常见关系副词的基本用法when, where, why
关系副词(when, where, why)引导的定语从句,它们后面的句子完整，只缺状语，它们都可以等于 介词+ which , 其中 why 只等于 for which.
1. When 指时间，在定语从句中作时间状语。其先行词是表时间的名词（如：time, day, week, tear, month, etc.）
He came last night when I was out.
2. Where 指地点，在定语从句中作地点状语。其先行词是表示地点的名词，如：place, school, factory, room, etc.
This is the place where I was born.这这是我出生的地方。
3. Why 指原因，在定语从句中作原因状语。先行词为reason 时，可用for which指代；当关系词在从句中作主语或宾语时，则用which或that 引导。如：
The reason why + 定语从句 is that + 表语从句 （……的原因是……）
The reason why / for which / (that) he didn't come to school was that he was ill. 他没来上学的原因是他病了。
I don't believe the reason (that/which) he gave me.
He asked me the reason that can explain my success.
(That’s because + 原因) 那是因为……
He got up late. That's why he was late.(表语从句)
（That’s why + 结果） 那是……的原因
4. 当先行词为way时，定语从句常用that, in which,或省略引导词。way后的定语从句的引导词不用时较多。但如果关系词在句中作主语或宾语时，则用which或that 引导。如:
This is the way (that) /（in which）I do such things.
比较: Please do the experiment in the way （that/which）I have shown you.
1. We will put off the picnic in the park until next week, ____ the weather may be better.
A. that B. where C. which D. when
2. It is a truly delightful place, ________ looks the same as it must have done 100 years ago with its winding streets and pretty cottages..
A. as B. where C. that D. which
3. He wrote many children’ s books, nearly half of____ were published in the 1990s.
A. whom B. which C. them D. that
4. The boss of the company is trying to create an easy atmosphere ______ his employees enjoy their work.
A. where B. which C. when D. who
5. As the smallest child of his family, Alex is always longing for the timehe should be able to be independent.
A. which B. where C. whom D. when
6. China Today attracts a worldwide readership,_______ shows that more and more people all over the world want to learn about China.
A. who B. whom C. that D. which
7. Some experts think reading is the fundamental skill upon______school education depends.
A. it B. that C. whose D. which
8. I borrow the book Sherlock Holmes from the library last week, ______ my classmates recommended to me.
A.who B. which C. when D. Where
9. A company ______profits from home markets are declining may seek opportunities abroad.
A. which B. whose C. who D. why
10. I now, we have raised 50.000 pounds for the poor children, ______ is quite unexpected.
A. that B. which C. who D. it