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(共16张PPT)
Section A (1a-2d)
The Wonders of Nature
Unit 4
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.
地理事实
自然奇观 / w nd (r)/
亲近自然
Look and share
1. Do you know the name of the waterfall in the photo Where is it
It's Victoria Falls in southern Africa.
2. What do you think is special about it (video)
waterfall
It’s amazing and shocking! Visitors can feel the great power of nature and see bright rainbows all around.
It is very wide and tall. (about 1.7 kilometers wide and 108 meters tall).
It’s one of the most famous waterfalls in the world.
Look and share
What natural wonders can you see in the pictures
river
河流
waterfall
瀑布
mountain
高山
desert
沙漠
trench
海沟
sea
海洋
1a
Match the places with the pictures.
____Nile River
____Dead Sea
____Angel Falls
____Sahara Desert
____Mount Qomolangma
____Mariana Trench
A
B
C
D
E
F
F
A
D
C
E
B
/ na l/
/ e nd l/
/ t m lɑ m /
/s hɑ r /
/ dez t/
/ m ri n /
/ trent /
尼罗河
安赫尔瀑布
珠穆朗玛峰
死海
撒哈拉沙漠
马里亚纳海沟
What is special about each place
the Nile River
（6671km）
How long is it
It’s 6,671 kilometres long.
What is special about it
It’s the longest river in the world.
It helps ancient Egyptian civilization develop.
six thousand
six hundred and seventy-one
/ d p n/ / s v la ze n/ 古埃及文明
the Angel Falls
（979m）
How high is it
What is special about it
It’s the highest waterfall in the world.
nine hundred and seventy-nine
It’s about 979 metres high.
How can we read these large numbers
How can we read large numbers
2
506
112
375
①先从右至左数,每三位
数加一个逗号.(先忽略
小数点及后面部分)
,
,
,
②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
two billion,
five hundred and six million,
one hundred and twelve thousand,
three hundred and seventy-five,
. 53
③point+小数
点后逐个读
point
点
point five three
e.g. 2506112375.53
注意:
① 英语中没有“万”这个单位,“万”须借用“千”表示(ten thousand),“十万”用“十个千”表示(one hundred thousand)。
② hundred 后通常加连词 and。若读数中百位数为 0, 则在 thousand 后加 and。
How can we read large numbers
9,083
9,000,000
11,000
nine thousand and eighty-three
nine million
eleven thousand
416
four hundred and sixteen
8,848.86
eight thousand, eight hundred and forty-eight point eight six
Everyone, welcome to our geography game show. Let’s learn about more natural wonders!
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
Superlative forms of adjectives(最高级)
对这些地方的描述
highest
biggest
lowest place
deepest point
Check like this:
Mount Qomolangma is the highest mountain in the world.
1c
Listen again. Complete the measurements in 1b with the numbers below.
Place Description Measurement
Mount Qomolangma the highest in the world ________ metres high
Sahara Desert the biggest in the world about _____________ square kilometres in size
Dead Sea the lowest place on earth _________ metres below sea level
Mariana Trench the deepest point in the ocean about _________ metres deep
416 8,848.86 11,000 9,000,000
8,848.86
9,000,000
416
11,000
Let’s introduce the four natural wonders according to the table.
/ me m nt/ 测量
Introduction
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
Mount Qomolangma
Sahara Desert
Mariana Trench
Dead Sea
Language Points
1. 8,848.86 metres high 8848.86米高
这座楼约有50米高。
The building is about 50 metres high/tall.
数量的表达
在英语中，表示"事物的长、宽、高"等时，其表达方式为:
基数词+表示'度量'的名词 (metre,kilometre,foot等)+形容词(long, wide,high/tall等)
注意: 若基数词大于1，则表示"度量"的名词应用复数形式。
2. about 9,000,000 square kilometres in size 面积约900万平方千米
这个广场面积大约500平方米。
The square is about 500 square metres in size.
in size 在尺寸上；在大小方面
拓展: 英语中，表示"事物的长、宽、高"等时，还可用:
基数词+'度量'名词+in size/length/height
Analyze
Ask about natural wonders
Talk about geography facts
What’s the lowest/highest/biggest/ deepest place in the world/on earth
How low/high/big/deep is it
Where’s ...
It’s the -est in the world/ on earth.
It’s ... metres/kilometres deep/high.
It’s ... square kilometres (in size).
It’s in the...
Give feedback (反馈)
Correct / Right / Wrong / Well done.
That’s correct/ right.
1d
Talk about the places you have learnt about.
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 ...
Mount Qomolangma
Sahara Desert
Mariana Trench
Dead Sea

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