资源简介

(共39张PPT)
Unit Four The Wonders of Nature
Sec A 1a-1d
How do we connect with nature
In this unit, you will:
1. talk about geography facts about
natural wonders.
2. compare facts about famous places.
3. share geography facts using large numbers.
4. explore how and why people connect
with nature.
How do we connect with nature

BIG
Question
Open page
What can you see in the photo？
Do you know the name of this waterfall
What do you think is special about it
Victoria Falls
(维多利亚瀑布)
Look and share
Iceland Glacier Caves
Huangguoshu Waterfall
Gansu Danxia Landform
Huanglong Travertine Pools
What other natural wonders do you know
捞一捞
Look and say
在委内瑞拉，是世界最高瀑布，落差 979 米，藏身热带雨林，水流从高山直坠而下，景色壮观。
Angel Falls
捞一捞
Look and say
死海位于西亚，是世界陆地最低点（-416 米），湖水盐度极高，无生物生存，人可漂浮于湖面。
Dead Sea
捞一捞
Look and say
尼罗河在非洲，是世界最长河流，长约 6670 千米，滋养沿岸土地，被称为非洲 “母亲河”。
Nile River
捞一捞
Look and say
位于中尼边境，是世界最高峰，海拔 8848.86 米，山体巍峨，被称为 “世界第三极”。
Mount Qomolangma
捞一捞
Look and say
位于非洲北部，是世界最大沙漠，面积约 900 万平方公里，气候干旱，以广袤沙丘为特色
Sahara Desert
捞一捞
Look and say
位于西太平洋，是世界最深海沟，最深处约 11000 米，海底环境极端，藏有独特海洋生物。
Mariana Trench
What is the name of this natural wonder
It’s the Nile River.
How long is it
It’s 6,671 kilometres long.
What is special about it
It’s the longest river in the world. It helped ancient Egyptian civilization develop.
Think and answer
What is the name of this natural wonder
It’s Angel Falls.
How high is it
It’s about 979 metres high.
What is special about it
It’s the highest waterfall in the world.
What is the name of this natural wonder
It’s the Sahara Desert.
How large is it in size
It’s about 9,000,000 square kilometres in size.
What is special about it
It’s the largest desert in the world. It has a very vast area.
What is the name of this natural wonder
It’s the Mariana Trench.
How deep is it
It’s about 11,000 metres deep.
What is special about it
It’s the deepest place in the world’s ocean.
What is the name of this natural wonder
It’s the Dead Sea.
How low is its surface below sea level
Its surface is 416 metres below sea level.
What is special about it
It’s the lowest place on earth. Its water is very salty.
What is the name of this natural wonder
It’s Mount Qomolangma.
How high is it
It’s 8,848.86 metres high.
What is special about it
It’s the highest mountain in the world. It’s still growing taller.
Look and match
Angel Falls
Dead Sea
Nile River
Mount
Qomolangma
Sahara Desert
Mariana Trench
A
C
F
D
E
B
Vocabulary tips
metre (m)
/ mi t (r)/ 米 (长度单位)
Example: It’s 100 metres high.
它有100米高。
square kilometre (sq. km)
/skwe (r) k l mi t (r)/ 平方千米 (面积单位)
Example: The park is 5 square kilometres in size.
这个公园面积为5平方千米。
Pre-listening
Diagram: Sea Level Comparison
Phrases
below sea level
/b l si levl/
低于海平面
above sea level
/ b v si levl/
高于海平面
Example: The Dead Sea is below sea level.
长、宽、高、深、面积的表达方法:
基数词 + 单位词 + 形容词（long, wide, high, deep等）
100 metres high
100 metres deep
While-listening
What information do we need to fill in
highest
biggest
lowest
deepest
8,848.86
9,000,000
416
11,000
Listen carefully to the adjectives.
Tip:Notice the use of superlative adjectives to describe unique features.
highest
biggest
lowest
deepest
8,848.86
9,000,000
416
11,000
Listen carefully to the numbers.
Try to read the following numbers.
416 8,848.86 11,000 9,000,000
416 →
8,848.86 →
11,000 →
9,000,000 →
four hundred and sixteen
eight thousand, eight hundred and
forty-eight point eight six
eleven thousand
nine million
Tip:Pay attention to the stress on the bold words when reading numbers.
Host: __________our game show! Today, it's all about geography.
Answer as quickly as you can!
Question one: What is the________________in the world
Fu Xing: It's Mount Qomolangma!
Host: Correct! ________________
Lin 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_____________ !
Now, name the________________ in the world.
Fu Xing: The Taklimakan Desert
Welcome to
highest mountain
growing taller
How high is it
biggest desert
TASK 1 Listen and fill in the blanks.
Host: ___________! Ella
Ella: It's the Sahara Desert.
Host: Right! Now, ________________
Ella: It's about 9,000,000 square kilometres.
Host: That's right! What's the _______________ on earth
Lin Hongyu: It's the Dead Sea!
Host: Well done! Its surface is 416 metres ______ sea level.
Now where's the ______________ in the ocean
Fu Xing: It's in the Mariana Trench.
Host: That's correct! How _______ is it
