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定语从句学习有四大难点 难度一：引导词作从句的主语，难度二：引导词作从句的宾语，难度三：引导词作从句的宾语，但需加介词，难度四：引导词where前加from(基本不考) 要想学定语从句，先明白什么是定语。很多同学连定语是什么都弄不清楚，那就更不用提定语从句了。其实，定语的本质就是形容词。中文的形容词只能放在名词前面，而英语的形容词，可以放在名词前面，也可以放在后面。举例：小白兔，小，白，都是“兔”的定语。a small white rabbit. a, small, white，都是英语的定语。 那什么是定语从句，简单来讲就是把一个定语，变成句子。比如，a small white rabbit = a rabbit which is small and white. 这个句子就叫做从句。被定语从句形容/修饰的那个名词，叫做“先行词”。引导先行词的又见关系词。 which在这里叫做“关系词”，也可以称之为引导词。英语里关系词又分为关系代词和关系副词。
接下来看定语从句四大难点。 一，引导词作从句主语 1. Pumas are large, cat-like animalswhich are found in America. which是从句的引导词，作从句的主语，意思等于它前面的名词animals，这个名词又叫先行词。 2. These days, people who do manual workoften receive far more money than peoplewho work in offices. 两个who分别是两个定语从句的引导词，都是作从句的主语，意思等于people，people又叫先行词。 3. There were a number of tall structuresthat contained coloured lights. that是从句的引导词，作从句的主语，意思等于structures。 难点二，引导词作从句宾语 1. The first thingthat I sawwas a big clock. that是从句的引导词，作从句的宾语，意思等于thing。that I saw=I saw that=I saw thing，引导词不管是什么成分，都要移到从句最前面。 2. Joe revealed a secretwhich he had kept for over ten years. which是从句的引导词，做从句的宾语，意思等于secret。从句=he had keptthe secret=whichfor over ten years，把引导词which移到从句前面。 难点三，引导词作从句宾语，需加入介词 这里就需要用到定理五：介词+名词=副词 定从的引导词that/which/who，是名词词性 1. We sometimes imagine a desert island to be a sort of paradisewhere the sun always shines. 从句=the sun always shinesin the paradise=in which=where，where和in which可以互换，把where/in which移到从句前面。 2. They support the cablesfrom which the bridge has been suspended. 从句=the bridge has been suspendedfrom cables=from which，把from which移到从句最前面。如果先行词不是地点名词，就不能换成where（灵活性很大，有理就可以）。 难点四，引导词用from where 当所描述的事情/物品，与你不在同一个物体上，就要在where前加入from。画个图吧，直观一些。 1.I stand on the top of the mountainwhereI can see many trees. 2. I stand on the top of the mountainfrom where I can see a plane. |
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理解了什么叫做定语从句后，我们看上表。先行词为物的时候，用的引导词有哪些。为人的时候，用的引导词又是哪些。从表中可以很清楚的看出来。
