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(共25张PPT)
Section A (3a~3d)
The Wonders of Nature
Unit 4
Learning aims
能谈论中国其他地理之最
通过听读活动，了解中外河流之最
Lead in
Watch and answer.
1 What is the name of the river mentioned in the video
It’s the Yellow River.
2 Is it the longest river in China
No, the longest river is the Yangtze River.
3 Do you know anything else about the Yellow River or the Yangtze River
Activity 1
Know something about the world rivers
Read the conversation and underline the three rivers mentioned.
Yaming: Welcome back, Ella! How was your trip
Ella: It was great! We saw the Hukou Waterfall on the Yellow River. Is that the longest river in China
Yaming: No, the Yangtze River is the longest river in China. It travels the farthest and is about 6,300 kilometres long. The Yellow River is 5,464 kilometres long and is the second longest. By the way, do you know why it’s called the Yellow River
Ella: Because it’s yellow
Yaming: Right. Some parts of the river carry brown and yellow earth.
Ella: That’s interesting! I like learning about rivers. My favourite is the Nile. Did you know it’s the longest river in the world
Yaming: Yes, it’s 6,671 kilometres long. It’s very important in Egypt’s history.
Ella: That’s right. Both the Nile and the Yellow River helped ancient civilizations to develop. And they’re still very important today.
Yaming:Yes. In China, we even call the Yellow River our “mother river” !
Ella: We should protect them at all costs.
3b
What do Yaming and Ella know about these rivers Read the conversation again and complete the table.
River Country Length Importance
Yellow River __________ __________ km helped in the development of ancient _____________
Nile River __________ __________ km Yangtze River __________ __________ km the _________ river in China
China
5,464
Egypt
6,671
civilizations
China
6,300
longest
What else do you know about the three rivers
Think & share
发源于青海省西南部、青藏高原上的唐古拉山脉主峰各拉丹冬雪山，曲折东流，干流先后流经11个省、自治区和直辖市，最后注入东海。
地理位置
是中国、亚洲第一大河，全球第三长河流。素有中国“黄金水道”之称，通航里程达2800多千米。
重要性
Yangtze River
发源于青藏高原巴颜喀拉山北麓的约古宗列盆地，自西向东流经9个省（自治区），最后在东营市垦利区流入渤海。
地理位置
黄河是中华文明最主要的发源地，中国人称其为中华民族的“母亲河”。每年都会携带十六亿吨泥沙，其中有十二亿吨流入大海，剩下四亿吨长年留在黄河下游，形成冲积平原，有利于种植。
重要性
Yellow River
是一条流经非洲东部与北部的河流，与中非地区的刚果河以及西非地区的尼日尔河并列非洲最大的三个河流系统。有两条主要的支流，白尼罗河和青尼罗河。于喀土穆交汇，为尼罗河的干流。穿越11国，最终汇入地中海。
地理位置
是世界文明发祥地之一，这一地区的人民创造了灿烂的文化，在科学发展的历史长河中做出了杰出的贡献。
重要性
Nile River
Who saw the Hukou Waterfall on the trip
Why is the water yellow in the Yellow River
What’s the longest river in China
What’s Ella’s favourite river
Ella.
Some parts of the river carry brown and yellow earth.
The Yangtze River.
The Nile.
Read the conversation again and answer the questions.
Language points
1 Welcome back, Ella! How was your trip
—How was your weekend
你周末过得怎么样？
—It was not bad. 不错。
— How was/were...
— It was good/ great/ fantastic./ Great!/ ...
— It was not bad./Terrible./...
……怎么样？用来询问过去的情况
好的情况
一般或不好的情况
…
…
2 No, the Yangtze River is the longest river in China.
主语
谓语动词
最高级
名词
主语+谓语动词（+the）+最高级（+名词）+in/of...
……在某一范围内或某类人或物中（是）最……（的……）
这是最高级的常用结构之一，副词最高级前的the可以省略。
This is the most interesting story of all.
这个是所有故事中最有趣的。
Eric works (the) hardest in Class 1.
在一班埃里克学习最努力。
3 The Yellow River is 5,464 kilometres long and is the second longest.
主语
be动词
序数词
形容词最高级
主语+be动词+the+序数词+形容词最高级（+名词+in/of...）
……是（某一范围内或某类人或物中）第……（的……）
Sam is the second tallest boy in his class. 萨姆是他班里第二高的男生。
4 Both the Nile and the Yellow River helped ancient civilizations to develop.
both... and... ……和……都；既……又……
通常连接两个并列的成分。连接两个并列主语时，谓语动词用复数形式。
Both my brother and I are interested in deep-sea animals.
我和哥哥都对深海动物感兴趣。
5 helped in the development of ancient _________
由“develop（v. 增强；发展）+-ment（名词后缀）”构成
in the development of... 在……的发展过程中
搭配
Computers play an important role in the development of modern science. 计算机在现代科学发展中起重要作用。
development 的相关词：
拓展
develop v.
增强；发展
developed adj. 发达的
developing adj. 发展中的
development n. 发展；壮大
3c
Listen to the conversation. Then role-play it.
Activity 2
Talk about top geographical features in China
Imagine that you are Yaming or Ella. Continue the conversation with a partner about other geographical features in China.
3d
Ella: Could you tell me more about China,Yaming
Yaming: Sure! What would you like to know
Ella: What's the biggest desert in China
Yaming: It's the Taklimakan Desert.
Ella: Do you know ...
It’s in Xinjiang, China.
It is the largest desert in China.
It’s about 337,600 square kilometers.
It is very dry there, with little rain. But around its edges, there are small oases (green places with water) where people live and grow crops.
Taklimakan Desert
Ella: Could you tell me more about China,Yaming
Yaming: Sure! What would you like to know
Ella: What's the biggest desert in China
Yaming: It's the Taklimakan Desert.
Ella: Do you know where it is and how big it is
Yaming: It’s in Xinjiang, in the northwest of China. It covers about
337,600 square kilometers.
Ella: That's huge! Is it possible for people to live there
Yaming: It is very dry with little rainfall. But around its edges,
there are small oases where people can live and grow crops.
Ella: That's fascinating. I hope I can visit it one day.
Sample
Summary
◆重点词汇
◆河流对比
Yangtze River, Egypt, Taklimakan Desert, by the way, both … and…
River Country Length Importance
Yellow River __________ __________ km helped in the development of ancient _____________
Nile River __________ __________ km Yangtze River __________ __________ km the _________ river in China
China
5,464
Egypt
6,671
civilizations
China
6,300
longest
Exercise
Zhou Yang: In China, the Hukou (1)　　　　　　 (瀑布) is a famous natural wonder that attracts lots of visitors.
Zhang Yu: The ancient Egyptian (2)　　　　　　 (文明) developed along the banks of the Nile River.
Su Yao: The Yellow River plays an important role in the (3)　　　　　　 (发展) of China.
Lin Yue: The Taklimakan Desert is the biggest (4)　　　　　　 (沙漠) in China.
Huang Ling: In Egypt, the traditional means of transportation on the Nile River is the felucca, a kind of wooden boat.
补全对话
Waterfall
civilization
development
desert
Homework
1. Memorize the new words and phrases.
2. Write about the top geographical features in China.
3. Finish the exercises.

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