Section Ⅳ “Developing ideas”的课文习读环节
泛读课文，完成以下学习任务
(一)理清文脉结构
(二)把握主旨大意
What's the main idea of the text？( )
A．History of gardening.
B．Skills of gardening.
C．Benefits of gardening.
D．Brits' love of gardening.
精读课文，完成以下学习任务
(一)阅读理解
1．What does “green fingers” mean in the first paragraph？( )
A．The fingers painted with green color.
B．The poor skills of gardening.
C．The fingers cut by green knife.
D．The super skills of gardening.
2．What do we know about the love of gardening in Britain？( )
A．Children like to see the tallest flowers.
B．Only experts can enter the competitions.
C．People enjoy working in their gardens.
D．People can find a place to plant flowers.
3．Why do people turn their rooftops into gardens？( )
A．The flowers on the rooftops are more beautiful.
B．The space that can be used is limited.
C．Too many people are waiting for the place.
D．The flowers on the rooftops improve the air quality.
4．According to the passage, which of the following is NOT the significance of gardening？( )
A．It enriches people's spiritual worlds.
B．It improves environment quality.
C．It provides people with a wonderful time.
D．It enables expert gardeners to enter competitions.
5．What do you think the last sentence in this article mean？( )
A．A thistle cannot grow because of the roses.
B．A thistle is less important than the roses.
C．Gardening can make the environment more beautiful and the minds fulfilled.
D．Gardening can cost you a lot of time and money.
[Tip]
借助句间逻辑关系推测句意
句意猜测题一般考查学生用合适的语句解释一个具有概括性的句子或格言、谚语等，解题时重在把握上下文的句间逻辑关系及上下文的语意。如第5题考查的是对文章尾段最后一句中引言的理解，首先分析其上文，作者以反问的语气表达了自己的观点：园艺能让你在享受自然的同时创造美丽。本句引言在文中是用来进一步论证这一观点，故该引言与前一句之间为同义关系，由此可推知本题答案。
(二)阅读表达
1．Why do over 4,000 people wait for the small pieces of land
2．Why does gardening do good to cities
3．Do you like gardening Why？(Answers may vary.)
|阅|读|技|能|提|升|
本文的语篇类型为事理说明文，此类文体多选用递进式结构，一层一层地剖析事理，把道理说深说透。各层之间的关系是由浅入深、由表及里、由现象到本质。如本文按以下顺序说明了英国人对园艺的喜爱：何时开始喜欢园艺的→喜欢园艺的原因→打理自己花园的方式→喜欢园艺的益处。
采用递进式结构的说明文的主旨大意多在尾段，有时行文也会采用首尾呼应的方式，此时可同时分析文章的开头和结尾来提炼主旨。如本文的开头和结尾均引用了《秘密花园》中的相关语句来烘托主题，这种首尾呼应的写作方法让文章结构更加紧密，主题更加突出。
(一)赏用词之妙
1．Each spring, children plant sunflowers and wait to see which one is the tallest.
赏析：本句描写了春天孩子们参加园艺活动的情景，动词短语wait to see写出了孩子们等候向日葵快点长成的那种迫不及待的心理。
2．Expert gardeners know just the right corner for roses, and others spend hours trying to grow perfect vegetables to enter into competitions.
赏析：前半句中的know在此有“了如指掌”的意思，写出了高明的园丁对自己的园艺技能的自信。后半句中的spend hours及perfect写出了英国人对园艺活动高涨的热情和付出的努力。
[提能训练|完成句子]
①Let's put the chalk into the water and ____________________________.
让我们把粉笔放进水中，等着看看会发生什么。
②I'd prefer to reserve judgement until ____________________.
在了解全部事实之前我不想发表意见。
③He would ______________ online until he chose ____________________.
他会在网上花几个小时直到挑选到完美的产品。
(二)赏句式之高
1．These words come from the author of the book The Secret Garden, first published in 1911.
赏析：本句中first published in 1911是过去分词短语作后置定语，进一步介绍了《秘密花园》这本书的有关情况，相当于定语从句which was first published in 1911，但是相比于从句，分词的用法令句式更凝练，表达更高效。
2．And while many Brits like nothing better than spending their Sunday cutting the grass, some are happy just to sit under the branches of the trees and enjoy the beauty of the world around them.
