名词的数(Number)和主谓一致(Concord)是英语语法体系中两个重要的语法范畴。然而汉语语法体系中根本就没有这两个语法范畴，也就给我们学英语带来极大的困难,往往受母语的影响乱用名词的数,也不管主语和谓语动词之间的数是否一致。 谈到名词的数当然就要涉及到单数(singulari Nouns Number and Concord are two important grammatical categories in English grammar. However, the Chinese grammar system does not have these two grammatical categories at all, which brings us great difficulties in learning English. It often misuses the number of nouns affected by the mother tongue, regardless of the number of subject and predicate verb. Of course, the number of nouns involved singular