解题思路1.通读全句。
首先判断是什么句型。
2.题干句如果是疑问句式，将其转化为陈述句式。
3.分析从句的句子结构，在定语从句中，缺什么，就补什么：缺主或宾语，用关系代词；缺状语，用关系副词4. 注意标点符号和题干中是否存在并列连词and, but等。
常见考点1.指物时只用that 或which 的情况2.介词+关系代词3.Whose 用法及转换形式4.as 与which的区别5.指人时that 与who的区别6.如何判断用关系副词还是关系代词7.定语从句中的主谓一致问题1. This is all ____ I know about the matter.A. thatB. whatC. whoD. whether2. Is there anything else _____ you require?A. whichB. thatC. whoD. what3. The last place _____ we visited was the Great Wall.A. whichB. thatC. whereD. it4. He talked happily about the men and books_____ interested him greatly in the school.A. whichB. thatC. itD. whom5. There is no dictionary _____ you can find everything.A. thatB. whichC. whereD. in that6. Is oxygen the only gas _____ helps fire burn?A. thatB. /C. whichD. it7. Which was the hotel _____ was recommended to you?A. thatB. whichC. whereD. it考点一:that 与which 的区别1. 先行词为all, little, much, everything, nothing, something, anything等不定代词2.先行词被all, little, much, every, no, 等修饰时.3先行词被序数词或最高级修饰先行词前有序数词(the first),形容词最高级(the best), the last, the very, the only 等时。
4. 先行词为人和物的组合5.若主句中有疑问代词who 或者which，为了避免重复, 关系代词不要再用who, which，而用that。
考点二:介词+关系代词提醒: 介词﹢关系代词引导的定语从句, 关键是判断介词的选择.方法一:根据从句中动词与先行词习惯搭配方法二:根据从句中动词与先行词的逻辑关系注意：关系代词在定语从句中作介词宾语时，从句常常由“介词+关系代词”引出。
此时关系代词只能用which 或whom; 不可用that 或who 代替但遇固定词组时，介词一般紧跟词组主体，不作前置Is this the book (which/that) you arelooking for ?1.The man __________ you shook hands just now is our headmaster.2.The room __________ my family live used to be a garage.3.Did you find the pen _________ I wrote just now?4.Did you find the composition ______ I wrote just now?考点三Whose 用法及转换形式1. whose引导定语从句，其后应紧跟名词，构成名词短语。
That‟s the child whose father is a teacher2.whose引导定语从句，其先行词不仅可以指人，还可以指物。
Do you know the woman whose husband is a doctor?This is a book whose cover is green.3. whose的先行词指物时, 可用of which代替,但词序不同，即whose+名词=the +n + of which=of which + the + n.He lives in the room whose window faces south.= He lives in the room, the window of which faces south.= He lives in the room, of which the window faces south.考点四：as与which引导的定语从句两者均可引导非限制性定语从句，有时可以互换，但下列情况多用as。
1. 当与such或the same连用时，一般用as。
e.g. Such books as you tell me are interesting.I have the same plan as you.2. as 引导的从句可以放在句首, as 本身有“正如…..正象…”之意，与之连用的词有know, see, expect, announce, point out 等。
e.g. As we all know, the earth is round.1. ______ was natural, he married Jenny.A. WhichB. ThatC. ThisD. As2. Such signs _____ we use in the experiment ______Greek letters.A. as, areB. as, isC. that, areD. that, is3. I passed him a large glass of whisky, _____ hedrank immediately.A. thatB. asC. whichD. who4. She is very good at dance, ____ everybody knows.A. thatB. whichC. whoD. as5. ______ has been said above, grammar is a set ofdead rules.A. WhichB. WhatC. ThatD. As6. We do the same work _____ they do.A. whichB. asC. thanD. like考点五: that 与who的区别在anyone, those, he/she/I / they作先行词时, 用”who” 代替“that”.Anyone _____breaks the law is punished.Those _____ break the law are punished.He _____ breaks the law is punished.考点六:考点6如何判断用关系副词还是关系代词?I will never forget the day _____ I first went to school.I will never forget the day __________ we spent in Beijing.The house __________ we visited is being repaired now.The house ______ Luxun once lived is being repaired now.考点七:定语从句中主谓一致问题定语从句中的动词在人称和数方面应该与它的先行词保持一致。
1.I am not one who ______afraid of difficulty．2.Don…t choose me, who _______not fit for this job．3. This is one of the best books _______.A. that have ever been writtenB. that has ever been writtenC. that has writtenD. that have written4. She is not the only one of the girls ___ well in class.A. which singsB. who singC. who singsD. who to singAs 的用法This is the same pen ______I lost yesterday.A. asB. thatC.the oneD. A&B比较：...the same pen as I lost.表示这支笔与我不见的那支很像，不一定就是... the same pen that I lost.则表示这支笔就是我不见的那支.1______is mentioned above, the number of the students in senior high school is increasing.A. WhichB. AsC. WhatD. That2 I‟ll tell you _____ he told me last night.A. all whichB. all whatC. that allD. all3 How do you like the book?It‟s quite different from _____ I read last month.A. thatB. whichC. the oneD. the one what名词/代词/数词+of+ which /whom引导非限定性定语从句.I bought some books from the bookstore, five______were English novels.A. of whichB. whichC. thatD. in which翻译1. 这就是那位帮助我的人。
This is the man who helped me.2. 你昨天见到的史密斯夫人是我的一个朋友。
Mrs Smith whom you met yesterday is a friend of mine.3. 你认识一个叫王雨的人吗？Do you know the man whose name is Wang Yu?4. 我收到的那份礼物是我哥送的。