1.当单数主语后有介词with, except , together with ,as well as等介词短语时,谓语用单数.例如:My father, with my mother is going to Beijing tomorrow.
2.当动词不定式.动名词等作主语时,谓语用单数.例如:To be a doctor is my dream. Reading in bed is bad for your eyes.
3. Neither of / one of /each of + 复数名词/代词,谓语常用单数。例如:Neither of the answers is right. ●One of my friends comes from England
4.None of +代词/名词复数,谓语常用单数,也可以用复数.例如:None of us has been to the Great Wall.
5. News ; maths ; physics 做主语时谓语用单数。例如:Maths / Physics is an important subject.
6.The number of +名词复数,(……的数量)作主语时谓语用单数.例如:The number of the teachers in our school is 45.
7. 主语是时间、金钱、距离、价格、质量等的短语做主语时,谓语用单数.Two months is quite a long time. Two hundred kilometres is a long distance.