Unit 6 Starting out & understanding ideas（ppt课件）-2022新外研版（2019）《高中英语》选择性必修第一册.pptx

1、Nurturing natureBook 4 Unit 6Starting out&Understanding ideasStarting outLook at the pictures and answer the questions.1.What do you know about these places?2.What do these places have in common？p.61 Activity 1Background informationHuanglong,ChinaLocated in the north of Sichuan Province,Huanglong is

2、 a historic and scenic area widely known for its hot springs and waterfalls,valleys snow-capped peaks and forest.The area also has a population of endangered animals,Including pandas and monkeys.Iguazu Falls,Argentina and BrazilThe Iguaz Falls stretch in width for 2.7 kilometres(or 1.7 miles).Their

3、height varies between 60 metres(200 feet)and 82 metres(or 269 feet).They feature over 275 individual falls that thunder into the Iguazu River.Special walkways have been built around the Iguazu Falls to allow visitors to get close up to this wonder of their natural beauty and power.p.61 Activity 1Bac

4、kground informationMount Kilimanjaro,TanzaniaMount Kilimanjaro is located in the north-east of Tanzania.It is at 5.895 metres above sea level and is the highest mountain in Africa surrounded by forest,it is also the worlds highest free-standing mountain.Uluru,Australia.Uluru,also known as Ayers Rock

5、,is a large sandstone rock formation in southwestern Northern Territory,central Australia.Uluru is sacred to the Aboriginal(土著的)people of the area.Uluru rises 348 metres above the surrounding desert plain and reaches a height 863 metres above sea level.The area around the formation is home to an abu

6、ndance of springs,waterholes,rock caves and ancient paintings.p.61 Activity 1Starting outWatch the video and answer the questions.1.What are the three types of World Heritage Sites？2.What other natural heritage sites in China do you know of?p.61 Activity 2Starting outp.61 Activity 2Watch the video a

7、nd answer the questions.1.What are the three types of World Heritage Sites？2.What other natural heritage sites in China do you know of?There are three types of the World Heritage Sites,cultural,natural and mixed.A mixed heritage site is a site that has both cultural and natural significance.Pre-read

8、ing:Quiz Work in pairs and complete the quiz.Try to guess if you are not sure of the answers.p.62 Activity 11.Which is the highest railway in the world?a.The Trans-Siberian Railway.b.The Qinghai-Tibet Railway.c.The Chengdu-Kunming Railway.2.In which year was the completed Qinghai-Tibet Railway put i

9、nto operation?a.1984.b.2001.c.2006.Pre-reading:Quiz Work in pairs and complete the quiz.Try to guess if you are not sure of the answers.p.62 Activity 13.Which of these stations is not on the Qinghai-Tibet Railway?a.Lhasa b.Golmud.c.Lanzhou.4.Which of these natural World Heritage Sites does the Qingh

10、ai-Tibet Railway pass by?a.Xinjiang Tianshan.b.Qinghai Hoh Xil.c.South China Karst.The South China Karst regions:Shilin Karst(in Yunnan Province),Libo Karst(in Guizhou Province),and Wulong Karst(in Chongqing Municipality).Once believed“impossible”,the highest railway in the world is a record of the

11、efforts of the workers to overcome the most difficult engineering challenges.Prediction What is the text about?p.62 Activity 2Please find out the travelling route.While-reading 1.To prove that humans can conquer nature.2.To highlight the amount of work required to build the Qinghai-Tibet Railway.3.T

12、o praise the workers efforts in building the Qinghai-Tibet Railway.Choose the authors purpose in writing the passage and give your reasons.p.64 Activity 3ReasonsPara.2-6:challenges/problems and measures Para 6:“.I feel a sense of pride and achievement.”Para 7:“.I am proud that we built our“impossibl

13、e”railway,.Many examples of how to overcome the difficulties during the construction in the text also give clues to the authors purpose in writing the passage.”Organize information from the passage and complete the table.p.64 Activity 4Thirty-three passagesmove safely and freely in their natural hab

14、itatprevent damage to wetlands and grasslandsa total length of about 160 kilometresmoved to a new areaSeveral oxygen-making stationsregular breaksprotect Cuona Lakebuild a twenty-kilometre wallprotect it from construction waste 1.Why is the Qinghai-Tibet Railway called the sky railway?What other wor

15、ds could you think of to describe it?Key words:impossible,highest,extraordinary.Think and sharep.64 We can also say it is a miracle,great achievement.2.How is the theme of nurturing nature presented in this text?Think and sharep.64 The author uses his personal experience to describe the challenges o

16、f building the railway and the solutions to these problems to tell us that we should protect nature while constructing and developing human society.Language pointsUseful expressions（p.61-p.63）have in commonput into operationwork ona record ofdelicate ecosystembe among the top concernscatch ones eyes

17、at ones leisure allow sb to do sthspeed past1.1.有共同之处有共同之处2.2.投入投入使用使用3.3.致力于致力于4.4.对对的的记录记录5.5.脆弱的生态系统脆弱的生态系统6.6.是最关切的问题之一是最关切的问题之一7.7.吸引某人视线吸引某人视线8.8.在某人有空时在某人有空时9.9.允许某人做某事允许某人做某事10.10.疾驰而疾驰而过过Useful expressions（p.61-p.63）1._(sit)back in my seat,I cant quite believe that Im about to travel along

