形似神不同,亮眼辨名词性从句 新洲三中英语教师 陈红英http://www.DearEDU.com名词性从句既是高中英语教学的重点和难点，也是高考的热点，在 06 年的 19 套普通高等学校招生全国统一考试中，有 13 道题是考查名词性从句的，其中全国卷一中甚至有两道题（23，33）都是考查名词性从句中的表语从句和宾语从句，而其之所以成为难点，主要在于其容易与其它重句混淆，下面我们一起来区分一下同位语与定语从句，it 引导的主语从句与强调句型和宾语从句和状语从句。Ⅰ. 同位语从句和定语从句:首先来看下面三道题:1. Nobody believed his reason for being absent from the class ______ he had to meet his uncle at the airport. (06 重庆卷) 2. Don’t believe his reason _______ he gave you.3. The reason _______ he was late is that he has been ill.A. why B. that C. where D. because解析: 第一题选 B, that 引导同位语从句与先行词 reason 同位; 第二题选 B, 关系代词 that跟在先行词 reason 的后面引导定语从句, 在从句中做宾语;第三题选 A 或 B,先行词 reason 在定语从句中作原因状语,可用 why, for which 和 that 引导.思考: 同为先行词 reason, 但其后面的从句分别是同位语从句和定语从句,如何区分呢?可以从两个方面考虑:1.连接词是否在从句中作成份,作成分则是定语从句,如上 2,3 题.反之,有可能是名词性从句.2.意义上从句是否与先行词(常为抽象名词)同位.同位则是名词性从句试区别:1.The idea that we invited him yesterday is wonderful. (_________从句)2.The idea that he told me yesterday is wonderful. (_________从句)Ⅱ.it 引导的主语从句与强调句型:首先来看两道高考题:1._________is our belief that improvements in health care will lead to a stronger, more prosperous economy. (06 浙江卷 )A. As B. That C. This D. It2.It was after he got what he had desired _________he realized it was not so important. (06辽宁卷) A. that B.when C.since D.as解析:第一题选 D,此题考查以形式主语 it 开头的主语从句.第二题选 A,此题考查强调句型.思考: 再回头看看这两题,句式十分相似,同为 it is …that…句式,如何区分理解呢? 只要把 it is …...
