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(共21张PPT)
新外研社高中英语
选择性必修一
Unit6 Nurturing nature
Understanding Ideas
Para.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”.
Para.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.
Para.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.
Para.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 a new area in order to protect its distinct ecosystem.
Para.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.
Para.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.
Para.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”.
1. Mark the places the author passed and mentioned in his journey.
Xi Ning
Qingshuihe Bridge
Golmud
Tanggula
Cuona Lake
Lhasa
Fast-reading
While-reading: pair work (4mins)
The traveling route of the railway.
Task1.Which order is the passage based on
a.Time order
b.Space order
c.Development of the story
Read for structure
Match the main idea and divide the article into different parts.
Para 1
Para 2
Para 3
Para 4
Para 5
Para 6
Para 7
A. How to prevent damage to wetlands and grasslands.
B. How to protect Cuona Lake.
C. The train leaves Xining.
D. How to protect wild animals.
E. We consider protecting the delicate eco-system first.
F. How to make sure the workers stayed healthy.
G. I'm proud we built our"Sky Railway".
C
D
E
F
B
G
A
Introduction
Body
Conlusion
Read for contents
Para 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”.
Questions:
1. Many foreign experts claimed the Qinghai-Tibet Railway was _________ .
2. Find details that show the author's feelings.
3.What's the function of Para. 1 in picturing the author's journey
impossible
It sets both the background of the journey and the emotional atmosphere of the rest of the passage.
Read for contents
Para 2: Taking years to complete, the Qinghai-Tibet Railway is a record of all of our efforts to overcome the most difficult engineering challenges.
Para 3
What is the challenge
What is the solution
To protect the wild animals
Thirty-three passages have been built under the railway to allow the animals to move safely and freely in their natural habitat.
1.A group of Tibetan antelopes is moving under the bridge, with some stopping to eat grass at their leisure.
2.They seem totally unaware that we are speeding past at over 100
kilometres.
Human beings live in harmony with wildlife.
Read for contents
Para 4
What is the challenge
What is the solution
To prevent damage to wetlands and grasslands
675 bridges with a total length of about 160 kilometres were built between Golmud and Lhasa.
140,000 square metres of wetland were moved to a new area in order to protect its distinct ecosystem.
The engineers and workers make great effort to build the railway as well as protect the environment and wild animals along the way.
Read for contents
Para 5
What is the challenge
What is the solution
To make sure the workers stayed healthy.
Several oxygen-making stations were constructed.
The workers also enjoyed regular breaks in lower areas.
Located at over 5,000 metres above the sea level, the highest railway station in the world
The thin air ,changeable weather and high levels of UV radiation
Read for contents
Para 6
What is the challenge
What is the solution
To protect Cuona Lake
Thousands and thousands of sandbags were used to build a twenty-kilometre wall along the lake to protect it from construction waste.
Water birds playing in the lake, and cattle and sheep wandering the grasslands bring the scenery to life.
Read for contents
Para 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”.
Question:
What makes the author feel proud
A. We built the"impossible"railway.
B. We protected the ecosystem.
C. We built the“impossible"railway,not destroy the ecosystem.
D. Passengers call it "Sky Railway".
Choose the author's purpose in writing the passage.
1. To prove that humans can conquer nature.
2. To highlight the amount(量，数量）of work required to build the Qinghai-Tibet Railway.
3. To praise the workers' efforts in building the Qinghai-Tibet Railway.
Read for writing techniques
Write a short passage .
Workers on "The Sky Railway" have made great efforts on protecting nature when constructing the railway,so we can reach Tibet as well as appreciating the beautiful scenery and amazing animals along the way.However, we can also see that some human behaviors have damaged nature in our daily,causing severe consequences. So as a high school student, what can we do to promote harmony between man and nature in our daily life
What can we do
Read for writing techniques
Write a short passage with the following structure.
I am impressed by the efforts made by the workers of "The Sky Railway", they overcame all kinds of difficulties and completed the construction of the Qinghai-Tibet railway under very difficult conditions.
As a senior high student, I feel a sense of responsibility to take part in protecting nature. Firstly/To begin with, we should ,because...;Secondly/What's more/In addition, it is a good idea for us to...,which... ; Lastly/ Finally..., Ving (reducing our carbon foot print is an effective way to protect the environment)
All in all,...
Writing techniques
use examples
use cohesive words
pay attention to the structure
Homework
Polish your writing .

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