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Unit 4　
The Wonders of Nature
Section A (1a~2d)
To learn the words and expressions about some famous natural wonders:waterfall, desert, trench, wonder, desert, measurement, square kilometre, below, sea level, surface ...
To get the geography facts about the natural wonders through listening.
To talk about these places using the superlatives and large numbers.
To talk about what you have learned about the deep sea and arouse interest in deep-sea exploration.
01
02
03
学习目标
04
单元目标
In this unit, you will：
1. talk about geography facts about natural wonders. 谈论关于自然奇观的地理知识。
2. compare facts about famous places.
对比著名景点的相关信息。
3. share geography facts using large numbers.
分享带有大数字的地理知识。
4. explore how and why people connect with nature.探讨人类与自然如何建立联系，以及为何会产生这种联系。
Look and share
1.Do you know the name of the waterfall in the photo
The waterfall in the photo is Victoria Falls.
It’s special for its immense width (about 1,708 meters) and height (about 108 meters), creating a breathtaking scene.
2.What do you think is special about it
3.What other natural wonders do you know
How do we connect with nature
我们如何与自然联系？
Big Question
Presentation
Let’s enjoy the seven natural wonders of the world.
Let’s get to know
some amazing places around the world.
Lead in
Match the places with the pictures.
____ Nile River ____ Angel Falls ____ Mount Qomolangma
____ Dead Sea ____ Sahara Desert ____ Mariana Trench
E
F
A
D
C
B
Pre-listening
1a
Nile River 尼罗河
/na l/
Let’s learn!
尼罗河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。全长6650千米，是世界上最长的河流，流域面积334.9万平方千米。 占据非洲大陆总面积超过1/9。河口区域年均流经的水量大约为810亿立方米。
Mariana Trench 马里亚纳海沟
/ m ri n / /trent /
马里亚纳海沟全长2550千米，为弧形，平均宽70千米。据估计这条海沟已形成6000万年。其最深处的地方达6~11千米，是已知的海洋最深处。2020年11月10日8时12分，中国“奋斗者”号载人潜水器在马里亚纳海沟成功坐底，坐底深度10909米。
Dead Sea
死海是世界上最低的湖泊，也是地球上盐分居第三位的水体。截至2019年，死海表面积为605平方千米。 死海的湖岸是地球上已露出陆地的最低点，湖面海拔-430.5米。湖最深处380.29米，最深处湖床海拔-800.112米，有“世界的肚脐”之称。
Mount Qomolangma
珠穆朗玛峰
/ t m lɑ m /
珠穆朗玛峰简称珠峰，岩面高程8844.43米， 雪面高程8848.86米， 是喜马拉雅山脉中的主峰。由于亚欧板块和印度板块边缘的冲撞挤压，使喜马拉雅山地区猛烈抬升，据测算，平均每一万年大约升高20—30米，直至如今，喜马拉雅山区仍处在不断上升之中，每100年上升7厘米。
Sahara Desert
/s h r /
撒哈拉沙漠位于非洲大陆北部，是世界上最大的沙漠。它西起大西洋沿岸，向东经过埃及到达红海之滨，长5600千米，南北宽2000千米，总面积约932万平方千米，横跨北非诸多国家。其平均海拔300余米，主要由一条条平行排列的沙垄沙漠所组成。
Angel Falls
安赫尔瀑布位于委内瑞拉玻利瓦尔州圭亚那高原的卡罗尼河支流丘伦河上，是世界落差最大瀑布 。丘伦河水从平顶高原奥扬特普伊山直流而下而形成瀑布，分为两级，总落差979米，以离丘伦河谷地172米的分结晶岩平台为界，其上为长的一级，高达807米。
/ e n.d l f lz/
While-listening
1b
Listen to the game plete the descriptions of the places.
Place Description
Mount Qomolangma the in the world
Sahara Desert the in the world
Dead Sea the on earth
Mariana Trench the in the ocean
highest mountain
biggest desert
lowest place
deepest point
Tip:
听主旨大意，重点关注描述性最高级词汇
在地球上
How do we read the numbers
8,848.86
thousand
point
eight six
and
8,848.86: eight thousand, eight hundred and forty-eight point eight six
416
11,000
9,000,000
million
four hundred and sixteen
eleven thousand
nine million
三位数：百位数字 + hundred + and +
十位和个位(十位若是0，直接读个位)
416 8,848.86 11,000 9,000,000
Look and read
Listen again. Complete the measurements in 1b with the numbers below.
