精选优质文档-倾情为你奉上一、如果主语是不可数,动名词,不定式或从句的时候,谓语用单数.Smoking is not a good habit.To live happily needs a lot of things.What I said is true.二、如果由and连接的两个做主语的单数名词指的是同一个人或物的时候,用单数动词.The singer and songwriter is dead.The science and technology plays an important part in China.Bread and butter(=buttered bread) is a good food for patients.“War and Peace” is the best book I have ever read.如果由and连接的两个或更多的主语之前有each, every, many a/an, no的时候用单数名词.Every boy and girl in the class works very
