3．which只指物，不指人，可作主语或宾语，作宾语时可省略。
Guilin is a city which has a history of 2，000 years.
桂林是一个有2 000年历史的城市。
The young man was very happy to get back the gold ring(which) he had lost on the train.
那个年轻人找回了在火车上丢失的金戒指，非常高兴。
4．whose既可指人，也可指物。其后接名词，与先行词构成从属关系，在从句中作定语。
This is the scientist whose name is known all over the country.
这就是那位闻名全国的科学家。
Nobody wants the house whose roof has fallen in.
没有人想要这个屋顶已坍塌的房子。
5．that指人时，相当于who或whom；指物时，相当于which。在定语从句中作主语或宾语，作宾语时可省略。
The woman(that)I read about in the newspaper has just won a gold medal.我在报纸上读过那位妇女的相关报道，她刚刚夺得一枚金牌。
The report(that)Mr.Turner handed in was about the motor race.
特纳先生递交的报告是关于摩托车比赛的。
[即时演练2] 关系代词填空
①Look, here are some people who/whom/that I want you to meet.
②Do you still remember the chicken farm that/which we visited three months ago?
③Any student whose family is too poor to go to school can get help from the government.
