定语从句和名词性从句是高中英语教学的重要组成部分,也是历年来高考的重要考点,尤其是在单选、语法填空等题型中考查较多,因此弄清并熟练掌握这些从句十分重要。在平时的学习中,同学们总是对从句的引导词的选择和使用感觉比较困惑,现在对这个问题进行讲解和辨析。一、了解名词性从句与定语从句引导词的类别1.名词性从句的引导词分为三类:连词、连接代词和连接副词。连词就是只在主句和从句间起连接作用,而不在从句中担任成分,包括that,whether, Attributive clause and noun clause is an important part of senior high school English teaching. It is also an important test point for college entrance examination over the years, especially in examinations such as singles and grammar blanketing. Therefore, it is very important to understand and master these clauses. In normal learning, students always feel more puzzled about the choice and use of the leading clause of the clause, and now explain and distinguish this issue. First, to understand the nominal clause and the attributive clause leading category 1. Nominal clause guide words are divided into three categories: conjunctions, pronouns and connecting adverbs. Conjunctions are only connected between the main clause and the clause, but not in the clause as a component, including that, whether,