18、the railway _ many foreign experts _ was“impossible”.2.The train _(race)along _(steady)since it left Xining.3.翻译：翻译：“railways like massive dragons are winding among the mountains”一条条巨龙翻山越岭一条条巨龙翻山越岭 wind|wand|The river winds its way to the ocean.4._(take)years to complete,the Qinghai-Tibet Railway is

19、 a.Sittingthatclaimedhas been racingsteadilyTakingUseful expressions（p.63-p.64）distinct ecosystemfly bybefore sb.know itbe located at/in/offUV radiation(ultraviolet)present a challenge for oxygen-making stationsenjoy regular breaksa sense of pride and achievementprotect sb/sth from sth 11.11.特殊的生态系统

20、特殊的生态系统12.12.飞逝飞逝13.13.不知不觉不知不觉地；很快地；很快14.14.位于位于15.15.紫外线紫外线16.16.构成挑战构成挑战17.17.制氧站制氧站18.18.享受享受有规律的休假有规律的休假19.19.一一种自豪感和成就感种自豪感和成就感20.20.保护保护某人某人 /某事免受某事免受Useful expressions be close to reach outwander the grasslandsbring to lifethanks to our effortsconquer nature21.21.离得近离得近22.22.伸出（手伸出（手）23.23.漫

21、步草地漫步草地24.24.使使苏醒苏醒 /焕发生机焕发生机25.25.多亏了我们的努力多亏了我们的努力26.26.征服自然征服自然5.In locations such as this,the thin air,_(change)weather and 6.The Qinghai-Tibet Plateau _(attract)peoples _(admire)for centuries.7.It _(true)is an extraordinary“Sky Railway”.changeablehas been attractingadmirationtrulyGrammar Present

22、 perfect continuous 1.Which of these statements is true about sentence(a)?a)Wild animals started using these passages in the past.b)Wild animals used these passages only once.c)Wild animals still use these passages now.Activity 1 Look at the sentences from the reading passage and answer the question

23、s.Activity 1 Look at the sentences from the reading passage and answer the questions.They are different in form and meaning.sentence(a):the action is continuous from the past;sentence(b):the action happened once in the past.2.What is the difference between the expressions in bold in sentences(a)and(

24、b)?现在完成进行时：概念界定现在完成进行时：概念界定肯定：have/has been doing否定：havent/hasnt been doing 现在完成进行时表示动作从过去某一时间开始一现在完成进行时表示动作从过去某一时间开始一直直持续到现在持续到现在，并且还，并且还可能继续进行可能继续进行。1.现在完成进行时现在完成进行时的的形式形式(Form)2.现在现在完成进行时完成进行时的的概念概念(Meaning)1 1）在）在不用时间状语不用时间状语的情况下，的情况下，have been doing的动作不一定已的动作不一定已经完成经完成(即强调延续即强调延续)，而而have done一般

25、表示动作已经完成（即一般表示动作已经完成（即强调结果）。强调结果）。例句分析：例句分析：He has been writing a novel,which will be finished next month.He has written a novel,which is being prepared to come out now.现在完成进行时现在完成进行时3.现在完成进行时与现在完成时的区别现在完成进行时与现在完成时的区别2 2）have been doinghave been doing往往表示动作在往往表示动作在重复重复，而，而have donehave done一般一般不表示动作

26、的重复。不表示动作的重复。例句分析：例句分析：I have been visiting my hometown recently,and it impresses me differently each time.最近我总回老家，每次感觉都不一样。I have visited my hometown recently,whose changes have left a deep impression on me.最近我回了趟老家，那里巨大的变化让我惊讶。现在完成进行时现在完成进行时3.现在完成进行时与现在完成时的区别现在完成进行时与现在完成时的区别3 3）have been doinghave

27、 been doing与所有与所有进行时态进行时态一样一样带有感情色彩带有感情色彩，可使，可使表达显得生动；而现在完成时往往只表明一个事实、一种影响表达显得生动；而现在完成时往往只表明一个事实、一种影响或结果，不带感情色彩。或结果，不带感情色彩。例如：Recently he has always been helping me.最近他总帮我（感激）。Recently he has helped me a lot.最近他帮了我很多（客观陈述）。现在完成进行时现在完成进行时3.现在完成进行时与现在完成时的区别现在完成进行时与现在完成时的区别1.Mary really hard on his boo

28、k and thinks hell have finished it by Friday.（2015陕西22）A.worked B.has been working C.had worked D.has worked2.Where is Peter?I cant find him anywhere.He went to the library after breakfast and _ his essay there ever since.（2015福建30）A.wrote B.had writtenC.has been writing D.is writingPractice:Activit

29、y 2（教材（教材p.65）1.have been hearing2.has been making3.is moving4.have been flying5.have been given6.have been usingPractice:Activity 3（教材（教材p.65）Look at the charts and make sentences using the present perfect continuous tense.1.The number of trees has been increasing in the last 20 years.2.Desert areas have been reducing in the last 20 years.3.Butterfly population has been increasing/has been becoming larger and larger in the last 20 years.