1、直接引语中,引号内是陈述句的,变间接引语时用that引导。如Hesaid,"I'mateacher".(这是一个直接引语的句子,而且引号内是陈述句,所以变为间接引语时用that引导,而且that可省略。)-----Hesaid(that)hewasateacher.2、直接引语中,引号内是一般疑问句的,变间接引语时用if引导宾语从句,而且要把疑问句语序变为陈述句语序。Sheasked,"AreyouChinese?"(这个是一个直接引语的句子,而且引号内是一个一般疑问句,所以变间接引语时用if引导。)----HeaskedifIwasChinese.3、直接引语中,引号内是特殊疑问句的,变间接引语时用疑问词来引导宾语从句,而且要把疑问句语序变为陈述句语序。Heasked,"what'sthat?"----Heaskedwhatthatwas.Theteacherasked,"whereisthebook?"-----Theteacheraskedwherethebookwas.Mymotherasked,"whydidn'tyougohomeyesterday?"----MymotheraskedwhyIhadn'tgonehomethedaybeforeyesterday.(这里做了时态、人称、时间状语的变化)