定语从句思维导图易考易错点总结定语从句的用法较为复杂，高考除了单独考查定语从句外，还常常结合句式结构、时态等来综合考查。
纵观近年各地高考试题，不难发现其考点主要包括：1．考查如何正确选择关系词解题思路：找出从句，确定被修饰词，即先行词→将先行词代入定语从句，判断先行词在定语从句中充当什么成分:若作主语、宾语、表语、定语，则选择关系代词；若作状语则选关系副词。
2．考查whose的用法whose可以指代人或物，在定语从句中作定语，后跟名词。
指物时，whose＋名词＝名词＋of which＝of which＋名词。
如：The classroom whose door/the door of which/of which the door is broken is on the second floor.3．考查as/which引导的非限制性定语从句尤其要重视which，as引导的非限制性定语从句和that，what引导的主语从句的区别。
4．考查定语从句中的主谓一致现象。
如：I, who am your close friend, will try my best to help you whenever you are in trouble.5．考查“介词＋关系代词”引导的定语从句“介词＋关系代词”引导的定语从句，关系代词指人时用whom，指物时用which，不能用that。
关系代词作定语时也可用whose。
如：The teacher in front of whose house stands a tall tree is very patient with his students.同时还要注意包含复杂介词或代词短语的定语从句与并列句的区别。
如：(1)He loves his parents deeply, both of whom are very kind to him.(定语从句) (2)He loves his parents deeply and both of them are very kind to him.(并列句)此外，“介词＋which＋名词”结构也是一个较为特殊的结构。
如：He was very ill, in which case(＝and in this case) we sent him to hospital first. 6．考查一些特殊的先行词(1)当situation, point, position, case, activity, scene, job, race, stage, degree 及period, festival, occasion（场合/时机）等出现时，要注意具体情况具体分析。
这类词作主语、宾语或表语时，用关系代词that或which；作状语时，用关系副词where，when 或“介词＋which”。
(2) the way 做先行词，当它在从句中作方式状语时，其后的关系词用in which/that/省略；当它作主语/宾语时，其后的关系词用which/that。
7．考查定语从句、强调句、时间状语从句等的区别(1)It was this small village where we got to know each other.(定语从句)(2)It was in this small village that we got to know each other.(强调句)(3)It was 1914 when the war broke out.(时间状语从句)导入：. She is a beautiful girl.She is a girl who is beautiful .（一）定语从句定义1.定语从句：在复合句中，修饰某个____或_____的句子（做这个名词或代词的定语）叫定语从句，定语从句一般放在被修饰的名词或代词后面，2.先行词：被修饰的名词或代词叫做定语从句的先行词。
3.用来引导定语从句的词叫做关系词。
关系代词的种类：关系代词____,______,______,_______,_______,______关系副词： _____, where, why4.定语从句结构：先行词+关系词+定语从句。
1. There she saw a wall of water that was quickly advancing towards her.2. In Japan, someone who sees another person making the gesture will think it means money.3. Oprah Winfrey is a black woman whose rise to fame is an inspiring story.（二）定语从句分类限定性定语从句：从句对先行词进行必要的描述或说明，对先行词起修饰限定作用，从句与先行词紧密相连缺少它，则句义显得不完整，一般不用逗号隔开。
非限定性定语从句：对先行词进行补充说明，解释，它与先行词关系松散，用逗号隔开。
man who gave me this book is Tom .(________),who is reading a book ,is my classmate (_____________)（三）关系代词先找关系词，看先行词指的是什么。
2）看关系词在从句中所充当的成分。
1. who指人，在定语从句中作_____语，口语中可做_____语；that 也可指人，但多用who. . The man _____ is sitting under the tree is a German .The students ______ speaks German best comes from China .The man ________you want to see is here .2. Whom指_____，在句中做____，可省略，但在做介词的宾语是只能用whom,不能用who.关系代词前有介词时不能省略。
. The man (_____) you look for has left .I know the girl (_______) the teacher is speaking to .I know the girl to ________ the teacher is speaking .3. whose, 作定语，可指人或物=the +n +of which=of which the +n. Everyone heplps the child _____parents are dead.They are the lazy students ____homework wasn’t handed in .针对练习2011全国卷I)The prize will go to the writer ________ story shows the most imagination.A. thatB. whichC. whoseD. what2011四川卷）The school shop, ________ customers are mainly students, is closed few the holidays.A. whichB. whoseC. whenD. where3.〖10山东〗That’s the new machine ______ parts are too small to be seen.A. thatB. whichC. whoseD. What4.〖10陕西〗The old temple _______ roof was damaged in storm is now under repair.A. whereB. whichC. itsD. whose5.〖10北京〗Children who are not active or diet is high in fat will gain weight quickly.A. whatB. whoseC. whichD. that6.〖10重庆〗In china, the number of cities is increasing ________development is recognized across the world.A. whereB. whichC. whoseD. that指___或______，多指物，作_____语（不能省略）或_____语（可省略）. He is the finest comrade_____ has helped us .This is a plant _______ grows in the north .5. which ,指_____，在句中做主语（不能省略），或宾语（可省略）。
. This is a plant _______ grows in the north .常用that不用which的情况只能that用做关系代词的情况（共9种类型）。
1.当先行词是all, everything, anything, nothing, much, little, none, one等不定代词时，只用that。
歌诀助记：不定代词这路货，全用that准没错。
Pay attention to everything _____ I do.2.当先行词被序数词或形容词最高级修饰时，只用that。
歌诀助记：先行词前被限定，千万不要用which.This is the best novel (______) have read.3.如果出现两个或两个以上的先行词，并同时兼指人和物时，关系代词用that。
歌诀助记：两项并列人与物，引导定从用that.They were talking about the person and things ______they remembered in school.4.当先行词被the only, the last, the very, the same等等修饰时。
This is the last time ______I shall give you a lesson.5.在疑问词which开头的特殊疑问句中,为了避免重复只用that。
Which of the students ______ knows something about history.6. 当先行词被All, every, no, some, any, little, much等修饰时，只用that。