外研版（2019）选择性必修 第一册Unit 6 Nurturing nature Starting out & Understanding ideas课件(共93张PPT)
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| 名称 | 外研版（2019）选择性必修 第一册Unit 6 Nurturing nature Starting out & Understanding ideas课件(共93张PPT) |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2024-04-17 22:00:39 | ||
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(共93张PPT)
Unit 6 Nurturing nature
Section A Starting out & Understanding ideas
课前预习
知识体系图解
一、重点词汇
1.____________adv.平稳地
2.____________adj.脆弱的
3.____________adj.壮丽的
4.____________n.空闲，闲暇
steadily
delicate
splendid
leisure
5. __________ n.辐射
6. massive adj.____________________
7. landmark n._____________________
8. mirror-like adj.___________________
9. wander v._______________________
10. scenery n._______________________
radiation
巨大的
地标
如镜面般的
徘徊
风景，景色
二、重点短语
1. 投入运行 __________________________
2. 吸引眼球 __________________________
3. 闲暇时 ____________________________
4. 一种自豪感 ________________________
5. 靠近 ______________________________
be put into operation
catch one′s eyes
at one′s leisure
a sense of pride
be close to
6. be located at _________________________
7. above sea level _______________________
8. reach out ___________________________
9. bring...to life ________________________
10. thanks to ___________________________
位于
海平面以上
伸手去够
使……焕发生机
幸亏，由于
三、重点句式
1. Sitting back in my seat，I can′t quite believe that I’m about to travel along the railway that many foreign experts claimed was “impossible”.
2. A group of Tibetan antelopes is moving under the bridge，with some stopping to eat grass at their leisure.
词汇拓展
1. massive→(n.)_____________
2. delicate→(adv.)____________
3. leisure→(adj.)_____________
4. radiation → (v.)_____________
→ (adj.)____________→(n.)______________
mass
delicately
leisurely
radiate
radiant
adiance
5.wander→(n.)_____________
6.scenery(n.)_______________→(adj.)______________
7.economy→(adj.)_______________
8.disturb→(n.)_____________→(adj.)_______________
9.emission→(v.)__________________
10.operator→(v.)__________________
11.conservationist→(n.)____________→(v.)___________
wanderer
scene
scenic
economic
disturbance
disturbing
emit
operate
conservation
conserve
阅读导学
根据课文内容，回答下列问题。
1. What did the author do several years ago ( )
A. He was a singer.
B. He was a composer.
C. He was a journalist.
D. He was a worker on the Sky Railway.
D
2.What was the biggest challenge for the Sky Railway
( )
A. The length was out of imagination.
B. The air there was too thin.
C. The ecosystem was too delicate.
D. The working condition was too poor.
C
3. Which of the following words can be used to describe the railway ( )
A. Vivid. B. Well-designed.
C. Delicate. D. Impossible.
B
4. Why were so many bridges built on the Sky Railway
( )
A. To prevent damage to wetland.
B. To climb up the mountains.
C. To allow animals to move safely.
D. To shorten the length of the railway.
A
5. What′s the function of thousands of sandbags along the lake ( )
A. Preventing the grassland being brushed.
B. Protecting the lake from construction waste.
C. Making a safe distinct mark for the birds.
D. Stopping the cattle and sheep running away.
B
课文呈现
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
Starting out
2
Watch 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
Understanding ideas
▼
Work in pairs and complete the quiz. Try to guess if you are not sure of the answers.
1
Quiz
1 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 into operation
a 1984.
b 2001.
c 2006.
3 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 Qinghai-Tibet Railway pass by
a Xinjiang Tianshan.
b Qinghai Hoh Xil.
c South China Karst.
Read the passage and find out why the railway is particularly special to the author.
2
The Sky
Railway
1 Sitting back in my seat，I can′t quite believe that I′m about to travel along the railway that many foreign experts 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”.
2 I 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 challenges. How to protect the delicate ecosystem was among the top concerns.
3 The first landmark to catch my eye is the splendid Qingshuihe Bridge，the world′s 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 such 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.
4 To 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 anew area in order to protect its distinct ecosystem.
5 The 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，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.
6 As 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 that 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.
7 The Qinghai-Tibet Plateau has been attracting people′s 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 deserves. It truly is an extraordinary “Sky Railway”.
Choose the author′s purpose in writing the passage and give your reasons.
