高一英语定语从句专项练习题
1. Don’t talk about such things of __________ you are not sure.
A. which
B. what
C. as
D. those
2. Is this the factory __________ you visited the other day?
A. that
B. where
C. in which
D. the one
3. Is this factory __________ some foreign friends visited last Friday?
A. that
B. where
C. which
D. the one
4. Is this the factory __________ he worked ten years ago?
A. that
B. where
C. which
D. the one
5. The wolves hid themselves in the places __________ couldn’t be found.
A. that
B. where
C. in which
D. in that
6. The freezing point is the temperature __________ water changes into ice.
A. at which
B. on that
C. in which
D. of what
7. This book will show you __________ can be used in other contexts..
A. how you have observed
B. what you have observed
C. that you have observed
D. how that you have observed
8. The reason is __________ he is unable to operate the machine.
A. because
B. why
C. that
D. whether
9. I’ll tell you __________ he told me last week.
A. all which
B. that
C. all that
D. which
10. That tree, __________ branches are almost bare, is very old.
A. whose
B. of which
C. in which
D. on which
11. I have bought the same dress __________ she is wearing.
A. as
B. that
C. which
D. what
12. He failed in the examination, __________ made his father very angry.
A. which
B. it
C. that
D. what
13. We’re talking about the piano and the pianist __________ were in the concert we attended last night.
A. which
B. whom
C. who
D. that
14. The girl __________ an English song in th e next room is Tom’s sister.
A. who is singing
B. is singing
C. sang
D. was singing
15. Those __________ not only from books but also through practice will succeed.
A. learn
B. who
C. that learns
D. who learn
16. Anyone __________ this opinion may speak out.
A. that againsts
B. that against
C. who is against
D. who are against
17. Didn’t you see the man __________?
A. I nodded just now
B. whom I nodded just now
C. I nodded to him just now
D. I nodded to just now
18. Can you lend me the novel __________ the other day?
A. that you talked
B. you talked about it
C. which you talked with
D. you talked about
19. Is there anything __________ to you?
A. that is belonged
B. that belongs
C. that belong
D. which belongs
20. ---- “How do you like the book?”
---- “It’s quite different from __________ I read last month.”
A. that
B. which
C. the one
D. the one what
21. Mr. Zhang gave the textbook to all the pupils except __________ who had already taken them.
A. the ones
B. ones
C. some
D. the others
22. The train __________ she was travelling was late.
A. which
B. where
C. on which
D. in that
23. He has lost the key to the drawer __________ the papers are kept.
A. where
B. in which
C. under which
D. which
24. Antarctic __________ we know very little is covered with thick ice all the year round.
A. which
B. where
C. that
D. about which
25. It’s the third time __________ late this month.
A. that you arrived
B. when you arrived
C. that you’ve arrived
D. when you’ve arrived
26. It was in 1969 __________ the American astronaut succeeded in landing on the moon.
A. that
B. which
C. when
D. in which
27. May the fourth is the day __________ we Chinese people will never forget.
A. which
B. when
C. on which
D. about which
28. We are going to spend the Spring Festival in Guangzhou, __________ live my grandparents and some relatives.
A. which
B. that
C. who
D. where
29. The hotel __________ during our holidays stands by the seaside.
A. we stayed at
B. where we stayed at
C. we stayed
D. in that we stayed
30. Is it in that factory __________ “Red Flag” cars are produced?
A. in which
B. where
C. which
D. that
31. It is the Suez Canal __________ separates Asia __________ Africa.
A. which, to
B. where, from
C. that, from
D. that, with
32. Under the bridge, however, almost directly below, __________ was a small canoe, with a boy in it.
A. there
B. where
C. it
D. which
33. He is not __________ a fool __________.
A. such, as he is looked
B. such, as he looks
C. as, as he is looked
D. so, as he looks
34. Is that the reason __________ you are in favour of the proposal?
A. which
B. what
C. why
D. for that
35. He must be from Africa, __________ can be seen from his skin.
A. that
B. as
C. who
D. what
36. He has two sons, __________ work as chemists.
A. two of whom
B. both of whom
C. both of which
D. all of whom
37. I, __________ your good friend, will try my best to help you out.
A. who is
B. who am
C. that is
D. what is
38. He is a man of great experience, __________ much can be learned.
A. who
B. that
C. from which
D. from whom
39. ---- Do you know the town at all?
