find是及物动词,后面接的从句一定是宾语从句,这个宾语从句用从属连接词that引导,可以表示“发现”的意思。find的后面也可以接名词,它的过去式和过去分词均为found,如:I found that the book was very difficult.I found that the idea was very practical.这两句话也可以说成:I found the book difficult.I found the idea practical.