外研版（2019）必修第一册Unit 5 Into the wild Using languages 课件 (共15张PPT)

(共15张PPT)
Unit 5 Into the wild
Period 2 Using language
Learning aims
By 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 in
1.The man (who talked to you just now) is an engineer.
2.This 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（Ⅱ）——关系副词的用法
Grammar
1.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，where，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；先行词：a world
关系副词：why；先行词：the reason
2.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 】
①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。
②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】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 were produced.
when
when
that/which
where
(5) (2023·新高考Ⅰ卷) A dirty stream, for example, often became clear after flowing through plants and along rocks tiny creatures lived.
(6) This is the house ___________was built by my grandfather forty years ago.
(7) I don’t know the reason _________ he didn’t turn to his good friend for help yesterday.
(8) I won’t listen to the reason ___________ 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 ago.
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
Exercise
1.He wrote a letter _______ he explained 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.
where
where
when
Complete the sentences
4.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.
when
where
Try your best!
Living things that are nourished will not injure one another; roads that run parallel will not interfere with one another. ——Li Ji
万物并育而不相害，道并行而不相悖。
——《礼记》