赏析：本句中使用了while引导让步状语从句，nothing better than属于“否定词＋比较级”表示最高级含义的用法，to sit under the branches of the trees and enjoy ...为动词不定式在句中做原因状语，各种高级句式的混用提升了表达的层次，写出了英国人对园艺的热爱以及不同的人拥有不同的享受园艺的方式。
3．Those without outside space can rent small pieces of land on which to grow things.
赏析：本句中without outside space是介词短语作定语， on which ...是“介词＋关系代词”引导的定语从句的省略结构。介词短语和省略结构的运用起到了化繁为简的作用，令表达更简洁高效。
①(完成句子)______________________________， I can see his shortcomings.
尽管我承认他的优点，但我还是能看到他的缺点。
②(句式升级)From my point of view, health is the most important thing in our daily life.
→From my point of view，____________________________________ in our daily life.
③(句式升级)We need some solid facts on which we could base our decision.
→We need some solid facts ________________ base our decision.(升级为省略句)
(三)赏修辞之功
Today, millions of Brits like to say that they have “green fingers”， with around half the population spending their free time gardening.
赏析：本句中的“green fingers” 表示“绿手指(意为擅长园艺)”，使用了借代的修辞手法，表示对喜欢园艺的人的称赞。借代修辞手法可以达到“以简代繁，以实代虚，以奇代凡，以事代情”的效果，恰当地运用该修辞手法可以让表达特点鲜明、具体生动。
[提能训练|英译汉]
①I know that his father has green fingers.
________________________________________________________________________
②Gray hair should be respected.
________________________________________________________________________
③No cross, no crown.
________________________________________________________________________
(四)赏逻辑之巧
As well as being good for the environment, gardening is also good for the soul.What other free time activity allows you to be at one with nature and create more beautiful living things And if you're in any doubt about this, take a moment to reflect on this line from The Secret Garden：“Where you tend a rose ...A thistle cannot grow.”
赏析：文中第一句作者使用了as well as及also进一步描述了园艺的优点。而后采用设问的方式引发读者思考，加深对文章主题的探讨。继而又使用and, if 等连接词引导问题持续展开，最后借助名著中一句引言做出总结，给出答案。整个行文逻辑紧密、逐层深入，自然流畅地点明了文章主题。
As well as being good at singing, he is also good at dancing. And if he takes part in the talent show, he will surely get the first prize.
Section Ⅳ
课文阅读理解
泛读课文，完成以下学习任务
(一)①after ②reasons ③ways ④benefits
(二)D
精读课文，完成以下学习任务
(一)1.D 2.C 3.B 4.D 5.C
(二)1.Because they want to turn the land into gardens to grow things.
2．It can help make cities greener and improve air quality.
3．I like gardening.When I spend my free time gardening, my heart is calm and I am relaxed.
课文写法借鉴
(一)①wait to see what will happen ②I know all the facts
③spend hours; perfect products
(二)①While I admit his good points
②nothing is more important than health ③on which to
(三)①我知道他爸爸擅长园艺。
②老年人应受到尊敬。
③没有苦就没有甜。
(四)他不但擅长唱歌，而且也擅长跳舞。如果他参加才艺表演，他一定会获得一等奖。
1 / 5(共59张PPT)
Section Ⅳ
“Developing ideas”的课文习读环节
目 录
课文阅读理解
课文写法借鉴
课时跟踪检测
课文阅读理解
泛读课文，完成以下学习任务
(一)理清文脉结构
after
reasons
ways
benefits
(二)把握主旨大意
What's the main idea of the text
A．History of gardening.
B．Skills of gardening.
C．Benefits of gardening.
D．Brits' love of gardening.
√
精读课文，完成以下学习任务
(一)阅读理解
1．What does “green fingers” mean in the first paragraph
A．The fingers painted with green color.
B．The poor skills of gardening.
C．The fingers cut by green knife.
D．The super skills of gardening.
√
2．What do we know about the love of gardening in Britain
A．Children like to see the tallest flowers.
B．Only experts can enter the competitions.
C．People enjoy working in their gardens.
D．People can find a place to plant flowers.
√
3．Why do people turn their rooftops into gardens
A．The flowers on the rooftops are more beautiful.
B．The space that can be used is limited.
C．Too many people are waiting for the place.
D．The flowers on the rooftops improve the air quality.