---- No, this is the first time I __________ here.
A. was
B. have been
C. came
D. am coming
40. I don’t like __________ you speak to her.
A. the way
B. the way in that
C. the way which
D. the way of which
41. The two things __________ they felt very proud are Jim’s gold watch and Della’s hair.
A. about which
B. of which
C. in which
D. for which
42. The dinner was the most expensive meal we __________.
A. would have
B. have had
C. had never had
D. had ever had
43. Do you know which hotel __________?
A. she is staying
B. she is staying in
C. is she staying
D. is she staying in
44. There is only one thing __________ I can do.
A. what
B. that
C. all
D. which
45. Who can think of a situation __________ this idiom can be used?
A. which
B. that
C. where
D. in that
46. I have many books, some of __________ are on chemistry.
A. them
B. that
C. which
D. those
47. They were interested __________ you told them.
A. in which
B. in that
C. all that
D. in everything
48. The astronaut did many experiments in the spaceship, __________ much help for knowing space.
A. which we think it is
B. which we think are of
C. of which we think is
D. I think which is of
49. The great day we looked forward to __________ at last.
A. come
B. came
C. coming
D. comes
50. I like the second football match __________ was held last week.
A. which
B. who
C. that
D. /
参考答案：
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31—35 CABCB 36—40 BBDBA 41—45 BDBBC
46—50 CDBBC
初中英语定语从句专项练习题与答案详解(第2套) 1.The place _______interested me most was the Children's Palace. A. Which B. where C. what D. in which 2.Do you know the man _______? A. whom I spoke B. to who spoke C. I spoke to D. that I spoke 3.This is the hotel _______last month. A. which they stayed B. at that they stayed C. where they stayed at D. where they stayed 4.Do you know the year ______the Chinese Communist Party was founded? A. which B. that C. when D. on which 5.That is the day ______I'll never forget. A. which B. on which C. in which D. when 6.The factory ______we'll visit next week is not far from here. A. where B. to which C. which D. in which 7.Great changes have taken place since then in the factory _______we are working. A. where B. that C. which D. there 8.This is one of the best films _______. A. that have been shown this year B. that have shown C. that has been shown this year D. that you talked 9.Can you lend me the book ______the other day? A. about which you talked B. which you talked C. about that you talked D. that you talked 10.The pen ______he is writing is mine. A. with which B. in which C. on which D. by which 11.They arrived at a farmhouse, in front of ______sat a small boy. A. whom B. who C. which D. that 12.The engineer ______my father works is about 50 years old. A. to whom B. on whom C. with which D. with whom 13.It there anyone in your class ______family is in the country? A. who B. who's C. which D. whose 14.I'm interested in ______you have said. A. all that B. all what C. that D. which 15.I want to use the same dictionary ______was used yesterday. A. which B. who C. what D. as 16.He isn't such a man ______he used to be. A. who B. whom C. that D. as 17.He is good at English, ______we all know. A. that B. as C. whom D. what 18.Li Ming, ______to the concert enjoyed it very much. A. I went with B. with whom I went C. with who I went D.I went with h im
一定语：修饰名词或代词的词、短语或从句称为定语。汉语中常用‘……的’表示。定语主要由形容词担任。此外名词、代词、数词、副词、介词短语以及动词不定式（短语）、分词也可以做定语。 a beautiful city; a bag full of money.注意：汉语的定语无论多长都放在被修饰词的前面，而英语中的定语则不然，是一个词时，放在被修饰词的前面，若是两个以上的词组、短语或从句则放在被修饰词的后面， thirty women teachers ; his father; the girl in red. the boy from America Our monitor is always the first student to enter the classroom. falling leaves; fallen leaves; the boy playing basketball; the book bought by my mother; a reading room; a swimming pool He is the man who you are looking for. 二：定义及相关术语 1．定语从句：修饰某一名词或代词的从句叫定语从句。定语从句一般紧跟在它所修饰的先行词之后。 2．先行词：被定语从句修饰的名词或代词叫先行词。 3．关系词：引导定语从句的词叫关系词。关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as等；关系副词有when, where, why. 1. I have an apple. An apple is red. I have an apple that/which is red. ↑↑ 先行词关系代词 2.I like some friends. Some friends like sports. I like friends who like sports. ↑↑ 先行词关系代词 3.I like music. The music is quiet. I like music that/which is quiet. ↑↑ 先行词关系代词 关系词通常有下列三个作用：A、引导定语从句，连接主从句；B、代替先行词；C、在定语从句中担当一个成分。 （二）关系代词引导的定语从句 1．who 指人，在定语从句中作主语。 