注意引导词：
1. 直接引语如果是陈述句，变为间接引语时，不用引号，而用连接词that，但有时可省略。如：
He says, “I am not from the U.S.A.” → He says that he is not from the U.S.A.
2. 直接引语如果是一般疑问句，变为间接引语时，需用从属连接词whether或if引导，said要改为asked，没有间接宾语时可以加一个间接宾语，语序改为陈述句语序。如：
He said, “Are you a teacher?” → He asked me if / whether I was a teacher.
温馨提示： 大多数情况下，if和whether 可以互换，但当句中有or not，或在动词不定式前，或放在介词后作连接词时，一般只用whether。如：
She asked me whether he could do it or not.
3. 直接引语如果是特殊疑问句，变为间接引语时，需用原来的疑问词引导，语序是：疑问词 + 主语 + 谓语 + 其他。如：
My sister asked me, “How do you like the film?” → My sister asked me how I liked the film.
4. 直接引语是祈使句，变成间接引语时，要把动词原形变成动词不定式，并在动词不定式前加tell, ask, order等的宾语。如：
He said, “Please come here again tomorrow.”
He asked me to go there again the next day.
