介詞賓語從句特點：
1、介詞賓語從句多由疑問詞引導。
2、介詞+that 結構。常見的有：in that因為、but that要不是、except that、save that、besides tha、beyond that 除了
例句：
1、Whether we find a joke funny or not largely depends on where we have been brought up.（新概念第三冊）
我們覺得壹則笑話是否可笑，很大程度上取決於我們是哪裏長大的。
2、He was not conscious of what a big mistake he had made.
他沒有意識到他犯了壹個大錯。
3、The essay was perfect except that there were some misprints.
除了壹些拼寫錯誤，這篇文章是很優秀的。
4、She knew nothing besides that he was such a bore.
她只知道他是個討厭鬼，別的壹無所知。
5、But that I saw it I could not have believed it.
要不是親眼看到，我是不會相信的。