高中英语定语从句课件
高中英语定语从句精品课件
先行词 关系词
从句
which、that 是关系代词，它在从句中代替先行词the building,
同时担任从句中的主语，也起连词的作用，把两个简单句连接 起来。
v 关系代词的使用取决于先行词，它们的关系非常密切，因为关系代词在
定语从句中代替主句中的先行词，所以它在一般情况下都跟在先行词之后， 而且它的 人称、数必须和先行词一致。
省.）
1) A plane is a machine that can fly. A plane is a machine which can fly.
2) Who was hurt in the accident that happened yesterday? Who was hurt in the accident which happened yesterday?
高中英语定语从句精品课件
Ø关系代词如何引导定语从句
q普通代词与关系代词的区别 I have a sister.She works in Shanghai.
代替 sister
I have a sister who/that works in Shanghai. q普通代词：只起代替的作用（如上例she) q关系代词： （如上例who/which）
3)Have you found the bike that you lost? Have you found the bike which you lost? Have you found the bike 省略 you lost?
高中英语定语从句精品课件
2. which 指物,在从句中作主语或宾语。作主语不 可省略;作宾语可以省略。
1. 除了代替先行词外， 2.它还在定语从句中担任一定的成分， 3. 同时连接先行词与它引导的定语从句。
高中英语 语法 定语从句(关系副词及介词加关系代词引导)课件(共23张PPT)
一、句型转换 1. I shall never forget the day when New China was founded.
I shall never forget the day _o_n__w_h_i_c_h_ New China was founded.
2. Is this the place where that traffic accident occurred?
has
not only built up my body but also shaped
my character. In addition, I have made
some friends
have the same interest
as me. All in all, I think students should
3. There are two buildings, the larger of _w__h_i_ch__ stands nearly a hundred feet high.
4. The English play in _w__h_ic_h__ my students acted at the New Year’s party was a great success.
⑵ The factory __th_a_t__ we visited yesterday is in the west of the city.
⑶ The factory _in__w_h__ic_h_ there are many modern machines is in the
west of the city.
⑶ The colorless gas is called oxygen, _in__w_h_i_c_h_ fires burn much better.
英语高中定语从句市公开课获奖课件省名师示范课获奖课件
【名师指津】 关系代词as旳选择
一、当先行词中有so, such等修饰语时； 如： This is so good a book as I can hardly tear myself away from. Never promise such things as you can’t achieve.
【什么是定语从句？】
Tom is the only student who has passed the driving test. They have prepared for everything that is needed in the party. The Smiths live in a house which was built more than 200 years ago.
Later，I met my second math teacher, from whom I learned a lot.
(1)定语从句：在复合句中作定语修饰主句中某一名 词或代词旳从句叫定语从句。
(2)先行词：被定语从句修饰旳词，叫做先行词。 (3)关系词：分为关系代词和关系副词，在从句中担当一定成 份。
【名师指津】
关系代词whose旳选择
The man whose wallet was stolen called for the police for help. The boy whose father is a teacher has been admitted to Oxford University.
高中英语定语从句公开课课件-(共25张PPT)(两节课内容)
What’s that which flashed in the sky just now?
3) 先行词本身就是that。
练一练：
The school inwhich he once studied is very famous. Football，which is very interesting game, is popular
所有格 whose whose,of which
❖ 最后，要确定关系代词的人称和数。
引导定语从句关系代词的用法：
11)A)Applalanneeisisaammaacchhininee. .
TThheemmaacchhininee ccaannflfyly..
A plane that can fly is a machine主. 语
2) The fish were not fresh.
We bought the fish.
The fish which we bought were not fresh. 宾语
which 指物,在从句中作 主语 、 宾语 .
who ，whom的用法:
1) The foreigner is from Canada. The foreigner visited our school yesterday.
1) She has been late again, ___a_s___ was
expected. 2) Tom has made great progress, _w__h_ic_h__ made us happy.
3. 在以which / who 为疑问词的特殊疑问句中
4.在there is / here is / it is 句型中
高中英语定语从句 课件(共23张ppt)
8. As many people as were present voted for the plan.
主语
Task2 参照task 1 中的有关内容，填写表格1：确定关系代词 的依据
关系代词 先行词（人、物） 在 从 句 中 所 作 的 成 分 （主语、宾语、定语）
that
人、物
主语、宾语
writing?
