高中主语从句

升高二英语名词性从句之主语从句姓名： 年级： 老师： 刘琳 学习过程一、主语从句的概念与类型 主语从句在复合句中作主句的主语,引导主语从句的词有从属连词 that, whether 以及连接代词who, what, which, whoever, whatever, whichever 和连接副词 when, where, why, how 等.一、从属连词：that， whether 等.that 引导主语从句只起引导作用，本身无实际意义，在主语从句中不充当任何成分，但不能省略。That he will win is certain.他肯定会赢。Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。注意: 由 that 引导的主语从句有时为了使句子结构平衡, 避开 “头重脚轻”, 常用 it 作形式主语, 而把从句放在后面。 例如: 1. That he will refuse this piece of advice is impossible. they should like each other is natural. 这样就构成了下面一些常用句型: 1) It is + n. +从句 It is a pity/shame that... 遗憾的是…… It is a surprise that…令人惊奇的是… It is a fact that… …是事实 It is common knowledge that… …是常识______________(很遗憾)we lost the match._____________(这是事实)he cheated in the exam.2) It is + adj. +从句 It’s certain that… 肯定… It is possible that... 很可能…… It is unlikely that... 不可能…… It is obvious that… 很明显… It is necessary \important \natural\... that…+(should) do ________________(很可能)she will come back tomorrow.*_________________(很明显)this measure is effective.3) It +不及物动词+从句 It happened that... 碰巧…… It occurred to me that…我突然想起…_______________(刚好)I came into the office at that time.*____________________(我突然想起)I forget to sent the letter.4) It + be +过去分词+从句 It is said that... 据说…… It is known to all that... 众所周知…… It is reported that... 据报道…… It is believed that..人们信任…… It is suggested that + (should）do... 建议……It must be admitted that…必须承认…… It cannot be denied that… 不可否认…… It must be po...