3
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 workers efforts in building the Qinghai-Tibet Railway
Organise information from the passage and complete the table.
4
Challenges Solutions
To protect wild animals. 1____________________ have been built under the railway to allow the animals to 2____________________ _______________________.
Thirty-three passages
move safely and freely in their natural habitat
Challenges Solutions
To 3_____________ _________________________________. 675 bridges with 4_______________ ________________________ were built between Golmud and Lhasa.
140,000 square metres of wetland were 5____________________ in order to protect its distinct ecosystem.
prevent damage to wetlands and grasslands
a total length of about 160 kilometres
moved to a new area
Challenges Solutions
To make sure the workers stayed healthy. 6__________________________ were constructed.
The workers also enjoyed 7_____ _________________ in order to protect its distinct in lower areas.
Several oxygen-making stations
regular breaks
Challenges Solutions
To 8______________ _________________. Thousands and thousands of sandbags were used to 9_______ __________________________ along the lake to 10___________ __________________________.
protect Cuona Lake
build a twenty-kilometre wall
protect it from construction waste
The above table explains how the “impossible” railway was built. Now do some online research to find out what other challenges were met and overcome by the railway workers.
Think Share
1 Which of the solutions are you most impressed by Why
2 Which words in the passage are used to describe the Qinghai-Tibet Railway What other words could you think of to describe it
3 What changes do you think the Qinghai-Tibet Railway has brought to the people living along the railway
4 What method did you use to collect information How did the information help you to better understand the passage
考点精讲
重点词汇
1. The words“railways like massive dragons are winding among the mountains” seem particularly vivid as I travel across the “roof of the world”.
当我穿越“世界屋脊”时，“铁路像巨龙盘旋在山间”这几个字显得特别生动。
【词汇精讲】
wind 意为“蜿蜒”；另外还有“缠绕；上发条；使喘不过气来”等意。
Eg. This trail is one of the old roads that wind through untold miles of forest.
这条小路是蜿蜒穿插在未知的绵延数英里的森林中古老的道路之一。
My watch has run down. I must have forgotten to wind it.
我的表停了，一定是忘记上发条了。
【词汇拓展】
wind up 上发条；(指人)终于到达某处，安顿；
使结束(讲话等)；把……(尤指车窗)摇上
wind sth into a ball 把……绕成一团
wind one′s way 蜿蜒前进
wind down (指钟表)慢下来后停住；使(业务、活动等)逐步结束；把……(汽车窗玻璃等)摇下
Eg. It′s time to wind things up —I have an appointment with a client.
该结束了——我还约了个客户。
The stream winds its way through the village.
小溪弯弯曲曲地流过村庄。
【迁移应用】
一、单句语法填空
(1) He _______ (wind) the bandage tightly round his ankle.
(2) Before I wind _____ ，I′d like to make one final point.
(3) She wound ________ the driver′s window and called to him.
wound
up
down
2. How to protect the delicate ecosystem was among the top concerns.
如何保护脆弱的生态系统是人们最关心的问题之一。
【词汇精讲】
本句中的 protect 为及物动词，意为“保护”。
Eg. In outer space astronauts cannot take off their spacesuits，which protect them and provide oxygen.
在外太空，宇航员不能脱下宇航服，因为宇航服可以保护他们并给他们提供氧气。
【词汇拓展】
protection n.保护；防卫
protective adj.保护的；防护的
protect...from/against ...保护……免遭……
under the protection of 在……的保护下
Eg. Such a diet is widely believed to offer protection against a number of cancers.
这种饮食结构被广泛认为可以预防多种癌症。
A long thin wool coat and a purple headscarf protected her against the wind.
一件薄薄的羊毛长外套和一条紫色的头巾为她挡风。
【易混辨析】
defend/guard/protect
defend 指“保卫，防御”，可指战争时候的防御阵地，也可指在体育比赛中的防守
guard 指“守卫，监视或戒备”，通常侧重指警惕性非常高的防卫或戒备潜在的危险
protect 指“保护……以免遭受危险或伤害等”，强调“保护”作用
【迁移应用】
一、选词填空：defend，guard，protect
(1) We should _________ our eyes from too strong sunlight.
(2) They __________ very well in that game.
(3) Several dogs __________ the house against strangers.
protect
defended
guard
3. Located at over 5,000 metres above sea level，this is the highest railway station in the world.
这是世界上海拔最高的火车站，海拔5 000多米。
【词汇精讲】
句中的 located 是形容词，意为“坐落在，位于”。
Eg. The house is conveniently located within the town centre.