Point 2
宜用that不宜用which引导 定语从句的情况
1. 当先行词是all, little (少), few, much, any, everything, anything, nothing, none等不定代词或被这些词修饰时 2. 当先行词既包括人又包括物时 3. 当先行词被the only, the very, the last, the same 等修饰时 4. 当先行词被序数词或形容词最高级修饰时 5. 当主句是以who, which开头的特殊疑问句时
5. I know the person whose house was totally destroyed in the
earthquake.
定语
6. He lives in a house whose windows face south.
定语
7. Here is so big a stone as no one can lift.
holidays in Qingdao?
用that , when, why, where , which填空
1.I want to know the date, __w_h_e__n_you were born. 2.I have forgotten the date _th_a__t/_w_h__ic_h_ you told me. 3.Do you know the reason __w__h_y___ he is absent today? 4.That is the reason __w_h__ic_h_/_t_h_a_t_ I want to know. 5.This is the factory _w__h_e_r_e__ his father works. 6.This is the factory _t_h_a_t_/_w_h_i_c_h_ his father built.
高中英语复习之定语从句课件(共25张)
A. where B. which
C. what D. when
7. The book has helped me greatly in my daily
communication, especially at work ___D_____ a good
impression is a must.
A. which B. when C. as D. where
1. The Science Museum, ______A______ we visited during a
recent trip to Britain, is one of London's tourist attractions.
A. which
B. what C. that D. where
12．必须注意的问题： (1)关系词作主语时，从句中谓语的数。 (2)注意区别定语从句与强调句。 ①定语从句中关系词作从句成分，复合句。 ②强调句中it无意义，that/who不是引导词。 ③去掉it is/was和that/who后，如果句子意思讲得通则是 强调句，讲不通则不是。 It is the museum that/which we visited last year.(定语 从句) It was in the hotel that we stayed last night.(强调句)
9．whose作关系词既指人又指物，在从句中作定语。 Do you know Mr.Smith whose story is very moving? There is a room，whose window faces the river. 10．关系代词as在从句中作主语、宾语和表语。 (1)先行词被such和the same修饰，或句型as many(much)中，从句都用 as 引导。Such books as you bought are useful. The school is just the same as it was 10 years ago. 注意：①such...that...引导结果状语从句。如：They are such lovely children that we love them much。 ②the same...that...引导定语从句。如：I want to use the same tool that you used just now.
高中英语定语从句详解绝对经典课件
A. which
B. who
C. when
由Which 引导的定语从句，在句中做主语\ 宾语
14. All _____ is needed is a supply of oil.
A. which
Байду номын сангаас
B. that
C. what
15. Finally, the thief handed everything ____
( 宾语 )
1. who, whom, whose, that 用法区别. ① who 作定语从句的主语或宾语.
The man who is speaking at the meeting is a worker.
The man is a worker. 分解
The man is speaking at the meeting. 作主语
which 作定语从句的主语或宾语.
可省略
This is a truck which / that is made in
China.
作主语
I like the book (which / that) you bought
yesterday.
作宾语
3. 只能用that的情况
Tom is the cleverest boy that I have ever known.
found.
A. which
B. who C. what
that
12、The room in ___ there are many books is
mine. 介词提前时只能用 which
A. that
B. who C. which
13、This is the pen ____ he bought yesterday.
高中定语从句课件PPT(条理清晰)
常见关系词：that, which, who, whom, whose, when, where, why, as
先行词与关系词的联系
• 1）"先行词"与"关系词"的内在联系"先行词"与"关 系词"之间实质上是互等、互换的关系。也就是说， 关系词的作用就是将先行词所表达意义"代到"从 句中来起作用。例如：
二：先行词已有序数词或形容词的最高级或the last, the only等作定语时，例如：
This is the most impressive TV theater that has never been put on show before. 这是以前从未上演过的最有感染力的电视剧。
That is the only way that leads to your success . 那是通向你成功的唯一之路。
Do you know the man whom you just spoke to? 错误：I have no idea about the man whom wrote the article.
