1、 I shall never forget the day __ we spent swimming in that beautiful lake.
2、⑦time做先行词,前面如果有序数词或 last 来修饰时,定语从句用 that 来引导或省略；如果没有序数词或 last 来修饰时,既可用 when 也可用that来引导.
3、⑤ 先行词是“人”或“物”，关系词在从句中作定语表所属关系，用whose引导定语从句
4、where指地点，在定语从句中作状语，相当于in等＋which。例如：
5、who指人，是主格，在定语从句中作主语；whom是宾格，在定语从句中作宾语；whose是所有格，在定语从句中作定语。例如：
6、 His car was stolen.
7、as引导非限定性定语从句时,意为“这一点、这件事”,常与 see, hope,expect,know,guess等动词搭配；而which引导非限定性定语从句时与主句有一种因果关系,可译为“所以……”.
8、whom引导的定语从句,whom在从句中作宾语,修饰表示人的先行词,
9、 He paid the boy ￥10 for washing ten windows, most of __ hadn't been cleaned for at least a year.
10、 The school ____ we visited last week was built in 1956.
11、③ 先行词是物且关系词在定语从句中作主语，用that,which.
12、当先行词是下列不定代词或被它们修饰时much，little，none，all，few，every(thing)，any(thing)，no(thing) 等时，通常用that。例如：
13、 Is the river __ through that town very large?
14、为避免与which重复使用时，要用that”
15、考研英语 考研英语定语从句
16、 ___ is know to everybody, the moon travels round the earth once every month. (NMET)
17、0ctober l，1949 was the day on which（=when）the People’s Republic of China was founded.
18、5先行词在主句中作表语，或关系代词在从句中作表语时。例如：
19、 The word“ write” has the same pronunciation __ the word “fight”.
20、4先行词中既有人又有物时。例如：Peter and his car that disappeared mysteriously in London in 1987 appeared mysteriously in New York in 1993.彼得和他的小轿车1987年在伦敦神秘地失踪，后来于1993年又神秘地出现在纽约。
21、Who - Refers to People
22、 Jack old me everything __ he knew about it.
23、whose引导的定语从句,whose在从句中作定语,修饰表示人或物的先行词.
24、形式上，非限制性定语从句往往用逗号隔开。
25、that指物，有时也指人，在定语从句中作主语或宾语。指物时，它的'用法和which大致相同。例如：
26、 I, __ your best friend, will try my best to help you.
27、翻译时，限制性定语从句可译为一句(较短的一般译为"的"字结构)；而非限制性定语从句可译为两句。
28、 看先行词（被定语从句修饰的词）
29、② 先行词是人且关系词在从句中作宾语，用whom/that
30、 whom 指人, 作宾语.
31、 Alec asked the policeman ____ he worked to contact him whenever there was an accident.
32、 where 指地点, 作状语.
33、 The reason was not acceptable
34、 You should put the book ___ you took it.
35、 Wang Fei is the boy __ I think is the most diligent in our class.
36、Why- Refers to reason
37、 ___ leaves the room last should lock the door.
38、 Finally, the thief handed everything ____ he had stolen to the police.
39、which指物，在定语从句中作主语或宾语。例如：
40、 I gave him a warning, ____ he turned a deaf ear.
41、 He explained the reason at
42、 I am looking for a man.
43、 All __ is needed is a supply of oil.
44、 The room __ window is still bright is our head teacher's office.
45、 There’s a feeling in me ___ we’ll never know what a UFO is. (上海2002)
46、 He is the boy.
47、that 和which 都可以修饰表示物的先行词, 但是下列情况只能用that.
48、Where可以替代抽象的地点状语、when可以代替抽象的时间状语，引导定语从句
49、在非限制性定语从句中只能使用关系词which/who，不能使用关系词that：
50、 I am reading the book.
51、关系副词，一般替代从句中的状语成分，而状语的确定主要是看前面主句
52、⒈定语从句试题，主要考查使用关系词的能力。
53、 I knew the reason.
54、 Who is the boy __ is reading under the tree over
55、 All ____ should be done has been done.
56、关系代词whom, which在定语从句里作介词的宾语时，介词一般放在先行词与关系代词之间。例如：
57、 which引导的定语从句,which在从句中做主语,也可做宾语,或介词的宾语,
58、 The two old friends talked about the persons and places __ impressed them most.
59、① 先行词是人且关系词在从句中作主语，用who/that
60、Where -Refers to Place
61、when指时间，在定语从句中作状语。例如：
62、 The book is written by Tomas
63、20世纪TOP100英文小说【英文版】
64、 Recently I bought an ancient Chinese vase, ___ was very reasonable. (上海99)
65、由when 引导的定语从句,修饰表示时间的先行词,when为关系副词,
66、When=what time -Refers to Time
67、 Around the factory, there are a lot of people __ the smoke from it does great harm.
68、 This house belongs to my brother.
69、2先行词为数词或被序数词(含last)修饰时。例如：
70、 He arrived half an hour late, __ made us unhappy.
71、在三大类从句中，为什么感觉状语从句理解起来最为简单，而名词性从句又比定语从句简单？
72、 Caral said the work would be done by October, __ personally I doubt very much. (MET99)
73、 I have three uncles, two of ___ are teachers.
74、 What- Refers to something you don't know
75、 The weather turned out to be very good, ____ was more than we could expect. (MET94)
76、 Tom told the teacher the reason ___ he was late again.
77、由 who, 引导的定语从句,who在从句中做主语(口语中也可做宾语),
78、④. 先行词被the only, the very, the last, the same 等修饰时.
79、 I will go to shanghai with
80、③. 先行词被all, any, every, few, little, no, some 等不定代词修饰时.
81、先行词本身是that时。例如：
82、 She heard a terrible noise, __ brought her heart into her mouth.
83、直接放在介词后作宾语时，通常要用which：
84、①. 先行词为不定冠词all, few, little, much, everything, nothing 等.
85、 as引导非限定性定语从句并在从句中作主语时,其后面的谓语动词大多数必须是连系动词.如果从句谓语动词是行为动词,则必须用which.
86、 I have some letters to write __ put off.
87、 China is not the same country __ it was twenty years ago.
88、 My father works in the factory __ this type of truck is made.
89、 For this reason he was late
90、1先行词为all，everything, nothing, something, anything, much little, few, none, the one等时。例如：
91、Why引导的定语从句,why做原因状语.
92、关系代词which有时指整个前面一句话。这时关系代词前面有逗号，定语从句是附加的说明；which的意思相当于and this。例如：
93、 when 指时间,作状语.
94、 His parents wouldn't let him marry anyone __ family was poor.
95、 This is the house.
96、②. 先行词被序数词或形容词的最高级所修饰时.
97、关系代词可以作定语从句的主语、宾语或定语。
98、 After living in Paris for fifty years, he returned to the small town __ he grew up as a child.
99、 He came at a time.