主标题：2025年专升本英语中关系代词只能用Which的情形

　　专升本英语中关系代词用来引导定语从句，一般有that、Which、whose、who等，接下来这篇文章昇学小编要给大家分享的是英语中关系代词必须用Which的情形，考生们快来学习吧。

　　1、在介词后，只能用which，不可用that

　　That is the house in which Mark Twain used to live.

　　那是马克·吐温曾经住过的房子。

　　2、在非限制性定语从句中，只可用which，不可用that

　　He had failed in the maths exam,which made his father very angry.

　　他数学考试不及格，这使他父亲非常生气。

　　3、当主句中的主语被that修饰时

　　That dog which I found in the street belongs to Mary.

　　我在街上找到的那条狗是玛丽的。

　　which在定语从句中指代整件事的用法：

　　The meeting, which was held in the park, was a great success. Which=meeting

　　在公园里举行的会议非常成功。

　　All the books, which have beautiful pictures in them, were written by him . Which=the books

　　所有的书都是他写的，里面有漂亮的图画。

　　Cruso's dog became ill and died,which made him very lonely. (which代指逗号前的句子)克鲁索的狗病了死了，这使他非常孤独。

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