• 关系代词whose ：用于代替"表示人或物意义"的 先行词，在从句中作定语，往往与它所修饰的名 词一起构成一个名词短语在从句中担当成分。 Whose常表达"某人的、某物的"之意。例如：
• 2）“先行词”的意义决定“关系词”的选择“关 系词”的选择往往是由“先行词”自身表达的意 义，以及它在从句中的语法功能而决定的。例如：
• Some people who are successful language learners often fail in other fields.
高中定语从句语法讲解 优质课件
从句结构不完整，缺成分！用关系代词！
先行词+关系词+句子 定语从句的结构
关系代词
人：who whom that 物：which that xx的：whose
I like those books whose topics are about history.
先行词是物，关系代词作从句的定语， 译为“....的”,在这里是“书的（主题）”。
12. I’ll never forget the day _w_h_e_n_ she won the game.
Summary and Homework
listen to the music and find out all attributive clause:
#1 My Love -Westlife #2 Rhythm of the Rain - The Cascades #3 Valder Fields - Tamas Wells #4 All Too Well - Taylor Swift
I came to the city where you live.
①找出句中的先行词（时间/地点/原因），关系词和从句， ②判断从句结构是否完整。
I came to the city where you live. I will never forget the autumn when I met Tom. Tell me the reason why you like math!
This is the place that/whic（h we visited last time.）
从句缺少宾语，关系代词在从句中作宾语
This is the place where（we visited my grandparents last time.） 从句不缺少句子成分
高考英语专题定语从句课件共21张
This is the house the window of which faces south. This is the house of which the window faces south.
乐学
笃行
感恩
6.as 引导定语从句时的用法 as引导定语从句通常用于 the same .. as, such … as结构中 Such+ 名词+as…像。。。一样的，像。。。之类的 Such + as 像。。。一样的，像。。。之类的 The same+ 名词+as… 和。。同样的
定语从句
主讲人 Sophie
Tom has a book. The book is given by our English teacher. 定语从句 Tom has a book that is given by our English teacher. I still remember the day. On that day I first met her. 定语从句 I still remember the day when I first meet her.
人/物 物
主语 宾语 主语 宾语
人 人 人/物
主语 宾语 宾语 定语
人/物
主语 宾语
乐学
笃行
感恩
关系副词 When Where why
先行词 时间名词
在定语从句中的 成分
状语
地点名词
状语
原因 reason
状语
乐学
笃行
感恩
关系代词的使用
who, whom, whose, which, that, as
高中英语语法讲解定语从句课件(共53张PPT)
关系代词的实质
Join the following sentences:
The girl is Mary. We saw her yesterday.
The girl her we saw
yesterday is Mary.
关系代词的实质
Join the following sentences:
1.that 与which
1.This is the best TV _______ that is made in China. that he 2.The first museum _______ visited in China was the History Museum.
先行词被形容词最高级 或序数词修饰时，引导 定语从句多用that 。
引导定语从句用that .
1.that 与which 1.Who that _______ you have ever
know can do it better ?
Who做先行词时， 引导定语从句用 that
1.that 与which
1.Her bag, in ________ which she put all her money, has been stolen. which she 2.This is the ring on ________ spent 1000 dollars. 3.Xiao Wang , with ________ I went whom to the concert, enjoy it very mue is such a lazy man_____ nobody wants to work with______. A. as; him B. that; / C. as; / D. whom; him 2. Mrs. Black took the police back to____ place ____ she witnessed the robbery. A. the same; as B. the same; where C. the same ; that D. as the same; as
高中英语定语从句课件新人教版.ppt
1.从句位置及语序: 2.翻译方法: 3.构成
先行词 之后,用陈述式语序
“….的” 关系词
关系代词 关系副词
先行词和关系词的关系
1.A plane is a machine that can fly.
the machine = that
2.The boy who broke the window is called Tom.
及物动词
5.This is the reason __w_h_y_/_f_o_r_w__h_ic_h________ he was late.
6.This is the reason ___th__a_t/_w_h_i_c_h__________ he及g物av动e词.
