高一英语人教课标必修1Unit5定语从句简述.ppt
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1、1.何为定语从句?,定语从句Attributive Clause定语可以由形容词,代词,数词,名词,介词短语等来担任。如果一个句子担任定语,这个句子就叫定语从句。定语从句可以修饰名词或代词,还能修饰整个句子。,如1.The man who(that)came first is John.修饰名词man 2.The handkerchief which(that)you gave me wasnt clean.修饰名词handkerchief 3.My father does morning exercise every day,which is good for his health.修饰整个
2、句子,2.定语从句的构成,定语从句所修饰的词叫作先行词,而引导定语从句的词叫关系词(关系代词和关系副词)。关系词一般紧跟在先行词之后引导定语从句。如:There was a young man who liked paintings.句中,who为关系代词,定语从句who liked paintings修饰先行词a young man。再如:This is the house where I lived last year.句中,where为关系副词,定语从句where I lived last year修饰先行词the house。,3.关系词以及注意点,关系代词有which,that,wh
3、o(m),whose;关系副词有when,where,why注意:关系词既代替前面的先行词在从句中担任一定的成分,又把两个句子连接起来,构成一个带有定语从句的主从复合句。例如:两个简单句 Thank you for the record.+You gave me the record.主从复合句 Thank you for the record which(that)you gave me.Thank you for the record which(that)you gave me the record.(F)Thank you for the record which(that)you g
4、ave it to me.(F)说明:关系代词which/that代替前面的先行词the record,已经在从句中担任宾语,所以再在从句中加the record或it就重复了。,4.关 系 词 如 何 用?,关系代词当关系代词在从句中作 主语时,指人用关系代词who,that;指物用which,that.如:The man who/that sat beside me was excited.The car which/that is over there is my favorite.当关系代词在从句中作宾语时,指人用关系代词 whom/that/who(非正式),指物用关系代词which
5、/that,口语中可以省略。如:The doctor whom/that/she visited is famous.The blouse which/that/she tried on was small.当关系代词在从句中作定语,表示所有关系时,用whose(既指人也指物)如:I live in a house whose door faces west.I know a woman whose daughter died.,4.关 系 词 如 何 用?,注意:在下列情况下,无论关系代词在定语从句中是作主语还是宾语,指人还是指物,都用 that1.先行词带有最高级形容词,或有only,al
6、l 等词修饰时;如:This is the best film that I have ever seen.You are the only person that can help me.2.先行词为all,something,anything 等不定代词时;如:You can take anything that you like.All that I have is given by my parents.3.先行词既指人又指物时;如:Do you know the people and things that they are talking about?,4.关 系 词 如 何 用?
7、,关系副词关系副词when,where,why 分别表示时间,地点和原因,在定语从句中起状语的作用。如:He told me the date when the meeting would be held.(相 当于 on which)This is the place where he works.(相当于at which)No one knows the reason why he suddenly died.注意:如果先行词是reason,关系词为why,that 或省略。The reason why/that/he changed his mind is not clear.The r
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