Unit 1 Discovering Useful Structures P6（ppt课件）（共17张）-2022新人教版（2019）《高中英语》必修第二册.pptx（纯ppt,无音视频）

1、Discovering Useful Structures P6 Unit 1 Cultural Heritage 读课文读课文，找找出出含有定语从句含有定语从句的句子；的句子；找出每个定语从句中的关系代词找出每个定语从句中的关系代词/副词及对应的副词及对应的先行词。先行词。1.After listening to the scientists who had studied the problem,and citizens who lived near the dam,the government turned to the United Nations for help.2.Temples

2、 and other cultural sites were taken down piece by piece,and then moved and put back together again in a place where they were safe from the water.Presentation 读课文读课文，找找出出含有定语从句含有定语从句的句子；的句子；找出每个定语从句中的关系代词找出每个定语从句中的关系代词/副词及对应的副词及对应的先行词。先行词。3.There comes a time when the old must give way to the new.4

3、.Perhaps the best example is shown by UNESCO,which runs a programme that prevents world cultural heritage sites around the world from disappearing.PresentationSummaryEXAMPLEI have downloaded that free app,but it doesnt work well.The free app(which/that)I have downloaded doesnt work well.Practice用定语从

4、句重组句子：第一步：明确主句和从句。第二步：找出先行词，确定它在主句中的功能。第三步：根据先行词和关系代词或副词在从句中的功能，确定使用哪个关系代词或副词。TipsRewrite the sentences using relative clauses.1.He showed me a photo in his room.It was a photo of a famous cutural relic in Egypt.The photo _ _2.The project team helped protect the national parks in the United Republic

5、 of Tanzania.It was formed by members from fifteen countries.The project team _ _ _3.This temple was first built during the Qin Dynasty.Rewrite the sentences using relative clauses.(which/that)he showed me in his room was of a famous cultural relic in Egypt.whose members were from fifteen countries

6、helped protect the nationalparks in the United Republic of Tanzania.The time _ _4.We met a professional archaeologist at the entrance to the Great Pyramid.He explained to us the process of building such a difficult structure.The professional archaeologist _ _ _ _5.The documents about the cultural re

7、lics from overseas are under the desk.I found them yesterday.The place _when this temple was first built was during the Qin Dynasty.(who/whom)we met at the entrance to the Great Pyramid explained to us the process of building such a difficult structure.where I found the documents about _ _6.Scientis

8、ts worked together day and night to rescue the temple because they wanted to preserve it for next generation The reason _ _ _ _the cultural relics from overseas yesterday is under the desk.why scientists worked together day and night to rescue the temple is that they wanted to preserve it for the ne

9、xt generation.1.定语从句的先行词在定语从句中作宾语时，关系词通常省略。如：I have taken with me the two books(that/which)you asked me to return to the City Library.2.先行词是way,reason,time,place等且它们在 定语从句中分别作方式、原因、时间和地点 状语时其后定语从句的相应关系词that/in which,why/that，when,where等可以省略。如：The way(that/in which)you look at the problem is wrong.3.

10、由and,but,or等并列连词连接两个或两个以上的定语从句修饰同一个先行词时，第一个关系词可以省略，但第二、三个一般不可以省略。如：The reason(why/that)he wanted to sell his house was that he needed a lot of money for his operation.当关系代词在定语从句中作介词的宾语时，我们通常用“介词+关系代词”引导定语从句。关系代词只能用which或whom。先行词指物时，用which；先行词指人时用whom。在这个结构中，介词的确定的原则是：依据定语从句中动词或形容词等所需要的某种习惯搭配来确定。He i

11、s the man on whom you can rely.依据与先行词搭配的具体意义而定。Ill never forget the day on which we worked together in the countryside.根据所表达的意思来确定。The clever boy made a hole in the wall,through which we could see what was happening inside the house.表示“所有”关系或“整体中的一部分”时，通常用介词of。Julie was good at German,French and Rus

12、sian,all of which she spoke fluently.在定语从句中，有一些含介词的动词短语不可拆不可拆开开使用，如look after,look for等。The babies whom the nurses are looking after are very healthy.【注意】Complete the sentences with of whom,to whom,for which or in which.The region _ the antelopes live is very cold.The volunteer _ I spoke said condit

13、ions were difficult.Jiesang is a hero _ we should be proud.There are several animals _ special laws have been introduced.in which in which to whomto whomof whomof whomfor whichfor whichProductionPair work:Play a game of definition.One asks the questions below and the other answers them with relative

14、 clauses.EXAMPLE An exit is the door where/through which you can leave a building.What is an exit?1.Whats a library?(from/in which;where)A library is a place from/in which/where you can borrow books.2.Whats a good friend?(to whom;who)A good friend is someone to whom you can tell your problems.=A goo

15、d friend is someone who you can tell your problems to.3.Whats a vacation?(during which;when)A vacation is a time during which/when you dont work.4.Whats a football coach?(from whom;who)A football coach is someone from whom football players receive training.=A football coach is someone who trains football players.和主句之间不用逗和主句之间不用逗号分开，修饰主句中的某一个名词或名号分开，修饰主句中的某一个名词或名词词组或代词；词词组或代词；常用常用逗号和主句隔开，可以修饰主句中的某逗号和主句隔开，可以修饰主句中的某一个词，也可修饰整个句子。非限制性一个词，也可修饰整个句子。非限制性定语从句不能用定语从句不能用thatthat引导，引导非限制引导，引导非限制性定语从句的关系词不能省略。性定语从句的关系词不能省略。