如何判断从句动词是否及物？
▪ 让先行词作宾语，如果正确，就是及物的， 否则就是不及物的。
for the reasons =why
I don’t like the way that you speak.
in the way =that
关系副词实际上是介词＋先行词
几种易混的情况
1.I’ll never forget the days_w__h_e_n_/_i_n_w__h_ic_h_ we worked together.
whose =the student’s 关系词whose实际上是先行词的所有格
难用的 whose
▪ 在定语从句中，只有whose做定语。
▪ 使用whose时要注意：
▪ Whose+名词，名词前不能用冠词，但可以用
形容词。
The +N+of whom/which
▪ Whose+N
Of whom/which + the +N
高中英语定语从句公开课课件 (共25张PPT)
b. The mother made a promise _t_h_a_t_/w__h_ic_h__ pleased all her children.
from the south of China, enjoy rice very much.
7. Can you think of a situation _w_h_e_r_e_ this
idiom is used?
= in which
8. _A_s__ is often the case, teachers in our
几种易混的情况
1. I’ll never forget the days _w_h_e_n__/i_n_w__h_i_ch_ we worked together.
2. I’ll never forget the days _w_h_i_c_h_ we spent together. 及物动词
3. I went to the place _w_h_e_r_e_/_i_n_w__h_ic_h_ I worked ten years ago.
dead rules.
A. Which B. What C. That
D. As
5. We do the same work _____ they do.
A. which B. as C. than
D. like
考点四：什么情况下 whose和of which不能互换?
1. 先行词是人时，只能用whose, 不能用of which It’s the first time the boy _w__h_o_s_e_ father is an engineer has paid a visit to our school.
高中英语定语从句——关系代词引导的定语从句(共57张PPT)
• 你想要一个你可以把一切都告诉他的朋友吗？
关系代词的作用
• 1.连接主从句 • 2.代替先行词 • 3.在从句中充当成分
关系代词的选择
①先行词： 人
物
②关系词： who、whom whose that which
1，ቤተ መጻሕፍቲ ባይዱho
The boys are TFboys. The boys are singing. The boys who are singing are TFboys.
The man who is running is Captain Jack.
先行词
关系代词
①先行词：被定语从句修饰的词叫先行词。一般分为人和物。
②关系词：引导定语从句的连接词称为关系词，其中who、 whom,whose,that, which称为关系代词
It was felt in Beijing, which is more than two hundred kilometers away.
extreme.
作主语
The book ( which ) my father read is interesting.
作宾语
Which 先行词是物，在定语从句中做主语或宾语，做宾 语时常可省略。
The apple is mine.
?
The apple which is red is mine.
The apple which is green is yours. The apple which is red is small.
The apple which is green is big.
4. that
I have a friend. The friend likes listening to classical music.
高中英语定语从句 (共43张PPT)
1 定语从句（二）
一、只使用that的情况：
7. 先行词为数词时。 Look at the books on the bookshelf. You can see the two that you bought me for my birthday. 瞧书架上那些书。你可以看到我过生日时你买的那两本。
a brave boya boy with Nhomakorabealasses
a boy who is brave and wearing glasses
3 定语从句
2. 什么成分可以作定语？
1.My brother likes playing basketball. 我兄弟喜欢打篮球。（代词作前置定语）
2.There are few women workers in the factory. 这个工厂女工很少。（形容词、名词作前置定语）
1
定语从句（二）
1 定语从句（二）
一、只使用that的情况：
1.先行词为all, few, little, much, the one, something, anything, everything, nothing等时。 We'll do all that we can to protect the endangered plants and animals. 我们将尽我们的最大努力来保护那些濒危的动植物。 There is much that I want to tell you. 我有很多想要告诉你的话。 Is there anything that I can do for you? 有什么我可以帮你的吗？
5.先行词指人或物且在定语从句中作定语，用whose或of whom/of which引导。 This is the scientist whose achievements are well known. = This is the scientist, of whom the achievements are well known. = This is the scientist, the achievements of whom are well known. This is the house whose window broke last night. = This is the house, of which the window broke last night. = This is the house, the window of which broke last night.
高中英语语法定语从句(23张PPT)-经典通用课件资料
Love is like a gust of wind which/that blows away.
2021/10/10
3
有一个美丽的小女孩，她的名字叫做小薇
There is a beautiful girl. The girl’s name is Xiao Wei.
There is a beautiful girl whose name is Xiao Wei.
