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

1、Unit 6 Nurturing natureStarting out&Understanding ideasMount KilimanjaroTanzaniaUluru,AustraliaIguaz FallsArgentina and BrazilHuanglong,ChinaActivity 1:Look at the pictures and answer the questions.1.What do you know about these places?2.What do these places have in common?Huanglong,ChinaActivity 1:

2、Look at the pictures and answer the questions.Huanglong,ChinaLocated in the north of Sichuan Province,Huanglong is 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

3、 snub-nosed monkeys.Iguaz FallsArgentina and BrazilActivity 1:Look at the pictures and answer the questions.Iguaz Falls,Argentina and BrazilThe Iguaz Falls originate from the Iguaz River and are located on the border of Argentina and Brazil.The heights of the falls vary from 60 metres to 82 metres.M

4、ount KilimanjaroTanzaniaActivity 1:Look at the pictures and answer the questions.Mount 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-st

5、anding mountain.Uluru,AustraliaActivity 1:Look at the pictures and answer the questions.Uluru,AustraliaUluru is a large sandstone rock formation in the south-west of Australias Northern Territory.A sacred site to indigenous Australians,Uluru rises 348 metres above the desert plain and reaches a heig

6、ht of 863 metres above sea level.Activity 1:Look at the pictures and answer the questions.2.What do these places have in common?For us humans,these places are all valuable natural resources.Mount KilimanjaroTanzaniaUluru,AustraliaIguaz FallsArgentina and BrazilHuanglong,ChinaWhat can nature do to us

7、 humans?Nature can provide everything humans need to survive and live better.Nature is offering humans with fresh air to breath,clean water to drink and various food to eat.Its absolutely right that humans cant live without nature.Activity 2:Think and discuss.What can we humans do to nature?People u

8、sed to think:Current SituationUnfortunately,as mans desire expands,man asks for more and more from nature.As a result,the environment has been seriously polluted by chemical wastes from factories and sewage in cities.Farmland is also overworked and has lost its fertility.And a variety of wild animal

9、s are being hunted and killed.Naturally,the consequences are that many species of plants and animals are disappearing from the earth and the balance of the nature is being upset.Now nature has taken revenge on man.It is clear that nature is full of power and man has the ability to know nature,to exp

10、lore nature and reform nature but not the ability to conquer nature or control nature.Activity 2:Think and discuss.Humans can explore nature.Activity 2:Think and discuss.Humans can reform nature.Three Gorges DamActivity 2:Think and discuss.Uluru,AustraliaIguaz FallArgentina and BrazilHumans can appr

11、eciate nature.Activity 2:Think and discuss.Activity 2:Think and discuss.Humans can protect nature.1.What are the three types of World Heritage Sites?2.What other natural heritage sites in China do you know of?Cultural World Heritage sites,Natural WorldHeritage sites and Mixed World Heritage sites.Ji

12、uzhaigou Valley Scenic and Historic Interest Area,Shennongjia National Forest Park.Activity 3:Watch the video and answer the questions.The Sky RailwayFirst phaseSecond phaseBackground informationThe Qinghai-Tibet Railway is a national railway connecting Xining City,Qinghai Province to Lhasa City,Tib

13、et Autonomous Region.It is one of Chinas four major projects in the new century.It is also the plateau railway with the highest altitude and the longest route in the world.The Qinghai-Tibet Railway,1956 kilometers long,was completed in two phases.Phase I project starts from Xining City in the East a

14、nd Golmud City in the West.It was completed and opened to traffic in May 1984;The second phase of the project starts from Golmud City in the East and Lhasa City in the West.The whole line was opened to traffic on July 1,2006.1.Which is the highest railway in the world?A.The Trans-Siberian Railway.B.

15、The Qinghai-Tibet Railway.C.The Chengdu-Kunming Railway.2.In which year was the completed Qinghai-Tibet Railway put into operation?A.1984.B.2001.C.2006.NoImage3.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 t

16、he Qinghai-Tibet Railway pass by?A.Xinjiang Tianshan.B.Qinghai Hoh Xil.C.South China Karst.Activity 1:Work in pairs and complete the quiz.1.adv.平稳地2.adj.巨大的3.adj.脆弱的4.n.地标5.adj.壮丽的6.n.永久冻土层7.adj.西藏的8.n.羚羊9.n.空闲，闲暇_steadily massive delicate landmark splendid permafrost Tibetan antelope leisure Previe

17、w the new words.10.空闲时11.n.湿地12.n.草原13.n.辐射14.adj.如镜面般的15.v.徘徊16.n.风景，景色17.n.高原_wetland grasslandradiationmirror-like wandersceneryplateauat ones leisure Preview the new words.Paragraph 1Sitting back in my seat,I cant quite believe that Im about to travel along the railway that many foreign experts

18、claimed was“impossible”.The train has been racing along steadily since it left Xining.All this time,the song“Sky Railway”has been playing inside my head.The words“railways like massive dragons are winding among the mountains”seem particularly vivid as I travel across the“roof of the world”.Main idea

