Unit 7 What’s the highest mountain in the world? SectionA 1a-1c课件 (共40张PPT无音频)

2019年春人教英语八下课件


Unit 7
What's the highest mountain in the world?
Period 1 ( 1a-1c)
1.能熟练掌握的大数字的读法并运用大数字描述事物的规格（长、宽、高）。
2.能熟练地运用已学过的最高级来描述世界之最。
3.谈论地理知识以及世界各地的自然风光

Step1 Learning aims 学习目标
Step2 Learn by yourself ( 2 minutes)
Can you give us some tops of
the world?
How high is Qomolangma?
Qomolangma
It’s 8,844.43 meters high.
How deep is the Caspian Sea?
It’s 1,025 meters deep.
The Caspian Sea
How long is the Nile?
It’s 6,671 kilometers long.
The Nile
How large is the Sahara?
It’s 9,600,000 square kilometers in size.
The Sahara
Qomolangma
The Caspian Sea
The Nile
The Sahara
珠穆朗玛峰
里海
尼罗河
撒哈拉大沙漠
I can read them!
珠穆朗玛峰
尼罗河
里海
撒哈拉沙漠
Let me try!
New word
square /skwε?/ 平方；正方形
meter /mi:t?/ 米；公尺
deep /di:p/ 深的；纵深的
desert /'dez?t/ 沙漠


平米；正方形
米；公尺
深的；纵深的
沙漠
Let me try!
I can recite them!

Let’s enjoy the natural beauty.
Yangtze River
longest
The Yangtze River is the longest river in China.
What’s the longest river
in China?
Qinghai Lake
salt lake
biggest
Qinghai Lake is the biggest salt lake in China.
What’s the biggest salt lake in China?
the Caspian Sea
lake
biggest
The Caspian Sea is the biggest lake in the world.

What’s the biggest lake in the world?

the Nile
longest
The Nile is the longest river in the world.
What’s the longest river in the world?
Qomolangma
highest
Qomolangma is the highest mountain
in the world.

What’s the highest mountain in the world?

the Sahara
biggest desert
The Sahara is the biggest desert in the world.
What’s the biggest desert in the world?
Describe the tops in your hometown.
家乡之最
Qomolangma is 8,844.43 meters high.
The Caspian Sea is 1,025 meters deep.
The Nile is 6,671 kilometers long.
48米高
25米深
61千米长
1.7米宽


48 meters high
25 meters deep
61 kilometers long
1.7 meters wide
Conclusion(结论):
英语表示有多高（长,宽,深……）其结构为：
数字+ 数量单位 + adj

What’s the population of China?
13,680,000,000
1,025



9,600,000
15,648,205,000
8,844.43
eight thousand eight hundred and forty-four point four three
point

one thousand and twenty-five
nine million six hundred thousand
fifteen billion six hundred and forty-eight million two hundred and five thousand
英语大数字读法（千位数以上 ）：

从数字的右端向左端数起，每三位数加一个逗号“，”。从右开始，
第一个“，”表示 thousand（千），
第二个“，”表示million（百万），
第三个“，”表示billion(十亿)。
6,671 six thousand six hundred and seventy-one
9,600,000 nine million six hundred thousand
What’s the population of China?
million
thousand


13,680,000,000

billion
Can you read the below numbers?
6,671
9,724.186
4,500,001
six thousand six hundred and
seventy-one
nine thousand seven hundred
and twenty-four point one eight six
four million five hundred
thousand and one
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

Exercises
翻译：
1. 这间房子有4米长。
This room is 4 meters ______.
2. 这条河有20米宽。
This river is 20 meters _______.
3.这座山有100米高。
The mountain is 100 meters ________.
long
high
wide
单项选择
( ) 1. The Sahara is ______ in the world .
A. the biggest desert B. biggest desert
C. the biggest deserts
( )2. The Nile is 6,671 _________
A. kilometers B. kilometer long C. kilometers long
( )3. ---What’s the _______ mountain in the world?
--- Qomolangma
A. high B. higher C. highest
考考你
A
C

C
1、（1）用最高级描述自然景观和物体

（2）英语表示有多高（长,宽,深……）结构为：
数字+ 数量单位 + adj.
（3）表达较大的数
10, 000 ten thousand 一万
1,000,000 one million一百万
1,000,000,000 one billion 十亿

2、单词句型
（1）square, meter, desert, deep
（2）Qomolangma is the highest mountain in the world.


Summary
小结


（有志者事竟成 ）

Come on , boys and girls!
Let's share!
Where there is a will, there is
a way
Homework

Find more tops of the world.
How large is the Sahara?
It’s about 9,600,000 square kilometers in size.
The Sahara
The Sahara is about 9,600,000 square
kilometers in size.
家乡之最 Discussion and writing
Ginkgo tree
银杏树
Shuhe river
沭河
Maqi Mountain
马亓山







家乡
之最
Shuhe river 300 kilometers long The longest river
Maqi Mountain 662 meters The highest mountain
Ginkgo tree about 4000 years
The oldest tree
A:What is the ….in Juxian County?
B:It is…….
A: How long/ high/old is it ?
B:It is……
Write it like this:
…… is the …… in Juxian County. It is …….long.
……is the …… in Juxian County. It is ……. high.


Can you read these numbers?
6,300
5,000
5,464
300
Can you translate the below sentences?
1. 6,300是最大的数字。
6,300 is the biggest (largest) number.
2. 300是最小的数字。
300 is the smallest number.
3. 6,300比5,000要大很多。
6,300 is much bigger than 5,000.
4. 5,464和5,000差不多一样大。
5,464 is almost as big as 5,000.
Step 3 Match the facts you know
Qomolangma 　about 9,600,000square 　　　　　　　　　　　　kilometers in size
The Sahara 1,025 meters deep
The Caspian Sea 6,671 kilometers long
The Nile 　　8,844.43meters high




40
英语数字读法
1．百位数
“hundred(百)”,表示101—999先说几百，再加and,再加末尾两位数或末尾数，十位和个位之间用连字符“—”连起来。
101 one hundred and one
325 three hundred and twenty-five
2．千位数以上
从数字的右端向左端数起，每三位数加一个逗号“，”。从右开始，第一个“，”表示 thousand（千），
第二个“，”表示million（百万），
第三个“，”表示billion(十亿)。
然后一节一节用几百几十几的方法表示。在这类数词中hundred, thousand, million , billion等词一般都用单数形式。
6,671 six thousand six hundred and seventy-one
9,600,000 nine million six hundred thousand