判断定语从句引导词的一般思路知识点 1. 明确引导词的常规用法  定语从句的引导词在定语从句中不仅起到引导从句的作用，而且都有具体含义，因此定语从句的引导词，包括that，在定语从句中一定充当一个句子成分。从词性上看，这些引导词可以分为两大类：代词和副词。that, which, who, whom，as等为代词，when, where, why等为副词。代词类的引导词在定语从句中可以充当主语、表语或宾语，副词类的引导词可以充当状语。从具体用法上看，that即可代人也可代物，which只能代物，who和whom只能代人，分别作主语和宾语。as引导定语从句时为代词，可作主语、宾语或表语。在定语从句中，when作时间状语，where作地点状语，why作原因状语。  2. 明确定语从句的逻辑语序  一般说来,定语从句和其他各类从句一样采用陈述句的语序，但实际上和一般陈述句的语序并不完全相同。相同之处在于和陈述句一样，定语从句也是主语在前、谓语动词在后的语序，不同之处在于引导词要位于从句句首，因为引导词的作用就在于引导从句。如上文分析，定语从句的引导词既是从句中的一个句子成分，还必须位于从句句首，这就造成了从句的实际语序和逻辑语序不一致的现象，对理解引导词在定语从句中充当的成分造成困难，分析从句的逻辑语序就成了确定引导词在从句中充当何种句子成分的有效手段。  3. 明确句子成分的基本概念  分析定语从句的实际语序和逻辑语序离不开对各种基本句子成分的概念的准确理解。一般说来，主语和宾语由名词或代词充当，而表示时间、地点或原因的结构往往是句子的状语。根据定语从句引导词的词性可以确定that，which，who，whom，as等代词性的引导词在从句中作主语或宾语，而when，where，why等副词在从句中作状语。  新概念英语3课文 新概念英语教材 新概念英语网校 4. 确定定语从句引导词的一般思路  在明确了引导词的常规用法、定语从句的逻辑语序和句子成分的基本概念之后，我们可以通过如下思路逐步确定定语从句的引导词：  （1） 通过分析定语从句的逻辑语序确定引导词在句中是何成分。  （2） 根据引导词在从句中充当的成分确定引导词的词性。如果引导词在从句中为主语或宾语，则引导词为代词，并且定语从句中充当宾语的引导词可以省略；如果引导词在句中为状语，则引导词为副词。  （3） 确定了引导词的词性之后，参考先行词和句意最终确定引导词。如果引导词为代词，其必然代指先行词。先行词为物，则用that或which，先行词为人，则用that或who（whom）；如果引导词为副词，则根据句意判断其为时间、地点或是原因，分别对应when，where和why。  1. I’m looking for a present for my mother’s birthday, _____ she can use and at a reasonable price.   A. that B. one C. what    D. which 2. --Do you have anything in mind _____ you’d like for supper?  --Well, _____ is okay with me. A. that…anything          B. which…everything C. what…whatever      D. where…something 3. Father was disappointed to see the radio _____ went wrong again. A. he had it repaired B. he had repaired it      C. had been repaired D. he had had repaired 4. There isn’t much _____ I can do, _____ makes me disappointed. A. that…which B. which…that C. that…that D. which…which 5. That e-book is no larger than an ordinary book with a screen _____ you can read novels. A. in which B. that C. where D. of which 6. "Who moved my cheese?”, _____ is a best-selling book, is written by Spencer Johnson. A. which      B. that      C. it    D. whose 7. Shirley said that she would have a two-week holiday in July, _____ I think, is impossible. A. it B. that C. when D. which 8. The girl _____ everybody had thought would win a gold medal failed at last. A. which B. whom C. who D. what 9. It was an exciting moment for these football fans this year, _____ for the first time in years their team won  the World Cup. A. that B. which C. when D. while 10. The curious child didn’t believe the fact _____. A. that most of them thought it to be true B. most of them thought to be true C. what most of them thought was true D. as most of them thought true