The boys who are playing football are from Class One. Those who want to go to the museum must be at the school gate at 7 tomorrow morning. Yesterday I helped an old man who had lost his way. That is the teacher who teaches us physics. 2．whom 指人，在定语从句中做宾语，常可省略。 Mr Liu is the person ( whom ) you talked about on the bus. Li Ming is just the boy ( whom ) I want to see. The professor ( whom ) you are waiting for has come. The girl ( whom ) the teacher often praises is our monitor. 注意：关系代词whom 在口语或非正式文体中常可用who 来代替，也可省略。 The man ( whom / who )you met just now is my old friend. 3．Which 指物，在定语从句中做主语或宾语，做宾语时常可省略。 Football is a game which is liked by most boys. He likes to read books which are written by foreign writers. The house which is by the lake looks nice. This is the pen ( which ) he bought yesterday.
定语从句专项练习2018.1.16 1. The place _______interested me most was the Children's Palace. A. Which B. where C. what D. in which 2. Do you know the man _______? A. whom I spoke B. to who spoke C. I spoke to D. that I spoke 3. This is the hotel _______last month. A. which they stayed B. at that they stayed C. where they stayed at D. where they stayed 4. Do you know the year ______the Chinese Communist Party was founded? A. which B. that C. when D. on which 5. That is the day ______I'll never forget. A. which B. on which C. in which D. when 6. The factory ______we'll visit next week is not far from here. A. where B. to which C. which D. in which 7. Great changes have taken place since then in the factory _______we are working. A. where B. that C. which D. there 8. This is one of the best films _______. A. that have been shown this year B. that have shown C. that has been shown this year D. that you talked 9. Can you lend me the book ______the other day? A. about which you talked B. which you talked C. about that you talked D. that you talked 10. The pen ______he is writing is mine. A. with which B. in which C. on which D. by which 11. They arrived at a farmhouse, in front of ______sat a small boy. A. whom B. who C. which D. that 12. The engineer ______my father works is about 50 years old. A. to whom B. on whom C. with which D. with whom 13. It there anyone in your class ______family is in the country? A. who B. who's C. which D. whose 14. I’m interested in ______you have said. A. all that B. all what C. that D. which 15. I want to use the same dictionary ______was used yesterday. A. which B. who C. what D. as 16. He isn't such a man ______he used to be.
定语从句专项训练附详细参考答案 I 选择最佳答案: 1.The silk _______ is made in Hangzhou sells well. A. that B.who C. what D. / 2.The man_______today left this message for you. A.called B.has called C.whom called D.who called 3.Do you live near the building ______colour is yellow? A. that B.which C.whose D. its 4.He helped his father on the farm ______they lived. A. which B.that C.when D. where 5.I’m one of the boys_____never late for school. A.that is B.who is C.who are D.who am 6.All_____should be done has been done. A.what B.which C.that D.whatever 7.Jack told me everything _______he knew about it. A. what B.that C.which D.who 8.My father works in the factory ______this type of truck is made. A.in where B.in which C.from which D.of which 9.The school_______we visited last week was built in 1956. A./ B.where C.that D.both A and C 10.This is one of the best films_______I have ever seen. A.which B.that C.of which D.of that 11.In fact the Swede did not understand the three questions_______were asked in French. A.where B.who C.in which D.which 12.He paid the boy $10 for washing ten windows, most of ______ hadn’t been cleaned for at least a year. A.these B.those C.that D.which 13.His parents wouldn’t let him marry anyone ________family was poor. A.of whom B.whom C.of whose D.whose 14.All_______is needed is a supply of oil. A.the thing B.that C.what D.which 15.In the dark street ,there wasn’t a single person _____she could turn for help. A.that B.who C.from whom D.to whom 16.She heard a terrible noise,______brought her heart into her mouth. A.it B.which C.this D.that II 用适当的关系词填空： 1) I’ll never forget the day on ________ they met for the very first time last summer. 2) This is the place _________ he so often mentioned to me. 3) The only thing ________ interested him was that he could do anything _________ he wanted to. 4) “What a scientist! What wonderful invention!” he talked excitedly about Bill Gates and his Microsoft Company _________ is now a focus (焦点) of newspapers and television. 5) He is old, ________ fact is important in this case.
