英语语法定语从句的扩展及补充

　　1.定义：在句中起定语的作用
　　2.分类
　　2.1.限制性定语从句This is the lpace which is worth visiting
　　2.2.非限制性定语从句Look at the place which is worth visiting
　　3.关系词
　　3.1.关系代词
　　3.1.1.This is the place which/that is worth visiting
　　3.1.2.People who/that are willing to attend the party,sign here please
　　3.1.3.Thie is the man whose house has burned down
　　3.1.4.The man who/whom/that you met is my friend
　　3.1.5.This is the same book as was bought before
　　3.2.关系副词
　　3.2.1.The time when/in、on which we got together finally came
　　3.2.2.ShaiHai is the city where/in、at which YaoMing are boin
　　3.2.3.Please tell me the reason why/for which he looks unhappy
　　3.2.4.The gas is called oxygen,without which we cannot live
　　3.2.5.We got to the riage from where we had fantastic views
　　4.特殊情况
　　4.1.只有that不用which
　　4.1.1.当先行词被all/everything/nothing/anything/little much等不定代词修饰时，只能用that
　　4.1.1.1.Tell me everything that you know
　　4.1.2.当先行词被adj.最高级修饰时，只能用that
　　4.1.2.1.This is the mose beautiful city that I visited
　　4.1.3.当先行词既包括人又包括物时
　　4.1.3.1.He hasn＂t sent us the workers and equipment that we need
　　4.1.4.当先行词被very/both/the only/all/every/no way/little/much/some 修饰时，只用that
　　4.1.4.1.This is the only coat that I have
　　4.1.5.当主句是以who/which开头的特殊疑问句时，只用that
　　4.1.5.1.Which is the coat that you like best?
　　4.1.6.当关系代词在从句中作表语时，只用that
　　4.1.6.1.Your disease is not the case that it used to be
　　4.2.As与which引导非限制性定语从句时的区别
　　4.2.1.which:这；那，可修饰句子也可修饰先行词，只能放在句中。He often comes to school late,which make his teach angry
　　4.2.2.as:正如，只能修饰句子，放主句主前、之中、之后。As we all know,the earth moves around the sun
　　4.2.2.1.as is know to all
　　4.2.2.2.as is often the case
　　4.2.2.3.as is said beore
　　4.2.2.4.as we expected=as was expected
　　4.2.2.5.as is reported
　　4.3.介词+which/whon中介词如何确定
　　4.3.1.可根据先行词的搭配来确定介词
　　4.3.1.1.There is a dictionary in which we can lookup the new word
　　4.3.2.可根据固定搭配来确定介词
　　4.3.2.1.How she needs a person to whon she should turn for help
　　4.3.3.可根据整个句子的句意来确定
　　4.3.3.1.The gas is called oxygen,without which we can＂t live