416 8,848.86 11,000 9,000,000
Place Measurement
Mount Qomolangma ________metres high
Sahara Desert about _________square kilometres in size
Dead Sea ________metres below sea level
Mariana Trench about________metres deep
/'me m nt/ n.数量；测量
8,848.86
9,000,000
416
11,000
Tip:
精听，边听边记录关键数据，用逗号三位一隔
1c
Host: Welcome to our game show! Today, it's all about geography. Answer as quickly as you can! Question one: What is the highest mountain in the world
Fu Xing: It's Mount Qomolangma!
Host: Correct! How high is it
Liu Hongyu: I know this—it's 8,848.43 metres high.
Host: No, sorry. Fu Xing
Fu Xing: Is it 8,848.86 metres
Host: Yes! But some scientists say Qomolangma is still growing taller! Now, name the biggest desert in the world.
Fu Xing: The Taklimakan Desert
Host: Wrong! Ella
Ella: It's the Sahara Desert.
Host: Right! Now, how big is it
Ella: It's about 9,000,000 square kilometres.
Host: That's right! What's the lowest place on earth
Liu Hongyu: It's the Dead Sea!
Host: Well done! Its surface is 416 metres below sea level. Now where's the deepest point in the ocean
Fu Xing: It's in the Mariana Trench.
Host: That's correct! How deep is it
Fu Xing: It's about 11,000 metres deep.
Host: Correct!
“the + 形容词 / 副词最高级”后面可用带有 of 、in、on 的短语等来说明比较的范围，意为“……在……中最……”。
Presentation
长、宽、高、深、面积的表达方法
The river is 20 meters wide. = The river is 20 meters in width.
基数词 + 单位词 + 形容词（long, wide, high, deep等）
基数词 + 单位词 + in + 名词（length, width, height, depth, size等）
【拓展延伸】作定语时用合成词“数词 - 单位词单数 – 形容词”。
This 20-meter-long rope isn’t long enough to help climb the mountain.
Summary
Post-listening
Retell the places by the table.
You may begin like this:There are many amazing natural places on our planet.Mount Qomolangma is.....
Place Description Measurement
Mount Qomolangma the... in the world 8,848.86 ....
Sahara Desert the ... in the world about 9,000,000 ....
Dead Sea the .... on earth 416 metres ....
Mariana Trench the .... in the ocean about 11,000 metres...
1d
Talk about the places you have learnt about.
Useful expressions:
主语+谓语(+the)+最高级+ in/of/among短语.
A: What’s the lowest place on earth
B: It’s ...
A: How low is it
B: Its surface is ... metres below sea level.
A: Now, what’s ...
n. 表面；表层
What’s the lowest place on earth
It’s the Dead Sea.
How low is it
Its surface is 416 metres below sea level.
Now, what’s the highest mountain in the world
It’s Mount Qomolangma.
How high is it
It’s 8,848.86 metres high.
Role-play
What do you know about the deep sea
Pre-listening
Complete the sentences with the information from the picture.
1. Fendouzhe
reached ____.
2. The deep sea
begins at ____.
3. The Titanic
rests at ____.
4. A whale can
dive to ____.
B
D
C
A
通常认为，深度超过 2,00 米 的海域属于深海区域。在这一深度以下，光照几乎消失，水压极大，环境与浅海截然不同，孕育着许多适应极端环境的特殊生物，也有着独特的地质结构。
有些鲸鱼，例如柯氏喙鲸，能够下潜到深海区域，其最深下潜记录可达约 2,992 米 。鲸鱼的这种深潜能力是为了觅食等生存需求，它们在深海的活动也反映了深海生态系统中生物的多样性和适应性。
著名的泰坦尼克号邮轮在 1912 年沉没于北大西洋，其残骸位于约 3,800 米 的深海处。这一深度的海底环境使得泰坦尼克号的残骸保存状况具有独特的研究价值，也让人们对其沉没的历史事件有了更多的探索线索。
“奋斗者” 号是中国自主研发的全海深载人潜水器，它成功下潜至马里亚纳海沟 10,909 米 处，这一深度彰显了中国在深海探测领域的先进技术，也为人类探索深海奥秘、开展深海科学研究提供了重要支撑。
2a
A class is asking a deep-sea researcher some questions after his talk. Read the questions first.
where the deep sea begins
why people are researching the deep sea
which Chinese submersible dived deeper in the water than many others
what deep-sea animals are like
how everyone should protect the deep sea
Listen and tick the topics they discuss.
v. & n. 研究；调查
n. 潜水艇
Tip: 首先，阅读题目，抓住关键词(特殊疑问词 、动词等)。然后，听中听到话题关键词或同义词时，确定答案。
2b
Listen again. Complete the sentences with the facts from the conversation.