7
☆ Love is like a gust of wind which/that blows away. ☆ There is a beautiful girl whose name is Xiao wei. ☆ Liyuan Peng is a very famous singer who is also Chairmn xi’s wife. ☆ Janeiro is a marvelous city where Olympics Games will be held. ☆ The airplane 370 lost contact on March 8th when is the Women’s day.
☆ Love is like a gust of wind which/that blows away. ☆ There is a beautiful girl whose name is Xiao wei. ☆ Liyuan Peng is a very famous singer who is also Chairmn xi’s wife. ☆ Janeiro is a marvelous city where Olympics Games will be held. ☆ The airplane 370 lost contact on March 8th when is the Women’s day.
高中定语从句ppt课件
先行词是all, much, something, one
总结词
当先行词是 "all","much","something","one"等表示 泛指或总称的词汇时，从句的引导词通 常使用that。
Hale Waihona Puke VS详细描述例如，在句子"All that glitters is not gold."中，先行词"all"表示泛指，因此从 句的引导词使用了"that"。
先行词被形容词最高级，only, last, just修饰时，引导词用that。
先行词在从句中作补语时，引导 词用that。
先行词为all, much, something, nothing, this, that时，引导词用 that。
先行词既有人又有物时，引导词 用that。
先行词是序数词或被序数词修饰 时，引导词用that。
影响句子的完整性。
用法
通常用逗号与主句隔开，用关系代 词（which、whom、whose等） 或关系副词（when、where、 why等）引导。
例句
My sister, who is a doctor, often works late at night.（我的姐姐是 一名医生，经常工作到深夜。）
which的用法
01
02
03
04
在非限定定语从句中，先行词 指人时，引导词用who或 which。指物时，引导词用 which。
在限定定语从句中，先行词指 人时，引导词用that或who。
指物时，引导词用which。
在从句中缺主语、宾语、表语 或定语时，引导词用which。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
高中英语定语从句课件高中英语定语从句课件多媒体教学课件是指根据教师的教案，把需要讲述的教学内容通过计算机多媒体(视频、音频、动画)图片、文字来表述并构成的课堂要件。
下面小编为大家带来，仅供参考，希望能够帮到大家。
高中英语定语从句课件Ⅰ.定义定语从句，起形容词的作用，在句中常用来修饰名词或代词。
被修饰的词称为先行词,引导定语从句的词称为关系词, 关系词的`作用一是放在先行词与定语从句中间起引导作用;二是在意义上代替先行词,并在从句中充当一个成分。
其中关系代词：who, whom, whose, which, that, as;关系副词：when, where, why。
eg. She is the girl who sings best of all.The pen which my uncle gave me is missing.He lives in a house whose windows face south.The factory where my father works is in the east of the city.Perhaps the day will come when people will be able to breathe clean air in cities.Ⅱ.关系代词1. 先行词是人，作主语，关系代词用who, thateg. He is a man( ) never leaves today’s work till tomorrow.The boy ( ) is standing there is my cousin.2. 先行词是人，作宾语，关系代词用 whom, who, that,eg. Here is the man ( ) you’ve been expecting to meet.The man ( ) you met yesterday is Mr. Smith.3. 先行词是物，作主语，关系代词用which, thateg . The train ( ) has just left is for Guangzhou.Children like to read books ( ) have wonderful pictures.4. 先行词是物，作宾语，关系代词用which, that,或省略eg. The book ( ) you borrowed yesterday is really interesting.The pen ( ) my uncle gave me is missing.5. 先行词是人、物，作定语，关系代词用whoseeg. He is the professor ( ) name was Jackson.China, ( ) population is the largest in the world, is developing very fast.Ⅲ. 关系副词1. 先行词是表示时间的名词，在定从中作时间状语，关系代词用wheneg. I can’t remember the date ( ) he went abroad.I’ll never forget the day ( ) I joined the army.2. 先行词是表示地点的名词，在定从中作地点状语，关系代词用where; 其中注意表示抽象概念的地点名词，如，situation、stage、degree、point等表示方面或程度时，也需用whereeg. This is the village ( ) Uncle Wang once lived.They have reached the point ( ) they have to separate with each other.He’s got himself into a dangerous situation ( ) he is likely to lose control over the plane.3. 先行词是reason，在定从中作原因状语，关系代词用whyeg. I don’t know the reason ( ) he was late.None of us know the reason ( ) Tom was absent from the meeting.4.引导定语从句的关系副词也可以用“适当介词+ which”来代替。
