一、把句子改成第三人称的转述句怎么改
妈妈说：“我喜欢购物。”
Mom says, “I like go shopping.”(这是第一人称，直接引语)
变成第三人称就是1.把引号逗号去掉，
2.第一人称变第三人称，即I变成she，
3.相应的，动词记得变为第三人称单数
4.that 可加可不加
Mom says （that）she likes go shopping.
这个是最简单的例子了。
二、把疑问句改成转述的陈述句怎么改
间接引语为陈述语序：主句的谓语动词say 改为ask,或改为wonder, do not know, want to know, be not sure, be puzzled等。
（1） 一般疑问句或反意疑问句变为if (whether)引导的宾语从句。
She said, "Do you often come here to read newspapers?"
→She asked me if (或whether)I often went there to read newspapers.
She asked me , "You have seen the film, haven't you?"
→She asked me whether(或if )I had seen the film.
（2） 选择疑问句变为whether….or 宾语从句。
I asked him, "Will you stay at home or go to a film tonight?"
→I asked him whether he would stay at home or go to a film that night.
(3)特殊疑问句变为由原来的疑问词引导的宾语从句。
He asked , "Where do you live?"
→He asked me where I lived.
引用：
http://www.jxenglish.com/Article/grammar/8935.html