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Unit 5 Languages Around the World
Discovering Useful Structures教学设计
科目：英语 课题：Discovering Useful Structures课时：1课时
教学目标与核心素养：
知识目标：Master key words and sentence structures.
能力目标：Appreciate the figures of speech and writing skills used in the text.
情感目标：Understand the development history of Chinese characters and appreciate the charm of Chinese civilization that has continued to this day.
教学重难点
教学重点：Appreciate the figures of speech and writing skills used in the text.
教学难点：Understand the development history of Chinese characters and appreciate the charm of Chinese civilization.
课前准备：多媒体，黑板，粉笔
教学过程：
一、Pre-class
1. Greeting
2. Leading-in
教师活动：
Ask Ss: Look at these sentences and underline the restrictive attributive clauses. What kind of information does each clause communicate
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.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.
二、While- class
1.T analyses the grammar
定语从句(Ⅱ)关系副词的用法
当引导定语从句的关系词在从句中用作时间、地点、原因状语时，应使用关系副词when, where, why或“介词＋which”。
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，即在从句中起副词的作用。
3．起连接作用，把主句和定语从句连接起来构成主从复合句。
一、关系副词引导定语从句
．when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。
2．where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。
3．why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。
二、关系代词与关系副词的选用
　定语从句的引导词用关系代词还是关系副词可以用以下两种方式判断：
用法 依据
根据从句的谓语动词 是及物动词，后面若无宾语，用关系代词；是不及物动词则用关系副词
根据先行词在从句中所作的成分 把先行词代入定语从句中，若作主语或宾语用关系代词；作状语则用关系副词

This is the factory where he used to work.
这是他以前工作过的那家工厂。(work是不及物动词)
This is the factory (that/which) I visited last year.
这是我去年参观过的那家工厂。(visit是及物动词)
Is this the museum (that/which) you visited a few days ago
这就是你几天前参观的那家博物馆吗？(从句缺少宾语)
Is this the museum where the exhibition was held
这就是举办展览的那家博物馆吗？(从句缺少地点状语)
三、介词+关系代词引导的定语从句
关系副词when, where, 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”。
I still remember the time when_(＝in_which) I was in college.
我仍然记得我上大学的那段时光。
I have forgotten the exact date when_(＝on_which) this country became independent.
我忘记这个国家独立的确切日期了。
(2)where可以换成“介词＋which”。
This is the hotel where_(＝in_which) they stayed.
这就是他们待过的旅馆。
(3)why可以用for which来代替。
This is the reason why_(＝for_which)he left in a hurry.
这是他匆匆的原因。
1、介词选择的三原则：一先二动三意义。
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。
2、介词可以后移，此时关系代词可以忽略。
3、名词/代词/数词+of+关系代词 引导的定语从句通常是非限制性定语从句，该结构在定语从句中一般作主语。
三、After-class
Finish the exercises
1. I will always remember the time ________ we lived together.
2. I will always remember the time ________we spent together
3. Can you still think of the village ________ he once worked
4. Can you still think of the village ________he once visited
5. This is the reason________ he explained to me.
6. This is the reason ________ he didn’t come.
四、Homework
完成同步课时作业，总结语法知识

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