1、UNIT 1 CULTURAL HERITAGE定语从句定语从句人教2019版必修二Harry Porter is a boy who has magic power.先行词 关系词定语从句关系代词关系副词which,who,whom,whose,thatwhere,when，why，介词+which/whom关系代词（关系代词（who,whom,which,that,whose）的指代关系）的指代关系指人指人指物指物在定语从句中的成分在定语从句中的成分who主语主语宾语宾语(可省略可省略)whom宾语宾语(可省略可省略)which主语主语宾语宾语(可省略可省略)that主语主语宾语宾语(可省
2、略可省略)whose定语定语1when引导定语从句when表示时间,代替先行词并在定语从句中做时间状语，其先行词往往是表示时间的名词，如time,day,year,month,week等。2where引导定语从句where表示地点,代替先行词并在定语从句中做地点状语，其先行词往往是具体地点place,room,mountain,airport或抽象地点的名词如case,state,condition,point,situation等。3why引导定语从句的用法why表示原因,代替先行词并在定语从句中做原因状语，其先行词是表示理由的名词reason。一、关系副词引导定语从句关系副词when,wh
3、ere,why引导定语从句时，关系副词也可用“介词+关系代词“代替。(1)when可以换成“介词which”。(2)where可以换成“介词which”。(3)why可以用for which来代替。1.It was a time when people were divided geographically.2.Emperor Qinshihuang united the seven major states into one unified country where the Chinese writing system began to develop in one direction.3
4、.There are many reasons why people learn a foreign language.4.These were animal bones and shells on which symbols were carved by ancient Chinese people.It was a time at which people were divided geographically.Emperor Qinshihuang united the seven major states into one unified country in which the Ch
5、inese There are many reasons for which people learn a foreign language.These were animal bones and shells where symbols were carved by ancient Chinese people.一先：根据先行词的搭配习惯来确定。二动：根据从句中谓语动词的搭配习惯来确定。三意义：根据从句所表达的意义来确定。介词选择的三原则：一先二动三意义。1.1.根据定语从句中根据定语从句中先行词先行词的搭配习惯确定的搭配习惯确定根据定语从句中根据定语从句中谓语动词的搭配习惯谓语动词的搭配习惯确定确定根据定语从句所表达的意义来确定根据定语从句所表达的意义来确定Air,_ which man cant live,is really important.The film _ I fell asleep was very boring.The pen _which he is writing now was bought yesterday.during whichwithoutwithWorkbook P62P63Thank you
