一些常见的用来获取更多信息的方法是用疑问副词进行提问，如 when are we going，where are we going 或 why are we going；其中 when，where 和 why 是也三个常见的关系副词。
关系副词是指提供更多关于所讨论的人、地点或事物的信息的词。除此之外，关系副词还把从句和句子连接在一起，并且置于定语从句的开头，引导不同性质的定语从句，其中 when 在定语从句中作时间状语，where 作地点状语，why 作原因状语。
一、关系副词如何工作
关系副词用来引出从句，并把名词或代词与从句连接起来。
1. when 的意思是相当于 in which，但相比于 in which， when 稍显得没那么正式，用来告知一个动作发生的时间，例如：
The summer when I graduated from university was long and hot.
我大学毕业的那年夏天是漫长而炎热的。
The day when the concert takes place is Sunday.That’s the year when we got married.2. where 的意思相当于 in which 或 at which，同理它们也比 where 稍微正式，用来告知句中主语的位置，例如：We danced by the table where we could see the view.The bar in Barcelona where I met my wife is still there.a. This is the store where I met my friend.b. This is the store at which I met my friend.c. This is the store in which I met my friend.解析：这三句还是有本质的区别，句a的意思显得比较含糊（在商店里面或在商店外面），而句b和句c的区别主要是 in 和 at 表地点时的区别，也就是商店里面与外面的区别。3. why 的意思相当于 for which，它也比 why 稍微正式，用来提供关于某事发生的原因，例如：Her mass of library of books is the reason why she’s so well-spoken.Can you provide more information why this conclusion is valid?I have no idea why he called.
1. I want to travel to a place _____ it is warm and sunny.2. The person who interviewed me for the job asked _____ I am interested in working as a customer service representative.3. I really don't understand _____ the cake I baked did not rise.6. Can anyone help me find out _____ my great-great grandparents came to the United States?7. My teacher wanted to know _____ my homework was late again.8. I will tell you as soon as I find out _____ the meeting is scheduled.9. I need to find a place _____ I can stay when I visit campus next month.10. Do you know _____ your sister is grounded?