√
4．According to the passage, which of the following is NOT the significance of gardening
A．It enriches people's spiritual worlds.
B．It improves environment quality.
C．It provides people with a wonderful time.
D．It enables expert gardeners to enter competitions.
√
5．What do you think the last sentence in this article mean
A．A thistle cannot grow because of the roses.
B．A thistle is less important than the roses.
C．Gardening can make the environment more beautiful and the minds fulfilled.
D．Gardening can cost you a lot of time and money.
√
[Tip]
借助句间逻辑关系推测句意
句意猜测题一般考查学生用合适的语句解释一个具有概括性的句子或格言、谚语等，解题时重在把握上下文的句间逻辑关系及上下文的语意。如第5题考查的是对文章尾段最后一句中引言的理解，首先分析其上文，作者以反问的语气表达了自己的观点：园艺能让你在享受自然的同时创造美丽。本句引言在文中是用来进一步论证这一观点，故该引言与前一句之间为同义关系，由此可推知本题答案。
(二)阅读表达
1．Why do over 4,000 people wait for the small pieces of land
Because they want to turn the land into gardens to grow things.
2．Why does gardening do good to cities
It can help make cities greener and improve air quality.
3．Do you like gardening Why？(Answers may vary.)
I like gardening.When I spend my free time gardening, my heart is calm and I am relaxed.
|阅|读|技|能|提|升|
本文的语篇类型为事理说明文，此类文体多选用递进式结构，一层一层地剖析事理，把道理说深说透。各层之间的关系是由浅入深、由表及里、由现象到本质。如本文按以下顺序说明了英国人对园艺的喜爱：何时开始喜欢园艺的→喜欢园艺的原因→打理自己花园的方式→喜欢园艺的益处。
采用递进式结构的说明文的主旨大意多在尾段，有时行文也会采用首尾呼应的方式，此时可同时分析文章的开头和结尾来提炼主旨。如本文的开头和结尾均引用了《秘密花园》中的相关语句来烘托主题，这种首尾呼应的写作方法让文章结构更加紧密，主题更加突出。
课文写法借鉴
(一)赏用词之妙
1．Each spring, children plant sunflowers and wait to see which one is the tallest.
赏析：本句描写了春天孩子们参加园艺活动的情景，动词短语wait to see写出了孩子们等候向日葵快点长成的那种迫不及待的心理。
2．Expert gardeners know just the right corner for roses, and others spend hours trying to grow perfect vegetables to enter into competitions.
赏析：前半句中的know在此有“了如指掌”的意思，写出了高明的园丁对自己的园艺技能的自信。后半句中的spend hours及perfect写出了英国人对园艺活动高涨的热情和付出的努力。
提能训练|完成句子
①Let's put the chalk into the water and .
让我们把粉笔放进水中，等着看看会发生什么。
②I'd prefer to reserve judgement until .
在了解全部事实之前我不想发表意见。
③He would online until he chose .
他会在网上花几个小时直到挑选到完美的产品。
wait to see what will happen
I know all the facts
spend hours
perfect products
(二)赏句式之高
1．These words come from the author of the book The Secret Garden, first published in 1911.
赏析：本句中first published in 1911是过去分词短语作后置定语，进一步介绍了《秘密花园》这本书的有关情况，相当于定语从句which was first published in 1911，但是相比于从句，分词的用法令句式更凝练，表达更高效。
2．And while many Brits like nothing better than spending their Sunday cutting the grass, some are happy just to sit under the branches of the trees and enjoy the beauty of the world around them.
赏析：本句中使用了while引导让步状语从句，nothing better than属于“否定词＋比较级”表示最高级含义的用法，to sit under the branches of the trees and enjoy ...为动词不定式在句中做原因状语，各种高级句式的混用提升了表达的层次，写出了英国人对园艺的热爱以及不同的人拥有不同的享受园艺的方式。
3．Those without outside space can rent small pieces of land on which to grow things.
赏析：本句中without outside space是介词短语作定语， on which ...是“介词＋关系代词”引导的定语从句的省略结构。介词短语和省略结构的运用起到了化繁为简的作用，令表达更简洁高效。
①(完成句子) ,I can see his shortcomings.
尽管我承认他的优点，但我还是能看到他的缺点。
②(句式升级)From my point of view, health is the most important thing in our daily life.
→From my point of view， in our daily life.
