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◆名词性从句(主语从句、宾语从句、表语从句、同位语从句)中连接词的运用 名词性从句中的连接词有从属连词that/whether/if，连接代词what/who/which/whose/whatever/whoever/whomever/whichever，连接副词where/when/why/how/wherever/whenever。 1．that的用法。 (1)主语从句、表语从句、同位语从句中用that但不能省略。 That they are good at English is known to us all. The problem is that we don’t have enough money. The report that there will be a severe storm in the northern area is false. (2)一般情况下，宾语从句中的引导词that可省略，但在以下几种情况中that一般不省略：(A)当that从句和主句谓语动词之间有插入语时；(B)有多个that引导的从句时，第一个that可以省略，而其他的that常不可省略；(C)介词except，but，besides，in等后跟that引导的宾语从句时；(D)当when，who，what，where，why，how等引导的从句与that引导的从句作主句谓语动词的并列宾语时。 He judged that，because he was a child，he did not understand wine. The reason lies in that she works harder than the others do. Everyone knew what happened and that she was worried. (3)that和what的区别。 that 引导名词性从句时，在主从句中不担当任何句子成分，也没有任何含义；而what引导名词性从句时，在主从句中都要充当一定的句子成分，what可以分解成定语从句中的“先行词＋关系代词”，即常说的“先行词＋that/which/who”。 | 