该住宅位于市镇中心，很是方便。
This city is located on the southern fringe of the desert.
这个城市处于沙漠南缘。
【词汇拓展】
locate v.找出；设置；位于
be located at 位于……位置
location n.位置；地点
on location 外景拍摄
locational adj. 位置上的
Eg. It′s also within these cells that culture and leisure equipments will be located at，such as museums，theatres，etc.
在这些单元中也设立文化和休闲设施，如博物馆、剧院等。
The first thing he looked at was his office′s location.
他首先看的是他办公室的位置。
【迁移应用】
一、完成句子
(1) 该山谷住宅可以建立在任何地方，即使很小的场地也能容得下。
The Valley House can ________________ any areas， constrained by a small site
be located at
(2) 这部影片的外景完全是在意大利拍摄的。
The movie was shot entirely on ____________ in Italy.
(3) 在农村地区创办企业享有税收减免。
There are tax breaks for businesses that ____________ rural areas.
location
locate in
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.
在这样的地方，稀薄的空气、多变的天气和高强度的紫外线辐射可能是铁路工人面临的最大挑战。
【词汇精讲】句中的 present 是动词，意为“呈现”。
Eg. All the methods presented have some limitations.
给出的所有方法都有一些局限性。
【词汇拓展】
present n.现在；目前
adj.出席的；在场的；现在的；目前的
at the present time＝at present＝now 目前；现在
be present at 出席
present sth to sb＝present sb with sth
把…交给；把…授予…
present sb to sb 把某人介绍/引见给某人
Eg. The principal presented a diploma to each of the graduates.
＝The principal presented each of the graduates with a diploma.
校长把毕业证书授予了每一位毕业生。
None could witness that he was present.
没有人能证明他是在场的。
【名师点睛】
present 作为形容词作定语时，意为“在场的，出席的”，放在被修饰词的后面；而作“现在的，目前的”讲时，放在被修饰词的前面。
【迁移应用】
一、完成句子
(1) 校规要求我们必须按时到校。
The school regulations require us __________________ school on time.
be present at
(2) 他送给她一束用旧报纸包着的花。
He __________________ a bunch of flowers wrapped in newspaper.
(3) 我把你引见给我的朋友，好吗
May I ___________ you _______ my friend
presented her with
present
to
5. Guona Lake is so close to the railway that I want to reach out and touch its pale blue mirror-like surface.
国纳湖离铁路那么近，近得让我想伸手去摸一下它淡蓝色的镜子般的湖面。
【词汇精讲】
本句中的动词词组 reach out为不及物动词词组，意为“伸出”，其后不接宾语，也可用作及物动词词组，加hand，arm 等。
Eg. I wanted to reach out my hand to touch her.
我想伸手碰碰她。
【词汇拓展】
reach out to 把手伸向，表示愿意提供援助
reach out for 伸手去拿；急切寻求
reach for 伸手去拿
Eg. Reach out to people who would harm you.
去帮助那些很有可能会伤害你的人。
Some people reach out for support from others and find comfort in good memories.
一些人会向他人寻求帮助或是在甜美的回忆之中寻求安慰。
Or consider this：I reach for a cup to have a drink.
或者思考一下这个问题：我伸手去拿一只水杯想喝水。
【迁移应用】
一、完成句子
(1) 我们要有足够的自信，向他们伸出我们的手。
We should be confident enough to ______________ them.
(2) 他没有伸手去拿书。
He did not ________________ a book.
reach out to
reach out for
重点句式
1. Sitting back in my seat，I can′t quite believe that I′m about to travel along the railway that many foreign experts claimed was “impossible”.
坐在座位上，我不敢相信我即将沿着曾被许多外国专家称作是“不可能(建成)的”铁路旅行。
【句式剖析】
这是一个复合句。其中 Sitting back in my seat 是动词 –ing 形式短语，作伴随状语。主句中第一个 that 引导宾语从句，作 believe 的宾语。第二个that引导定语从句，修饰前面的the railway。
【句式拓展】
动词 –ing 形式作状语：
(1) 动词-ing形式作状语时，可根据其意义在其前面加上相应的连词when/while/though/if/once/even if/as long as/unless/until/since 等，表示更加明确的含义。
(2) 在绝大多数情况下，动词-ing形式的逻辑主语就是句子的主语。
(3) 有少数动词 –ing 形式 (短语) 并不表示句子主语的动作，而是表示说话人的态度，被称为分词的独立成分。常用的这类独立成分有：generally speaking；according to；judging from/by；considering；frankly speaking；taking...into consideration；seeing；supposing；providing that；assuming that。
Eg. Once losing this chance，you can′t easily find it.
