限定性和非限定性.ppt

形容词性从句-定语从句,限定性定语从句和非限定性定语从句的区别。,定语从句分为限定性定语从句和非限定性定语从句。,非限定性定语从句用逗号隔开 限定性定语从句不用逗号,The man who is carrying a black bag is a professor. Mr. White said the test would be easy, which delighted me a lot.,限定性定语从句对被修饰词起到限制、修饰的作用，一般不可缺少。 非限定性定语从句起补充、附带说明作用，缺少也不会影响全句的理解。,e.g. The man who is wearing a black suit is my boss. She said she had finished her work, which I doubted very much.,The earth, which goes around the sun, is a ball-like planet. 地球是一个球型的星球，它围着太阳转。 The earth which goes around the sun is a ball-like planet. 那个围着太阳转的地球是一个球型的星球。 *非限定性定语从句 不用that或者why引导。,非限定性定语从句起补充说明作用。 限定性定语从句起限制修饰作用。,限定性定语从句修饰名词或者代词 非限定性定语从句修饰名词，代词或者整个主句。,All that glitters is not gold. 闪光的不全是金子。 The sun provides the earth with heat and light, which makes it possible for plants to grow. 太阳供给地球光和热，这使得植物生长有了可能。,限制性定语从句中关系代词作宾语时可以省略 非限制性定语从句中，关系代词不能省略,He is the man (whom) I want to see. Her teacher, whom we saw the day before yesterday, had completed thirty years of teaching.,The end,4. 只用that，不用which的情况： 当先行词有序数词或形容词最高级修饰时； 当先行词前有the only, the very, the last等词修饰时； 当先行词为anything, nothing, something, everything, all, little, much等不定代词修饰时； 当先行词前有all, every, no, some, any, little, much, few等词修饰时；,5. 只用which，不用that的情况： 引导非限制性定语从句时； 引导词前有介词时； 一个句子中若有两个定语从句，一个用that引导，另一个用which引导； e.g. He bought a book that could give him much knowledge and