名词性从句 一.概念 在句子中起名词作用的句子叫名词从句 (Noun Clauses).名词从句的功能相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语、介词宾语等,因此根据它在句中不同的语法功能,名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。 二.语序 所有名词性从句都是引导词(在最前)+陈述句语序(即:主语在前,谓语在后.即使从句表达的是疑问含义). What w e can't get seems better than what we have. The photographs will show you w hat our village looks like. He asked how much I paid for the violin. 三.引导词 引导名词性从句的引导词 类 别 词 义 在从句中的作用 从属连词that 无任何词义 仅起连接作用，在从句中不充当任何句子成分 从属连词whether 和if(是否) 意为“是否” ，表明从句意义的不确定性 起连接作用，在从句中不充当任何句子成分 关系代词who, whom, what, which,whose,whoever, whomever, whatever, whichever 有各自自身的意义 起连接作用，并在从句中充当主、表、宾、定语等 关系副词when, where, why, how, however, whenever, wherever 有各自自身的意义 起连接作用，并在从句中充当状语 注意:名词性从句引导词,只有that在引导主语从句后置时,以及在引导宾语从句时有时可以省.其它情况下,以及其它名词性从句引导词均不能省. 注意:只有在引导宾语从句(有些情况下不能用if 代替whether)以及whether 引导主语从句后置时才可用if.其它情况下,以及引导其它名词性从句时均不能用if. 四.分类详解 主语从句 在句子中作主语的句子叫主语从句. 1.由从属连词that, whether 引导的主语从句： ▲that 引导主语从句放在句首时,that 不可省. That light travels in straight line is known to all. (that 不能省) That he will succeed is certain. (that 不能省) That he is still alive is a wonder. (that 不能省) That the baby could speak made his parents very happy. (that 不能省) That she became an artist may have been due to her father’s influence. (that 不能省) ______ you don’t like him is none of my business. (1992 上海高考试题) A. What B. Who C. That D. Whether ▲whether 引导的主语从句一般位...
