(共32张PPT)
What’s the highest mountains in the world
What’s the highest mountains in the world
Unit 7
Section A 1a-2d
let’s travel around the world.
Lead in
Where did we visit just now
Qomolangma
the highest mountain in the world
Presentation
Where did we visit just now
the Sahara
the biggest desert in the world
Lead in
Where did we visit just now
the Caspian Sea
the deepest salt lake in the world
Presentation
Where did we visit just now
the Nile
the longest river in the world
1a Match the facts with the pictures.
about 9,000,000 square kilometers in size
1,025 meters deep
6,671 kilometers long
8848.86 meters high
Qomolangma
The Nile
The Caspian Sea
The Sahara
about 9,600,000 square
kilometers in size
1,025 meters deep
6,671 kilometers long
8,848.86 meters high
square在此处作形容词，意为
“平方”，用于数字后表示面积。
square还可作名词，意为“正方形；广场”。
in size 在尺寸上；在大小方面
与in size结构类似的还有：
in height 在高度上
in weight 在重量上
How to read larger numbers
Let’s think
百
百万
千
十亿
two billion and sixty-five million, six hundred and nine thousand, nine hundred and eighty point three four.
点
billion
million
thousand
hundred
point
2, 065, 609, 980. 34
billion
million
thousand
point
three four
and
读时，将每三位数看做一个单位，自右向左依次为thousand千，million百万，billion十亿。
每个单位按百、十、个位向右读。
其中百位到十位之间要加入 and。小数点读point。
summary
小窍门
自右向左三逗分；
一逗千(thousand)
二逗百万(million)
三逗十亿(billion)
左右三位分开读；
百位十位and连。
这种方法你喜欢？
Are you clear
Let’s have a try.
Can you read
these large
numbers
Let’s read
7,742.33
1,390,000,000
3,563,129
2,000,060,000
three million, five hundred and sixty-three thousand, one hundred and twenty-nine.
one billion, three hundred and ninety million.
seven thousand, seven hundred and forty-two point four three.
two billion and sixty thousand.
Let’s read
9,600,000
1,025
6,671
8,848.86
six thousand, six hundred and
seventy-one.
one thousand and twenty-five.
nine million, six hundred thousand.
eight thousand, eight hundred
and forty-eight point eight six .
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
Can you predict what we will fill in the following blanks
比较级+than any other+可数名词单数
“……比其他任何一个……都……”，指
同一范围内的比较，表达最高级的意义。
比较级+ than any +可数名词单数
“……比任何一个……都……”，指不
在同一范围内进行比较。
听关键词，可以忽略听不懂的结构。
Listen and read.
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
地理事实
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+形容词最高级 第几……的
A: What’s the ... ... in the world
B: ... ...
A:How high/big/deep/long is it
B: It is ... ...
1c Use the information in 1b to make conversations.
8848.86 meters high
6,671 kilometers long
9000000 square kilometers in size
1,025 meters deep
Read the numbers below.
5,000
6,300
5,465
300
Make as many sentences as you can to compare the four numbers.
six thousand and three hundred
five thousand, four hundred and sixty-five
five thousand
three hundred
For example:
6,300 is the biggest/largest number.
6,300 is much bigger than 5,000.
While-listening
2a
Listen and number the facts [1-4] in the order you hear them.
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 almost as big as the US, and it is the biggest country in Asia.
4
2
1
3
n. 亚洲
长江
2b Listen again and fill in the blanks in 2a with the numbers in the box.
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 almost as big as the US, and it is the biggest country in Asia.
4
2
1
3
6,300
5,464
5,000
300
Listen and read.
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.
the length
the main reason to build
the most famous part
about 8,850 kilometers long
protect their part of the country
Badaling
Read the conversation and fill in the table.
The Ming Great Wall
If we’re only talking about the parts from the Ming Dynasty, it’s about 8,850 kilometers _____. This makes it the _______ wall in the world. The main reason why the ancient emperors built the wall was to protect their part of the country. As you can see, it’s quite ____ and _____. As far as I know, there are no other __________ objects as big as this.
longest
long
Read the conversation and fill in the blanks.
tall
wide
man-made
Feel free to ask me anything on today’s Great Wall tour.
2d
Role-play the conversation.
How long is the wall
Ah, the most popular question! If we’re only talking about the parts from the Ming Dynasty, it’s about 8,850 kilometers long. This makes it the longest wall in the world.
feel free to do sth.
(可以)随便(做某事)
tour作名词：
a tour of/around… ……的旅行
辨析：tour, trip, journey与travel
tour常指以观光、视察、购物等为目的的旅行，也可指明星的巡演。
trip常指短距离的旅行、远足。
journey常指远距离的陆地旅行。
travel常指远距离旅行或国外旅行。
tour作动词：“旅行；旅游”
tourist是可数名词，“旅行者；观光者”
The main reason was to protect their part of the country. As you can see, it’s quite tall and wide. As far as I know, there are no other man-made objects as big as this.
Wow, that’s amazing! Why did the ancient emperors build the wall
Yes, it’s the most famous part.
Is Badaling part of the Ming Great Wall
辨析：amazing与amazed
amazing “令人大为惊奇的；令人惊喜
（或惊叹）的”，其主语或所修饰的名词通常是物，常用来说明事物的特征。
amazed“大为惊奇的”，其主语或所修饰的名词通常是人，常用来说明人的感受。
protect … from / against…
保护……不受……（的伤害 ）
protection n. 保护；保卫
= so far as I know
就我所知
1.Qomolangma is higher than any other mountain in the world.
比较级 + than any other + 可数名词单数
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。
Language Point
= She is the thinnest in her class.
她比她们班里任何一个人都瘦。
She is thinner than any other student in her class
形容词
表达
最高级含义
2. 比较级 + than + the other + 可数名词复数+in/of.
The Nile is longer than the other rivers in the world.
1.the+ 最高级 +单数名词+in/of.
The Nile is the longest river in the world.
2.比较级+than+any other+单数名词+in/of.
The Nile is higher than any other river in the world.
2.形容词的最高级及比较级表达最高级含义.
Language Point
Language Point
3. China has the biggest population in the world.
population
population作主语，表达一个整体概念时，谓语动词用单数，
当其前有分数或百分数修饰时，谓语动词可用单数或复数。
The population of Nigeria is more than 100 million. (强调整体性)
尼日利亚的人口数量为1亿多。
Three quarters of the population in the city is/are from other parts of the country.
这个城市里四分之三的人口来自全国其他地方。
形容人口多少
用法
形容人口多用big，large；少用small。
The city has a big/large population.
这个城市人口多。
询问人口数量
What’s the population of...
What’s the population of the world now
现在世界人口是多少？
What’s the population of China
=How large is the population of China
中国有多少人
The Yangtze River is__________________ river in the world. (第三长河）
2. The Atlantic is __________________
ocean in the world. ( 第二大洋）
the third longest
the second biggest
I. 根据提示完成句子。
Exercises
3. Lin Tao is ___________________________
in the class because he never gets to school on time. （最懒的学生之一）
4. Edison was ____________________________
in the world. (最伟大的发明家之一）
one of the laziest students
one of the greatest inventors
1. This bike is more expensive than that bike.
That bike is _____ __________ than this
bike.
That bike is ________ _______ this bike.
That bike is not ____ __________ ___ this
bike.
less
expensive
cheaper
than
as
expensive
as
II. 同义句转换。
2. I prefer maths to English.
I like maths __________________ English.
better than
3.He is the tallest student in the class.
He is _______________________________
in the class.
taller than any other student
any other + 名词单数
