With the method of citation analysis , beginning with the notion of the three often - used citation measure indexes , this paper re - defined the meaning of the three indexes in the the evaluation of publishing house ; then with the three indexes , the contribution of the publishing house in the domain of library , information and documentation was evaluated ; finally , the limitation of the application of the three indexes was expounded 摘要本文利用引文分析的方法，从期刊评价的三大引文测度指标的概念内涵入手，对其在出版社影响力评价中的含义进行了重新界定，并以此对在图书、情报和文献领域做出贡献的出版社进行了实证评价，最后在上述分析的基础上，对这三项指标的局限性进行了深入探讨。
With the help of grammatical context , we can make students understand that the same word used in the different grammatical structures may have different meaning , certain words can be only occurred in a particular grammatical context , and differem parts of speech may have different functions in the sentence . in other words , in grammatical context , the syntactic structure of the context determines various individual meaning of a polysemous word . with the help of lexical context , students can study the collocative relationship and the collocative meaning of the word 借助语法语境，可以让学生理解同一词语在不同的句法结构中的意义是不尽相同的，某些词只能出现在特定的句法结构中，以及不同的词类出现在句中有着不同的功用等；词汇语境可以帮助学生理解和把握词的搭配关系，当和不同的词搭配在一起的时候，词语的意义可能发生变化，某些词只能和特定的词搭配在一起使用；言语语境不仅能帮助学生理解词的意义，而且还可以使学生懂得如何利用言语环境的帮助来猜测和确定生词的意义，使多义词在特定的语境中的含义得以定位。