提能训练
While I admit his good points
nothing is more important than health
③(句式升级)We need some solid facts on which we could base our decision.
→We need some solid facts base our decision.(升级为省略句)
on which to
(三)赏修辞之功
Today, millions of Brits like to say that they have “green fingers”， with around half the population spending their free time gardening.
赏析：本句中的“green fingers” 表示“绿手指(意为擅长园艺)”，使用了借代的修辞手法，表示对喜欢园艺的人的称赞。借代修辞手法可以达到“以简代繁，以实代虚，以奇代凡，以事代情”的效果，恰当地运用该修辞手法可以让表达特点鲜明、具体生动。
①I know that his father has green fingers.
我知道他爸爸擅长园艺。
②Gray hair should be respected.
老年人应受到尊敬。
③No cross, no crown.
没有苦就没有甜。
提能训练|英译汉
(四)赏逻辑之巧
As well as being good for the environment, gardening is also good for the soul.What other free-time activity allows you to be at one with nature and create more beautiful living things And if you're in any doubt about this, take a moment to reflect on this line from The Secret Garden：“Where you tend a rose ...A thistle cannot grow.”
赏析：文中第一句作者使用了as well as及also进一步描述了园艺的优点。而后采用设问的方式引发读者思考，加深对文章主题的探讨。继而又使用and, if 等连接词引导问题持续展开，最后借助名著中一句引言做出总结，给出答案。整个行文逻辑紧密、逐层深入，自然流畅地点明了文章主题。
As well as being good at singing, he is also good at dancing. And if he takes part in the talent show, he will surely get the first prize.
他不但擅长唱歌，而且也擅长跳舞。如果他参加才艺表演，他一定会获得一等奖。
提能训练|英译汉
课时跟踪检测
Ⅰ.阅读理解
A
You might have heard a lot about ancient towns and ancient cities in China. Here, we list several of the most beautiful ancient villages in China.
Baoshan Stone City, Yunnan Province
Baoshan Stone City was built on a huge mushroom-shaped rock, and only has about one hundred houses. The houses are laid out in an orderly way, built on the rock, and linked by stone steps. The Naxi people there still lead an original life and grow crops in terraces; you can experience the colorful culture of the Naxi ethnic group there.
Tuvas Village in Kanas, Xinjiang
Kanas Tuvas Village is near the mysterious Lake Kanas. The small village is located in a valley, and only has about 80 houses. These Swiss-style wooden houses are all surrounded by wooden fences. Tuvas is an ancient minority group. They traditionally lived as hunter-gathers. You can visit a local family, go herding (放牧) with the locals and experience the peaceful ancient village life.
Jiaju Tibetan Village, Danba, Sichuan Province
Jiaju Tibetan Village is known as the “Tibetan fairyland”. It stands on a mountain slope, and consists of about 140 houses. These unique houses are all built with crown-shaped roofs, red eaves, and white walls, which make the houses look like little castles among the forest.
Xijiang Miao Village, Guizhou Province
If you're interested in the Miao minority, Xijiang Miao Village can be a great destination for deepening your understanding of Miao history and culture. It's the largest Miao village in China, and now has 1,432 households with a population of over 5,000, of which 99.5% are Miao ethnic group. It's also famous for the houses built on stilts (支柱) of different heights.
语篇解读：本文是一篇说明文。文章主要介绍了中国几个最美丽的古村落。
1．What can you do in Kanas Tuvas Village
A．Hike in terraces.
B．See houses of a foreign style.
C．Go hunting with the locals.
D．Learn about houses built on stilts.
√
解析：细节理解题。由Tuvas Village in Kanas, Xinjiang中的“These Swiss-style ... fences.”可知，这些瑞士风格的木屋都被木栅栏环绕着。所以在Kanas Tuvas Village能够看到外国风格的房子。
2．Where can you admire the houses like castles
A．In Baoshan Stone City.
B．In Kanas Tuvas Village.
C．In Jiaju Tibetan Village.
D．In Xijiang Miao Village.
√
解析：细节理解题。由Jiaju Tibetan Village, Danba, Sichuan Province中的“These unique ... the forest.”可知，这些独特的房子都是用皇冠形的屋顶、红色的屋檐和白色的墙壁建造而成的，看起来像森林中的小城堡。所以在Jiaju Tibetan Village可以欣赏到像城堡一样的房子。
3．What can we infer about the villages mentioned in the text
A．They remained secret to the outside world in the past.
