whom √ √ which √ √ √ √ √ that √ √ √ √ √ whose √ √ √ as √ √ √ √ √ √ 　　　Women who drink more than two cups of coffee a day have a greater chance of having heart disease than those who don't.(who作主语)

　　每天喝两杯以上咖啡的妇女患有心脏病的几率比不喝咖啡的妇女高。

　　He is the man whom/who I am waiting for.(who/whom作宾语，亦可省略)

　　他就是我正在等待的那个人。

　　Please find a room that is big enough for all of us to live in.(that作主语，指物)

　　请找一间足够住下我们所有人的房间。

　　This is the house which we bought last month.(which作宾语)

　　这是我们上个月买的那幢房子。

　　She is no longer the girl (that) she was before she went to college.(that作表语，指人)

　　她已不是上大学前的她了。

　　Do you know the girl whose Japanese is excellent？(whose作定语，指人)

　　你认识那个日语非常优秀的女孩吗？

　　Please pass me the book whose cover is green.(whose作定语，指物)

　　请递给我那本绿色封面的书。

　　He is such a good boy as we all like.(as作宾语，指人)

　　他是那么好的孩子，我们都喜欢。

　　2．关系代词that与which的用法区别

　　(1)关系代词用that不用which的情况

　　①当先行词是all，everything, nothing, something, anything, much, little, few等不定代词时。

　　He did everything that he could to help us.

　　他做了一切能做的事来帮助我们。

　　②当先行词被序数词修饰时。

　　This is the first two­storey bus that runs in our city.

　　这是第一辆运行于我市的双层公交车。

　　③当先行词被形容词最高级修饰时。

　　This is the most interesting film that I have ever seen.

　　这是我曾看过的最有趣的电影。

④当先行词被the very, the only等修饰时。