Unit 7 What’s the highest mountain in the world? SectionA 1a-2c课件（共43张）

(共43张PPT)
Unit 7
What’s the highest mountain in the world?
Section A 1a-2c
Learning aims:
1.Talk about geography and nature.
2.Learn the rules of the superlatives with adjectives and adverbs.
3.Love our nature.
1. square 平方，正方形
square
⑴adj. ―平方米‖ , 用于数字后表面积。
an area of 95 square meters 95平方米的面积
⑵ n , 正方形；广场 Many old people like dancing on the square after supper.
2. meter 米 复数meters 千米kilometer(s)

New words
3. deep 深的adj take a deep breath.深深呼吸
在英语中，表示事物的长、宽、高、深等时，
主要有两种表达方式：
1）：基数词 + 单位+ 形容词（long,wide,tall, deep等）
例句：Yao Ming is over 2 meters tall. The river is 50 meters wide.
2）基数词+ 单位+ in + 名词（length长度; width宽度; height高度; depth深度，weight 重量等）
例句： three feet high = two feet in height. 3英尺高
two meters long = two meters in length 2米长
3.对其提问用how +adj
The river is 50 meters wide.（提问） is the river？


4. population 人口；人口数量
①population做主语且强度整体人口时，谓语动词一般用单数， The population is increasing faster and faster
②当有百分数或者分数修饰时，谓语动词常用复数形式。 Three quarters of the population are workers.
③ 表示人口的\"多\"或\"少\"时, 用"large"或"small" The population of China is very large. 中国人口众多
④询问某国某地有多少人口时, 用\"How large...?";
How large is the population of your hometown? 你们家乡有多少人口? what is the population of …?
What is the population of Canada? 加拿大的人口有多少?
The word’s population is growing ____ and there is _____ land and water for growing rice.
A. more; less B. larger; fewer C. larger; less D. more; fewer
— _____ the population of China?— It’s about 1.3 billion.
A. What’s B. How many is C. How much is
World Record—DO YOU KNOW?
What’s the highest mountain in the world?
World Record
Highest mountain
Name
Qomolangma
Height
8,844.43 meters high
Where
In China
World Record—DO YOU KNOW?
What’s the deepest salt lake in the world?
World Record
Deepest salt lake
Name
Caspian Sea
Depth
1,025 meters deep
Where
Between Asia and Europe
World Record—DO YOU KNOW?
What’s the longest river in the world?
World Record
Longest river
Who
The River Nile
What
6,671 kilometers long
Where
In Africa
World Record—DO YOU KNOW?
What’s the largest hot desert in the world?
World Record
Largest hot desert
Name
The Sahara Desert
Size
9,600,000 square kilometers
Where
In North Africa
How to read large numbers



三位数读法：
每组三位数数字，百位和十位间加and
若十位数为0，则百位和个位间加and
865
706
900

每三位一组，从右边来看，第一个逗号是 thousand(千)，第二个逗号是 million（百万），第三个逗号是 billion（十亿），
4,567,890

于是整个数字读作：
one billion,two hundred and thirty-four million,five hundred and sixty-seven thousand,eight hundred and ninety

thousand
million
169,800,450

million thousand
one hundred and sixty-nine million

Read large numbers
eight hundred thousand
four hundred and fifty
每三位一组，从右边来看，第一个逗号是 thousand(千)，第二个逗号是 million（百万），第三个逗号是 billion（十亿），
1,234,567,890

于是我们就可以一目了然：
最左边的数字是单独的“1”，直接从“ one billion”开始读即可。
接下来的一组是“234个百万”即two hundred and thirty-four million。
接下来的一组是“567个千”即five hundred and sixty-seven thousand
最后直接读出最后一组即可
于是整个数字读作：
one billion,two hundred and thirty-four million,five hundred and sixty-seven thousand,eight hundred and ninety

thousand
million
billion
大数字读法：
英语三位数读法：
1.从右向左三位一组，用逗号隔开。
2.第一个逗号读作thousand，第二个逗号million，第三个逗号billion
3.每组三位数数字，百位和十位间加and
4.若十位数为0，则百位和个位间加and
例子：
827, 800, 706， 4567，2345677
试图写出以下大数字的读法：
1. 953
2. 101
3. 45567
4. 7899256
5. 456788007
844

eight hundred and forty-four
Read large numbers
one thousand
one thousand and twenty-five
six hundred thousand



one million




1,000

1,025
600,000


1,000,000

The Sahara 9,600,000 square kilometers in size
The Caspian 1,025 meters deep

The Nile 6,671 kilometers long
(Nine million six hundred thousand)
(one thousand and twenty-five)
(six thousand six hundred and seventy-one)
Read large numbers