高一英语定语从句教案 一、基本概念 1. 定语从句： 修饰一个名词或代词的从句称为定语从句，一般紧跟在它所修饰的先行词后面。 2. 先行词： 被定语从句修饰的名词 3. 关系词： 引导定语从句的关联词成为关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as；关系副词有where, when, why。关系词常有3个作用：1）引导定语从句。2）代替先行词。3）在定语从句中担当一个成分。 二、关系代词和关系副词的意义及用法 指人：who, that,(指人常用who,不常用that) 主语 指物：which, that 指人：whom, who, that（who常用在在非正式和口语体中） 宾语(关系代词作宾语时常可省略) 关系代词指物：which, that 定语：whose （whose + n.=of which + n. ） 关系词 时间：when 关系副词----状语地点：where = 介词+ which 原因：why 解题技巧：关键看从句缺何种成分 三、例句练习讲解 1.Yesterday I helped an old man ＿lost his way.昨天我帮助了一位迷路的老人。 2.The man ＿you met just now is my friend. 你刚才见到的那个人是我的朋友。 3.This is the pen ＿he bought yesterday. 这是他昨天买的笔。 4.He has a friend ＿father is a doctor. 他有个父亲是医生的朋友。 注意：whose指物时，常用以下结构来代替，例： 门坏了的那间教室很快就会被修好。 The classroom whose door is broken will soon be repaired. The classroom the door of which is broken will soon be repaired. 你喜欢那本封面是黄色的书吗？ Do you like the book whose cover is yellow? Do you like the book the cover of which is yellow? 5.I still remember the day ＿I first came to this school.我仍然记得第一次来到这学校 的那一天。 6.Shanghai is the city ＿I was born. 上海市我出生的地方。 7.Please tell me the reason ＿you missed the plane. 请告诉我你错过航班的原因。 注意：关系副词引导的从句可以由“介词+which”引导的从句替换 8.易错题：This is the mountain village (which) I visited last year. I'll never forget the days (which) I spent in the countryside. 习惯上总把表地点或时间的名词与关系副词where, when联系在一起而做错题。
定语从句专项练习 一、单项选择 1.The old temple roof was damaged in storm is now under repair. A. where B. which C. its D. whose 2.He is one of those people _____ everybody will find _____ hard to please. A. that; being B. whom; / C. who; is D. which; to be 3.We are living in an age most of things are done on cell phones. A. which B. that C. whose D. when 4.Nowadays, more and more young ladies, figures most are fine enough, are going on a diet. A. who B. whose C. of whose D. of whom 5.Could you show me the mobile phone you'd like ________? A. to repair it B. repairing it C. to have repaired D. having it repaired 6.On her birthday, she received a nice present from her parents ________ a note was attached, saying "We love you so much." A. that B. to which C. in which D. which 7.The old bank, _____ appearance is not a pretty sight, is extremely beautiful on the inside. A. whose B. where C. when D. which 8.It rained this morning, _____ actually didn't bother me because I like walking in the rain. A. what B. when C. where D. which 9.I keep the picture where I can see it every day, reminds me of the days in my hometown. A. that B. which C. who D. when 10.Newly released data point to an increase in technology use among children some worry is changing the very nature of childhood. A. why B. which C. who D. where 11.Mandela was generous with his time, Elias was grateful. A. to which B. for which C. which D. to whom 12.There is no simple answer, is often the case in science. A. when B. that C. as D. where 13.It is the third time that she has won the race, has surprised us all. A. that B. where C. which D. what 14.I shall never forget the day ________ Shen Zhou V was launched. A. when B. that C. which D. where
英语定语从句专项训练100(附答案) 一、定语从句 1．–Why are you so worried? -I’ve lost the watch ______ my dad bought me on my birthday. A．what B．who C．whose D．which 【答案】D 【解析】 【分析】 【详解】 句意：——你为什么如此担心？——我把那块我生日时爸爸买给我的手表弄丢了。考查定语从句，先行词是watch表示物，故关系代词只能用which或that；what不引导定语从句；who的先行词是人；whose表示所属；故选D。 2．That was his first invention. It was a machine ________ clothes. A．that used to wash B．which was used to washing C．which got used to washing D．that was used to wash 【答案】D 【解析】 【详解】 句意：那是他的第一个发明。那是一台用来洗衣服的机器。本题考查的是be used to do sth. “被用于做某事”的用法，而不是be/get used to doing sth. “习惯于做某事”的用法，排除 B/C；再由That was his first invention.可知，本题是过去时，因此在that引导的定语从句中，应该用一般过去时的被动句。was used to wash被用来洗衣服，语境是：那是一台被用来洗衣服的机器。故选D。 3．The leaders from eight countries attended the Shanghai cooperation organization summit in Qingdao got the welcome of the Chinese people. A．whom B．what C．who D．which 【答案】C 【解析】 【详解】 句意：出席上海合作组织青岛峰会的8国领导人受到中国人民的欢迎。考查关系代词辨析。what不是关系词，可排除。whom和who都用于先行词是人时，但whom用作宾语，who用作主语或宾语；which用于先行词是物时。本句先行词The leaders是人，可排除which；关系词在从句中做主语，可排除whom。根据句意结构和语境，可知选C。 4．– Do you like the weekly talk show The Readers on CCTV? –Sure. It’s a great TV program can develop the habit of reading.
