■限制性定语从句与同位语从句的区别
关系副词引导限制性定语从句中的关系词有跟他们含义相应的先行词，而引导同位语从句时则没有与他们含义相应的先行词。如：
Sorry, I’ve forgot the day when we met for the first time. 抱歉，我记不起我们第一次见面的日子了。(定语从句，先行词the day 与when含义相应)
I’ve no idea when we met for the first time. 我不知道我们第一次是什么时候见面的。(同位语从句，idea与when没有任何联系)
■定语从句与时间语状语从句的区别
当定语从句的引导词与时间状语的连接词都是when时，定语从句修饰、限制、说明时间名词，只能放在先行词的后面；而时间状语从句说明动作发生的情况，并且可以放在主句的前面。如：
Do you know the time when the class is over? 你知道下课的时间吗？(定语从句)
It was already five o’clock when the class was over. —When the class was over, it was already five o’clock. 当课结束时，已经是五点钟了。(时间状语从句)
■定语从句与地点状语从句的区别
当定语从句的引导词与地点状语的连接词都是where时，定语从句修饰、限制、说明地点名词；而状语从句说明动作发生的地点，where没有对应的地点名词或代词。如：
This is the place where we used to live a few years ago. 这就是几年前我们常居住的地方。(定语从句)
Let’s go where we can find a better job. 我们到我们能找到更好工作的地方去吧。(地点状语从句)
■定语从句与强调句型的区别
定语从句对名词或代词的修饰和限制，关系词可能是that, which, as, who, but, 另一方面，句子中的It有所指；而强调句型是对某部分加强语气，而强调语气的连接词只能是that, who，并且句子中的It 没有任何意义；一般比较明显，而有时就难以区别，还需要根据上下文的语境来判断。如：
It is a book that he wants.
它究竟是强调句型还是定语从句，就要从语境上来考察。如果它是用来回答What is this / that? 这样的问题，意思是：它是一本他想要的书。句子显然是定语从句。如果是用来回答What does he want?这样的问题，那么意思是：他想要的是一本书。显然，句子是强调句型。
■定语从句与结果状语从句的区别
定语从句中的关系词在从句中还要做某种成分，因而从句成分不完整；而结果状语从句中的连接词不作句子任何成分，因此句子成分完整。如：
It is such an interesting book as we all like. 它是我们大家都喜欢的如此有趣的书。(定语从句)
It is such an interesting book that we all like it. 它是一本如此有趣的书，我么大家都喜欢它。 (结果状语从句)
比较：It is such an interesting book that we all like. 强调句型。意思是：我们大家都喜欢的是一本如此有趣的书。
■定语从句与独立主格结构的区别
定语从句一般有关系词、主谓结构完整；而独立主格结构没有关系词、也没有谓语动词。如：
The book being very interesting, we all like it. 由于这本书有趣，我们大家都喜欢它。
The book which / that is very interesting was published last year. 这本有趣的书是去年出版的。
1. It was in the garden of his old house he grew up he dug up a pot of gold.
A.that;that B.where;where C.where;that D.that;where
2．—Where did you meet him while in Beijing?
—It was in the hotel I stayed．
A．that B．which C．when D．where
3．--- Where did you meet the famous actress?
--- It was in the supermarket we went shopping last Sunday.
A．which B．that C．where D．there
4.—Where did you get to know her?
—It was on the farm we worked.
A.that B.there C.which D.where
5. Some great people said it was their primary school teachers and their lessons they were fond of influenced their whole lives.
A.which;that B.that;which C.which;which D.that;that
6. It was Benazir Bhutto，former Pakistan Prime Minister，was leaving the rally that the suicide bomb happened， the world felt sorry.
A.when;for which B.as;which C.since;for which D.after;which
7. —On the contrary，I think it is the mother，rather than her children， to blame.
—I agree with you.
A.what is B.that is C.who are D.that are
8.I wonder if it was in the bookstore I bought some books I lost the keys.
