名词性从句英语语法知识点汇总.pdf

名名词词性性从从句句英英语语语语法法知知识识点点汇汇总总 名词性从句是在句⼦中起名词作⽤的句⼦。 名词性从句的功能相当于名词词组， 它在复 句中能担任主 语、宾语、表语、同位语、介词宾语等。下⾯就是⼩编给⼤家带来的名词性从句英语语法知识点汇总，希望 ⼤家喜欢！ 1 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三类： 连接词：that,w hether,if 不充当从句的任何成分) 连接代词：w hat, w hatever, w ho, w hoever, w hom, w hose, w hich. 连接副词：w hen, w here, how , w hy 不可省略的连词： 1. 介词后的连词 2. 引导主语从句和同位语从句的连词不可省略。 That she was chosen made us very happy. We heard the news that our team had won. ⽐较：w hether与if 均为"是否"的意思。 但在下列情况下，w hether 不能被if 取代： 1. w hether引导主语从句并在句⾸ 2. 引导表语从句 3. w hether从句作介词宾语 4. 从句后有"or not" Whether he w ill come is not clear. ⼤部分连接词引导的主语从句都可以置于句末，⽤ it充当形式主语。 It is not important w ho w ill o. It is still unknow n w hich team w ill w in the match. 2 名词性that-从句 1)由从属连词that引导的从句叫做名词性that-从句。 That只起连接主句和从句的作⽤，在从句中不担任 任何成分，本⾝也没有词义。名词性that-从句在句中能充当主 语、宾语、表语、同位语和形容词宾语，例 如： 主语：That he is still alive is sheer luck.　 他还活着全靠运⽓。 宾语：John said that he was leavin for London on Wednesday.　约翰说他星期三要到伦敦去。 表语：The fact is that he has not been seen recently.　　　事实是近来谁也没有见过他。 同位语：The fact that he has not been seen recently disturbs everyone in his office. 近来谁也没有见过他，这⼀事实令办公室所有的⼈不安。 形容词宾语：I am lad that you are satisfied w ith your job. 你对⼯作满意我感到很⾼兴。 2)That-从句作主语通常⽤it作先⾏词，⽽将that-从句置于句末，例如： It is quite clear that the w hole project is doomed to failure.　很清楚，整个计划注定要失败。 It's a pity that you should have to leave.　你⾮⾛不可真是件憾事。 ⽤it作形式主语的that-从句有以下四种不同的搭配关系： a. It + be +形容词+ that-从句 It is necessary that…　　　 有必要…… It is important that…　　　 重要的是…… It is obvious that…　　　　 很明显…… b. It + be + -ed 分词+ that-从句 It is believed that…　　　　　⼈们相信…… It is know n to all that…　　　从所周知…… It has been decided that…　　 已决定…… c. It + be +名词+ that-从句 It is common know led e that…　 ……是常识 It is a surpr