Unit7 What's the highest mountain in the world SectionA 1a-2d课件＋音频(共38张PPT)人教版英语八年级下册

(共38张PPT)
Unit 7
What's the highest mountain
in the world
Unit 7
What's the highest mountain
in the world
Section A 1a-2d
Section A 1a-1c
Let’s read!
three
one thousand
and twenty-three
twenty-three
one hundred
and twenty-three
six thousand
six hundred
and twenty-three
23
1023
123
3
6,623
Ask：Where is the “and”
十位数前！
百
101
320
678
542
769
298
hundred
one hundred and one
three hundred and twenty
six hundred and seventy-eight
five hundred and fourty-two
seven hundred and sixty-nine
two hundred and ninty-eight
1,000
2,000
one thousand
two thousand
3,025
three thousand and twenty-five
6,325
six thousand three hundred and twenty-five
8,005
eight thousand and five
eight thousand eight hundred and forty-four
point four three
8,844.43
数词的解读技巧
如果在万位以下的话只要直接读出该数值即可。
大数字如果在万位以上的话，从右往左数，每三位分成一个单元。
借助billion, million, thousand, hundred. 这些英文的数值，每次读完一个单元后，就加上这些数值。
Can you read these numbers
100
1000
10,000
100,000
1,000,000
10,000,000
100,000,000
1,000,000,000
9,600,000
one hundred 一百
one thousand 一千
ten thousand 一万
one hundred thousand 十万
one million 一百万
ten million一千万
one hundred million一亿
one billion 十亿
1,300,000,000
20,231
twenty thousand two hundred and thirty-one
nine million six hundred thousand
one billion three hundred million
thousand
million
billion
How to read large numbers
2,506,981,065.34
Step2：从右到左，小数点读“point”，第一个“,”读thousand(千), 第二个“,”读million( 百万),第三个“,”读billion(十亿)。
Step1：从小数点开始从右到左，每3个数加一个“,”。
Step3：读的时候按百位数读，百位和十位之间加and，若百位为0，十 位前加and,若十位为0，个位前加and。小数点后面的数分别只读出数字。
billion
point
thousand
million
and
and
and
two billion five hundred and six million nine hundred and eighty-one thousand and sixty-five point three four
Lead in
111,121,435,678
billion
million
thousand
one hundred and eleven billion
one hundred and twenty-one million
four hundred and thirty-five thousand
six hundred and seventy-eight
2.16
zero point one
0.1
two point one six
52.358
fifty two point three five eight
48
564
4,321
23,357
1,243,233
thousand 千
hundred 百
million 百万
forty-eight
five hundred and sixty-four
four thousand , three hundred and twenty-one
twenty-three thousand ,three hundred and fifty-seven
One million, two hundred and forty-three thousand, two hundred and thirty-three
billion 十亿
Read these numbers！
8,844
6,671
1,025
9,600,000
.43
point
Read these numbers！
nine million six hundred thousand
six thousand six hundred and seventy-one
one thousand and twenty-five
eight thousand eight hundred and forty-four
point four three
the beauty of nature
mountain
desert
river
lake
ocean
salt lake
咸水湖
fresh lake
淡水湖
Do you know these places
Qomolangma
the Caspian sea
the Nile
the Sahara
mountain
salt lake
river
desert
A:What’s the longest river in the world
B:The Nile is the longest.
A:How long is it
B:It’s over 6,671 kilometers long.
A:What is the second longest river in the world
B: The Amazon is the second longest river in the world.
six thousand six hundred and seventy-one
It is in Africa.
6,671 kilometers
the Nile
=What’s the length of it？
A: What’s the deepest salt lake in the world
B: The Caspian Sea is the deepest salt lake in the world.
It is deeper than any other salt lake.
A: How deep is it
B: It is 1,025 meters deep.
one thousand and twenty-five
1,025 meters
the Caspian Sea
=What’s the depth of it？
A: What’s the highest mountain in the world
B: Qomolangma is the highest mountain in the world.
It is higher than any other mountain.
A: How high is it
B: It is 8,848.86 meters high.
eight thousand eight hundred and forty-eight point eight six
It is in China.
8,848.86 meters
Qomolangma
=What’s the height of it？
A: What’s the biggest desert in the world
B: The Sahara is the biggest desert in the world .
A: What’s the size of the Sahara
B:It is about 9,000,000 square kilometers in size.
It is in North Africa.
nine million
面积
desert
9,000,000 square kilometers
The Sahara
=How big is it？
A: How high\tall is Qomolangma
B: It’s 8,848.86 meters high.=It’s 8,848.86 meters in height.
Practice
A:How big is the Sahara (in size)
B:It’s about 9,000,000 square kilometers in size.
A: How deep is The Caspian Sea
B: It’s 1,025 meters deep.=It’s 1,025 meters in depth.
A: How long is the Neil
B: It’s 6,671 meters long.=It’s 6,671 meters in length.
A: How long is the Nile
A: How wide is the wall
B: It’s 1.7 metres wide.=It’s 1.7 metres in width.