eg. October 1, 1949 was the day when ( = ) the People’s Republic of China was founded.This is the factory where(= ) we worked a year ago.I don’t believe the reason why (= ) he was late for school.Ⅳ. 关系代词that & which的区别:⒈ 只用that的情况① 先行词为all, everything, anything, nothing, little, much等不定代词时。
eg. There is nothing ( ) can prevent him from doing it.② 先行词被any, only, few, no, very, little 等修饰时。
eg. This is the very book ( ) I’m looking for.③ 先行词被形容词最高级或序数词修饰时。
eg. The first place ( ) they visited in Guilin was Elephant Trunk Hill.This is the best film ( ) I have ever seen.④ 先行词既有人又有物时。
eg. He talked about things and persons ( ) they remembered in the school.⑤ 先行词被the only, the very修饰时。
eg. Mr. Smith is the only foreigner ( ) he knows.⑥ 句中已有who或which,为了避免重复时。
eg. Who is the man ( ) is standing beside Tom?⒉ 不能用 that的情况：① 引导非限制性定语从句;eg. He had failed in the maths exam , ( ) made his father very angry.② 介词 + 关系代词。
eg. This is the room in( ) my father lived last year.Ⅴ. as引导定语从句时的用法(as 相当于that & which)① as引导限制性定语从句通常用于the same … as, such … as结构中。
eg. This is the same book ( ) I lent you.Such machines ( ) are used in our workshop are made in China.② as引导非限制性定语从句既可放在主句之前，也可放在主句之后，位置灵活，用来修饰整个句子。
通常用下列句型：as is known to all, as is said, as is reported, as is announced, as we all know, as I expect 等。
eg. ( ) I expected, he got the first place again in this mid-term examination.Taiwan, ( ) we all know, belongs to China.Ⅵ. 限制性定语从句和非限制性定语从句的主要区别:限制性定语从句: 一般紧跟在先行词后面,不用逗号把从句与先行词分隔开来。
使先行词的意思十分明确,成为特定的人或物,是句子中不可缺少的成分,少了它句子就会失去意义不能成立,或意思不清楚,不能说明问题。
通常译为定语。
非限制性定语从句: 通常由逗号与句子其他成分隔开。
只是对先行词作进一步的说明,没有它句子仍能成立,意思仍很清楚。
通常译为并列的句子。
eg. I was the only person in our office ( ) was invited.(去掉定语从句，意思就不完整)Tom’s father, ( ) is over sixty, still works hard day and night.(整个句子可分成两句来翻译)Ⅶ. 分隔定语从句即先行词与关系代词、副词之间被介词短语，同位语，谓语等分隔开来。
此种定语从句，在选择关系词时，要注意找准先行词。
eg. There is an expression in his eyes ( )I can’t understand.I was the only person in my office ( ) was invited to the important ball.I suggest you choose someone I think ( ) is very kind and friendly.选择填空：1. It was April 29,2011 Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.A. thatB. whenC. sinceD. before2.)Gutter oil is illegally recycled cooking oil, contains chemicals that are harmful to the human body and can even cause cancer.A. itB. whichC. whereD. that3. Between the two parts of the concert is an interval, the audience can buy ice-cream.A. whenB. whereC. thatD. which4. The old town has narrow streets and small houses are built close to each other.A. theyB. whereC. whatD. that5. Whatever is left over may be put into the refrigerator, it will keep for two or three weeks.A. whenB. whichC. whereD. while6. English is a language shared by several diverse cultures, each of ------- uses it somewhat differently.A. whichB. whatC. themD. those7. A bank is the place they lend you an umbrella in fair weather and ask for it back when it begins to rain.A. whenB. thatC. whereD. there8. She has a gift for creating an atmosphere for her students ------ allows them to communicate freely with each other.A. whichB. whereC. whatD. who9 Ted came for the weekend wearing only some shorts and a T-shirt, ------ is a stupid thing to do in such weather.A. thisB. thatC. whatD. which10. She showed the visitors around the museum, the construction ------ had taken more than three years.A. for whichB. with whichC. of whichD. to which。