形式,1.特点,1)表达次要的思想和内容,2)不是句子，不能单独成句,3)主要包括：从句、非限定分句、无动词分句,(1)从句：名词从句、关系从句/定词从句、同位语从句、,状语从句；从句必须有引导词，且应位于句首，某些从句,可简化为非限定分句,(2)非限定分句：不定式分句、-ing分句、-ed分句；不能,单独使用，简洁正式,(3)无动词分句：不带谓语词组；作状语或后置定语；不,能单独使用，简洁正式,5,2.Examples,1)从句,Prof.Lee will show you how what you have observed,can be used in other contexts.,2)非限定分句,Founded in 1961 and employing an estimated 35,000,people,the organization has gained a reputation for,brutality.,3)无动词分句,One of the most popular tourist sites in Italy,Pompeii,was viewed by nearly two million visitors last year.,6,