精选优质文档-倾情为你奉上一、语法一致1.不可数名词、不定式（短语）、动名词（短语）或名词性从句作主语时，谓语动词一般用单数。如：Knowledge is power.知识就是力量。Playing with fire is dangerous.玩火很危险。To see is to believe.眼见为实。Whether they will hold a party or not has not been decided他们还没有决定是否举行晚会。When and where to build the factory is not decided yet.何时何地建厂还未定下来。2.由and 连接两个单数名词作主语，谓语通常用复数。如：Tom and Mary have been married for ten years.汤姆和玛丽结婚10年了。The bread and the butter taste good.奶油和面包很好吃。注意事项：（1）当and连接的两个名词指同一个人，同一物，同一事，同一概念时，谓语用第三人称单
