【课件】Unit1Discoveringusefulstructures课件高中英语人教版（2019）必修第二册

1、Discovering Useful Structures 人教版人教版Book2 Unit 1 Cultural HeritageDescribe people or things in greater detail This is a riverThis is a river which is the longest river in the world.Guesswhich runs through Egypt.the NileThis is a damThis is a dam which is across the Nile.Guess which is the best examp

2、le to protect the cultural heritage.Aswan Damrelative clauseDescribe something in greater detail FROM PROBLEMS TO SOLUTIONSEconomic development is necessary if we want to improve society. There comes a time when the old must give way to the new, and it is not possible to preserve everything from our

3、 past as we move towards the future. Finding and keeping the right balance between progress and the protection of cultural sites can be a big challenge.Big challenges, however, can sometimes lead to great solutions. In the 1950s, the Egyptian government wanted to build a new dam across the Nile in o

4、rder to control floods, produce electricity, and supply water to more farmers in the area. But the proposal led to protests.Water from the dam would likely damage a number of temples and destroy cultural relics that were an important part of Egypts cultural heritage. After listening to the scientist

5、s who had studied the problem, and citizens who lived near the dam, the government turned to the United Nations for help in 1959.A committee was established to limit damage to the Egyptian buildings and prevent the loss of cultural relics. The group asked for contributions from different departments

6、 and raised funds within the international community. Experts investigated the issue,conducted several tests, and then made a proposal for how the buildings could be saved.Finally, a document was signed, and the work began in 1960.The project brought together governments and environmentalists from a

7、round the world.Temples 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. In 1961,German engineers moved the first temple. Over the next20 years, thousands of engineers and workers rescued22 temples and

8、 countless cultural relics. Fifty countries donated nearly $80 million to the project.When the project ended in 1980, it was considered a great success. Not only had the countries found a path to the future that did not run over the relics of the past, but they had also learnt that it was possible f

9、or countries to work together to build a better tomorrow.The spirit of the Aswan Dam project is still alive today.Perhaps the best example is shown by UNESCO,which runs a programme that prevents world cultural heritage sites around the world from disappearing. If a problem seems too difficult for a

10、single nation, the global community can sometimes provide a solution.How does the author describe people or things in greater detail using relative clauses?head nounfunctionsrelative wordThere comes a time when the old must give way to the new.= _whichduringhead nounrelative wordfunctions of relativ

11、e worda timewhenadverbialWater from the dam would likely damage a number of temples and destroy cultural relics that were an important part of Egypts cultural heritage.head nounrelative wordfunctions of relative wordcultural relicsthatsubjectcan be deleted?After listening to the scientists who had s

12、tudied the problem, and citizens who lived near the dam, the government turned tothe United Nations for help in 1959.head nounrelative wordfunctions of relative wordthe scientistswhosubjectcitizenswhosubjectTemples and other cultural sites were taken down pieceby piece, and then moved and put back t

13、ogether again in a place where they were safe from the water. = whichinhead nounrelative wordfunctions of relative wordwherea placeadverbialNot only had the countries found a path to the future that did not run over the relics of the past,.head nounrelative wordfunctions of relative wordthatsubjecta

14、 pathcan be deleted?The spirit of the Aswan Dam project is still alive today. Perhaps the best example is shown by UNESCO, which runs a programme that prevents world cultural heritage sites around the world from disappearing.head nounrelative wordfunctions of relative wordUNESCOwhichsubjecta program

15、methatsubjectcan be deleted?relative clauserelative pronounrelative adverbrelative wordshead nounthatwhowhichsubjectwhenwhereadverbial= 介词介词+ whichcant be deleted1. He showed me a photo in his room. It was a photo of a famous cultural relic in Egypt. The photo_.2. The project team helped protect the

16、 national parks in the United Republic of Tanzania. lt was formed by members from fifteen countries. The project team_.3. 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_.

17、4. This temple was first built during the Qin Dynasty. The time_.5. The documents about the cultural relics from overseas are under the desk. I found themyesterday. The place_.6. Scientists worked together day and night to rescue the temple because they wanted to preserveitfor the next generation. T

18、he reason_.Rewrite the sentences using relative clauses. itRewrite the sentences using relative clauses.并列句并列句主句主句+定语从句定语从句找到相同的两找到相同的两个名词个名词/代词代词I have downloaded that free app, butdoesnt work well.确定主句确定主句that确定确定关系词关系词大小写、大小写、代词的更改代词的更改确定确定从句从句The free app=the free app that free app先行词先行词1. He sh

19、owed me a photo in his room. It was a photo of a famous cultural relic in Egypt. The photo_.2. The project team helped protect the national parks in the United Republic of Tanzania. lt was formed by members from fifteen countries. The project team_.3. We met a professional archaeologist at the entra

20、nce to the Great Pyramid. He explained to us the process of building such a difficult structure. The professional archaeologist_. 4. This temple was first built during the Qin Dynasty. The time_.5. The documents about the cultural relics from overseas are under the desk. I found themyesterday. The p

21、lace_.6. Scientists worked together day and night to rescue the temple because they wanted to preserveitfor the next generation. The reason_.Rewrite the sentences using relative clauses.1. He showed me a photo in his room. It was a photo of a famous cultural relic in Egypt. was a photo of a famous c

22、ultural relic in Egypt.The photo he showed me in his roomthat/whichcan be deleted?a photo先行词先行词 was formed by members from 15 countries2. The project team helped protect the national parks in the United Republic of Tanzania. lt was formed by members from 15 countries. helped protect the national par

23、ks in the United Republic of Tanzania.The project teamthat/whichcan be deleted?it先行词先行词 3. We met a professional archaeologist at the entrance to the Great Pyramid. He explained to us the process of building such a difficult structure. explained to us the process of building such a difficult structu

24、re. we met at the entrance to the Great PyramidThe professional archaeologist that/who/whom a professional archaeologist can be deleted?先行词先行词 this temple was first built4. This temple was first built during the Qin Dynasty.was during Qin Dynasty.The timewhen= whichduring the Qin Dynasty 先行词先行词 I fo

25、und the documents about the cultural relics from overseas yesterday5.The documents about the cultural relics from overseas are under the desk. I found them yesterday.is under the desk. The place where= whichunder the desk 先行词先行词 scientists worked together day and night to rescue the temple6. Scienti

26、sts worked together day and night to rescue the temple because they wanted to preserve it for the next generation. is that they wanted to preserve it for the next generation.The reasonwhy= whichfor the reason relative clauserelative pronounrelative adverbrelativewordhead nounthatwhowhichsubjectwhenw

27、hereadverbialobject= 介词介词+ whichcan be deletedwhywhomWhat is an exit?(where/through which)An exit is the door where you can leave a building. = whichMake a definition using relative clauseWhat is a library?(from which/where)What is a good friend?(to whom/who)What is a vacation?(during which/when)Wha

28、t is a football coach?(from whom/who)What is a good friend?A good friend is someone who _.A good friend is someone whom you can tell your problem.A good friend is someone whom you can play . you can tell your problem toWhat is a vacation?A vacation is a time when _.A vacation is a time _ which you dont work.you do