高中英语定语从句专项练习题 1. Don’t talk about such things of __________ you are not sure. A. which B. what C. as D. those 2. Is this the factory __________ you visited the other day? A. that B. where C. in which D. the one 3. Is this factory __________ some foreign friends visited last Friday? A. that B. where C. which D. the one 4. Is this the factory __________ he worked ten years ago? A. that B. where C. which D. the one 5. The wolves hid themselves in the places __________ couldn’t be found. A. that B. where C. in which D. in that 6. The freezing point is the temperature __________ water changes into ice. A. at which B. on that C. in which D. of what 7. This book will show you __________ can be used in other contexts.. A. how you have observed B. what you have observed C. that you have observed D. how that you have observed 8. The reason is __________ he is unable to operate the machine. A. because B. why C. that D. whether 9. I’ll tell you __________ he told me last week. A. all which B. that C. all that D. which 10. That tree, __________ branches are almost bare, is very old. A. whose B. of which C. in which D. on which 11. I have bought the same dress __________ she is wearing. A. as B. that C. which D. what 12. He failed in the examination, __________ made his father very angry. A. which B. it C. that D. what 13. We’re talking about the piano and the pianist __________ were in the concert we attended last night. A. which B. whom C. who D. that 14. The girl __________ an English song in the next room is Tom’s sister. A. who is singing B. is singing C. sang D. was singing 15. Those __________ not only from books but also through practice will succeed. A. learn B. who C. that learns D. who learn 16. Anyone __________ this opinion may speak out. A. that againsts B. that against C. who is against D. who are against 17. Didn’t you see the man __________? A. I nodded just now B. whom I nodded just now C. I nodded to him just now D. I nodded to just now 18. Can you lend me the novel __________ the other day? A. that you talked B. you talked about it C. which you talked with D. you talked about
高中英语定语从句讲解及练习 定语从句是高中重点知识，也是高考常考点，大家也不容易掌握，这篇文章主要教你关系代词引导的定语从句 关系副词引导的定语从句判断关系代词与关系副词限制性和非限制性定语从句等内容，有例题讲解定语从句在句中做定语，修饰一个名词或代词，被修饰的名词词组或代词即先行词。定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。 关系代词有：who, whom, whose, that, which等。 关系副词有：when, where, why等。 18.1 关系代词引导的定语从句 关系代词所代替的先行词是人或物的名词或代词，并在句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。 1）who, whom, that 这些词代替的先行词是人的名词或代词，在从句中作主语和宾语。例如： Is he the man who/that wants to see you? 他就是你想见的人吗？（who/that在从句中作主语） He is the man whom/ that I saw yesterday. 他就是我昨天见的那个人。（whom/that在从句中作宾语） 2）whose 用来指人或物，（只用作定语, 若指物，它还可以同of which互换）。例如： They rushed over to help the man whose car had broken down.那人车坏了，大家都跑过去帮忙。 Please pass me the book whose （of which）cover is green.请递给我那本绿皮的书。 3）which, that所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等。例如： A prosperity which / that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。（which / that在句中作宾语） The package （which / that）you are carrying is about to come unwrapped. 你拿的包快散了。（which / that在句中作宾语） 18.2 关系副词引导的定语从句 关系副词可代替的先行词是时间、地点或理由的名词，在从句中作状语。 