B．They were originally built to defend their homeland.
C．They are still cut off and difficult to access nowadays.
D．They are the ethnic villages with unique architecture.
√
解析：推理判断题。由Baoshan Stone City部分可知，在宝山石城可以体验纳西族丰富多彩的文化。由Tuvas Village in Kanas部分可知，图瓦斯是一个古老的少数民族。由Jiaju Tibetan Village可知，这里的房子看起来像森林中的小城堡。由Xijiang Miao Village中的“It's the largest Miao village ... group.”可知它是中国最大的苗族村寨，其中苗族占99.5%。综上所述可推知，它们是有着独特建筑的民族村落。
B
Some breathtaking blue lakes may not be so blue in the future, thanks to climate change.
In the first global record of lake color, researchers find that roughly one-third of Earth's lakes are blue. But, should average summer air temperatures rise by a few degrees, some of those clear waters could turn a cloudy green or brown, the team reports in the Sept. 28 Geophysical Research Letters.
The changing colors could change how people use those waters and offer information about the balance of lake ecosystems. Lake color depends in part on what's in the water, but factors such as water depth and surrounding land use also pared with blue lakes, green or brown lakes have more algae (水藻) and organic matter, says one of the researchers.
The scientists then look at local climates during that time to see how they may be linked to lake color around the world. Lakes in places with average summer air temperatures that was below 19 ℃ were more likely to be blue than lakes with warmer summers, the researchers find. “If average summer temperatures increase another 3 ℃ — an amount that scientists think is possible by the end of the century — those 3,800 lakes could turn green or brown. That's because warmer water helps algae produce more flowers, which changes the qualities of the water, giving it a green-brown color，” Yang says.
“If some lakes do become less blue, people will probably lose some of the resources they have come to value，” says O'Reilly, a scientist at Southern Methodist University in Dallss. But the color changes wouldn't necessarily mean that the lakes are any less healthy. “Humans don't value lots of algae in a lake, but if you're a certain type of fish species, you might like this great, ” O'Reilly says.
Lake color can hint at the balance of a lake's ecosystem and it gives sickness a basic hint for assessing how climate change is affecting Earth's freshwater resources. Continued increasing of lakes could help scientists discover future changes.
语篇解读：本文是一篇说明文。研究小组在地球物理研究通讯中报告说，如果夏季平均气温上升几度，那么一些纯净的水就会变成绿色或棕色，湖泊的颜色可以暗示湖泊生态系统的平衡。
4．Which factor connecting lake color isn't mentioned
A．Water depth.
B．People's use of water.
C．Surrounding land use.
D．Contents in the water.
√
解析：细节理解题。根据第三段的“Lake color depends in part on what's in the water, but factors such as water depth and surrounding land use also matter.”可知，水深、周围土地利用和水的成分与湖泊的颜色相联系，所以人们对水的利用没有提及。故选B项。
5．Why could lake color change if average summer temperatures rise by 3 ℃？
A．Because people will lose what they value.
B．Because the quantities of the water are changed.
C．Because algae grow more in warmer water.
D．Because 3 800 lakes could turn green or brown.
√
解析：细节理解题。根据文中第四段Yang说的话可知，如果夏季平均气温上升3 ℃，湖泊颜色会发生变化，是因为藻类在温暖的水中生长得更多。故选C项。
6．What is O'Reilly's attitude toward color change of the lakes
A．Doubtful. B．Positive.
C．Disapproving. D．Objective.
解析：推理判断题。根据第五段及最后一段可知，在奥莱利看来，湖泊的颜色的变化未必就是一种灾难，要视情况而言，所以对于湖水颜色的变化，奥莱利的态度是客观的。故选D项。
√
7．What is the main idea of the passage
A．Climate change could change lake color.
B．Lake color shows the heath conditions of lakes.
C．The change of lake color affects the lake ecosystem.
D．Color change in lakes does harm to the environment.