19、Im about to travel along Qinghai-Tibet Railway.Read and summarise the main ideaParagraph 2I was one of the people who came from all parts of China to work on this railway.Taking years to complete,the Qinghai-Tibet Railway is a record of all of our efforts to overcome the most difficult engineering c

20、hallenges.How to protect the delicate ecosystem was among the top concerns.Main ideaHow to protect the delicate ecosystem was the top concern of various difficult engineering challenges.Read and summarise the main ideaParagraph 3The first landmark to catch my eye is the splendid Qingshuihe Bridge,th

21、e worlds longest bridge built over permafrost.Look!A group of Tibetan antelopes is moving under the bridge,with some stopping to eat grass at their leisure.Thirty-three passages have been built under the railway to allow the animals to move safely and freely in their natural habitat.Wild animals suc

22、h as these Tibetan antelopes have now been using these passages for years.They seem totally unaware that we are speeding past at over 100 kilometres an hour.Main ideaThirty-three passages were built under Qingshuihe Bridge to allow animals to move safely and freely.Read and summarise the main ideaPa

23、ragraph 4To prevent damage to wetlands and grasslands,675 bridges with a total length of about 160 kilometres were built between Golmud and Lhasa.We even moved 140,000 square metres of wetland to a new area in order to protect its distinct ecosystem.Main idea 675 bridges were built to p r e v e n t

24、d a m a g e t o wetlands and grasslands.Read and summarise the main ideaParagraph 5The journey has been flying by,and before I know it,we have reached Tanggula Station.Located at over 5,000 metres above sea level,this is the highest railway station in the world.In locations such as this,the thin air

25、,changeable weather and high levels of UV radiation presented perhaps the greatest challenge for railway workers.To make sure we stayed healthy,several oxygen-making stations were constructed.We were also able to enjoy regular breaks in lower areas.Main ideaSeveral oxygen-making stations were constr

26、ucted for railway workers.Read and summarise the main ideaParagraph 6As we pass Cuona Lake,I feel a sense of pride and achievement.Using thousands and thousands of sandbags,we built a twenty-kilometre wall along the lake to protect it from construction waste.Cuona Lake is so close to the railway tha

27、t I want to reach out and touch its pale blue mirror-like surface.Water birds playing in the lake,and cattle and sheep wandering the grasslands bring the scenery to life.Main ideaA twenty-kilometre wall along the lake were built to protect Cuona Lake from construction waste.Read and summarise the ma

28、in ideaParagraph 7The Qinghai-Tibet Plateau has been attracting peoples admiration for centuries.Now,thanks to our efforts,passengers from all over the country have been enjoying these magical landscapes.I am proud that we built our“impossible”railway,and did so with the care that the environment de

29、serves.It truly is an extraordinary“Sky Railway”.Main ideaI am proud that we built our“impossible”railway,and did so with the care that the environment deserves.Read and summarise the main ideaThe Sky Railway Part 1:Para 1-2When considering overcoming the most difficult engineering challenges,how to

30、 protect the delicate ecosystem was among our top concerns.Part 2:Para 3-6The challenges and solutions.Part 3:Para 7We built the Qinghai-Tibet Railway with care that the environment deserves.Read and Analyze1.The train has been racing along steadily since it left Xining.All this time,the song“Sky Ra

31、ilway”has been playing inside my head.Examples:It has been raining for two hours.雨已经下了两个小时了。（现在还在下）I have been learning English since three years ago.三年以来我一直在学英语。（动作还将继续下去）has been racing和has been playing都是现在完成进行时。现在完成进行时现在完成进行时结构：主语+助动词（have/has）+been+动词的现在分词+其他成分。意义：表示从过去开始一直持续到现在的动作，该动作在说话时仍在继续进行

32、，而且可能还要继续下去。Words and expressions2.The words“railways like massive dragons are winding among the mountains”seem particularly vivid as I travel across the“roof of the world”.massive adj.巨大的；强大的；剧烈的；极具破坏力的wind在此处作动词用，意为“（道路、河流等）蜿蜒，曲折前进”；wind作动词时还有“缠绕，卷绕”的意思，常见的搭配是 wind sth around/round sth“把某物缠绕在上”。th

33、e“roof of the world”的意思是“世界屋脊”，用来指代 the Qinghai-Tibet Plateau（青藏高原）。Examples:The floods caused a massive loss of life.洪水造成许多人丧生。They have a massive great house.他们有一座非常大的房子。A snake winds round a branch.一条蛇缠绕在树枝上。Words and expressions3.I was one of the people who came from all parts of China to work o

34、n this railway.Taking years to complete,the Qinghai-Tibet Railway is a record of all of our efforts to overcome the most difficult engineering challenges.NoImagewho came from all parts of China to work on this railway是由关系代词who引导的定语从句，修饰先行词people，关系词在定语从句中作主语，不可以省略。Taking years to complete是动词的现在分词短语作

35、状语，与逻辑主语the Qinghai-Tibet Railway是主动关系。非谓语动词作状语时，要看非谓语动词与句子主语之间的逻辑关系，作状语的动词与句子主语构成主动关系时，要用现在分词形式；构成被动关系时，要用过去分词形式。Examples:Turning the corner,we saw the park in front of us.转过弯，我们看到公园就在我们前面。Treated gently,the fabric could last for years.如果好好保养，这种织物可以使用很多年。Words and expressions4.How to protect the de

