that √ √ √ √ √ which √ √ √ √ √ whose √ √ √ as √ √ √ √ √ √ 　　1.that和which的用法

　　(1) which指物，that既可指人也可指物；它们在从句中作主语、宾语或表语，which和that在从句中作宾语时可以省略。

　　Please find a room which/that is big enough for all of us to live in.

　　请找一间足够住下我们所有人的房间。

　　This is the house (which/that) we bought last month.

　　这是我们上个月买的那幢房子。

　　The man (that) we have just seen is a famous writer.

　　我们刚刚看到的那个人是一位著名的作家。

　　Shanghai is no longer the city that it used to be.

　　上海不再是过去的那座城市了。

　　(2) 在限制性定语从句中，关系代词指物时只能用that而不用which的情况：

　　①先行词是all，little，few，none，anything，something, everything, nothing等词时。

　　Can you give me anything that has no sugar inside?

　　能不能给我点儿里面没有糖的东西？

　　②当先行词是序数词、形容词最高级或被形容词最高级、序数词修饰时。

　　This is the first letter that he has written to me.

　　这是他给我写的第一封信。

　　Guilin is the most beautiful city that I have ever visited.桂林是我去过的最美丽的城市。

　　③当先行词the only, the very, the same, the right等修饰时。

　　He is the very person that they are looking for.

　　他正是他们在找的人。

　　④当先行词既有人又有物时。

They talked about the things and persons that they could remember in the school.