√
解析：主旨大意题。文章主要介绍了在第一个湖泊颜色的全球记录中，研究人员估计大约三分之一的地球湖泊是蓝色的，但是，研究小组在地球物理研究通讯中报告说，如果夏季平均气温上升几度，那么一些纯净的水就会变成绿色或棕色，湖泊的颜色可以暗示湖泊生态系统的平衡，它为评估气候变化如何影响地球淡水资源提供了基础，湖泊的持续增加可以帮助科学家发现未来的变化，所以气候变化可能会改变湖泊的颜色。故选A项。
Ⅱ.阅读七选五
Rivers play an important role on the earth, and we can't imagine what the earth would be like without rivers. 8
With a length of 6,670 kilometers, the Nile is the longest river in the world.The Nile River has been the source of human civilization since ancient times.The Nile has two main branches — the White Nile and the Blue Nile.The White Nile starts from the Great Lakes region of East and Central Africa through Lake Victoria. 9 The Blue Nile carries with it a lot of fertile soil which turns out to be very important to farming in Egypt.
The Amazon River is the world's largest river with a width of about 40 kilometers during the rainy seasons but about 10 kilometers wide when it is not flooded.The Amazon River has such a big water volume that it accounts for (占……比例) more than 20% of all the world's fresh water — far more than any other river. 10 The main Amazon River flows mostly through Brazil and Peru but its tributaries (支流) can also be found in many other countries.
11 It has a depth of about 250 meters.Its length is 4,700 kilometers.The sources of the Congo River are in the highlands and mountains in the Eastern Africa Rift Valley.It's the second largest river in terms of water volume. 12 The Congo River basin (盆地) is the catchments (流域) area of the Congo River.It lies in both north and south of the Equator, making its flow very stable as there are always some tributaries experiencing a rainy season at any time.
A．Some of them are worth mentioning.
B．The Congo River is the world's deepest river.
C．Do you know which is the deepest river in the world
D．The Blue Nile originates from (发源于) Lake Tana in Ethiopia.
E．Without rivers, there would be no living life in and along them.
F．And it flows through the second largest rainforests in the world.
G．Streams that begin in the Andes Mountains are its sources.
语篇解读：本文是一篇说明文。文章介绍了尼罗河、亚马孙河和刚果河三条世界上最长、最大和最深的河流。
8．选A 本空为段尾句。根据下文分别讲述最长、最大和最深的河流可知，本句引起下文，故A项“其中一些河流值得一提”符合语境。
9．选D 根据“The Nile has two main branches ...”可知，尼罗河有两大支流：白尼罗河和青尼罗河。上一句介绍了白尼罗河的发源地，因此该句应该介绍青尼罗河的发源地，故D项符合语境。
10．选G 本段介绍亚马孙河。根据下文“The main Amazon River ...”提到了亚马孙河的干流和支流可知，该空应该描述它的发源地，故G项符合语境。
11．选B 根据下文可知，本段介绍刚果河；又因后一句提到了它的深度可知，B选项“刚果河是世界上最深的河流”符合语境。
12．选F 根据上下文对刚果河所处的地理位置的描述可知，它流经东非大裂谷，位于赤道的南北两侧，故F项“它流经世界上第二大雨林”符合语境。UNIT 6 课时检测(四) “Developing ideas”的课文习读环节
Ⅰ.阅读理解
A
You might have heard a lot about ancient towns and ancient cities in China. Here, we list several of the most beautiful ancient villages in China.
Baoshan Stone City, Yunnan Province
Baoshan Stone City was built on a huge mushroom shaped rock, and only has about one hundred houses. The houses are laid out in an orderly way, built on the rock, and linked by stone steps. The Naxi people there still lead an original life and grow crops in terraces; you can experience the colorful culture of the Naxi ethnic group there.
Tuvas Village in Kanas, Xinjiang
Kanas Tuvas Village is near the mysterious Lake Kanas. The small village is located in a valley, and only has about 80 houses. These Swiss style wooden houses are all surrounded by wooden fences. Tuvas is an ancient minority group. They traditionally lived as hunter gathers. You can visit a local family, go herding (放牧) with the locals and experience the peaceful ancient village life.
Jiaju Tibetan Village, Danba, Sichuan Province
Jiaju Tibetan Village is known as the “Tibetan fairyland”. It stands on a mountain slope, and consists of about 140 houses. These unique houses are all built with crown shaped roofs, red eaves, and white walls, which make the houses look like little castles among the forest.
