Unit 1 A land of diversityLearning about languageGrammar名词性从句Ⅰ.基本概念：在句子中起名词作用的句子叫名词性从句 (Noun Clauses)。 名词性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，名词性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。 Ⅱ. 高考重点要求：1、 掌握主语从句、宾语从句、同位语从句、表语从句的基本句型结构2、 弄清名词性从句的连词的用法和意义3、 根据句子语义确定使用何种从属连词Ⅲ.知识归纳一、引导名词性从句的连接词 引导名词性从句的连接词可分为两类：1. 名词性 that 从句，即以 that 为连接词的名词性从句。that 只能起连接主句和从句的作用，不充当从句的任何成分，无词义。2. 名词性 wh-从句，即以 wh-词连接的名词性从句。Wh-词包括：连接代词：who, whom, whose, what, which, whoever, whatever, whichever连接副词：when, where, how, why连接词 whether, if 不充当句子的任何成分。二、主语从句1. 用作主语的从句叫主语从句。that 从句作主语，that 不能省略。▲That he likes such kind of books is very interesting.他喜欢这种书是非常有趣的。▲Whether he will be able to come remains a question. 他是否能够来仍然是一个问题。▲What he is looking for is none of your business. 他在找什么与你无关。2. 很多主语从句都可以用 that 作形式主语。例如：用心 爱心 专心It is very interesting that he likes such kind of books. W.w.It remains a question whether he will be able to come.3. It 作形式主语主要包括以下几种类型和搭配关系：1）It + be + adj. + 从句It was obvious that the driver could not control his car.2）It + be + n. + 从句It is a pity that he missed the lecture.3）It + be + 过去分词 + 从句It is said that they have won the game.4）It + be + vi. + 从句 It seems that something is wrong with the computer.三、表语从句表语从句在句中作表语，它位于主句的联系动词之后。that 从句作表语，that 不能省略。表语从句只用 whether，不用 if。▲The problem is that smokers cann...
