1. 关系代词作宾语时的省略：当关系代词在定语从句中用作动词宾语或介词位于句末时的介词宾语时,可以省略.如：Is there anything (which) you wanted? 想要什么东西吗? Who is the man (that, who, whom) you were talking to? 刚才和你讲话的人是谁?但是,如果是直接用于介词后作宾语,则不可省略.如：This is the room in which I was born. 这是我出生的那间房间.这里talk to 和born in后不是都可以跟宾语吗，后者为什么不是room （which/that） I was born in.呢