A.that;that B.where;where C.where;that D.that;where
9.It was in the stone house was built as a school by local villagers the boy finished his primary school.
A.which;that B.that;where C.which;which D.that;which
10.It was on October 15 the Communist Party 17th Congress began， was the biggest political meeting in five years.
A.which;that B.what;which C.which;who D.that;which
11. Is it Dave Williams runs a website he encourages people to protect the environment?
A.who;that B.that;which C.who;where D.that;as
与强调句的区分
1答案 C 2答案 D 3答案 C 4 答案 D解析 where在句中引导定语从句，并在从句中作地点状语。
5答案 D 6答案 A 7答案 B 8答案 C 9 答案 A 10答案 D 11答案 C
高考英语试题中定语从句与强调句陷阱题详解
http://edu.QQ.com 2008年12月08日17:09 英语学习网 我要评论(3)
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1. The factory was built in a secret place, around _________ high mountains.
A. which was B. it was C. which were D. them were
【陷阱】容易误选A或B，将A、B中的 which 和 it 误认为是其后句子的主语。
【分析】最佳答案是C，around which were high mountains 是一个由“介词+which”引出的非限制性定语从句，而在该从句中，主语是 high mountains，around which 是表语，所以句子谓语应用复数were，而不是用单数 was。请做以下类例题目（答案均为C）：
(1) Yesterday we visited a modern hospital, around _________ some fruit shops.
A. which is B. it is C. which are D. them are
(2) The murder happened in an old building, beside _________ the city police station.
A. which are B. it is C. which is D. them are
(3) Next month we’ll move to a new building, next to _________ a nice restaurants where we can have Chinese food.
A. which are B. it is C. which is D. them are
2. A man with a bleeding hand hurried in and asked, “Is there a hospital around _________ I can get some medicine for my wounded hand”
A. that B. which C. where D. what
【陷阱】容易误选 B，认为 around 是介词，选 which 用以代替前面的名词 hospital，在此用作介词 around 的宾语。
【分析】最佳答案为C。以上语法分析并不算错，但问题是，照此分析，此句的意思即为：有没有这样一个医院，我在它的附近可以买药治我的手伤？这样的语境显然有点不合情理，因为人们通常是在医院里面治伤，而不是在医院附近治伤。此题选 C 的理由是：句中的 around 不是介词，而是副词，意为“在附近”；其后的 where 引导定语从句用以修饰其前的地点名词 hospital，句意为：附近有没有一家医院，我可以去治我的手伤？
3. David is such a good boy _________ all the teachers like.
A. that B. who C. as D. whom
【陷阱】此题容易误选A，许多同学一看到题干中的such，再联系到选项中的 that，便认为这是考查such … that …句式。况且，这样理解意思也还通顺。
【分析】最佳答案为C，不是A，因为在such … that … (如此……以至……)结构中，that 引导的是结果状语从句，并且 that 在从句中不充当句子成分，若在上句填入 such … that …，句末的动词 like 缺宾语。选C的理由如下：as 用作关系代词，用以引导定语从句，修饰其前的名词 boy，同时 as 在定语从句中用作动词 like 的宾语，句意为“所有老师都喜欢的一位好男孩”。有的同学可能还会问，假若选A，能否将其后的 that 视为引导定语从句的关系代词呢？不能，因为当先行词受到 such 的修饰时，其后的定语从句应用关系代词 as 来引导，而不用that。比较下面一题，答案为A，因为 like 后有自己的宾语 him：
David is such a good boy _________ all the teachers like him.
A. that B. who C. as D. whom
请再做以下试题（答案选D）：
It was not such a good dinner _________ she had promised us.
A. like B. that C. which D. as
4. The buses, most of _________ were already full, were surrounded by an angry crowd.
A. that B. it C. them D. which
【陷阱】容易误选 C，用 them 代指 the buses。
【分析】最佳答案是D。most of which were already full 为非限制性定语从句，修饰 the buses。类似地，以下各题也选D：
(1) His house, for _________ he paid $10, 000, is now worth $50, 000.
