2. _____ is often the case, we have worked out the production plan.

A. Which 　　　 B. When 　　　 C. What D. As

例1、If a shop has chairs ____ women can park their men, women will spend more time in the shop.

A. that 　　　　　 B. which　　　　　　　　　　　 C. when　　　　　　　　 D. where

答案为D

[解析]　 关系副词where 连接定语从句，其中where= in/ on which。

例2、We will be shown around the city: schools, museums, and some other places, ________ other visitors seldom go.

A. what　　　　 B. which　　　　 C. where　　　　 D. when

答案为C。

[解析]　 这是一个定语从句，先行词是places，表示地点，非限定性定语从句中缺少状语，因此用where来引导定语从句，故要填where。这句话的意思是我们被带领着参观了这座城市的学校、博物馆和其他一些游人很少去的地方。　

例3、Alec asked the policeman _______ he worked to contact him whenever there was an accident.

A. with him　　　　 B. who　　　　 C. with whom　　　　 D. whom

答案为C。

[解析]　 这是一个定语从句，the policeman是先行词。work是不及物动词，“work with sb.”意为“与某人共事”，所以定语从句应为with whom he worked。这句话的意思是无论何时发生事故时，Alec要求与他一起工作的警察与他联系。

例4、Is this the reason _______at the meeting for his carelessness in his work?

A. he explained　　 B. what he explained 　

C. how he explained　　 D. why he explained

答案为A。

[解析]　 the reason后接定语从句。因为先行词the reason作explained的宾语，用that或which引导定语从句在从句中作宾语时省略。这句话的意思是这就是他在会议上对他为什么在工作上粗心大意的理由所作的解释吗?

例5、The film brought the hours back to me _____ I was taken good care of in that far-away village.

A. until　　　　 B. that　　　　 C. when　　　　 D. where

答案为C。

[解析]　 when引导定语从句(the hours的定语)，修饰先行词the hours,when在从句中作状语。这句话的意思是这部电影使我回忆起我在那偏远的村庄得到无微不至的照顾的时光。

例6、Have you seen the film “Titanic”, ________leading actor is world-famous?

A. its　　　　 B. it's　　　　 C. whose　　　　 D. which

答案选C。

[解析]　 这是一个定语从句，因为先行词the film “Titanic”和leading actors是所属关系，所以要填写whose。　

例7、Recently I bought an ancient Chinese vase, ________ was very reasonable.

A. which price　　　 B. the price of which　　 　C. its price　　 D. the price of　 whose

答案为B。

[解析]　 这是一个非限制性定语从句。根据句意可知之中的是花瓶的价格。在定语从句中表示“谁的”，可以这样表达，如：I live in the room whose windows face south(名词前没有冠词，用whose)=I live in the room the windows of which face south(如果名词前有冠词就用of which)。

例8、Carol said the work would be done by October, ________personally I doubt very much.

A. it　　　　 B. that　　　　 C. when　　　　 D. which

答案选D。

[解析]　 在这个非限制性定语从句中，关系代词which代替Carol所说的话。这句话的意思是“Carol说工作将在十月完成，我个人对此表示怀疑。”　

例9、It was an exciting moment for these football fans this year, _____ for the first time in years their team won World Cup.

A. that　　 B. while　　 C. which　　 D. when

答案为D。

[解析]　 从从句的意思：“这是他们多年来第一次赢得世界杯，”可推知，从句是对表示时间的先行词加以说明，先行词是主句中表示时间的名词an exciting moment this year，而非整个句子，故选D。

例10、John said he’d been working in the office for an hour, _____ was true.

A. he　　 B. this　　 C. which　　 D. who

答案为C。

[解析]　 该非限制性定语从句缺少主语，A、B两项不能用作关系代词，D项只能指代人，而该从句需要关系代词指代主句所说的事实用which。

第三节 巩固练习

Direction: Beneath each of the following sentences there are four choices marked A, B, C and D. Choose the best answer that completes the sentence.

1. The English play _____ my students acted at the New Year’s party was a great success.

A. for which B. at which 　 C. in which 　 D. on which

8、先行词表示地点时,有时用where,有时用that, which来引导定语从句.这时要根据从句的谓语动词是及物还是不及物，是及物的就用that(which)，否则用 where。

例如：This is the factory where we worked last year.

This is the factory that (which)we visited.

7、先行词被the only, the very, the same, the last 修饰时，只能用that。

例如：He is the only person that attended the meeting.

6、先行词被序数词或形容词最高级所修饰，只能用that。

例如：This is the most exciting film (that) I have ever seen.

5、先行词是不定代词:all, few, little, much, something, nothing, anything等，只能用that。

例如：That’s all (that)I want to say.

4、that在定语从句中可以指人或物,在从句中作主语或谓语动词的宾语.但不能放在介词后面作介词宾语。

例如：The letter that I received was from my father.

3、关系代词which在非限制性定语从句中不能放在句首,as既能在句首也能在句中.

2、关系代词whom, which, that 在限制性定语从句中作动词宾语或介词宾语,而该介词又位于从句末尾时,经常省略,但as一般不省略.

1、关系代词在从句中作主语时,从句的谓语动词的人称和数必须和先行词保持一致.