框架结构图
名词性从句(主语从句、宾语从句、表语从句、同位语从句)中的连接词
名词性从句中的连接词有从属连词that/whether/if等，连接代词what/who/which/whose/
whatever/whoever/whomever/whichever等，连接副词where/when/why/how/wherever/whenever等。
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：①当that从句和主句谓语动词之间有插入语时；②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；③介词except，but，besides，in等后跟that引导的宾语从句时；④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.