1）关系副词when, where, why的含义相当于\"介词+ which\"结构，因此常常和\"介词+ which\"结构交替使用。例如： There are occasions when （on which）one must yield.任何人都有不得不屈服的时候。 Beijing is the place where（in which）I was born.北京是我的出生地。 Is this the reason why （for which）he refused our offer?这就是他拒绝我们帮助他的理由吗？ 2）that代替关系副词，可以用于表示时间、地点、方式、理由的名词后取代when, where, why和\"介+which\"引导的定语从句，在口语中that常被省略。例如： His father died the year （that / when / in which）he was born.他父亲在他出生那年逝世了。 He is unlikely to find the place （that / where / in which）he lived forty years ago. 他不大可能找到他四十年前居住过的地方。 18.3 判断关系代词与关系副词 方法一：用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如： This is the mountain village where I stayed last year. 这是我去年呆过的山村。 I'll never forget the days when I worked together with you.我永远不会忘记与你共事的日子。 判断改错： （错）This is the mountain village where I visited last year. （错）I will never forget the days when I spent in the countryside. （对）This is the mountain village （which）I visited last year. （对）I'll never forget the days （which）I spent in the countryside. 习惯上总把表地点或时间的名词与关系副词where, when联系在一起。此两题错在关系词的误用上。 方法二：准确判断先行词在定语从句中的成分（主、谓、宾、定、状），也能正确选择出关系代词/关
定语从句专项练习 1. Nearly all the streets are in straight lines, ________ from east to west. Those ________ run from north to south are called avenues. A. running; that B. run; who C. running; who D. run; that 2. This is the case ________ he’s had all h is money stolen. A. when B. where C. that D. on which 3. Mr. Smith will pay a visit to Beijing this autumn, ________ we will enjoy the Olympic Games in 2008. A. where B. when C. which D. how 4. The artist will not paint people or animals but he will paint anything ________ . A. that the little girl asks him B. the little girl asks him to C. for the little girl to ask him D. what the little girl asks him 5. —How did you get in touch with the travel agent, Robin? —Oh, that’s easy. I surfed the Internet and then called one ________ the telephone number is provided. A. which B. in which C. of which D. whose 6. October 15 th is my birthday, ________ I will never forget. A. when B. that C. what D. which 7. The treatment will continue until the patient reaches the point ________ he can walk correctly and safely. A. when B. where C. which D. whose 8. There are several research centers in China ________ a certain disease called Bird Flu is being studied. A. which B. where C. when D. what 9. I hope that the little ________ I have been able to do does good to them all. A. which B. what C. that D. when 10. The time is not far away ________ modern communications will become widespread in Chin a’s vast countryside. A. as B. when C. until D. before 11. ________ is known to everybody, Taiwan is a part of China. We must unify it. A. It B. As C. Which D. What 12. I shall never forget the day ________ Shen Zhou V was launched, ________ has a great effect on my life. A. when, which B. that, which C. which, that D. when, that 13. The bread my wife makes is much better than ________ you can buy at a store. A. that which B. one that C. that of which D. this of which 14. There is no such place ________ you dream of in all this world. A. that B. what C. which D. as 15. The people, ________ had been damaged by the flood, were given help by the Red Cross. A. all whose homes B. all of whose homes C. all their homes D. all of their homes 16. The humans are destroying nature day by day, ________ of course, will cause severe punishment from it sooner or later. A. who B. when C. on which D. which 17. Is this research center ________ you visited the modern equipment last year? A. where B. that C. the one that D. the one where 18. Some pictures of the river brought the days back to the old ________ they swam in it.