(共15张PPT)
Unit7 What’s the highest mountain in the world
Section A 1a-1c
The world is so big. What geographical facts do you know about it
geographical 地理的
/ d i ɡr f k( )l/
Lead in
geography n 地理
How high is Qomolangma
Qomolangma is about 8,848.86
meters high.
thousand
eight
eight hundred and forty-eight
point eight six
point
Qomolangma is the highest mountain in the world.
Which is the highest mountain in the world
It‘s higher than any other mountain in the world.
Let’s learn
1,450,506,021.08
朗读数字时，从小数点开始，从右往左，将每三位数看作一个单位。
一逗读千（thousand），二逗百万（million），三逗十亿（billion）
thousand
million
billion
百位数和十位数之间有and，百位为零时thousand后面加and。
and
and
and
小数点读point，后面的数字单个读。
point
one billion, four hundred and fifty million, five hundred and six thousand and twenty-one, point zero eight
How to read numbers
Let’s learn
It’s about 9,000,000 square
kilometers in size
million
nine million
The Sahara is the biggest desert.
How big is the Sahara
Which is the biggest desert in the world
It is bigger than any other desert in the world.
Which is the longest river in the world
It’s the Nile尼罗河.
How long is it
It’s 6671 kilometers long.
six thousand six hundred and seventy-one kilometers
[na l]
It is the longest river in the world.
It is longer than any other river in the world.
Which is the biggest salt lake in the world
It’s the Caspian Sea里海.
How deep is it
It’s 1025 meters deep.
one thousand and twenty-five meters
[ k spi n si:]
It is the deepest salt lake in the world.
It is deeper than any other salt lake in the world.
The Caspian Sea is 1,025 meters deep.
The Nile is 6,671 kilometers long.
Qomolangma is 8,848.86 meters high.
The Sahara is about 9,000,000 square kilometers in size.
How to read large numbers
One thousand
and
twenty-five
Six thousand
and
seventy-one
six hundred
Eight thousand
and
forty-eight
eight hundred
point
eight six
Nine million
1a
Match the geographical facts you know.
The Sahara is about 9,000,000 square kilometers in size.
The Caspian Sea is 1,025 meters deep.
The Nile is 6,671 kilometers long.
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
Qomolangma is 8,848.86 meters high.
1a
How high is Qomolangma
How big is The Sahara
How deep is The Caspian Sea
How long is The Nile
Qomolangma is ___________ than any other mountain in the world.
The Sahara is _____________ desert in the world.
The Caspian Sea is _______________ of all the salt lakes.
The Nile is _______________ river in the world.
higher
the biggest
the deepest
the longest
Listen and complete the sentences.
1b
Listen and fill in the blanks.
Teacher: Yesterday, we learned some important geographical facts. I hope you all still remember them. I’m going to test you now by asking _________ questions. First, what’s the __________ mountain in the world
Boy 1: Qomolangma! It’s higher than ________________________ in the world.
Teacher: That’s right. And who can tell me what the Sahara is
Girl 1: The Sahara is ________________________ in the world.
Teacher: Very good. And which is the deepest ___________ in the world
Girl 2: The Caspian Sea is _______________of all the salt lakes.
Teacher: You’re all so smart! Now, for the last question, which is ___________________ in the world
Boy 1: I know! The Nile is the longest river in the world.
Boy 2: And the Amazon is _______________________ river in the world.
Teacher: _________________ you know the answers to all my questions. Good job!
a few
highest
any other mountain
the biggest desert
salt lake
the deepest
the longest river
the second longest
It seems that
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
Boy1: 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!
Qomolangma 8,848.86 meters high
The Sahara 9,600,000 square kilometers in size/large
The Caspian Sea 1,025 meters deep
The Nile 6,671 kilometers long
Qomolangma is 8,844.43 meters high.
It is the highest mountain in the world.
It is the highest of all the mountains.
It is higher than any other mountain in the world.
Let’s practice
The Sahara is 9,600,000 square kilometers in size/large
It is the biggest desert in the world.
It is the biggest of all the deserts.
It is bigger than any other desert in the world.
A:What/Which is the ____in the world
B:It's _______.
A:How _____ is it
B:It's _________.
(8,848.86 meters high)
(about 9,600,000 square kilometers in size)
1,025 meters deep
(6,671 kilometers long)
The Nile
（longest river）
Qomolang
The highest mountain）
The Sahara
(biggest desert)
The Caspian Sea
( the deepest salt lake）
Pair Work
Finish the sentences with the right forms of the adjs.
1. Kate is young, but Joe is ____________.
2. My shoes are new. My sister’s are ______ than mine.
3. Her bag is heavy, and his is ___________ than hers. But yours is _________________ of all.
4. Tom’s kite is high. Jim’s is ______ than Tom’s. Mike’s is _______________ of them all.
5. Bill is seven. John is nine and Tom is eleven. Tom is ______ than John and Bill. Bill is __________ than John. Bill is ________ and Tom is ______________ of the three.
younger
newer
heavier
the heaviest
the highest
older
younger
the youngest
the oldest
higher