问高度
问大小（面积）
问深度
问长度
问宽度
Summary
Ask: How long/wide/high/ big / deep +be+主语
Answer: 主语+be+
长
宽
高
大小
深度
基数词+单位+long,wide, high, deep
基数词+单位+ in length/width/height/size/depth
Lead in
What’s the length/width/height/size / depth of+n.
1a
Match the facts you know.
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
1b.Listen their discussion at the first time and match the answers.
Qomolangma
The Sahara
The Caspian sea
The Nile
the biggest desert
the highest mountain
the longest river
the deepest salt lake
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.
1b
Listen and complete the sentences.
higher
the biggest
the deepest
the longest
＝Qomolangma is the highest mountain in the world.
Which is the second longest river in the world
The Amazon is the second longest river in the world.
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
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!
A: What is the biggest/ … in the world
B: … is….
A: How deep\wide\long\high… is it
B: It is… .
Pairwork: choose any picture to ask and answer.
8,844.43 meters high
1,025 meters deep
6,671 kilometers long
about 9,600,000 square kilometers in size
Post-listening
A: What/Which is ____________ mountain in the world
B: It's _____________.
A: How ______ is it
B: It’s _____________________________.
the highest
Qomolangma
high
8,848.86 meters high/in height
A: What/Which is _____________ river in the world
B: It’s _____________.
A: How ______ is it
B: It’s _____________________________.
the longest
The Nile
long
6,671 meters long/in length
Qomolangma
8,848.86 meters high
the Nile
6,671 meters long
Post-listening
A: What/Which is ______________ lake in the world
B: It's _________________.
A: How ______ is it
B: It’s _____________________________.
the deepest
deep
1,025 meters deep/in depth
A: What/Which is _____________ desert in the world
B: It’s _____________.
A: How ______ is it
B: It’s _______________________________.
the biggest
The Sahara
big
9,000,000 square kilometers in size
the Sahara
9,000,000 square kilometers
The Caspian Sea
the Caspian Sea
1,025 meters deep
2a
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.
6,300 5,000 5,464 300
4
2
_____ 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, but it is the biggest country in Asia.
1
3
_____ 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.
Listen again and fill in the blanks in 2a with numbers in the box.
2b
6,300
5,464
6,300 5,000 5,464 300
4
2
_____ 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, but it is the biggest country in Asia.
1
3
5,000
300
Make conversations using the information in 2a.
2c
A: Did you know that China is one of the
oldest countries in the world
B: Yes, I did. It’s much older than my
country.
A: Did you know that Yangtze River is the longest river in China
B: Yes, I did. It’s 6,300 meters long.
A: Wow! That’s long!
A: Did you know that China has the biggest population in the world
B: Yes, I did. It’s a lot bigger than the population of the US.
A: Wow! That’s amazing!
What’s the conversation about
It’s about the Ming Great Wall.
Listen to the conversation in 2d and answer the questions.
1.Who build the wall
2.How long is the Ming Great Wall
3.What does the guide think of the Great Wall
4. Are there any other man-made objects as big as this
The ancient emperors.
It’s about 8,850 kilomoters long.
No, there aren't.
Read the conversation in 2d and answer the questions.
It’s quite tall and wide.
1. Feel free to ask me anything on today’s Great Wall tour.
feel free是英语口语中一个常用表达。
feel free to do something，无需拘束，只管按照自己的意愿去做某事。
e.g.
A: Can I use your bathroom
我可以用一下你的卫生间吗？
B: Yes, feel free.
可以，请随意。
关于今天的长城游中，大家尽管问我任何问题，不要拘束。
1.This makes it the longest wall in the world.
2.The main reason was to protect their part of the country.
3.As far as I know, there are no other man-made objects as big as this.
这使得它成为世界上最长的城墙。
据我所知，再没有其他像它这样大的人造物体了。
最主要的原因的是保护他们那部分的国土。
1.（ 可以）随便做某事
2. 最普遍的问题
3.使某人/某物成为...
4. 古代的皇帝
5. 建城墙
6.主要原因
7. 正如你所看到的
8. 就我所知
9. 人造物体
10. 和...一样
11. 最著名的部分
Phrases
1. feel free to do sth
3.make sb/sth +adj
2. the most popular question
4. ancient emperors
5. build the wall
7. as you can see
8. as far as I know
9. man-made objects
10. as+ adj/adv原级+as...
11. the most famous part
6. main reason
Sentences
1.关于今天的长城之旅，请随意向我提问。
2.这使得它成为世界上最长城墙。
3.主要原因是保护他们那部分的国土。
4.就我所知，再没有其他像它这样大的人造物体了。
1.（ 可以）随便做某事
2. 最普遍的问题
3.使某人/某物成为...
4. 古代的皇帝
5. 建城墙
6.主要原因
7. 正如你所看到的
8. 就我所知
9. 人造物体
10. 和...一样
11. 最著名的部分
1.关于今天的长城之旅，请随意向我提问。
2.这使得它成为世界上最长城墙。
3.主要原因是保护他们那部分的国土。
4.就我所知，再没有其他像它这样大的人造物体了。
Recite