A. that B. it C. them D. which
(2) Ashdown forest, through _________ we’ll be driving, isn’t a forest any longer.
A. that B. it C. them D. which
(3) This I did at nine o’clock, after _________ I sat reading the paper.
A. that B. it C. them D. which
类似地，以下各题选 whom，不选 them：
(4) George, with _________ I played tennis on Sundays, was a warm-hearted person.
A. that B. him C. them D. whom
(5) Her sons, both of _________ work abroad, will come back home this summer.
A. that B. who C. them D. whom
(6) I met the fruit-pickers, several of _________ were still university students.
A. that B. who C. them D. whom
5. He had a lot of friends, only a few of _________ invited to his wedding.
A. whom B. them C. which D. who
【陷阱】容易误选 A，认为这是非限制性定语从句。
【分析】最佳答案是B，这不是非限制性定语从句，而是一个独立主格结构，因为空格后的动词 invited 并不是一个完整的谓语，而是一个过去分词。当然，假若在 invited 前加上助动词 were，则是一个非限制性定语从句，答案便应选A。比较：
(1) They put forward a lot of plans at the meeting, none of _________ carried out in their work.
A. which B. them C. what D. that
答案选B，none of them carried out in their work 是独立主格结构，其中的 carried out 为过去分词
(2) They put forward a lot of plans at the meeting, none of _________ were carried out in their work.
A. which B. them C. what D. that
答案选A，none of them were carried out in their work 是非限制性定语从句，注意与上例比较句中多了一个助动词were。
(3) They put forward a lot of plans at the meeting, but none of _________ were carried out in their work.
A. which B. them C. what D. that
答案选B，由于两句之间增加了一个并列连词but，使得该句成了一个并列句。
6. On Sundays there were a lot of children playing in the park, _________ parents seated together joking.
A. their B. whose C. which D. that
【陷阱】容易误选B，认为这是非限制性定语从句。
【分析】最佳答案是A。与上面一题相似，their parents seated together joking 不是非限制性定语从句，而是一个独立主格结构，因为空格后的动词 seated 不是谓语，而是一个过去分词，因为 seat 作动词用时，是及物动词。比较以下相似题：
(1) On Sundays there were a lot of children playing in the park, _________ parents were seated together joking.
A. their B. whose C. which D. that
选B。whose parents were seated together joking 为非限制性定语从句，因为其后有完整的谓语 were seated。
(2) On Sundays there were a lot of children playing in the park, and _________ parents were seated together joking.
A. their B. whose C. which D. that
选A。因为句中有并列连词and，整个句子为并列句。
(3) On Sundays there were a lot of children playing in the park, _________ parents sitting together joking.
A. their B. whose C. which D. that
选A。their parents sitting together joking 为独立主格结构。
(4) On Sundays there were a lot of children playing in the park, _________ parents sat together joking.
A. their B. whose C. which D. that
选B。whose parents sat together joking 为非限制性定语从句，因为句中有完整的谓语 sat。
(5) On Sundays there were a lot of children playing in the park, _________ parents were sitting together joking.
A. their B. whose C. which D. that
选B。whose parents were sitting together joking 为非限制性定语从句，因为句中有完整的谓语 were sitting。
7. If the man is only interested in your looks, _________ just shows how shallow he is.
A. as B. which C. what D. that
【陷阱】容易误选A或B，误这是非限制性定语从句。
【分析】正确答案为D，注意逗号前是一个条件状语从句，逗号后是该状语从句的主句，that 在此代表前文所述的情况，用作主句的主语。类似地，下面几道题也选 that，而不选 which：
(1) If you promise to go with us, _________ will be OK.
A. as B. which C. and it D. that
(2) If you want a double room, _________ will cost another ￡15.
A. as B. which C. what D. that
(3) Whether you go or not, _________ is quite all right with me.
A. that B. which C. and it D. so
(4) When I say two hours, _________ includes time for eating.
A. as B. which C. what D. that
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