1.The letter is from my sister, ______is working in Beijing.
A. which B. that C. whom D. who
2.In our factory there are 2,000 workers, two thirds of ____are women.
A. them B. which C. whom D. who
3.You're the only person ______I've ever met ______could do it.
A. who;/ B./; whom C. whom;/ D./; who
4.I lost a book, ______I can't remember now.
A. whose title B. its title C. the title of it D. the title of that
5.Last summer we visited the West Lake, ______Hangzhou is famous in the world.
A. for which B. for that C. in which D. what
6.I have bought such a watch _______ was advertised on TV.
A. that B. which C. as D. it
7.I can never forget the day _______ we worked together and the day ______ we spent together.
A. when; which B. which; when C. what; that D. on which; when
8.The way ______he looks at problems is wrong.
A. which B. whose C. what D./
9.This is the reason ______he didn't come to the meeting.
A. in which B. with which C. that D. for which
10.This machine, ______for many years, is still working perfectly.
A. after which I have looked B. which I have looked after
C. that I have looked after D. I have looked after
11.The reason ______he didn't come was ______he was ill.
A. why; that B .that;why C. for that;that D.for which;what
12.He is working hard, ______will make him pass the final exam.
A.that B.which C.for which D.who
13.That is not the way ______I do it.
A./ B.which C.for which D.with which
14.I have two grammars, ______are of great use.
A. all of which B. either of which C. both of that D. both of which
15.I want to use the same tools _______used in your factory a few days ago.
A. as was B. which was C. as were D. which
16.My neigh bours used to give me a hand in time of trouble, _______ was very kind of them.
A. who B. which C. that D. it
17.This is the magazine _______ I copied the paragraph.
A. that B. which C. from that D. from which
18.He is not such a man _______ would leave his work half done.
A. that B. which C. who D. as
19. You can depend on whatever promise _______ he makes.
A. / B. why C. when D. whose
20. Smoking, _______ is a bad habit, is, however, popular.
A. that B. which C. it D. though
答案及解析：
1.D.who引导非限制性定语从句，who作从句的主语。
2.C.two thirds of whom 即：two thirds of the 2，000 workers。
3.D.先行词person后有两个定语从句，第一个从句省略了关系代词whom.因为，whom作从句中met的宾语，可以省略。第二个从句who could do it.who在从句中作主语，不可省略。
4.A.whose title引导非限制性定语从句，whose title也可以说成the title of which.
5.A.for which 引导定语从句，使用介词for，是来自于从句中的固定短语 be famous for“以……而闻名”。
6.C.当先行词被such修饰时，引导定语从句的关系代词要用as。 As在本从句中作主语。
7.A.两个先行词the day都是表示时间的名词，但第一个空白处要填的关系词在从句中作状语，因此要用关系副词when。第二个空白处要填的关系词在从句中作动词spent的宾语，因此要用关系代词which或that来引导定语从句。
8.D.在way、distance、direction等词后的定语从句中，常用that来代替“in (或其他介词)+which”、when或where，而that常可省略。
9.D.for which在定语从句中作原因状语，可用why来替代。
10.B.which I have looked after 构成一个非限制性定语从句。
11.A.The reason why… was that….已成为一种固定句型，这一句中的why和that不能随意换位，也不能将that改成because，尽管that这个词在译文中可能有 “因为”的含义。
12.B.非限制性定语从句常用which引导，which表示前句话的整个含义。
13.A.解释见28题。
14.D.主句中的two表明不能选A。从句中的are表明不能选B。both of which用来引导非限制性定语从句。
15.C.as引导定语从句时通常构成such…as或the same…as固定搭配，其中such和same修饰其后的名词，as为关系代词，指代其前的名词引导定语从句。as在从句中可以作主语、表语或宾语。本题中as作从句的主语。
16.B.非限制性定语从句常用which引导，which表示前句话的整个含义。
17.D.
18.D.解析见35题。
19.A.he makes是定语从句，从句前省略了关系代词that。
20. B. which is a bad habit 非限制性定语从句。
1.The letter is from my sister, ______is working in Beijing.
