高三英语定语从句公开课教学设计

                   语法专题十二　定语从句 (一)
ⅰ. 定义
定语从句，起形容词的作用，在句中常用来修饰名词或代词。被修饰的词称为先行词,引导定语从句的词称为关系词, 关系词的作用一是放在先行词与定语从句中间起引导作用;二是在意义上代替先行词,并在从句中充当一个成分。其中关系代词：who, whom, whose, which, that, as；关系副词：when, where, why。
eg.  she is the girl who sings best of all.
the pen which my uncle gave me is missing.
he lives in a house whose windows face south.
the factory where my father works is in the east of the city.
perhaps the day will come when people will be able to breathe clean air in cities.

ⅱ. 关系代词
1. 先行词是人，作主语，关系代词用who, that
 eg. he is a man（      ） never leaves today’s work till tomorrow.
     the boy (      ) is standing there is my c