新概念英语第二册名词性主语从句语法知识及练习

新概念英语第二册名词性主语从句语法知识及练习新概念英语其次册名词性主语从句语法学问及练习 导语：主语从句即在复合句中充当主语成分的句子，下面 YJBYS我带来新概念英语其次册名词性主语从句语法学问及练习，欢迎参考! 学问要点： 名词性从句包括：主语从句、表语从句、宾语从句和同位语从句引导名词性从句的连词有： A.连词：that, whether, if(这三个词都不作从句的成分，同时，that 无含义，而 whether 和 if 都表;是否;) B.疑问代词：who, whom, whose, what, which C.疑问副词：when, where, why, how 主语从句：在复合句中充当主语的从句。 1.that 引导主语从句 that 引导主语从句时不同于其他的连词，既无词义也不作成分，只起单纯的连接作用，且通常不行以省。为了强调 that 引导的主语从句而置之于句首时，that 不行省。 ① That the driver could not control his car was obvious. ② That she was chosen made us very happy. ③ That he will come is certain. ④ That he would take the risk is true. ⑤ That he should have married her isn't surprising. ★通常，that 引导主语从句时用 it 做形式主语，把从句置于句尾，此时 that 有时可省。例如： ① It was obvious that the driver could not control his car. ② It made us very happy that she was chosen. ③ It is certain that he will come. ④ It is true that he would take the risk. ⑤ It isn't surprising (that) he should have married her. ★假如以 that 从句为主语的句子是疑问句，就只能用先行词 it结构。例如： ① Is it certain that he will come? ② Is it true that he would take the risk? ▲it 做形式主语有以下几种不同的结构： (1)It + be + 形容词+ that-从句 ① It is likely that he will come. ② It is strange that she has ever trusted him. ③ It is important that he (should) attend the meeting. ④ It is best that he (should) go. 此句型在表示惊异、喜悦、缺憾等感情色调时，that 从句中的谓语动词也常用 (should) + v 原形。 It is strange that no one should have objected to th...