内容正文:
英语外研版八年级下册
Living with nature
Developing ideas (2)
Unit 6
通过本课时的学习,学生能够:
1. 读懂介绍吐鲁番坎儿井的文章,获取坎儿井的结构、功能和重要性等关键信息。
2. 了解坎儿井的运作方式和重要意义,建立信息间的逻辑联系。
3. 感受中国古代劳动人民的智慧,了解人类合理改造自然的方式,进一步理解人与自然和谐共生的理念。
重点
Learning objectives
重点
Watch the video about the karez system(坎儿井) and answer the question.
Watch and answer
What do you think of it?
It is amazing!
What’s the environment like?
Look at the pictures and answer the questions. Use the words and expression to help you.
The environment is a desert, so it has a hot and dry climate. There is little rainfall, so the area faces a water shortage. It is difficult to survive here.
Look and say
How does the system work?
Look at the pictures and answer the questions. Use the words and expression to help you.
The project uses wells and underground canals to protect water from drying up. The water runs to different places.
It allows people to grow plants for food in such a difficult environment.
Look and say
What’s the passage probably about?
Look and predict
Look at the pictures and read the title. Then predict.
It may introduce the karez system.
The location of the Flaming Mountains
The climate of the area
The challenge and future of the system
The way the karez system works and its importance
Read and match
Read and match the subtitles with the paragraphs.
Read the first paragraph and answer the questions.
1. In what famous story are the Flaming Mountains mentioned?
2. Where are the real Flaming Mountains?
Journey to the West.
They are in Turpan, in the east of the Xinjiang Uygur Autonomous Region.
Read and answer
Read the second paragraph and answer the questions.
1. How hot can the desert sand be in mid-summer?
2. What is the annual rainfall in Turpan?
It can be as hot as 80°C in mid-summer.
It’s only 16 mm.
Read and answer
Read the third paragraph and answer the questions.
It includes more than 1,000 wells and large underground canals. Water from the mountains falls into the wells and then runs underground in the canals. It is kept cool and safe from the desert heat.
It was built with only hand tools.
3. How was the karez system built?
1. How does the karez system work?
2. How long are the underground canals?
They are over 5,000 km long, nearly as long as the Yellow River.
Read and answer
Read the fourth paragraph and answer the questions.
2. What are the reasons for the problem today?
There is less water from the mountains, lower rainfall and a large increase in water use.
1. What problem does the area face now?
The area faces a water shortage.
Read and answer
Complete the diagram with the words and expressions from the passage.
runs underground
hottest areas
climate
wells
underground
driest place
cool and safe
Read and complete
top three projects
water shortage
protect
grow plants for food
Read and draw
Read the third paragraph again and draw a simple picture of the karez system to show how it works.
Well
Ice and snow melt water
The karez system
Mouth of the well
Gobi
Underground canal
Oasis(绿洲)
Reservoir(蓄水池)
Read and discuss which sentence shows fact and which shows opinion.
1. The desert sand can be as hot as 80 ℃ in midsummer.
2. That’s enough to make your feet burn!
Fact
Opinion
Read and discuss
Work in groups and find other facts and opinions in the passage.
Read and discuss
They are in Turpan, in the east of the Xinjiang Uygur Autonomous Region.
Rainfall in Turpan is only 16 mm a year.
There are over 5,000 km of underground canals in the area.
…
It may sound crazy, but the locals can cook an egg on the desert sand.
That’s nearly as long as the Yellow River!
The centuries-old water system will surely be carried into the future.
…
Facts
Opinions
1. Why does the writer mention“the Flaming Mountains” at the beginning?
To attract readers’ attention and make them interested in reading on.
It tells us that Turpan is very hot.
It means the karez system is like a hidden “river” that brings life to Turpan’s deadly desert. It quietly carries water underground so people can survive and grow food in the terrible climate.
2. What can you tell about Turpan from “cook an egg on the desert sand”?
3. What’s the meaning of the title?
Think and share
1. What fact from the passage do you find the most interesting? Why?
I think the most interesting part is that the system is completed with only hand tools. The canals are so long and there are so many wells. It is difficult to do the work with machines, but using hand tools is even more difficult.
I think it is necessary to keep the karez system. Although modern technology can solve some problems, the karez system still plays an important role in the area. We can use both modern technology and the karez system to improve the living environment.
2. With modern technology, do you think it is still necessary to keep the karez system? Why or why not?
Further thinking
1. It may sound crazy, but the locals can cook an egg on the desert sand.
这听起来可能很疯狂,但当地人可以在沙漠的沙子上煎鸡蛋。
crazy adj. 疯狂的
常见搭配:be crazy about “对…… 着迷;热衷于……”.
同义短语:be mad about
You must be crazy to lend him money.
你把钱借给他,一定是疯了。
He is crazy about playing football, and he plays it every day after school.
他热衷于踢足球,每天放学后都踢。
Language points
2. How do people survive in such a terrible climate?人们是如何在这种恶劣气候中生存的?
survive v. 活下来;幸存 。常与介词 for 连用,表示 “存活多长时间”。
survive + 灾难/事故 在…… 中幸存;从…… 活下来;
survive in + 地点/环境 在…… 环境里生存、活下去
Only a few plants survived the heavy storm.
只有少数植物在暴风雨中存活了下来。
We need to take enough food if we want to survive for a week in the mountains.我们如果想在山里存活一周,就需要带足够的食物。
Language points
3. No wonder it's among the top three projects of ancient China.
难怪它被列为中国古代三大工程之一。
among prep. 是……之一
Language points
【辨析】among与between
among 表示“在三者或三者以上的人或事物之间”,其宾语通常是一个表示笼统数量或具有复数意义的名词或代词
between 表示“在两者之间”,常与 and 连用
表示在三者或三者以上的人或事物中的“每两个之间”
Language points
Tom sits among his family.
汤姆坐在他的家人中间。
Tom sits between his father and mother.
汤姆坐在父母之间。
The medicine should be taken between three meals.
这种药应该在三餐之间服用。(每两餐之间)
4. There is less water from the mountains, lower rainfall and a large increase in water use. 来自山区的水资源减少、降雨量更低,而用水量却大幅增加。
常见搭配:a sharp increase 急剧增加;on the increase 在增加,在上升
There was a sharp increase in traffic after the new road opened. 新路开通后,交通量急剧增加。
In summer, the use of air conditioners is on the increase because it gets hotter.夏天,由于天气变热,空调的使用量正在增加。
Language points
increase 还可以作动词,意为 “增加;增长”。
Language points
Compared with last month, our output has increased by three times.
与上个月相比,我们的产量增长了三倍。
Our output has increased to 6 million tons this year.
今年,我们的产量增长到了 600 万吨。
【辨析】increase by与increase to
increase by “增长了……”,后接倍数、百分数等,指增幅
increase to “增长到……”,后接具体的数字,指增长节点
Search more information about the karez system and improve your drawing about it.
Find more stories about people changing nature, and take some notes.
Need to do
Choose to do
Homework
Thank you!
外研版八年级下册
Unit 6
Lavf58.46.101
$