Xijiang Miao Village, Guizhou Province
If you're interested in the Miao minority, Xijiang Miao Village can be a great destination for deepening your understanding of Miao history and culture. It's the largest Miao village in China, and now has 1,432 households with a population of over 5,000, of which 99.5% are Miao ethnic group. It's also famous for the houses built on stilts (支柱) of different heights.
1．What can you do in Kanas Tuvas Village
A．Hike in terraces.
B．See houses of a foreign style.
C．Go hunting with the locals.
D．Learn about houses built on stilts.
2．Where can you admire the houses like castles
A．In Baoshan Stone City.
B．In Kanas Tuvas Village.
C．In Jiaju Tibetan Village.
D．In Xijiang Miao Village.
3．What can we infer about the villages mentioned in the text
A．They remained secret to the outside world in the past.
B．They were originally built to defend their homeland.
C．They are still cut off and difficult to access nowadays.
D．They are the ethnic villages with unique architecture.
B
Some breathtaking blue lakes may not be so blue in the future, thanks to climate change.
In the first global record of lake color, researchers find that roughly one third of Earth's lakes are blue. But, should average summer air temperatures rise by a few degrees, some of those clear waters could turn a cloudy green or brown, the team reports in the Sept. 28 Geophysical Research Letters.
The changing colors could change how people use those waters and offer information about the balance of lake ecosystems. Lake color depends in part on what's in the water, but factors such as water depth and surrounding land use also pared with blue lakes, green or brown lakes have more algae (水藻) and organic matter, says one of the researchers.
The scientists then look at local climates during that time to see how they may be linked to lake color around the world. Lakes in places with average summer air temperatures that was below 19 ℃ were more likely to be blue than lakes with warmer summers, the researchers find. “If average summer temperatures increase another 3 ℃ — an amount that scientists think is possible by the end of the century — those 3,800 lakes could turn green or brown. That's because warmer water helps algae produce more flowers, which changes the qualities of the water, giving it a green brown color，” Yang says.
“If some lakes do become less blue, people will probably lose some of the resources they have come to value，” says O'Reilly, a scientist at Southern Methodist University in Dallss. But the color changes wouldn't necessarily mean that the lakes are any less healthy. “Humans don't value lots of algae in a lake, but if you're a certain type of fish species, you might like this great, ” O'Reilly says.
Lake color can hint at the balance of a lake's ecosystem and it gives sickness a basic hint for assessing how climate change is affecting Earth's freshwater resources. Continued increasing of lakes could help scientists discover future changes.
4．Which factor connecting lake color isn't mentioned
A．Water depth.
B．People's use of water.
C．Surrounding land use.
D．Contents in the water.
5．Why could lake color change if average summer temperatures rise by 3 ℃？
A．Because people will lose what they value.
B．Because the quantities of the water are changed.
C．Because algae grow more in warmer water.
D．Because 3 800 lakes could turn green or brown.
6．What is O'Reilly's attitude toward color change of the lakes
A．Doubtful. B．Positive.
C．Disapproving. D．Objective.
7．What is the main idea of the passage
A．Climate change could change lake color.
B．Lake color shows the heath conditions of lakes.
C．The change of lake color affects the lake
ecosystem.
D．Color change in lakes does harm to the
environment.
Ⅱ.阅读七选五
Rivers play an important role on the earth, and we can't imagine what the earth would be like without rivers.__8__
With a length of 6,670 kilometers, the Nile is the longest river in the world.The Nile River has been the source of human civilization since ancient times.The Nile has two main branches — the White Nile and the Blue Nile.The White Nile starts from the Great Lakes region of East and Central Africa through Lake Victoria.__9__ The Blue Nile carries with it a lot of fertile soil which turns out to be very important to farming in Egypt.
The Amazon River is the world's largest river with a width of about 40 kilometers during the rainy seasons but about 10 kilometers wide when it is not flooded.The Amazon River has such a big water volume that it accounts for (占……比例) more than 20% of all the world's fresh water — far more than any other river.__10__The main Amazon River flows mostly through Brazil and Peru but its tributaries (支流) can also be found in many other countries.
__11__ It has a depth of about 250 meters.Its length is 4,700 kilometers.The sources of the Congo River are in the highlands and mountains in the Eastern Africa Rift Valley.It's the second largest river in terms of water volume.__12__ The Congo River basin (盆地) is the catchments (流域) area of the Congo River.It lies in both north and south of the Equator, making its flow very stable as there are always some tributaries experiencing a rainy season at any time.
