人教版2025春八年级下册英语Unit7 What's the highest mountain in the world?Section A 1a-1c 课件(共38张PPT)

(共38张PPT)
What’s the highest mountain in the world
Unit 7
Section A 1a-1c
Objectives
Students can master key words & phrases:
square, square kilometer, meter, deep, desert, any other, geographical
Students can learn about some geographical facts in the world.
Students can master how to use superlative and comparative“than any other+单数/the other+复数” to talk about the geographical facts.
Students can master how to express big numbers and describe the feature(length,depth....)of an object.
Students can enjoy the beautiful views on the earth and learn to love our home.
We live on a beautiful planet.
There are great rivers,mountains,deserts and lakes on the earth.
Do you know some important
geographical facts
地理事实
/ dez (r)t/
n. 沙漠
01
What's the highest mountain in the world
Qomolangma is the highest mountain in the world.
It's higher than any other mountain in the world.
珠穆朗玛峰
01
any other 其他任何的
珠穆朗玛峰
01
01
-How high is
-( What's the height of it )
- It's 8,848.86 meters high.
- It's 8,848.86 meters in height.
Qomolangma
meter n. 米； 公尺
n.高度
What's the highest mountain in the world
Qomolangma is the highest mountain in the world.
It's higher than any other mountain in the world.
the latest data(higher)
any other 其他任何的
-How high is
-( What's the height of it )
- It's 8,844.43 meters high.
- It's 8,844.43 meters in height.
It's the highest mountain in
the world.
It's higher than any other mountain in the world.
- What's the highest mountain in the world
Qomolangma
The Sahara is the biggest desert
in the world.
What's the biggest desert
in the world
It is bigger than the other deserts in the world.
撒哈拉沙漠
01
02
the latest data(higher)
the other其他所有的
撒哈拉沙漠
01
02
The Sahara is the biggest desert
in the world.
What's the biggest desert
in the world
It is bigger than the other deserts in the world.
-( What size is it )
-It's about 9,000,000 square
kilometers in size.
the Sahara
- How big is
平方千米
面积
the latest data(smaller)
-It has/covers 9,O00,000 square kilometers.
/skwe (r)/
adj.平方；正方形的；n.正方形；广场
the other其他所有的
The Nile is the longest river
in the world.
It is longer than any other river in the world.
尼罗河
01
03
What's the longest river in the world
-( What size is it )
-It's about 9,600,000 square
kilometers in size.
the Sahara
- How big is
面积
平方千米
the latest data(smaller)
-It’s has/covers 9600000 square kilometers.
/skwe (r)/
adj.平方；正方形的正方形；广场
尼罗河
01
03
- How long is
-( What's the length of it )
-It's 6,671 kilometers long.
the Nile
-It's 6,671 kilometers in length.
The Nile is the longest river
in the world.
It is longer than any other river in the world.
What's the longest river in the world
n.千米
n.长度
里海
01
04
- How long is
-( What's the length of it )
-It's 6,671 kilometers long.
the Nile
-It's 6,671 kilometers in length.
What's the deepest salt lake
in the world
It is deeper than the other salt lakes in the world.
The Caspian Sea is
the deepest salt lake in the world
咸水湖
里海
01
04
What's the deepest salt lake
in the world
It is deeper than the other salt lakes in the world.
The Caspian Sea is
the deepest salt lake in the world
- How deep is
-( What's the depth of it )
- It's 1,025 meters deep.
the Caspian Sea
-It's 1,025 meters in depth.
deep adj. 深的；纵深的
n.深度
咸水湖
Summary
the+ 形容词、副词最高级+in/of
Qomolangma is higher than the other mountains
in the world.
形容词、副词比较级+than+any other+单数名词（the other+复数名词）+in/of
Qomolangma is the highest mountain in the world.
Qomolangma is higher than any other mountain
in the world.
都可表示最高级的意义
同个范围内
Ask: How long/wide/high /big /deep+be+主语？
长
宽
高
大小
深度
基数词 + 单位词 + adj （ long, wide, high, deep 等 ）
Answer:主语+be+
基数词 + 单位词 + in + 名词 （length, width, height, size, depth等）
Summary
Match the facts you know.
Qomolangma about 9,000,000 square kilometers in size
The Sahara 1,025 meters deep
The Caspian Sea 6,671 kilometers long
The Nile 8,848.86meters high
1a
珠穆朗玛峰
撒哈拉沙漠
里海
尼罗河
=in depth
=in length
=in height
How to read big numbers
25
100
525
999
Translate these numbers into English
twenty -five
几十一个位基数词
one hundred
five hundred and twenty-five
几百 and 几十一个位基数词
nine hundred and ninety-nine
s
注意：
表示具体数字时，无论是几百，hundred后面不加s。
2 2 0 4 5 6 7 0 9 2 . 38
Step1: 从小数点开始从右到左，每3个数加一个“”
，
，
，
Step2: 从右到左，小数点读“point”， 第一个“”读thousand（千）,
第二个“”读million（百万），第三个“”读billion（十亿）,
thousand
million
billion
Step3: 从左到右读数，百位和十位或个位之间加and,
若百位为0，thousand和十位加and, 小数点后面的数只数数字，不读数位。
two billion two hundred and four million five hundred and sixty-seven thousand and ninety-two point three eight
and
and
and
point
8,848.86 meters high.
eight thousand
and
forty-eight
eight hundred
point
eight six
about 9,000,000 square kilometers
in size
nine million
6,671 kilometers long
six thousand
and
seventy-one
six hundred
1,025 meters deep
one thousand
twenty-five
and
Say all the big numbers in limited time.