一旦失去这次机会，你就很难找回。
Judging from his expression，he doesn′t know the news.
从表情上来看，他还不知道这个消息。
【迁移应用】
一、完成句子
(1) 当那个小职员看到一张善良的面孔泛起皱纹并歉意地一笑时，她像生了根一样站在那儿，不知道是走还是留。
When the clerk saw a kind face wrinkled in an apologetic smile，she stood rooted to the ground，______________ ______________________________________________.
wondering whether to stay or leave
(2) 像古代的水手一样，鸟能利用太阳和星辰来找到它们的路。
Like ancient sailors，birds can find their way ________ _____________________________________________.
(3) 工作了两天，史蒂夫成功地按时完成了他的报告。
_____________________________，Steve managed to finish his report on schedule.
using the sun and the stars
Having worked for two days
(4) 新建的木屋林立在街道的两旁，使古镇变成了一个梦幻之地。
Newly-built wooden cottages line the street，________ ____________________________________________.
turning the old town into a dreamland
2. A group of Tibetan antelopes is moving under the bridge，with some stopping to eat grass at their leisure.
一群藏羚羊在桥下活动，有些在闲暇时停下来吃草。
【句式剖析】
句中的 with some stopping to eat grass at their leisure是with 的复合结构，作伴随状语。
Eg. With the crowds cheering，they drove to the palace.
在人群的欢呼声中，他们驱车来到皇宫。
She had to walk home with her bike stolen.
自行车被偷了，她只好步行回家。
【句式拓展】
with 复合结构的常见形式
with ＋名词 (代词) ＋动词-ing形式
with ＋名词 (代词) ＋过去分词
with＋名词 (代词)＋形容词
with＋名词 (代词)＋介词短语
with＋名词 (代词)＋副词
with＋名词 (代词)＋动词不定式
【迁移应用】
一、完成句子
(1) 因为还有很多工作要做，他没有被允许外出。
___________________，he wasn′t allowed to go out.
(2) 这个男孩低头站在那儿。
The boy stood there _____________________.
With a lot of work to do
with his head down
(3) 我在房间坐了一会儿，眼睛盯着天花板。
I sat in my room for a few minutes _________________ _____________________________________________.
(4)由于物价上涨很快，我们买不起奢侈品。
_____________________________，we can′t afford luxuries.
with my eyes fixed on the ceiling
With prices going up so fast
(5) 由于孩子们在上学，当我们想度假时却不能去。
__________________________，we can′t take our vacation when we want to.
With the children at school
随堂练习
一、课文语法填空
I am travelling in a train 1.___________ (race) across the “roof of the world”，which was claimed “impossible” by foreign experts.
racing
I was one of the builders who have taken years 2._________ (complete) the Qinghai-Tibet Railway after overcoming the most difficult engineering challenges，the 3._______ (big) of which is to protect the delicate ecosystems.
to complete
biggest
What comes into my eyesight first is Qingshuihe Bridge，the world′s longest bridge 4.____________ (build) over permafrost，under 5.____________ thirty-three passages have been built in order to allow wild animals to move 6. ____________ (free) and safely in their natural habitat. Besides，675 bridges were built to protect wetlands and grasslands.
built
which
freely
Soon we have reached at Tanggula Station，7.___________ highest in the world，where the thin air，8. ____________ (change) weather and high levels of UV radiation presented the greatest challenges for railway workers. While passing Cuona Lake，I feel proud because we use many sandbags to protect it 9._____________being polluted.
the
changeable
from
For centuries，people 10.___________________ (admire) the Qinghai-Tibet Plateau，and now more tourists from the world can enjoy its beauty by the “Sky Railway”.
have been admiring
二、概要写作
根据课文内容写一篇60词左右的内容概要。
参考范文：
I was travelling the railway across the “roof of the world”，which took years to complete.(要点1) The railway is a record of all of the efforts to overcome the engineering challenges.(要点2)
Many bridges were designed for the Tibetan antelopes to move safely. We even moved wetlands to a new area. Meanwhile，the thin air，changeable weather and high levels of UV radiation would threaten the workers.(要点3) But today，to our relief，the railway deserves our efforts.(要点4)
本课结束
This lesson is over
THANKS!
