Unit 4 Natural Disasters Section B Discovering Useful Structures教学(ppt课件)-2022新人教版（2019）《高中英语》必修第一册.pptx

1、Unit 4 NATURAL DISASTERSSection B Discovering Useful StructuresCONTENTSLeading-inWhile-classAfter-classPart 1Part 1Part 2Part 2Part 3Part 3Part.1Leading-inLeading in To learn the restrictive attributive clauses with that,which,who,whose,whom To use the restrictive attributive clauses to describe pic

2、tures of disasters.Leading inFind and underline the restrictive attributive 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 provi

3、ded to the disaster area were collected from around the country.Mr Li is an architect whose designs for the new town have won praise.Find more sentences with restrictive attributive clauses from the text on page 50.There were deep cracks that appeared in the well walls.Eleven kilometers directly bel

4、ow the city,one of the most deadly earthquakes of the 20th century had begun,a quake that even caused damage more than 150 kilometers away in Beijing.Two 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

5、.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 survivors whose homes had been destroyed.Part.2While-classWhile-classThe Structure of Attributive Clauses定语从句的结构Two thirds of the people who lived there

6、 were dead or injured.先行词先行词关系关系代词代词定语从句定语从句限制性定语从句作用限制性定语从句作用:修饰和限制先行词修饰和限制先行词 添加新信息添加新信息 增强语句或语段的衔接性增强语句或语段的衔接性While-classFunction of restrictive attributive clauses1.The Tangshan earthquake was a terrible experience.My great-grandma cannot forget the experience.The Tangshan earthquake was a terri

7、ble experience(that my great-grandma cannot forget).2.The couple volunteered to help after the vocano erupted.The couple live next to us.The couple(who live next to us)volunteered to help after the volcano erupted.While-class 1.The supplies which were provided to the disaster area were collected fro

8、m around the country.2.Mr Li is an architect whose designs for the new town have won praise.Analyze the following attributive clauses.1.The supplies which were provided to the disaster area were collected from around the country.While-class The supplies which were provided to the disaster area were

9、collected from around the country.Mr Li is an architect whose designs for the new town have won praise.Analyze the following attributive clauses.The supplies(which were provided to the disaster area)were collected from around the country.While-class The supplies which were provided to the disaster a

10、rea were collected from around the country.Mr Li is an architect whose designs for the new town have won praise.Analyze the following attributive clauses.The supplies(which were provided to the disaster area)were collected from around the country.Mr Li is an architect(whose designs for the new town

11、have won praise).While-class指代人指代人指代物指代物主语主语who/thatwhich/that宾语宾语关系代词可省关系代词可省whom/who/thatwhich/that定语定语“某人某人的的/某物的某物的”whose whose 在从句在从句中的作用中的作用指代指代功能功能While-classwhosewho;thatthat;/which;thatwhosewhomwho;thatWhile-classA huge crack _(8公里长公里长30米宽的米宽的)cut across houses,roads and waterways.A huge cr

12、ack which/that was eight kilometers long and thirty meters wide(8公里长公里长30米宽的米宽的)cut across houses,roads and waterways.Use restrictive relative clauses to describe pictures While-classThe number of people _(死去或死去或严重受伤的严重受伤的)was more than 400,000.The number of people who/that were killed or badly inju

13、red(死去或死去或严重受伤的严重受伤的)was more than 400,000.While-classThere are a number of people _(家园被家园被这灾难性地震毁掉的这灾难性地震毁掉的).There are a number of people whose homes were destroyed by the disastrous earthquake(家园被家园被这灾难性地震毁掉的这灾难性地震毁掉的).While-classSoldiers were sent to Tangshan to dig out those _(被困的被困的)and to bur

14、y the dead.Soldiers were sent to Tangshan to dig out those who were trapped(被困的被困的)and to bury the dead.Part.3After-classAfter-class1.1.作用作用：修饰和限制先行词修饰和限制先行词2.2.结构：结构：先行词先行词+关系词关系词+从句从句 先行词先行词:被定语从句修饰的词。被定语从句修饰的词。关系词关系词:关系代词关系代词(that,which,who,whom,whose)(that,which,who,whom,whose)*关系副词关系副词(where,when,why)(where,when,why)。限制性定语从句小结After-class指代人指代人指代物指代物主语主语who/thatwhich/that宾语宾语关系代词可省关系代词可省whom/who/thatwhich/that定语定语“某人某人的的/某物的某物的”whose whose 在从句在从句中的作用中的作用指代指代功能功能