Unit6 Understanding ideas ppt课件-(2022）新外研版高中《英语》选择性必修第一册.pptx

1、选择性必修一 Unit 6 Understanding ideas高二年级 英语Step 1:Analysis of the materialWhat:本篇课文语篇类型为游记。作者通过描述自己的一次“天路”之旅，回顾了建设者们在青藏铁路修建过程中始终以生态保护为前提，克服重重困难，最终建成这条“不可能建成的”铁路的历程，表达了自己作为其中一名建设者的自豪之情。Why:在阅读过程中了解青藏铁路在建设过程中所遇到的困难和采取的解决办法，体会“天路”对作者的特殊意义，激发民族自豪感，探究单元主题意义。How:文章以青藏铁路沿途风景为主线，介绍了铁路建设过程中的艰辛，使同学们在阅读中学习掌握相关词汇的

2、表达，介绍青藏铁路。Step 2:Leading-inActivity 1:Have you ever been to the place before?How would you go to the place in the pictures？TibetActivity 2:Work in pairs and complete the quiz.Step 3:Knowledge learningFast-reading:Activity 1:Read the passage and find out why the railway is particularly special to the

3、 author.The author has worked on the Qinghai-Tibet Railway.Once believed impossible,the highest railway in the world is a record of the 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.Fast

4、-reading:Activity 2:Divide the passage into three parts and match each part with its main idea.Try to learn about the whole structure of the passage.Part 1 Para _Part 2 Para _Part 3 Para _ The challenges the workers met when constructing the railway and their solutions.The author is proud that they

5、built the“impossible railway”with the care that the environment deserves.The author is about to travel along the Sky Railway.12-67 Careful-reading:Activity 1:Organize information from the passage and complete the table.a total length of about 160 kilometresSeveral oxygen-making stationsregular break

6、sprotect Cuona Lakebuild a twenty-kilometre wallprotect it from construction wasteActivity 2:Choose the authors purpose in writing the passage and give your reasons.1.To prove that humans can conquer nature.2.To highlight the amount of work required to build the Qinghai-Tibet Railway.3.To praise the

7、 workers efforts in building the Qinghai-Tibet Railway.great effortspositive attitude1.To prove that humans can conquer nature.2.To highlight the amount of work required to build the Qinghai-Tibet Railway.3.To praise the workers efforts in building the Qinghai-Tibet Railway.Choose the authors purpos

8、e in writing the passage and give your reasons.Pay attention to the following language points.1.The words“railways like massive dragons are winding among the mountains”seem particularly vivid(Para 1 Line 6-8)wind:v.(wound,wound)(of a road,river,etc.)to have many bends and twists.（道路、河流等）蜿蜒、曲折前进 e.g.

9、The path wound down to the beach.wind:v.to wrap or twist sth.around itself or sth.else 缠卷、缠绕 e.g.Wind the bandage around your finger.wind sth.around/round sth.:把某物缠绕在.上 2.How to protect the delicate ecosystem was among the top concerns.(Para 2 Line 5-7)concern:n.a feeling of worry,especially one tha

10、t is shared by many people（尤指许多人共同的）担心、忧虑 concern about/for/over sth./sb.e.g.There is growing concern about violence on TV.She hasnt been seen for four days and there is concern for her safety.The report expressed concern over continuing high unemployment.2.How to protect the delicate ecosystem was

11、among the top concerns.(Para 2 Line 5-7)concern:v.to worry sb.让（某人）担忧e.g.Issues like food additives do concern me.3.The first landmark to catch my eye is the splendid Qingshuihe Bridge,the worlds longest bridge built over permafrost.(Para 3 Line 1-3)catch sbs eye:to attract someones attention and ma

12、ke them look at something 突然注意到e.g.As she turned back,a movement across the lawn caught her eye.He tried to catch Annies eye as he walked by her seat.3.The first landmark to catch my eye is the splendid Qingshuihe Bridge,the worlds longest bridge built over permafrost.(Para 3 Line 1-3)cant take ones

13、 eyes off sb./sth.look sb.in the eyekeep an eye on sb./sth.have an eye/a good eye for sth.无法将目光从某人/某物身上移开正视某人照看某人/某物对某事物有鉴赏力 4.In locations such as this,the thin air,changeable weather and high levels of UV radiation presented perhaps the greatest challenge for railway workers.(Para 5 Line 5-8)prese

14、nt:v.to cause sth.to happen or be experienced 使发生，使经历e.g.Use of these chemicals may present a fire risk.She was presented with an award.颁发，授予 Are you presenting a paper at the conference?提出，提交 He likes to present himself as a radical politician.（以某种方式）展现 You will be asked to present yourself for int

15、erview.正式出席5.A group of Tibetan antelopes is moving under the bridge,with some stopping to eat grass at their leisure.(Para 3 Line 3-5)with sb./sth.doing/done/to do I stood before her with my heart_(beat)fast.I couldnt do my homework with all that noise _(go on).With her attention _(fix)on the book,

16、the girl sat there quietly.With a lot of difficult problems _(settle),the newly-elected president is having a hard time.beatinggoing onfixedto settleStep 4:Language practiceRetelling Please explain how the“impossible”railway was built with the help of the above table and the following chart.The grea

17、t efforts made to build the“impossible”railway 12between Golmud and Lhasa4Cuona Lake3Tanggula Station Taking years to complete,the Qinghai-Tibet Railway is a record of all the efforts to overcome the most difficult challenges.The first landmark to catch my eye is the Qingshuihe Bridge.In order to pr

18、otect wild animals,thirty-three passages have been built under the railway.To prevent damage to wetlands and grasslands,675 bridges were built between Golmud and Lhasa.Tanggula Station is the highest railway station in the world.To make sure we stayed healthy,several oxygen-making stations were cons

19、tructed.Along the Cuona Lake,we built a twenty-kilometre wall to protect it from construction waste.Step 5:Practical applicationThink and Share:1.Which words in the passage are used to describe the Qinghai-Tibet Railway?What other words could you think of to describe it?Sky Railway,highest,impossibl

20、e,extraordinary;You can also say it is a miracle,great achievement,etc.Think and Share:2.What changes do you think the Qinghai-Tibet Railway has brought to the people living along the railway?The railway has made it convenient for people to travel around;it has promoted the local economy;it has improved peoples living standard.Step 6:Homework1.Please do some online research to find out what other challenges weremet and overcome by the railway workers in constructing the Sky Railway.2.Write a passage to introduce the Sky Railway using what you have learned in class.Thank you!