新教材2021-2022学年高中英语外研版必修第一册课件：UNIT 5 INTO THE WILD-PERIOD 2 USING LANGUAGES .ppt

1、Period 2 Using languageLearning aimsBy the end of this class,you will be able to:1.summarize the usages of“when,where,why”introducing attributive clauses;2.use attributive clauses introduced by“when,where,why”in the situation given;Leading in1.The man(who talked to you just now)is an engineer.2.This

2、 kind of book is for children(whose native language is Chinese).3.I enjoyed the evening(that we spent together by the sea).4.Who is the lady(that is standing over there with Ann)?What do“who”,“whose”and“that”refer to in each sentence?定语从句（）关系副词的用法Grammar1.概述当引导定语从句的关系词在从句中作时间、地点、原因状语时，应使用关系副词 when，w

3、here，why。关系副词的作用如下：（1）指代表示时间、地点、原因的先行词；（2）在从句中充当句子成分状语；（3）起连接作用，把主句和定语从句连接起来。【即学即练】找出句中的关系副词及定语从句修饰的先行词(1)There was a time when I hated to go to school._(2)It is a world of wonders,a world where anything can happen._(3)The reason why he did not come is quite clear._ 关系副词：when；先行词：a time关系副词：where；先行

4、词：a world关系副词：why；先行词：the reason2.关系副词引导的定语从句（1）when 引导的定语从句when 表示时间，代替先行词并在定语从句中作时间状语，其先行词往往是表示时间的名词，如time，day，week，year等。【名师点津】当先行词是时间名词时，定语从句既可用 when 引导，也可以用 that 或 which 引导，关键看关系词在从句中作何种成分。若关系词在定语从句中作状语，则用when 引导；若关系词在定语从句中作主语或宾语，则用 that 或 which 引导。（2）where 引导的定语从句where 表示地点，代替先行词并在定语从句中作地点状语，其

5、先行词往往是表示地点的名词，如 place，factory，house，village 等，或表示抽象地点的名词，如 position，point，case，stage，situation，atmosphere 等。【名师点津】当先行词是地点名词时，如果关系词在定语从句中作主语或宾语，则用 that 或 which 引导定语从句。（3）why 引导的定语从句why 表示原因，代替先行词并在定语从句中作原因状语，其先行词是表示理由的名词 reason。【名师点津】若代替先行词 reason 的关系词在定语从句中不作状语，而是充当主语或宾语，则用 that 或 which 引导定语从句。【即学即练

6、】根据语境填入适当的关系副词(1)We will never forget the day _we flew at an altitude of 6，000 meters in the sky.(2)Do you still remember the days _we chatted with each other all night?(3)Do you still remember the days _we spent together on the farm?(4)Finally，we got to a factory，_many mobile phones of high quality

7、 were produced.whenwhen that/which where(5)Its helpful to put children in a situation _ they can see themselves differently.(6)This is the house _was built by my grandfather forty years ago.(7)I dont know the reason _ he didnt turn to his good friend for help yesterday.(8)I wont listen to the reason

8、 _ you have given us.why that/which that/which where缺._，选择_定语从句关系词的选择判断从句_缺_，_,_选择._句子成分关系副词状语关系代词宾语主语Summary总结做题方法Step 1:Step 2：Step 3:找先行词确定其性质（人/物）将先行词代入从句中看做何成分确定关系代词/关系副词Connect the sentences with the relative adverbs when,where or why.1.This is the school.I studied at this school a few years a

9、go.2.Can you tell me the time?The film will start at this time.3.Do you know the reason?He is not here for this reason.This is the school where I studied a few years ago.Can you tell me the time when the film will start?Do you know the reason why he is not here?Exercise1.He wrote a letter _ he expla

10、ined what had happened in the accident.2.Finally,after four hours,they arrived at the campsite（营地）_ their parents were waiting.3.As the smallest child of his family,Alex is longing for the time _ he should be able to be independent.wherewherewhenComplete the sentences4.There are many good websites _ you can check out the latest in the science world.5.His interest started a few years ago,_ he was in college and studying wildlife science.whenwhere