Unit 6 Nurturing nature
Section A Starting out & Understanding ideas
课前预习
知识体系图解
一、重点词汇
1.____________adv.平稳地
2.____________adj.脆弱的
3.____________adj.壮丽的
4.____________n.空闲，闲暇
steadily
delicate
splendid
leisure
5. __________ n.辐射
6. massive adj.____________________
7. landmark n._____________________
8. mirror-like adj.___________________
9. wander v._______________________
10. scenery n._______________________
radiation
巨大的
地标
如镜面般的
徘徊
风景，景色
二、重点短语
1. 投入运行 __________________________
2. 吸引眼球 __________________________
3. 闲暇时 ____________________________
4. 一种自豪感 ________________________
5. 靠近 ______________________________
be put into operation
catch one′s eyes
at one′s leisure
a sense of pride
be close to
6. be located at _________________________
7. above sea level _______________________
8. reach out ___________________________
9. bring...to life ________________________
10. thanks to ___________________________
位于
海平面以上
伸手去够
使……焕发生机
幸亏，由于
三、重点句式
1. Sitting back in my seat，I can′t quite believe that I’m about to travel along the railway that many foreign experts claimed was “impossible”.
2. A group of Tibetan antelopes is moving under the bridge，with some stopping to eat grass at their leisure.
词汇拓展
1. massive→(n.)_____________
2. delicate→(adv.)____________
3. leisure→(adj.)_____________
4. radiation → (v.)_____________
→ (adj.)____________→(n.)______________
mass
delicately
leisurely
radiate
radiant
adiance
5.wander→(n.)_____________
6.scenery(n.)_______________→(adj.)______________
7.economy→(adj.)_______________
8.disturb→(n.)_____________→(adj.)_______________
9.emission→(v.)__________________
10.operator→(v.)__________________
11.conservationist→(n.)____________→(v.)___________
wanderer
scene
scenic
economic
disturbance
disturbing
emit
operate
conservation
conserve
阅读导学
根据课文内容，回答下列问题。
1. What did the author do several years ago ( )
A. He was a singer.
B. He was a composer.
C. He was a journalist.
D. He was a worker on the Sky Railway.
D
2.What was the biggest challenge for the Sky Railway
( )
A. The length was out of imagination.
B. The air there was too thin.
C. The ecosystem was too delicate.
D. The working condition was too poor.
C
3. Which of the following words can be used to describe the railway ( )
A. Vivid. B. Well-designed.
C. Delicate. D. Impossible.
B
4. Why were so many bridges built on the Sky Railway
( )
A. To prevent damage to wetland.
B. To climb up the mountains.
C. To allow animals to move safely.
D. To shorten the length of the railway.
A
5. What′s the function of thousands of sandbags along the lake ( )
A. Preventing the grassland being brushed.
B. Protecting the lake from construction waste.
C. Making a safe distinct mark for the birds.
D. Stopping the cattle and sheep running away.
B
课文呈现
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
Starting out
2
Watch 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
Understanding ideas
▼
Work in pairs and complete the quiz. Try to guess if you are not sure of the answers.
1
Quiz
1 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 into operation
a 1984.
b 2001.
c 2006.
3 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 Qinghai-Tibet Railway pass by
a Xinjiang Tianshan.
b Qinghai Hoh Xil.
c South China Karst.
Read the passage and find out why the railway is particularly special to the author.
2
The Sky
Railway
1 Sitting back in my seat，I can′t quite believe that I′m about to travel along the railway that many foreign experts 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”.
2 I 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 challenges. How to protect the delicate ecosystem was among the top concerns.
3 The first landmark to catch my eye is the splendid Qingshuihe Bridge，the world′s 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 such 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.
4 To 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 anew area in order to protect its distinct ecosystem.
5 The 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，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.
6 As 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 that 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.
7 The Qinghai-Tibet Plateau has been attracting people′s 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 deserves. It truly is an extraordinary “Sky Railway”.
Choose the author′s purpose in writing the passage and give your reasons.
3
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 workers efforts in building the Qinghai-Tibet Railway
Organise information from the passage and complete the table.
4
Challenges Solutions
To protect wild animals. 1____________________ have been built under the railway to allow the animals to 2____________________ _______________________.
