关于定语从句只用who不用that的情况分析

　　1.只指人，并且在从句中作主语的情况

man who is a new one has rent a flat in downtown of New York for a long time.新来的这个人在纽约市中心租了一栋公寓，有一段时间了。（the man 指人并在句中作主语）

girl who has looked for a job with the help of her tutor is fortunate.这个女孩在导师的帮助下找到了一份工作，她是幸运的。（the girl 指人并在句中作主语）

professor who wrote a book is teaching history.写这本书的专家正在教历史。（the professor既指人又在句中作主语）

　　2.在非限定性定语从句中作主语，并指人时

feel honored to work with , who has good reputation in the business.他感到很荣幸和李先生一起工作，李先生在业界有着良好的声誉。

e is the girl, who was the witness in the severe accident.作为这场严重车祸的`目击者的这个女孩在哪？

scientists, who invented a kind of immune medicine.科学家发明了一种免疫性的药物。

　　3.先行词是god, angel,fairy等词时，用who不用that。

the oil painting, the state of angels who smiled at each other delivered the artist`s emotional.在油画中，天使互相微笑的状态传递了艺术家的情感。