A．Some of them are worth mentioning.
B．The Congo River is the world's deepest river.
C．Do you know which is the deepest river in the world
D．The Blue Nile originates from (发源于) Lake Tana in Ethiopia.
E．Without rivers, there would be no living life in and along them.
F．And it flows through the second largest rainforests in the world.
G．Streams that begin in the Andes Mountains are its sources.
UNIT 6 课时检测(四)
Ⅰ.阅读理解
语篇解读：本文是一篇说明文。文章主要介绍了中国几个最美丽的古村落。
1．选B 细节理解题。由Tuvas Village in Kanas, Xinjiang中的“These Swiss style ... fences.”可知，这些瑞士风格的木屋都被木栅栏环绕着。所以在Kanas Tuvas Village能够看到外国风格的房子。
2．选C 细节理解题。由Jiaju Tibetan Village, Danba, Sichuan Province中的“These unique ... the forest.”可知，这些独特的房子都是用皇冠形的屋顶、红色的屋檐和白色的墙壁建造而成的，看起来像森林中的小城堡。所以在Jiaju Tibetan Village可以欣赏到像城堡一样的房子。
3．选D 推理判断题。由Baoshan Stone City部分可知，在宝山石城可以体验纳西族丰富多彩的文化。由Tuvas Village in Kanas部分可知，图瓦斯是一个古老的少数民族。由Jiaju Tibetan Village可知，这里的房子看起来像森林中的小城堡。由Xijiang Miao Village中的“It's the largest Miao village ... group.”可知它是中国最大的苗族村寨，其中苗族占99.5%。综上所述可推知，它们是有着独特建筑的民族村落。
语篇解读：本文是一篇说明文。研究小组在地球物理研究通讯中报告说，如果夏季平均气温上升几度，那么一些纯净的水就会变成绿色或棕色，湖泊的颜色可以暗示湖泊生态系统的平衡。
4．选B 细节理解题。根据第三段的“Lake color depends in part on what's in the water, but factors such as water depth and surrounding land use also matter.”可知，水深、周围土地利用和水的成分与湖泊的颜色相联系，所以人们对水的利用没有提及。故选B项。
5．选C 细节理解题。根据文中第四段Yang说的话可知，如果夏季平均气温上升3 ℃，湖泊颜色会发生变化，是因为藻类在温暖的水中生长得更多。故选C项。
6．选D 推理判断题。根据第五段及最后一段可知，在奥莱利看来，湖泊的颜色的变化未必就是一种灾难，要视情况而言，所以对于湖水颜色的变化，奥莱利的态度是客观的。故选D项。
7．选A 主旨大意题。文章主要介绍了在第一个湖泊颜色的全球记录中，研究人员估计大约三分之一的地球湖泊是蓝色的，但是，研究小组在地球物理研究通讯中报告说，如果夏季平均气温上升几度，那么一些纯净的水就会变成绿色或棕色，湖泊的颜色可以暗示湖泊生态系统的平衡，它为评估气候变化如何影响地球淡水资源提供了基础，湖泊的持续增加可以帮助科学家发现未来的变化，所以气候变化可能会改变湖泊的颜色。故选A项。
Ⅱ.阅读七选五
语篇解读：本文是一篇说明文。文章介绍了尼罗河、亚马孙河和刚果河三条世界上最长、最大和最深的河流。
8．选A 本空为段尾句。根据下文分别讲述最长、最大和最深的河流可知，本句引起下文，故A项“其中一些河流值得一提”符合语境。
9．选D 根据“The Nile has two main branches ...”可知，尼罗河有两大支流：白尼罗河和青尼罗河。上一句介绍了白尼罗河的发源地，因此该句应该介绍青尼罗河的发源地，故D项符合语境。
10．选G 本段介绍亚马孙河。根据下文“The main Amazon River ...”提到了亚马孙河的干流和支流可知，该空应该描述它的发源地，故G项符合语境。
11．选B 根据下文可知，本段介绍刚果河；又因后一句提到了它的深度可知，B选项“刚果河是世界上最深的河流”符合语境。
12．选F 根据上下文对刚果河所处的地理位置的描述可知，它流经东非大裂谷，位于赤道的南北两侧，故F项“它流经世界上第二大雨林”符合语境。
1 / 4