36、licate ecosystem was among the top concerns.delicate adj.脆弱的；易损的；易碎的；精致的；精美的 delicacy n.脆弱；谨慎；周到；佳肴concern在这里用作名词，意为“忧虑，担心”。concern还可用作动词，意为“使担心，使忧虑”。例如：Issues like food additives do concern me.（食品添加剂这类事情确实使我很担心。）Examples:Babies have very delicate skin.婴儿的皮肤非常娇嫩。The delicate handicraft works will no

37、t bear rough handling.精致的手工艺品经不起粗鲁的摆弄。Both countries are behaving with rare delicacy.两个国家都表现出少有的谨慎。There is growing concern about violence on TV.人们对电视上充斥暴力内容的忧虑日益加重。Words and expressions5.The first landmark to catch my eye is the splendid Qingshuihe Bridge,the worlds longest bridge built over permaf

38、rost.Examples:It was the unusual colour of his jacket that caught my eye.他的夹克衫的颜色与众不同，一下就吸引了我的目光。The book includes a wealth of splendid photographs.该书中有大量精彩的照片。The climbers stood on the top of the mountain,gazing at the splendid view.登山队员们站在山顶，凝视那壮丽的景色。catch ones eyes 吸引某人的视线，吸引某人的注意=eye-catching ad

39、j.引人注目的，耀眼的，明显的the first landmark to catch my eye相当于the first eye-catching landmark。splendid adj.极好的；极佳的；壮丽的；辉煌的Words and expressionswith some stopping.是是with+名词/代词+doing结构，作状语，表示伴随的状态，some和stopping之间是主动关系。leisure n.空闲；闲暇 at(ones)leisure 有空时；空闲时6.Look!A group of Tibetan antelopes is moving under the

40、 bridge,with some stopping to eat grass at their leisure.Examples:With his food running out,the man had to come out of his hiding place.食物吃完了，那人不得不从藏身之处出来。On the whole,people miss the opportunity to enjoy leisure.总的来说，人们渴望享受闲暇的时光。Please read it over at your leisure.请你在闲暇时候读一读。Words and expressions7.

41、In locations such as this,the thin air,changeable weather and high levels of UV radiation presented perhaps the greatest challenge for railway workers.radiation n.辐射；（热或光的能量）辐射 radiate v.散发；流露；焕发；发射（光或热）present在这里作动词用，意为“引起、造成”。在该句话中，the thin air,changeable weather and high levels of UV radiation为主语

42、，the greatest challenge为宾语。另外，present作动词时，还有“颁发、授予”的意思。Examples:Ozone is the earths barrier against ultra-violet radiation.臭氧是地球防止紫外线辐射的屏障。He radiated self-confidence and optimism.他显得自信乐观。Heat radiated from the glowing wood.燃烧的木头散发出热量。She presented a bravery award to Caroline.她向卡罗琳颁发了英勇奖状。Words and

43、expressionsWater birds playing in the lake和cattle and sheep wandering the grasslands是两个动名词短语，它们由and连接，充当句子的主语；该句的谓语动词是bring。8.Water birds playing in the lake,and cattle and sheep wandering the grasslands bring the scenery to life.Examples:With his food running out,the man had to come out of his hidi

44、ng place.食物吃完了，那人不得不从藏身之处出来。On the whole,people miss the opportunity to enjoy leisure.总的来说，人们渴望享受闲暇的时光。Please read it over at your leisure.请你在闲暇时候读一读。Words and expressionsThe author has worked on the Qinghai-Tibet Railway.Once believed“impossible”,the highest railway in the world is a record of the

45、efforts of the workers to overcome the most difficult engineering challenges.These efforts and their end results mean that the railway is special to the author.Activity 2:Read the passage and find out why the railway is particularly special to the author.1.Whats the authors purpose in writing the pa

46、ssage?A.To prove that humans can conquer nature.B.To highlight the amount of work required to build the Qinghai-Tibet Railway.C.To praise the workers efforts in building the Qinghai-Tibet Railway.NoImageActivity 3:Choose the best answer according to the passage.ChallengesSolutionsTo protect wild ani

47、mals._have been built under the railway to allow the animals to _.To _ _.675 bridges with _were built between Golmud and Lhasa.140,000 square metres of wetland were _ in order to protect its distinct ecosystem.Thirty-three passagesmove safely and freely in their natural habitatprevent damage to wetl

48、ands and grasslandsa total length of about 160 kilometers moved to a new areaActivity 4:Organise information from the passage and complete the table.ChallengesSolutionsTo make sure the workers stayed healthy._ were constructed.The workers also enjoyed _ in lower areas.To _.Thousands and thousands of sandbags were used to _ along the lake to _.Several oxygen-making stationsregular breaksprotect Cuona Lakebuild a twenty-kilometre wallprotect it from construction wasteActivity 4:Organise information from the passage and complete the table.