Declarative Sentence
非疑问句使用降调。
I’d do it if I had the money/time.
Hand me a cup of coffee/a cup.
Yes/No Question
一般疑问句使用升调。
Are you hungry?
Do you ski?
Wh-/How Question
特殊疑问句，可以使用升调或者降调。
Where are you from?
How’ve you been doing?
A: I’ll be back on Friday. B: What did you say?
A: I’ll be back on Friday. B: When will you back?
Choice Question - open & closed
选择疑问句，通常开放式疑问使用升调，封闭式疑问先升后降。
Would you like cake or cookies?
Tag Question - true & not true
反意疑问句是在陈述句后边加上一个简短问句，对陈述句所叙述的内容提出相反的疑问，这种句子就叫作反意疑问句。反意疑问句可以表示真实的疑问，期待对方的回答；也可以表示非真实的疑问，即问句是对提问人的倾向、强调或反问。表达真实的疑问时，通常用升调；而表达非真实的疑问时，通常用降调。
You’re going to the party tonight, aren’t you?
You have two sons, right?
It’s cold out, isn’t it?
You’ve been from Venezuela, aren’t you?
Direct Address
直接称呼用升调。
John, can you come here?
Don’t do it in that way, Jack.
Series
并列信息，连续使用升调，最后降调。
I like red, blue and green.
I have traveled Europe, Asia and South America.
Extra Information
附加信息部分，使用降调陈述。
The university, the place where I work, emplys over 10,000 employees.
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