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1、Unit 4 Natural DisastersSection B Discovering Useful Structures 教学设计科目：英语 课题：Section B Discovering Useful Structures 课时：1 课 时教学目标与核心素养：知识目标：Identify restrictive relative clauses and explore the structures and the pragmatic function of restrictive relative clauses.能力目标：Sum up the usage of relative pr
2、onouns.情感 目标：Use restrictive relative clauses to describe pictures of disasters.教学重难点教学重点：Sum up the usage of relative pronouns.教学难点: Use restrictive relative clauses to describe pictures of disasters.课前准备：多媒体，黑板，粉笔教学过程：一、Pre-classGreeting1. Leading-in教师*舌动：Find and underline the restrictive attribu
3、tive clauses in the sentences below.The Tangshan earthquake was a terrible experience that my great grandma cannot forget.The couple who live next to us volunteered to help after the volcano eruption.The supplies which were provided to the disaster area were collected from around the country.Mr Li i
4、s an architect whose designs for the new town have won praise.There were deep cracks that appeared in the well walls.Eleven kilometers directly below the city, one of the most deadly earthquakes of the 20th centuryhad begun, a quake that even caused damage more than 150 kilometers away in Beijing.Tw
5、o thirds of the people who lived there were dead or injured.The number of people who were killed or badly injured in the quake was more than 400,000.Soon after the quakes, the army sent 150,000 soldiers to Tangshan to dig out those who were trapped and to bury the dead.Workers built shelters for sur
6、vivors whose homes had been destroyed.活动目的：二、While-class教师活动：教师讲解本课语法定语从句一、定义1 .在主从复合句中，对某一名词或代词起修饰作用的从句叫定语从句。被修饰的名词或代 词叫先行词，引导定语从句的词叫关系词。2 .关系词分为关系代词(that, which, who, whom, whose, as等)和关系副词(when, where, why 等)两类。二、关系代词引导的定语从句.who引导的定语从句合作探究The children who were injured in the car accident are bein
7、g treated in the hospital now.目石。， 在 车祸中受伤的孩子们正在医院接受治疗。Danny was the man who we rescued from the ruins.丹尼是我们从废墟中救出来的那个人。自主发现1 who指人，在定语从句中可以充当主语、宾语。1 .whom引导的定语从句合作探究Rose is the person (who/whom) you should care about.罗丝是你应该关心的人。The boy(whom) the teacher often praises is their monitor.老师经常表扬的那个男孩是他们
8、的班长。自主发现2 whom指人，在定语从句中作宾语，可省略，也可用who代替。2 .whose引导的定语从句合作探究I know the person whose house was destroyed in the earthquake.我认识那个人，他的房子在地震中被摧毁了。He lives in a room whose window faces north他住在一个窗子朝北的房间里。自主发现3 whose既可以指人，也可以指物，表示“所属”关系，whose在定语从句中作 定语。3 .which引导的定语从句合作探究The young man was very happy to get
9、 back the gold ring(which) he had lost on the train.刃B个年轻人领回了在火车上丧失的金戒指，非常高兴。The little girl is having an apple which is big and red.小女孩正在吃一个又大又红的苹果。自主发现4 which指物，在定语从句中作主语、宾语，作宾语时可省略。4 .that引导的定语从句合作探究The number of people that/who come to visit this city each year reaches one million.每年来参观 这座城市的人数达
10、100万。(that指人，作主语)The suitcase that/which lies on the ground is hers.地上放的那个手提箱是她的。(that指物，作主语)自主发现5 that既可指人，也可指物，在定语从句中作主语、宾语或表语,作宾语时可 以省略。习惯上指人多用who/whom替代,指物多用which替代。名师提醒关系代词指代先行词在定语从句中充当主语、宾语、定语或表语，因此定语从句中不能 再出现关系代词所替代的名词或代词。(2)关系代词在从句中作主语时不能省略，作宾语时可以省略。三、After-class教师活动：限制性定语从句小结1 .作用：修饰和限制先行词.结构：先行词+关系词+从句先行词：被定语从句修饰的词。关系词：关系代词(that,which,who,whom,whose)* 关系副词(where, when, why)。who / that主语which / thatwhom / who / thatwhom / who / that宾语which / that关系代词可省定语whosewhose“某人的/某物的”