Thirty-three passages
move safely and freely in their natural habitat
Challenges Solutions
To 3_____________ _________________________________. 675 bridges with 4_______________ ________________________ were built between Golmud and Lhasa.
140,000 square metres of wetland were 5____________________ in order to protect its distinct ecosystem.
prevent damage to wetlands and grasslands
a total length of about 160 kilometres
moved to a new area
Challenges Solutions
To make sure the workers stayed healthy. 6__________________________ were constructed.
The workers also enjoyed 7_____ _________________ in order to protect its distinct in lower areas.
Several oxygen-making stations
regular breaks
Challenges Solutions
To 8______________ _________________. Thousands and thousands of sandbags were used to 9_______ __________________________ along the lake to 10___________ __________________________.
protect Cuona Lake
build a twenty-kilometre wall
protect it from construction waste
The above table explains how the “impossible” railway was built. Now do some online research to find out what other challenges were met and overcome by the railway workers.
Think Share
1 Which of the solutions are you most impressed by Why
2 Which words in the passage are used to describe the Qinghai-Tibet Railway What other words could you think of to describe it
3 What changes do you think the Qinghai-Tibet Railway has brought to the people living along the railway
4 What method did you use to collect information How did the information help you to better understand the passage
考点精讲
重点词汇
1. The words“railways like massive dragons are winding among the mountains” seem particularly vivid as I travel across the “roof of the world”.
当我穿越“世界屋脊”时，“铁路像巨龙盘旋在山间”这几个字显得特别生动。
【词汇精讲】
wind 意为“蜿蜒”；另外还有“缠绕；上发条；使喘不过气来”等意。
Eg. This trail is one of the old roads that wind through untold miles of forest.
这条小路是蜿蜒穿插在未知的绵延数英里的森林中古老的道路之一。
My watch has run down. I must have forgotten to wind it.
我的表停了，一定是忘记上发条了。
【词汇拓展】
wind up 上发条；(指人)终于到达某处，安顿；
使结束(讲话等)；把……(尤指车窗)摇上
wind sth into a ball 把……绕成一团
wind one′s way 蜿蜒前进
wind down (指钟表)慢下来后停住；使(业务、活动等)逐步结束；把……(汽车窗玻璃等)摇下
Eg. It′s time to wind things up —I have an appointment with a client.
该结束了——我还约了个客户。
The stream winds its way through the village.
小溪弯弯曲曲地流过村庄。
【迁移应用】
一、单句语法填空
(1) He _______ (wind) the bandage tightly round his ankle.
(2) Before I wind _____ ，I′d like to make one final point.
(3) She wound ________ the driver′s window and called to him.
wound
up
down
2. How to protect the delicate ecosystem was among the top concerns.
如何保护脆弱的生态系统是人们最关心的问题之一。
【词汇精讲】
本句中的 protect 为及物动词，意为“保护”。
Eg. In outer space astronauts cannot take off their spacesuits，which protect them and provide oxygen.
在外太空，宇航员不能脱下宇航服，因为宇航服可以保护他们并给他们提供氧气。
【词汇拓展】
protection n.保护；防卫
protective adj.保护的；防护的
protect...from/against ...保护……免遭……
under the protection of 在……的保护下
Eg. Such a diet is widely believed to offer protection against a number of cancers.
这种饮食结构被广泛认为可以预防多种癌症。
A long thin wool coat and a purple headscarf protected her against the wind.
一件薄薄的羊毛长外套和一条紫色的头巾为她挡风。
【易混辨析】
defend/guard/protect
defend 指“保卫，防御”，可指战争时候的防御阵地，也可指在体育比赛中的防守
guard 指“守卫，监视或戒备”，通常侧重指警惕性非常高的防卫或戒备潜在的危险
protect 指“保护……以免遭受危险或伤害等”，强调“保护”作用
【迁移应用】
一、选词填空：defend，guard，protect
(1) We should _________ our eyes from too strong sunlight.
(2) They __________ very well in that game.
(3) Several dogs __________ the house against strangers.
protect
defended
guard
3. Located at over 5,000 metres above sea level，this is the highest railway station in the world.
这是世界上海拔最高的火车站，海拔5 000多米。
【词汇精讲】
句中的 located 是形容词，意为“坐落在，位于”。
Eg. The house is conveniently located within the town centre.
该住宅位于市镇中心，很是方便。
This city is located on the southern fringe of the desert.
