<正> 一、英语关系代词如在定语从句中作主语,定语从句中的谓语动词应该与先行词保持主谓一致。例如: 1.I,who am your friend,once told you so.The boywho is playing on the lawn is Mrs Smith’s son. 2.He has a watch which needs to be winded every day. 3.The road that leads to the shore is sandy. 二、如有两个先行词表示两个不同概念时,定语从句的谓语与复数名词一致。例如: 1.The cabman and the cab that were easily found inLondon in the past can be seen no more now.