1.關系副詞 when
關系副詞when在所引導的定語從句中作時間狀語，先行詞通常是表示時間的名詞或代詞。
I am looking forward to the day when my daughter can read this boo-k and know my feelings for her.
我期待著有一天，我的女兒能讀懂這本書，并能理解我對她的感情。
The days when they traveled together meant a lot to him.
2.關系副詞where
關系副詞 where 在所引導的定語從句中作地點狀語，先行詞通常是表示地點的名詞或代詞。有一些雖然不是表示地點的名詞或代詞，而是跟介詞in搭配的一些名詞 ，用來表示在某種情形或情況時如situation, stage, case, condition, point等，也用關系副詞where引導。
The accident had reached a point where both their parents are to be called in. 事情發(fā)展到如此程度，不得不請雙方家長來一趟了。
After graduation she reached a point in her career where she had to accept the challenge of life.
They will fly to Washington, where they plan to stay two or three days. 他們要乘飛機去華盛頓，在那里他計劃要再待兩一天。
3.關系副詞why
關系副詞why在所引導的定語從句中作原因狀語 先行詞通常是reason,可換成for which。
The reason why /for which her brother is fired is that he is often late for work.
4.關系副詞that與先行詞 way
that可以作關系副詞，只是在幾個較為特殊的情況下才用。way作為行詞時，表示用某種方法與介詞in搭配，如 in this way,在定語從句中用in which,而 in which可用關系副詞that代替，由于此時的that在所引導的句中不作主語 ，所以又可省掉 ，那么就會有三個答案：in which,that或省掉。
The way (that/in which)he solved the problem is simple and effective.
他解決這個問題的方法簡單而有效。
What surprised me was not what he said but the way (in which/that)he said it. 使我吃驚的不是他說的什么是他說話的方式。
