主谓一致使用主谓一致时，必须遵循三个原则，即语法一致原则、意义一致原则和就近一致原则
一、当单数可数名词、不可数名词、复合不定代词、单个不定式（疑问词＋不定式）、动名词或主语从句以及表示“时间、价值、重量、距离、书名、影片名称”等名词作主语时，谓语动词通常用单数形式
例如：The curtains are closed and the living room is dark when Mom and Dadenter
Visiting a place like this is always very interesting
Why pleasant smells do not reduce pain in men is a question still to beanswered by scientists
二、all（some, a lot, plenty, any, part, the rest, most等）＋of＋名词作主语以及分数、百分数构成短语作主语时，谓语动词单复数形式取决于 of 后的名词或代词
表示复数概念用复数；表示单数概念用单数
例如：As a result of the serious flood, two-thirds of the buildings in the areaneed repairing
One study says that 90% of our time is spent watching television or usingcomputers
While the rest of the passengers were getting out, she glanced at thefaces around her
三、在“名词/代词＋介宾结构＋谓语＋…”结构中，谓语动词与名词/代词保持一致，介宾结构看作插入成分
该结构中的常见