1. People still don’t know much about the ___________________.
2. In _______, China’s Fendouzhe dived into the deep sea and filmed it.
3. Some animals have unusual abilities. Some are _________ but can “_________”. Some can even create their own __________.
4. There is rubbish even at _________ metres deep.
deep sea/ocean floor
2020
blind
11,000
see
light
Tip: 听前分析空缺内容(名词、年份、动词、形容词、数字等)。听中抓取细节信息，先记录关键词，听完后再补全完整单词。
2c
Ms Gao: Thank you for the wonderful talk, Mr Jones. Now, does anyone have any questions
Emma: I do! Why are so many countries ______________________
Mr Jones: Well, ________ is one reason. We don't know enough about the ocean floor.
Fu Xing: I remember that in 2020, China's Fendouzhe _______________ the MarianaTrench than many other submersibles in the world and filmed it. But I didn't see any deep-sea animals. What are they like
Listen again and fill in the blanks.
researching the deep sea
curiosity
dived deeper into
感谢琼斯先生的精彩演讲。
为什么如此多的国家都在研究深海？
海底
中国的奋斗者号在马里亚纳海沟下潜得比世界上许多潜水器都神，还拍摄了影像
“形容词 / 副词比较级 + than”表示两者（人或事物）的比较。
Mr Jones: Well, many deep-sea animals are ____________________. Some animals are blind, but they can "see" as well as others. Some even __________________!
Peter: Cool! Are there any other surprising facts about the deep sea
Mr Jones: Did you know that there's rubbish even at 11,000 metres deep That ________ many people.
Ms Gao: That's terrible! We should do something about it.
Mr Jones: You're right!
large and unusual
create their own light
shocked
有些动物没有视力，却能和其他动物一样“感知”周围。
自己发光
感到震惊
“as + 形容词或副词原形 + as”为同级比较，表示两者在某一方面相同。
any other + 名词复数，表示“还有其他……吗？”
as well as 表示“和……一样好”
Read the questions and think of more you would like to ask the deep-sea researcher.
● What is the largest shark in the deep sea
● What is the bottom of the deep sea like
● Why is it important to research the deep sea
● What other vessels dived to the bottom of the ocean
● What do deep-sea animals usually eat to survive
● How cold is the water in the deep sea
● What tools do researchers use to study the deep sea
● ...
2d
Research the answers.
● What is the largest shark in the deep sea
● What is the bottom of the deep sea like
● Why is it important to research the deep sea
● What other vessels dived to the bottom of the ocean
● What do deep-sea animals usually eat to survive
● How cold is the water in the deep sea
● What tools do researchers use to study the deep sea
The largest shark in the deep sea is the Greenland shark (格陵兰鲨).
It is usually dark, cold, and covered with soft sedimen (沉积物).
Other vessels include Trieste (迪里雅斯特号) and Alvin (阿尔文号).
It helps us learn about ocean life and get useful things for our lives.
They usually eat other small animals or organic debris (有机碎屑).
It is very cold, usually around 0-4 ℃.
Researchers use vessels like Fendouzhe and cameras to study the deep sea.
当堂检测
1. How do you read the number “8,848.86” in English
A. Eight thousand eight hundred and forty-eight point eight six.
B. Eight thousands eight hundred forty-eight point eighty-six.
C. Eight thousand and eight hundred forty-eight point eight six.
2. The Dead Sea is about 430 meters _______ sea level.
A. under B. below C. down
3. — _______ is the Nile River
— It’s about 6,650 kilometers long.
A. How much B. How deep C. how long
4. The Yangtze River is one of _______ rivers in Asia.
A. long B. longer C. longest D. the longest
A
B
C
D
单项选择
抄写本课生词和短语 3 遍，每个单词造 2 个句子。
上网查询更多关于自然奇观的介绍，下节课分享。
Homework

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