1、关系副词引导的非限制性定语从句定语从句可以由关系副词when, where, why引导，关系副词在定语从句中作状语。I. When 引导定语从句的用法1. 当先行词是表示时间的名词（如moment, time, day, year等），且关系词在从句中作时间状语时，定语从句用when引导。2. When可以换成“介词+which”。I still remember the day when (=on which) we met each other on the train.提醒：当先行词是表示时间的名词时，既可以用when引导定语从句，也可用that，which引导定语从句，关键要看时间在
2、从句中作什么成分。Do you still remember the days which we spent together in the countryside.when引导的定语从句和时间状语从句区别关系词定语从句时间状语从句whenWhen引导定语从句时表示时间的名词在从句中作主语或者宾语。Winter is the year when the day is short while the night is long.When引导状语从句时为从属连词。When前面没有表示时间的名词。此时，when不能用“介词+which”代替。When引导的时间状语从句可位于主句之前或主句之后。I w
3、ant to be a teacher when I grow up.II. Where 引导定语从句的用法当先行词表示具体地点的名词（如place, room, mountain, airport等）或表示抽象地点的名词（case, state, condition, point, situation等），且关系词在从句中作地点状语，定语从句用where引导。He gets into a situation where (in which) it is hard to tell what is right or wrong.提醒：当先行词表示地点的名词，如果关系代词在从句中做定语或者宾语，则
4、用that或which引导定语从句。His father works in a factory which/ that makes radio parts.where引导的定语从句和时间状语从句区别关系词定语从句时间状语从句whereWhere引导定语从句时表示地点的名词在从句中作主语或者宾语，其在句中为关系副词，其前有一个表示时间的名词。Where引导的定语从句只能位于主句之后或句中，不能位于句首。He stood in front of the house where he grew up.Where引导状语从句时为从属连词。Where引导地点状语修饰主句中的谓语动词，where前面没有表
5、示地点的名词。此时where不能替换为“介词+which”。We should go where we are need.III. Why引导定语从句的用法当先行词是表示原因的名词reason, 且关系词在从句中作原因状语，定语从句用why引导，且只能引导限制性定语从句。Why = for whichThis is the reason why (for which) he left in a hurry.提醒：若先行词为reason，且关系词在定语从句中不作状语，而是充当主语或宾语，则用that或which引导定语从句。The reason that he told me yesterday
6、 is a lie.练习填空题1. We have entered into an age _ dreams have the best chance of coming true.2. The exact year _ Angela and her family spent together in China was 2008.3. Willian Hastie once suggested that history informs us of past mistakes _ we can learn without repeating them.4. There are several r
7、easons _ school uniforms are a good idea. First of all, uniforms help the school look smart.5. However, there are a number of other reasons _ might explain why you want to garden.6. Self-driving is an area _ China and the rest of the world are on the same starting line.7. Their child is at the stage
8、 _she can say individual words but not full sentences.8. After I arrived, Tom took me to see the house _ I would be staying.9. The town we visited last month is the one _ the famous painter was born.10. Tony will never forgot those days _ he lived in China with his mother, which has a great effect o
9、n his life.11. The reason _ he was late was that something was wrong with his bike on the way.12. Is this the reason _ he gave at the meeting for his carelessness in his work?13. He wrote a letter _ he explained what had happened in the accident.14. Its helpful to put children in a situation _ they
10、can see themselves differently.15. It was the middle of the night _ my father woke me up and told me to watch the football game.16. Jack didnt tell me the reason _ he was so upset.17. Fathers Day is a festival _ which sons and daughters will show their love and respect for their father.18. The schoo
11、l _ his sister works is a key middle school in Jiangsu Province.19. He gets into a situation _ it is hard to tell what is right or wrong.20. We have reached a point _ a change is needed.选择题1. I still remember the year _ we got together to celebrate the anniversary.A. which B. that C. when D. in that
12、2. Where did you meet him while in Beijing? It was in the hotel _I stayedA. thatB. which C. when D. where3. Many people who had seen the film were afraid to go to the forest when they remembered the scenes _ people were eaten by the tiger.A. in which B. by which C. which D. that4. Were just trying t
13、o reach a point _ both sides will sit down together and talk. A. where B. that C. on which D. which5. I can think of many cases _ students obviously knew a lot of English words and expressions but couldnt write a good essay.A. why B. which C. as D. where练习参考答案填空题1. where2. that3. from which4. why5. which6. where7. where8. where9. where10. when11. why12. which13. in which14. where15. when16. why17. in 18. where19. where20. where选择题1-5：CDAAD
