定语从句：
（一）基础：引导词---who, which, that, whom,
练习1.I like cities___________are quiet and clean. 2.I prefer students _________are hard- working.
3.I hate TV shows _________ are noisy and boring.4.The music __________ is gentle and quiet attracts me a lot.
5.The food __________tastes delicious is not always healthy.
6.Those boys ___________ are playing basketballs over there are from Class Fifteen.
7.The books ____________ are written by Lu Xun are worth reading.
8.The town ___we visited last week is much larger than before.9.The book ___ he bought is very interesting.
（二）特例：只用that的情况
1先行词被___________或___________所修饰，或本身是______________________时，只能用 that，
2.被修饰的先行词为 ________________________________________________等不定代词时, 只能用 that.
3.先行词被 _____________________________________________等词修饰时，只能用 that，而不用 which。
4.先行词里同时含有______________________，如I can remember well the persons and some pictures that I saw in the room.
5. 以______________________引导的特殊疑问句，只能用that.如： Who is the girl that is crying?
练习1. I am interested in everything___ is about the 2006 World Cup.
2. Is there anything___I can do for you? 3. This is the very bike ______I lost
4.To my surprise, he gave me nothing __ I need. 5.This is the best dictionary __ I have ever used.
6. He was the first person _______passed the exam.
7.He talked happily about the men and books________interested him greatly.
（三）whose 1. The student ______father works in the factory is sitting there.
2. I like the rooms ______windows face south.3. This is the desk ______legs were broken.
4The woman ___ umbrella you took is angry about it.5.Here comes a girl ___ handwriting is the best .
6The banana __skin is green can’t be eaten.7That tall tree _ leaves are yellow is very old.
（四）从句谓语单复数由先行词确定，时态由从句时间状语决定，不必跟主句保持一致。
1-He is one of the boys who ____ (doesn’t, don’t) finish doing homework.
2-I like films which ____(be) exciting and interesting.
3-Children who often ____(eat) junk food are easy to become fat and unhealthy.
4-That boy who _____(run) fastest is from our class.
5Those boys who ____ playing the guitar are from our school. (be)
6The trees which _____ (be) watered yesterday belong to them. 7The man who ____ over there is our teacher.(stand) 8Those boys who ____ playing the guitar are from our school. (be)
9Mr. Brown is one of the foreign experts _______ _________ (work) in China.
10I’m one of the boys ______ ________(like) English best.
(五)“介词＋关系代词”注意： 介词的选用要考虑：
A.与先行词的搭配关系
1）I will never forget the day __________ I joined the army.
2) I will never forget the days ______ I worked here.
3) I will never forget the year ____________ my son went to college.
B. 与谓语动词的搭配习惯
1）Have you found the book ________I paid 29 dollars?
2）Have you found the book ________I spent 29 dollars?
3) Have you found the book _____________we learnt a lot?
4) Have you found the book _______she often talks?
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