Qomolangma 8,844.43 meters high



0 . 1
3 . 14
4 . 43


zero point one
three point one four
four point four three
Qomolangma 8,844.43 meters high



point
(eight thousand eight hundred and forty-four point four three)
Read small numbers
Try to answer questions
表示长、宽、高时常用句型：基数词 + 单位词（meter, foot, inch, kilo等）+ 形容词（ long, wide, high, tall）
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
the highest mountain
bigger than any other desert
形容词的最高级及比较级表达最高级含义
最高级：the+ 形容词/副词+ est ...+in/of
Qomolangma is the highest mountain /higher than any other mountain in the world.
The Nile is the longest river /higher than any other river in the world.
The Sahara is the biggest desert / in the world.
The Caspian Sea is /deeper than any other salt lake in the world.
bigger than any other desert
the deepest salt lake
最高级：the+ 形容词/副词+ est +单数名词+in/of=形容词、副词比较级+than+any other+单数名词+in/of



-What's the highest mountain in the world? How high is it?
-Qomolangma. It's 8,844.43 meters high. It's higher than any other mountain.

-Did you know that China is one of the oldest countries in the world?
-Yes, I did. It's much older than the US.
-Which is the deepest salt lake in the world?
-The Caspian Sea is the deepest of all the salt lakes.

找出比较级、最高级和标志词












﹖
﹖
。。。。。。之一
修饰比较级

1.比较级

2.最高级


Grammar

comparison
3.同级比较
as…as…
( )1. It’s ____________ in the world .
A. the biggest desert B. biggest desert C. the biggest deserts D. bigger desert
( )2. There are no man-made objects as _____as the Great Wall
A. bigger B. big C. bigger D. the biggest
( )3. The Nile is 6,470 ______________
A. kilometers B. kilometer C. kilometers long D. kilometer long
( )4. Mount Tai is _____________ lower than Qomolangma .
A. lots of B. many C. very D . much
( )5. Shanghai is one of ______________ in the world .
A. more big city B. the biggest city C. the biggest cities D .the most big city
四、用所给单词正确形式填空
1. I think Sprideman is one of_______ cartoons I've ever seen. (interesting)
2. Tim is ____________ in his class.
It means Tim is _______ than any other student in his class. (young)
3. The Yangtze is the first ________ river in China.(long)
Practice in pairs like this:
A: What is the highest mountain in the world?
B: Qomolangma.
A: How high is it?
B: It is 8,844.43 meters high.


1c Use the information in 1a &1b to make conversations.
Practice in pairs:
A: What is the ... in the world?
B: ...
A: How ... is it?
B: It is ...high/deep/in size...
1c Use the information in 1a &1b to make conversations.
1,025 meters deep
9,600,000 km? in size
8,844.43 meters high
6,671 kilometers long
How much do you know about China?
China has the biggest population in the world.
It’s a lot bigger than the population of the United States.
Population (as of Saturday, April 4, 2020)
China 1,410,408,308
The United States 330,536,464
Canada 37,662,126
China is one of the oldest countries in the world.
It’s much older than the United States.
History
China Over 5,000 years old
The United States Not even 300 years old
one of+形容词最高级+名词复数
表示...之一
How much do you know about China?
Listen and number the facts[1-4]in the order you hear them.
__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
2a
Listen again and fill in the blanks in 2a with the numbers
in the box.
4 The Yangtze River is about _______ kilometers long and the Yellow River is ______ kilometers long.
2 China has the biggest population in the world. It’s a lot bigger than the population of the US.
1 China is over ______ years old. It has a much longer history than the US. The US is not even _____ years old.
3 China is almost as big as the US, and it is the biggest country in Asia.
6,300
5,464
5,000
300
6,300 5,000 5,464 300
2b
Is China one of the oldest countries in the world?
Yes, it is. It's much older than the US.
How old is it?
It’s over 5,000 years old.
Make conversations using the information in 2a.
2c
Practice in pairs.
2c
6,300 km
5,000 years
5,464 km
Can you introduce China now?

China is a great country.
For population, it has... in the world. It is a lot/ much ...than...
It is ... in size. It is ...than....
As for history, it is one of .... It is much older than...
I love my country.
1.形容词的最高级及比较级表达最高级含义：
the+ 形容词/副词最高级 ...+in/of = 比较级+ than any other + 单数n.
Qomolangma is higher than any other mountain in the world.=Qomolangma is the highest mountain in the world.
The Sahara is bigger than any other desert in the world. =The Sahara is the biggest desert in the world.
Summary
4. 表示长、宽、高时常用句型：
基数词 + 单位词（meter, foot, inch, kilo等）+ 形容词（ long, wide, high, tall）
5. Read numbers.
2. one of+形容词最高级+名词复数 : 表示...之一
China is one of the oldest countries in the world.
3. much/ a lot +形容词比较级+ than...
China is much/ a lot older than the United States.
Homework
Find more world records with numbers on the Internet and try to read it in English.