Fu Xing: It's about 11,000 metres deep.
Host: Correct!
Wrong
how big is it
lowest place
below
deepest point
deep
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
尽快
世界上最高的山
询问高度
……米高(表达高度)
说出世界上最大的沙漠(name动词)
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!
平方公里(面积单位)
地球上最低的地方
它的表面在海平面以下416米(描述海拔)
海洋中最深的点
询问深度
……米深(表达深度)
The village is below the mountain.（村庄和山不在同一垂直线上）
I usually put the basketball under the chair.（篮球和椅子在同一垂直线上）
辨析：below与under 两者都表示"在……下方"，但具体含义不同。 below 不强调垂直关系，只要位置低于某物即可，与above相对
under 强调垂直下方的位置关系，与over相对
There are many amazing natural wonders in the world. Mount Qomolangma is the _______________ in the world. It’s __________ metres high. The Sahara Desert is the ____________ in the world. It’s about ____________ square kilometres in size. The Dead Sea is the ____________ on earth. Its surface is __________ metres below sea level. The Mariana Trench is the ____________ in the ocean. It’s about ________ metres deep.
highest mountain
8,848.86
biggest desert
9,000,000
lowest place
416
deepest point
11,000
TASK 2 Introduction
TASK 3 Group work
A: What’s the ... in the world
B: It’s ...
A: How ... is it
B: Its surface is ... metres below sea level.
A:Now,what’s ...
Word Bank
Superlatives：highest, biggest, lowest, deepest
Nouns：mountain, desert, place, point
Wonders：Mount Qomolangma, the Sahara Desert, the Dead Sea, the Mariana Trench
Data：8848.86 metres, 9,000,000 sq km, 416 metres, 11,000 metres
Adjectives：high, big, low, deep
B: ...
Language Points
How can we read large numbers
5
401
211
587
. 69
5
401
211
587
,
,
,
第一个逗号代表thousand(千),
第二个逗号代表 million(百万),
第三个逗号代表billion(十亿).
thousand
千
million
百万
billion
十亿
five billion,
four hundred and one million,
two hundred and eleven thousand,
five hundred and eighty-seven,
. 69
point+小数
点后逐个读
point
点
point six nine
5
401
211
587
. 69
比较级和最高级的构成
long
longer
longest
1. 一般在词尾加-er，-est。
2. 以不发音的e结尾加-r，-st。
3. 以重读闭音节结尾，
双写尾字母，再加-er，-est。
4. 以辅音字母加y结尾的，
变y为i再加-er，-est。
5. 多音节和部分双音节词，
词前加 more， most。
nice
nicer
nicest
big
bigger
biggest
heavy
heavier
heaviest
famous
more famous
most famous
river
scenery
lake
snow
mountain
原级 比较级 最高级
good / well
many / much
bad / badly
little (少)
old
far
better
best
more
most
worse
worst
less
least
older/elder
oldest/eldest
farther/further
farthest/furthest
不规则变化
Read and write
2,674 → ________________________________________________
164,213,430 → ___________________________________________
___________________________________________
18,357,089 → ____________________________________________
____________________________________________
twenty-eight thousand, six hundred and fifty-six ______________
forty million, four hundred and twenty-four thousand __________
two thousand, six hundred and seventy-four
one hundred and sixty-four million, two hundred and thirteen thousand, four hundred and thirty
eighteen million, three hundred and fifty-seven thousand, and eighty-nine
28,656
40,424,000
Practice
1. big
2. high
3. low
4. deep
5. easy
6. far
7. happy
8. loud
9. great
10. close
11. amazing
__________ _________
__________ _________
__________ _________
__________ _________
__________ _________
__________ _________
__________ _________
__________ _________
__________ _________
__________ _________
__________ _________
写出下列单词的比较级和最高级
bigger
biggest
higher
highest
lower
lowest
deeper
deepest
easier
easiest
farther
farthest
happier
happiest
louder
loudest
greater
greatest
closer
closest
more amazing
most amazing
用所给词的适当形式填空
1.The Yellow River is _________ (long) than the Huaihe River.
2.Mount Tai is the _________ (high) of the two mountains in Shandong.
3.The sea is getting more and more _________ (beautiful) with protection.
4.This lake is the _________ (deep) in our province.
5.Which is _________ (long), the Amazon River or the Nile River
6.This river is three metres __________ (wide) than that one.
7.Hainan Island is the second __________(large) island in China.
8.The sunset over the ocean is one of the _______________ (amazing)
scenery in the world.
longer
higher
beautiful
deepest
longer
wider
largest
most amazing
Homework
Summarize the key points of the lesson: natural wonders’
descriptions and measurements, and related expressions.
Prepare a short introduction about one natural wonder, including its description.
Must-do
Choose-to-do

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