Unit 7 What's the highest mountain in the world? Section A 1a-2c课件(共27张PPT)人教新目标(Go for it)版八年级下册

(共27张PPT)
Unit 7
What’s the highest mountain
in the world
Section A 1a-2c
你知道在英语中，大数字怎么读吗？
1. 从右到左, 三位数为一组，中间用空格（或者逗号）隔开
153 406 799 23,446,120
2. 从右到左，每一组数字后分别读 thousand, million, billion
9,600,000
1,400,000,000
3. 每组数字的百位和十位之间加 and
6,671
39,830
nine million six hundred thousand
one billion four hundred million
six thousand six hundred and seventy-one
thirty-nine thousand eight hundred and thirty
4. 若十位为零，直接在百位和个位之间加 and；
若百位和十位都是零直接在千位和个位之间加 and.
504
6,400,001
5. 小数点读做 point，小数点后面依次按数字读出
5.45
25.18
你知道在英语中，大数字怎么读吗？
five hundred and four
six million four hundred thousand and one
five point four five
twenty-five point one eight
Can you read the numbers
10
25
100
175
1,000
1,342
1,000,000
2,300,000 3.54
ten
twenty-five
one hundred
one hundred and seventy–five
one thousand
one thousand, three hundred and forty-two
one million
two million, three hundred thousand
three point five four
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。
Here are some tips for you.
Let’s learn
Have a try
86，510
eighty-six thousand five hundred and ten
2，019
two thousand and nineteen
百位数没有，不读
7，725，385
seven million seven hundred and twenty-five thousand three hundred and eighty-five
Have a try
9，600，000
nine million six hundred thousand
84 . 14
eighty-four point one four
小数点用point表示
What’s the highest mountain in the world
How high is it
Qomolangma
Qomolangma is the highest mountain in the world.
It is 8,844.43 meters high.
lead in
eight thousand eight hundred and forty-four point four three
What do you know about the following numbers
1,025 meters deep
The Caspian Sea
one thousand and twenty-five
What do you know about the following numbers
6,671 kilometers long
The Nile
six thousand six hundred and seventy-one
What do you know about the following numbers
9,600,000 square kilometers in size
The Sahara
nine million six hundred thousand
0
1a Match the facts you know.
Qomolangma about 9,600,000 square kilometers in size
The Sahara 1,025 meters deep
The Caspian Sea 6,671 kilometers long
The Nile 8,844.43 meters high
基数词 + 单位词s + 形容词(long, wide, high, deep等)
长、宽、高、深、面积的表达方法
Match the facts you know.
Pre-listening
1a
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
=in depth
=in length
=in height
长、宽、高、深、面积的表达结构：
数字 + 单位词 + adj.（deep,long, high...）
= 数字 + 单位词 + in + n.（depth,length,
height,size...）
【拓展延伸】
作定语时用合成词“数词 - 单位词单数 – 形容词”。
This 20-meter-long rope isn’t long enough to
help climb the mountain.
about 9,600,000 square kilometers in size
1,025 meters deep
6,671 kilometers long
8,844.43 meters high
A: How high is Qomolangma
B: It is …….
Qomolangma
The Sahara
The Caspian Sea
The Nile
1a. Geographical facts 地理事实.
面积平方公里
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。
1c Use the information in 1b to make
conversations.
Practice
A: What is the deepest / biggest /
longest / highest ... in the world
B: It's ...
A: How deep / big / long / high is it
B: It is ...
Practice in pairs like this:
Do you know any geographical facts about China
Yangtze River
Yellow River
How long are the two famous rivers
What's the population of China
人口数量
How long is the Great Wall
Great Wall
Let’s brainstorm.
What can you learn from this picture
China has the biggest population /p pju le n/.
How old is China
It’s over 5,000 years old.
What is the longest river in China
The Yangtze River.
Let’s listen
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
2a
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
Listen !
2b
6,300
5,464
5,000
300
Example: China is one of the oldest countries in the world. It’s over 5,000 years old. It has much longer history than the US. The US is not even 300 years old. China has the biggest population in the world. It’s a lot bigger than the population of the US.China is almost as big as the US.But it is the biggest country in Asia. There are two famous rivers in China. One is the Yangze River, the other is the Yellow River...
Imagine you are Mike,try to give a report by using the information in 2b.
The differences between China and the US
Report time
Language points
1. 长、宽、高、深、面积的表达方法
The river is 20 meters wide. = The river is 20 meters in width.
基数词 + 单位词 + 形容词（long, wide, high, deep等）
基数词 + 单位词 + in + 名词（length, width, height, depth, size等）
【拓展延伸】作定语时用合成词“数词 - 单位词单数- 形容词”。
This 20-meter-long rope isn’t long enough to help climb the mountain.
2. Qomolangma is higher than any other mountain in the world.
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。
She is thinner than any other student in her class. = She is the thinnest in her class.
other必不可少，用以将主语从比较对象中排除，避免逻辑矛盾。
比较级 + than any other + 可数名词单数
【特别提醒】如果比较对象不在同一范围内或不属于同一类别，应用“形容词/副词比较级 + than any（任何的） + 可数名词单数”。
The Pacific Ocean is larger than any lake in the world.
练一练
Hulunbuir is bigger than _____________ city in China.
Hulunbuir is bigger than _____________ city in Anhui.
any other
any
1. It is … meters high (long, wide…).
2. What’s the population of ...
3. much, even, a little, still, a lot, less+形容词比较级
4. as far as I know…
as / so far as I can remember / I can tell / I can see
as far as 远至
5. 合成词man-made
Summary
3. 世界上最深的咸水湖是哪一个？
is salt lake in the world
4. 尼罗河是世界上最长的河流。
The Nile is in the world.
5. 练习1比其它任何一个练习都容易。
Exercise 1 is easier than _____ ______ _________.
世界上最高的山是什么？
is mountain in the world
2.世界上最大的沙漠是什么？
What is in the world
Translate the sentences.
the biggest desert
What the deepest
What the highest
the longest river
any other exercise
Exercises