你这个问题很笼统,也很大.
1一般疑问句通常用升调,Are you a boy?Can you sing?
2 特殊疑问句,陈述句,感叹句,祈使句,以及一般疑问句的回答,这些通通用降调.
3选择疑问句,前升、后降.Are you American or English?
4 并列词、词组,前面通通用升调,连词后面用降调.There are five people in my family.
There are My grandmother,grandfather,my mother,my father and I.
5反义疑问句,升、降调同时出现,表达语气不同.