2020届高考英语二轮复习专项语法课件：名词性从句 (2份打包)

二轮复习 名词性从句 在英语的句子结构中，如果本该由名词充当的主语、宾语、表语和同位语，由一个句子来充当，那么这个句子就叫__________。 主语从句 宾语从句 表语从句 同位语从句 名词性从句 名词性从句 引导词 连接词: that, whether, if, because, as if, as though 连接代词: who, whom, what, which, whose, whatever 连接副词: when, where, why, how, however, wherever 名词性从句的引导词 What I want to do is to go shopping. 2. She had a feeling that she was being watched. 3. I don’t think that he is an honest boy. 4. Who will go with you is decided by yourself. (主语从句) (同位语从句) (宾语从句) (主语从句) 判断从句的方法： 一 找谓语动词 二 找引导词划从句 三 看从句在主句的位置 请判断出下列的句子属于哪种从句： 在名词性从句中一律用陈述句的语序，即使从句表达的是疑问含义。 The problem is what he has done to the little boy. 问题是他对那个小男孩做了些什么。 1. 主语从句 主语从句通常由从属连词that，whether 和连接代词what, who, which, whatever, whoever以及连接副词how, when, where, why等词引导。 that在从句中无词义，只起连接作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当成分。 Who will win the match is still unknown. Where the English evening will be held has not yet been announced. That he stole a bike was true. What he wants to tell us is not clear. 单个的主语从句作主语时，谓语动词用单数形式。如果是两个或两个以上的主语从句作主语，谓语动词则用复数形式。 Where and when he was born has not been found. When the person was murdered and why he was murdered are still unknown. 有时为避免句子头重脚轻，常用it 代替主语从句作形式主语放于句首，而把主语从句置于句末。主句的谓语动词一般用单数形式。常用句型如下： 1）It + be + 名词 + that从句 2）It + be + 形容词 + that从句 3）It + be + 动词的过去分词 + that从句 4）It + 不及物动词 + that 从句 It is known to us how he became a writer. 注意:在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气 “(should) +do”，常用的句型有： It is necessary /important/natural/strange, etc.) that … 2. 宾语从句 名词句用作宾语的从句叫宾语从句。 引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样，在句中可以作及物动词或介词及某些形容词的宾语。 连接词that引导宾语从句时，句中不担任任何成分，在口语或非正式的文体中常被省去。但下面情况中不能省略。 （1）that一般不能充当介词宾语,但except,in的宾语。如: He is a good student except that he is a little bit careless. 他是个好学生,就是有点粗心。 其他介词后面需要用that从句作宾语时,必须用it作形式宾语。如: You may depend on it that I shall always help you. 你要相信我会一直帮助你的。 1.由连接词that引导的宾语从句 (4)it作形式宾语的宾语从句。 ①一些动词后的宾语从句有宾语补足语时，则需要用it作形式宾语，而将that引导的宾语从句后置。常见的这类动词有find, think, consider, believe, guess, suppose, make等。 He has made it clear