高中名词性从句复习的重要课件

1、名词性从句1,包括四种从句,名词性从句的功能,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 从句又可分为四类。,名词性从句,表语从句 宾语从句 主语从句 同位语从句,引导名词性从句的连接词,1. 连接词 that, whether, if (不充当从句 的任何成分) 2. 连接代词: what, whatever, who, whoever, whom,whose, which (不仅起到 连接一个句子的作用, 同时也是从句 的一个组成部分) 3. 连接副词: when, where, how, why,引导名词

2、性从句不可省略的连词,引导主语从句、表语从句和同位语从句的连词不可省略。 介词后的连词,Subject clause (主语从句),主语从句是在复合句中充当主语的从句， 通常放在主句谓语动词之前或由形式 主语 it 代替, 而本身放在句子末尾。,1. 主语从句可放句首, 此时连接词 that 一般 不省略。主语从句也可用于It is that 句型。Whether引导主语从句意为“是否”， 这时通常不用 if。,That we need more equipment is obvious. or: It is obvious that we need more equipment.,2. It

3、 用作形式主语的句子常出现于下列句型中：,1) It is +adj.+that(eg. natural/strange etc.) 2) It is + n. (eg. a shame/pity, no wonder, a fact) +that 3) It is+said/reported/known/believed/ thought/proved+that 4) It seems/appears that似乎 It happens that碰巧 It occurs to sb that发生不好的事情,1) if 引导的主语从句不可居于句首。 2) It is said /reporte

4、d that 结构中 的主语从句不可提前。例如： That President Jiang will visit our school next week is said. (wrong),3. 主语从句不可位于句首的五种情况,名词性从句的主谓一致,主语是名词性从句, 动词通常用单数形式。 e.g. What I am most interested in is American movies我最感兴趣的是美国电影。,但在下面的句子中谓语动词要用复数形式， 因为主语从句中的动词是复数, 所以主语 从句应当作复数看待。例如： Who are going to attend the meeting

5、 have been decided by the manager,5) 含主语从句的复合句是疑问句时, 主语 从句不可提前。例如：,Is that it will rain in the evening likely? (wrong),Is it likely that it will rain in the evening?,(right),Object clause (宾语从句),在一个句子中, 不是由一个词组, 而是由一个 句子充当的宾语, 这个句子叫做宾语从句。其 作用相当于一个名词词组。 引导宾语从句的连接词： 连词: whether, if, that 连接代词: who, wh

6、om, whose, what, which, etc. 连接副词: when, where, why, how, etc.,1. 作动词的宾语 She did not know what had happened. 动词间接宾语宾语从句 e.g. She told me that she would accept my invitation.,宾语从句就是在复合句中作宾语的名词性从句，通常放在主句谓语动词(及物动词)或介词之后。,2. 作介词的宾语e.g. Our success depends upon how well we can cooperate with one another.3. 作形容词的宾语 e.g. I am afraid (that) Ive made a mistake.that 引导的从句常跟在下列形容词后作宾语：anxious, certain, convinced, determined, glad, proud, surprised, worried, sorry, ashamed, disappointed, annoyed, pleased, satisfied, content 等。,4. It 可以作为形式宾语,make, think, consider, feel, find,It 不仅可以作为