where、when、why定语从句ppt课件(PPT 14页)

1、 The boy _ is standing under the tree is my friend Tom. He lives in a house _ stands on a hill. That little girl_ Tom often helps is his sister Mary. The bird _ is singing in the cage is Toms too. Bob is his dog _ Tom and Mary often play with. The dog is great. Yesterday he caught a thief _running a

2、way. Exercise 2: 用who/whom/which/that填空who/thatwhich/thatwho/whom/thatwhich/thatwhich/thatwho/that第1页，共14页。1. 引导定语从句。2. 代替先行词。3. 在定语从句中担当一个成分。关系词的三个作用:确定关系代词的步骤1.先找先行词，2.看先行词指的是人还是物。3.看关系词在从句中充当的成分。第2页，共14页。where、when、 why 引导的定语从句第3页，共14页。The room is comfortable (舒适). I live in the room.The room whe

3、re I live is comfortable which关系词where代替地点，相当于“介词+which”，在从句中充当状语。in 第4页，共14页。对比：1、This is the farm we visited last week.This is the farm. We visited the farm last week.（作宾语）2、This is the farm we worked last week.This is the farm.We worked on the farm last week.（作状语）解题关键：看引导词在从句中充当的成分：作主语或宾语用that/wh

4、ich；作状语用where。(thatwhich) where第5页，共14页。补充：1、当先行词为point, situation, case, stage等表示模糊的地点时，定语从句的引导词也可用where.I can think of many cases where the students know a lot of words but couldnt write a good essay.2、当先行词为way时，定语从句用that/in which/不填引导。I dont like the way thatin which不填 you treat her.第6页，共14页。I wi

5、ll never forget the time. We worked on the farm during that time.I will never forget the time when we worked on the farm.during which关系词when代替时间，相当于“介词+which”，在从句中充当时间状语。第7页，共14页。Oct.1,1949 is the day whenon which the PRC was founded.Oct.1,1949 is the day.The PRC was founded on the day.第8页，共14页。对比：1

6、、Do you remember the days we spent together?Do you remember the days?We spent the days together .（作宾语）2、Do you remember the days we worked together?Do you remember the days?We worked during the days together?（作状语）解题关键：看引导词在从句中充当的成分：作主语或宾语用that/which；作状语用when。(thatwhich) when第9页，共14页。This is the reas

7、on.He was late for the reason.This is the reason why he was late.for which关系词why代替reason(原因），相当于“for+which”，在从句中充当原因状语。第10页，共14页。对比：1、I know the reason he gave you.I know the reason.He gave you the reason.（作宾语）2、I know the reason you failed.I know the reason.You failed for the reason.（作状语）解题关键：看引导词在

8、从句中充当的成分：作主语或宾语用that/which；作状语用why。(thatwhich) why第11页，共14页。关系副词的用法关系副词指代先行词是在从句中充当的成分when (=at/in/on /during which) where (=in/at which)why (=for which) 时间时间状语地点地点状语原因原因状语关系副词引导定语从句时，既引导定语从句，又在定语从句中充当状语。第12页，共14页。3.I can still remember the sitting-room _ my mother and I used to sit in the evening.A. what B. which C. that D. where 第13页，共14页。4.I shall never forget those years _ I lived i