A. which B. that C. whom D. who
2.In our factory there are 2,000 workers, two thirds of ____are women.
A. them B. which C. whom D. who
3.You're the only person ______I've ever met ______could do it.
A. who;/ B./; whom C. whom;/ D./; who
4.I lost a book, ______I can't remember now.
A. whose title B. its title C. the title of it D. the title of that
5.Last summer we visited the West Lake, ______Hangzhou is famous in the world.
A. for which B. for that C. in which D. what
6.I have bought such a watch _______ was advertised on TV.
A. that B. which C. as D. it
7.I can never forget the day _______ we worked together and the day ______ we spent together.
A. when; which B. which; when C. what; that D. on which; when
8.The way ______he looks at problems is wrong.
A. which B. whose C. what D./
9.This is the reason ______he didn't come to the meeting.
A. in which B. with which C. that D. for which
10.This machine, ______for many years, is still working perfectly.
A. after which I have looked B. which I have looked after
C. that I have looked after D. I have looked after
11.The reason ______he didn't come was ______he was ill.
A. why; that B .that;why C. for that;that D.for which;what
12.He is working hard, ______will make him pass the final exam.
A.that B.which C.for which D.who
13.That is not the way ______I do it.
A./ B.which C.for which D.with which
14.I have two grammars, ______are of great use.
A. all of which B. either of which C. both of that D. both of which
15.I want to use the same tools _______used in your factory a few days ago.
A. as was B. which was C. as were D. which
16.My neigh bours used to give me a hand in time of trouble, _______ was very kind of them.
A. who B. which C. that D. it
17.This is the magazine _______ I copied the paragraph.
A. that B. which C. from that D. from which
18.He is not such a man _______ would leave his work half done.
A. that B. which C. who D. as
19. You can depend on whatever promise _______ he makes.
A. / B. why C. when D. whose
20. Smoking, _______ is a bad habit, is, however, popular.
A. that B. which C. it D. though
答案及解析：
1.D.who引导非限制性定语从句，who作从句的主语。
2.C.two thirds of whom 即：two thirds of the 2，000 workers。
3.D.先行词person后有两个定语从句，第一个从句省略了关系代词whom.因为，whom作从句中met的宾语，可以省略。第二个从句who could do it.who在从句中作主语，不可省略。
4.A.whose title引导非限制性定语从句，whose title也可以说成the title of which.
5.A.for which 引导定语从句，使用介词for，是来自于从句中的固定短语 be famous for“以……而闻名”。
6.C.当先行词被such修饰时，引导定语从句的关系代词要用as。 As在本从句中作主语。
7.A.两个先行词the day都是表示时间的名词，但第一个空白处要填的关系词在从句中作状语，因此要用关系副词when。第二个空白处要填的关系词在从句中作动词spent的宾语，因此要用关系代词which或that来引导定语从句。
8.D.在way、distance、direction等词后的定语从句中，常用that来代替“in (或其他介词)+which”、when或where，而that常可省略。
9.D.for which在定语从句中作原因状语，可用why来替代。
10.B.which I have looked after 构成一个非限制性定语从句。
11.A.The reason why… was that….已成为一种固定句型，这一句中的why和that不能随意换位，也不能将that改成because，尽管that这个词在译文中可能有 “因为”的含义。
12.B.非限制性定语从句常用which引导，which表示前句话的整个含义。
13.A.解释见28题。
14.D.主句中的two表明不能选A。从句中的are表明不能选B。both of which用来引导非限制性定语从句。
15.C.as引导定语从句时通常构成such…as或the same…as固定搭配，其中such和same修饰其后的名词，as为关系代词，指代其前的名词引导定语从句。as在从句中可以作主语、表语或宾语。本题中as作从句的主语。
16.B.非限制性定语从句常用which引导，which表示前句话的整个含义。
17.D.
18.D.解析见35题。
19.A.he makes是定语从句，从句前省略了关系代词that。
20. B. which is a bad habit 非限制性定语从句。