(共23张PPT)
Unit 7 Section A (1a-2c)
人教版八年级下册
Content
Learning objectives
01
Lead-in
02
Presentation
03
Listening
04
Summary
05
Homework
06
目录
Learning objectives
After learning this lesson, you can:
Key words & phrases:
square, square kilometer, meter, deep, desert, geographical, population, Asia.
Be able to talk about geography and nature.
Be able to read large numbers.
Lead-in
geographical facts
1. What’s the largest country in the world
2. What’s the second largest country in the world
4. What’s the third largest country in the world
3. What’s the smallest country in the world
Russia.
Canada.
Vatican city.
China.
Presentation
more geographical facts
Qomolangma
the Caspian Sea
the Nile
the Sahara
in Asia
a salt lake
a desert
in Africa
Presentation
Match the facts you know.
1a
Qomolangma about 9,000,000 square kilometers in size
The Sahara 1,025 meters deep
The Caspian Sea 6,671 kilometers long
The Nile 8,848.86 meters high
珠穆朗玛峰
撒哈拉沙漠
里海
尼罗河
Do you know how to read these numbers
=in depth
=in length
=in height
Practice
几百： 数字+hundred 300 几千: 数字+thousand 5,000
几百万：数字+million 500,000 几十亿： 数字+billion 5,000,000,000
几百几: 数字+hundred and +十位或个位 612 605
几千几：数字+thousand, 数字+hundred 2,500 2,560
3. 小数点: 数字+point + 数字 6.66
4. 从后面向前数3个数字一个逗号，如6,789,000.
在写成英文单词时，也用逗号隔开
six million, seven hundred and eight nine thousand
5. 英语中没有1万，10万，1亿的单词
1万=ten thousand 10万=one hundred thousand
Do you know how to read these numbers
hundred
百
thousand
千
million
百万
billion
十亿
Practice
Read the numbers.
1a
hundred
百
thousand
千
million
百万
billion
十亿
trillion
万亿
9,600,000
1,025
6,671
8,844.43
nine million six hundred thousand
one thousand and twenty-five
six thousand six hundred and seventy-one
eight thousand eight hundred and forty-four point four three
Listening
1b
Listen and complete the sentences.
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
任何一座山
any other +名词单数
= the other mountains 其他山
Qomolangma is the highest mountain in the world.
Qomolangma is higher than any other mountain in the world.
Qomolangma is higher than the other mountains in the world.
Practice
Fill in the blanks.
The Sahara is the biggest desert in the world.
The Sahara is bigger than any other desert in the world.
The Sahara is bigger than the other deserts in the world.
The Caspian Sea is the deepest of all the salt lakes.
The Caspian Sea is deeper than any other salt lake in the world.
The Caspian Sea is deeper than the other salt lakes in the world.
The Nile is the longest river in the world.
The Nile is longer than any other river in the world.
The Nile is longer than the other rivers in the world.
The Nile is the longest of all the rivers.
Listen and repeat
1b
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!
地理事实
序数词+最高级
Pair work
1c
A: What is the highest mountain in the world
B: Qomolangma.
A: How high is it
B: It’s 8,848.86 meters high.
A: What is the ….est ….. in the world
B: …...
A: How ….. is it
B: It’s 数字+单位+长/宽/深/高
8848.86
9,000,000
1,025
6,671
What do you know about the geographical facts in China
Before listening
geographical facts of China
the longest river
the second longest river
the biggest salt lake
the biggest desert
the biggest freshwater lake
塔克拉玛干沙漠
鄱阳湖
While-listening
2a
6,300 5,000 5,464 300
____ The Yangtze River is about ______ kilometers long and the Yellow River is _____ kilometers long.
____ China has the biggest population in the world. It’s a lot bigger than the population of the US.
____ China is over ________ years old. It has a much longer history than the US. The US is not even ________ years old.
____ China is about the same size as the US, and it is the biggest country in Asia.
4
2
1
3
While-listening
2b
6,300 5,000 5,464 300
____ The Yangtze River is about ______ kilometers long and the Yellow River is _____ kilometers long.
____ China has the biggest population in the world. It’s a lot bigger than the population of the US.
____ China is over ________ years old. It has a much longer history than the US. The US is not even ________ years old.
____ China is about the same size as the US, and it is the biggest country in Asia.
4
2
1
3
300
6,300
5,464
5,000
rivers
population
history
area
有最多的人口
修饰比较级，多得多
和…是同样的面积
1. population作主语，谓语动词单数
2.修饰人口，big/large/small
3.询问人口数量： What’s the population of China？
After-listening
rivers
population
history
area
the Yangtze River: 6300km
the Yellow River: 5464km
... the biggest population ...
... a lot bigger than ...
The US is not even ... years old.
over... years old
... much longer history than ...
the same size
the … country in ...
Post-reading
Mike：Hi, I’m Mike. I’m from the United States.
Boy： Welcome to our class, Mike. We’re happy to meet you.
Mike：Can you tell me a bit more about China
Girl： Sure! Did you know that China is one of the oldest countries in the world It’s over 5,000 years old.
Mike：Yes, I did. It’s much older than my country—in fact, the United States is one of the youngest countries in the world. It’s not even 300 years old.
Boy： And China has the biggest population, too. It’s a lot bigger than the population of the United States.
Mike：But China is about the same size as the US, right
Girl： Yes, and it’s the biggest country in Asia. We also have some famous rivers. The Yangtze River is the longest river in Asia. It’s about 6,300 kilometers long.
Mike：Wow! I didn’t know that. I thought the Yellow River was longer.
Boy： No, the Yellow River is 5,464 kilometers long. But both rivers are very important to China.
Make conversations.
2c
A: Did you know that China is one of the oldest countries in the world
B: Yes, I did. It’s much older than my country.
A: Did you know that Yangtze River is the longest river in China
B: Yes, I did. It’s 6,300 meters long.
A: Wow! That’s so long!
…
one of +the +adj.最高级+n.复数
最......之一
Exercise
( )1.The Nile is one of the ____ rivers in the world.
A. long B. longer
C. longest D. most longest
( )2.Tianjin is one of ____ in China.
A. rich cities B. rich city
C. the richest cities D. the richest city
( )3.Mount Lao is one of ____ mountains in Qingdao.
Many tourists like climbing it every year.
A. famous B. the more famous
C. most famous D. the most famous
Summary
A: How high is Qomolangma
B: It’s 8,844 meters high.
A: How deep is the Caspian Sea
B: It’s 1,025 meters deep.
A: How long is the Nile
B: It’s 6,671 kilometers long.
A: How big is the Sahara
B: It’s about 9,600,000 square kilometers in size.
Homework
Recite the useful expressions.
Listen and repeat 1b,2a,2b.
谢谢
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