Game
2, 002
1, 078.306
302.54
401, 450, 048
3, 121, 078, 506
32, 304, 410
32, 304, 410
3, 121, 078, 506
401, 450, 048
302.54
1, 078.306
_________ million _____________________ thousand _______________________.
thirty-two
three hundred and four
four hundred and ten
_______ billion ________________________ million _________________ thousand __________________.
three
one hundred and twenty-one
and seventy-eight
five hundred and six
___________________ million ___________________ thousand ______________.
four hundred and one
four hundred and fifty
and forty-eight
____________________ point __________.
three hundred and two
five four
_____thousand _______________ point _____________.
one
and seventy-eight
three zero six
2, 002
_____ thousand and ______.
two
two
What geographical facts do you know
Listen and complete the sentences.
1b
1. Qomolangma is _______ than any other mountain in the world.
2. The Sahara is ____________ desert in the world.
3. The Caspian Sea is ____________ of all the salt lakes.
4. The Nile is ___________ river in the world.
higher
the biggest
the deepest
the longest
guess the answer
Teacher: Yesterday, we learned some important geographical facts. I hope you all still remember them. I'm going to test you now by asking a few questions. First, what's the highest mountain in the world
Boy 1: Qomolangma! It's higher than any other mountain in the world.
Teacher: That's right. And who can tell me what the Sahara is
Girl 1: The Sahara is the biggest desert in the world.
Teacher: Very good. And which is the deepest salt lake in the world
Girl 2: The Caspian Sea is the deepest of all the salt lakes.
Teacher: You're all so smart! Now, for the last question, which is the
longest river in the world
Boy 2: I know! The Nile is the longest river in the world.
Boy 1: And the Amazon is the second longest river in the world.
Teacher: It seems that you know the answers to all my questions. Good job!
the +序数词+最高级
第几.....
It seems that+句子
似乎
问题的答案
Typescript
“比较级+ than any other +单数名词+其他”
“比其他任何一个……都……”
注：该结构可与“the+最高级+in/of....”转换
The Amazon River is the second longest river in the world.
A: What/Which is the ________ mountain in the world
B: It's __________ .
It's than any other mountain in the world.
A: How _______ is it
B: It's __________________________.
highest
Qomolangma
high
8,848.86 meters high/in height
higher
Use the information in 1b to make conversations.
1c
A: What/Which is the ________ river in the world
B: It's _______.
It's _than the other rivers in the world.
A: How _______ is it
B: It's __________________________.
longest
the Nile
long
6,671 kilometers long/in length
longer
Use the information in 1b to make conversations.
1c
A: What/Which is the ________ desert in the world
B: It's ______________.
It's than any other desert in the world.
A: How _______ is it
B: It's __________________________.
biggest
the Sahara
big
9,000,000 square kilometers in size
bigger
Use the information in 1b to make conversations.
1c
A: What/Which is the __________salt lake in the world
B: It's ______________.
It's ___________than the other salt lakes in the world.
A: How _______ is it
B: It's ________________________.
deepest
the Caspian Sea
deep
1,025 meters deep/in depth
deeper
Use the information in 1b to make conversations.
1c
Love our beautiful home
1. Qomolangma is higher than any other mountain in the world.
该结构意为“比其他任何一个……都……”，指同一范围内比较，表示最高级含义。
She is thinner than any other student in her class. = She is the thinnest in her class.
other必不可少，用以将主语从比较对象中排除，避免逻辑矛盾。
比较级 + than any other + 可数名词单数
Language point
【特别提醒】如果比较对象不在同一范围内或不属于同一类别，应用“形容词/副词比较级 + than any（任何的） + 可数名词单数”。
The Pacific Ocean is larger than any lake in the world.
练一练
Hulunbuir is bigger than _____________ city in China.
Hulunbuir is bigger than _____________ city in Anhui.
any other
any
Language point
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.
1.Qomolangma is the (high)mountain in the world.
2.The Sahara is the ___(big) desert in the world.
3.The Nile is 6,671 kilometers _____.
4.The Sahara is about 9,000,000 _____________ （平方公里）
in size.
5.-Which's the deepest salt lake in the world
--It's .
highest
biggest
long
the Caspian Sea
square kilometers
Exercises
Exercises
2. Translate the sentences.
1.这条河长三百米。
2.尼罗河是世界上全长的河。
The river is 300 meters long(in length).
The Nile is the longest river in the world.
=The Nile is longer than any other river in the world.