这个城市处于沙漠南缘。
【词汇拓展】
locate v.找出；设置；位于
be located at 位于……位置
location n.位置；地点
on location 外景拍摄
locational adj. 位置上的
Eg. It′s also within these cells that culture and leisure equipments will be located at，such as museums，theatres，etc.
在这些单元中也设立文化和休闲设施，如博物馆、剧院等。
The first thing he looked at was his office′s location.
他首先看的是他办公室的位置。
【迁移应用】
一、完成句子
(1) 该山谷住宅可以建立在任何地方，即使很小的场地也能容得下。
The Valley House can ________________ any areas， constrained by a small site
be located at
(2) 这部影片的外景完全是在意大利拍摄的。
The movie was shot entirely on ____________ in Italy.
(3) 在农村地区创办企业享有税收减免。
There are tax breaks for businesses that ____________ rural areas.
location
locate in
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.
在这样的地方，稀薄的空气、多变的天气和高强度的紫外线辐射可能是铁路工人面临的最大挑战。
【词汇精讲】句中的 present 是动词，意为“呈现”。
Eg. All the methods presented have some limitations.
给出的所有方法都有一些局限性。
【词汇拓展】
present n.现在；目前
adj.出席的；在场的；现在的；目前的
at the present time＝at present＝now 目前；现在
be present at 出席
present sth to sb＝present sb with sth
把…交给；把…授予…
present sb to sb 把某人介绍/引见给某人
Eg. The principal presented a diploma to each of the graduates.
＝The principal presented each of the graduates with a diploma.
校长把毕业证书授予了每一位毕业生。
None could witness that he was present.
没有人能证明他是在场的。
【名师点睛】
present 作为形容词作定语时，意为“在场的，出席的”，放在被修饰词的后面；而作“现在的，目前的”讲时，放在被修饰词的前面。
【迁移应用】
一、完成句子
(1) 校规要求我们必须按时到校。
The school regulations require us __________________ school on time.
be present at
(2) 他送给她一束用旧报纸包着的花。
He __________________ a bunch of flowers wrapped in newspaper.
(3) 我把你引见给我的朋友，好吗
May I ___________ you _______ my friend
presented her with
present
to
5. Guona Lake is so close to the railway that I want to reach out and touch its pale blue mirror-like surface.
国纳湖离铁路那么近，近得让我想伸手去摸一下它淡蓝色的镜子般的湖面。
【词汇精讲】
本句中的动词词组 reach out为不及物动词词组，意为“伸出”，其后不接宾语，也可用作及物动词词组，加hand，arm 等。
Eg. I wanted to reach out my hand to touch her.
我想伸手碰碰她。
【词汇拓展】
reach out to 把手伸向，表示愿意提供援助
reach out for 伸手去拿；急切寻求
reach for 伸手去拿
Eg. Reach out to people who would harm you.
去帮助那些很有可能会伤害你的人。
Some people reach out for support from others and find comfort in good memories.
一些人会向他人寻求帮助或是在甜美的回忆之中寻求安慰。
Or consider this：I reach for a cup to have a drink.
或者思考一下这个问题：我伸手去拿一只水杯想喝水。
【迁移应用】
一、完成句子
(1) 我们要有足够的自信，向他们伸出我们的手。
We should be confident enough to ______________ them.
(2) 他没有伸手去拿书。
He did not ________________ a book.
reach out to
reach out for
重点句式
1. Sitting back in my seat，I can′t quite believe that I′m about to travel along the railway that many foreign experts claimed was “impossible”.
坐在座位上，我不敢相信我即将沿着曾被许多外国专家称作是“不可能(建成)的”铁路旅行。
【句式剖析】
这是一个复合句。其中 Sitting back in my seat 是动词 –ing 形式短语，作伴随状语。主句中第一个 that 引导宾语从句，作 believe 的宾语。第二个that引导定语从句，修饰前面的the railway。
【句式拓展】
动词 –ing 形式作状语：
(1) 动词-ing形式作状语时，可根据其意义在其前面加上相应的连词when/while/though/if/once/even if/as long as/unless/until/since 等，表示更加明确的含义。
(2) 在绝大多数情况下，动词-ing形式的逻辑主语就是句子的主语。
(3) 有少数动词 –ing 形式 (短语) 并不表示句子主语的动作，而是表示说话人的态度，被称为分词的独立成分。常用的这类独立成分有：generally speaking；according to；judging from/by；considering；frankly speaking；taking...into consideration；seeing；supposing；providing that；assuming that。
Eg. Once losing this chance，you can′t easily find it.
一旦失去这次机会，你就很难找回。
Judging from his expression，he doesn′t know the news.
从表情上来看，他还不知道这个消息。
【迁移应用】
一、完成句子
(1) 当那个小职员看到一张善良的面孔泛起皱纹并歉意地一笑时，她像生了根一样站在那儿，不知道是走还是留。
When the clerk saw a kind face wrinkled in an apologetic smile，she stood rooted to the ground，______________ ______________________________________________.
wondering whether to stay or leave
(2) 像古代的水手一样，鸟能利用太阳和星辰来找到它们的路。
Like ancient sailors，birds can find their way ________ _____________________________________________.
(3) 工作了两天，史蒂夫成功地按时完成了他的报告。
_____________________________，Steve managed to finish his report on schedule.
using the sun and the stars
Having worked for two days
(4) 新建的木屋林立在街道的两旁，使古镇变成了一个梦幻之地。
Newly-built wooden cottages line the street，________ ____________________________________________.
turning the old town into a dreamland
2. A group of Tibetan antelopes is moving under the bridge，with some stopping to eat grass at their leisure.
一群藏羚羊在桥下活动，有些在闲暇时停下来吃草。
【句式剖析】
句中的 with some stopping to eat grass at their leisure是with 的复合结构，作伴随状语。
Eg. With the crowds cheering，they drove to the palace.
在人群的欢呼声中，他们驱车来到皇宫。
She had to walk home with her bike stolen.
自行车被偷了，她只好步行回家。
【句式拓展】
with 复合结构的常见形式
with ＋名词 (代词) ＋动词-ing形式
with ＋名词 (代词) ＋过去分词
with＋名词 (代词)＋形容词
with＋名词 (代词)＋介词短语
with＋名词 (代词)＋副词
with＋名词 (代词)＋动词不定式
【迁移应用】
一、完成句子
(1) 因为还有很多工作要做，他没有被允许外出。
___________________，he wasn′t allowed to go out.
(2) 这个男孩低头站在那儿。
The boy stood there _____________________.
With a lot of work to do
with his head down
(3) 我在房间坐了一会儿，眼睛盯着天花板。
I sat in my room for a few minutes _________________ _____________________________________________.
(4)由于物价上涨很快，我们买不起奢侈品。
_____________________________，we can′t afford luxuries.
with my eyes fixed on the ceiling
With prices going up so fast
(5) 由于孩子们在上学，当我们想度假时却不能去。
__________________________，we can′t take our vacation when we want to.
With the children at school
随堂练习
一、课文语法填空
I am travelling in a train 1.___________ (race) across the “roof of the world”，which was claimed “impossible” by foreign experts.
racing
I was one of the builders who have taken years 2._________ (complete) the Qinghai-Tibet Railway after overcoming the most difficult engineering challenges，the 3._______ (big) of which is to protect the delicate ecosystems.
to complete
biggest
What comes into my eyesight first is Qingshuihe Bridge，the world′s longest bridge 4.____________ (build) over permafrost，under 5.____________ thirty-three passages have been built in order to allow wild animals to move 6. ____________ (free) and safely in their natural habitat. Besides，675 bridges were built to protect wetlands and grasslands.
built
which
freely
Soon we have reached at Tanggula Station，7.___________ highest in the world，where the thin air，8. ____________ (change) weather and high levels of UV radiation presented the greatest challenges for railway workers. While passing Cuona Lake，I feel proud because we use many sandbags to protect it 9._____________being polluted.
the
changeable
from
For centuries，people 10.___________________ (admire) the Qinghai-Tibet Plateau，and now more tourists from the world can enjoy its beauty by the “Sky Railway”.
have been admiring
二、概要写作
根据课文内容写一篇60词左右的内容概要。
参考范文：
I was travelling the railway across the “roof of the world”，which took years to complete.(要点1) The railway is a record of all of the efforts to overcome the engineering challenges.(要点2)
Many bridges were designed for the Tibetan antelopes to move safely. We even moved wetlands to a new area. Meanwhile，the thin air，changeable weather and high levels of UV radiation would threaten the workers.(要点3) But today，to our relief，the railway deserves our efforts.(要点4)
本课结束
This lesson is over
THANKS!