(共35张PPT)
Unit 7 What’s the highest mountain in the world
人教新目标版 八年级下
SectionA 1a-2c 听说优质课
Warming-up
Let's enjoy the beauty of the world.
Do you know these famous places in the world
Qomolangma
珠穆朗玛峰
the Nile
尼罗河
the Caspian Sea
里海
the Sahara
撒哈拉沙漠
['t m lɑ: m ]
[s 'hɑ:r ]
['k spi n]
[na l]
Lead-in
珠穆朗玛峰（珠峰）是喜马拉雅山脉的主峰，是世界海拔最高的山峰，位于中国与尼泊尔边境线上。2005年中国国家测绘局测量的岩面高（裸高即地质高度）为8844.43米。
Qomolangma
It is the highest mountain in the world.
It is 8,844.43 meters high.
It is in China.
meter n. 米; 公尺
Presentation
the Nile
尼罗河是一条流经非洲东部与北部的河流，自南向北注入地中海。尼罗河长6671公里，是世界上最长的河流。尼罗河在印第安人语言叫月亮的眼泪。
It is the longest river in the world.
It is 6,671 kilometers long.
It is in Africa.
kilometer n. 千米
Presentation
the Caspian Sea
里海虽称海，但却是一个巨大的内陆咸水湖。是世界上最深的咸水湖，位于欧洲和亚洲的交界处，大约1,025米深。里海一共与5个国家接壤，也是世界上接壤最多国家的湖。
It is the deepest salt lake in the world.
It is 1,025 meters deep.
It is between Asia and Europe.
Presentation
the Sahara
撒哈拉沙漠是世界最大的沙漠，几乎占满整个非洲北部。沙漠东西约长4,800公里(3000英里)，南北在1300公里至1900公里(800至1200英里)之间，总面积约9065000km 。
The Sahara is the biggest desert in the world.
It is in North Africa.
It is about 9,600,000 square kilometers in size.
平方千米
（面积、体积等）大小
Presentation
It is 8,844.43 meters high米高.
It is 1,025 meters deep米深.
It is 6,671 kilometers long千米长.
It is 9,600,000 square kilometers in size平方千米面积大.
高度
深度
长度
面积
长度、宽度、高度、深度等的表示法：“基数词 + 单位词（meters，kilometers, square kilometers） + 形容词(long长,wide宽, high高, deep深, in size面积)”
这个湖有多深 1025米深。
How deep is the lake It's 1,025 meters deep.
这张桌子两米长，一米宽。
The table is two meters long and one meter wide.
归纳小结
The Caspian Sea is 1,025 meters deep
The Nile is 6,671 kilometers long
Qomolangma is 8,844.43 meters high
The Sahara is about 9,600,000 square kilometers in size
How to read large numbers
One thousand
and
twenty-five
Six thousand
and
seventy-one
six hundred
Eight thousand
and
forty-four
eight hundred
point
four three
Nine million
and
six hundred thousand
1.千位及千位以上数字的表达：以三位数为一个单位，每三位数用“，”隔开。
2.逗号读法:朗读时，将每三位数看做一个单位，依次为billion十亿，million百万，thousand千。每个单位按照百、十、个位向下读，其中百位到十位之间要加入 and。小数点读point。
9,600,000
1,025
6,671
8,844.43
nine million six hundred thousand
one thousand and twenty-five
six thousand six hundred and seventy-one
eight thousand eight hundred and forty-four point four three
归纳小结
1. 1—12: (记住每个单词)
2. 13—19: -teen (thir-, fif-, eigh-)
3. 20—90: -ty (twen-, thir-, for-, fif-, eigh-)
4. 21—99:
十位
_
个位
5. 100, 200, ... 900:
_______ hundred
6. 101—999:
_______ hundred and
__
个位
十位
__
_
个位
7. 多位数:
______ billion (十亿), ______ million (百万), _____ thousand, ______ hundred and
个位
十位
__
_
个位
_
归纳小结
hundred
百
thousand
千
million
百万
billion
十亿
trillion
万亿
101
110
122
143
1,000
10,000
1,000,000
100,000,000
1,000,000,000
one hundred and one
one hundred and ten
one hundred and twenty-two
one hundred and forty-three
one thousand（千）
ten thousand （一万）
one million(百万）
a /one hundred million（一亿）
one billion(十亿）
A thousand million.
百位到十位之间要加入 and。
Practice
8,742.33
2,463,128
1,370,000,000
2,000,030,000
eight thousand, seven hundred and forty-two point four three
two million, four hundred and sixty-three thousand, one hundred and twenty-eight
one billion, three hundred and seventy million
two billion and thirty thousand
小数点读point
百位到十位之间要加入 and。
Practice
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
Match the facts you know.
1a
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
比其他任何山都高=最高
=Qomolangma is the highest mountain in the world.
总结：形容词比较级+than any other+单数名词=最高级+单数名词。
Listen and complete the sentences.
1b
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.
地理事实
Listen again and repeat.
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!
“the+序数词+最高级+单数名词+in…”表示“是……中的第几……”
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.
Language points
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
Use the information in 1b to make conversations.
1c
Qomolangma.
What is the highest mountain in the world
Mike is from the USA,he wants to know a lot more about China.
Listen to the conversation between him and his classmates. Finish 2a/2b.Pay attention to these numbers and try to read them.
6,300
5,000
5,464
300
six thousand three hundred
five thousand four hundred and sixty-four
five thoudsand
three hundred
New drills
___ 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, but it is the biggest country in Asia.
6,300 5,000 5,464 300
4
2
1
3
Listen and number the facts [1-4] in the order you hear them.
2a
长江
___ 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, but it is the biggest country in Asia.
6,300 5,000 5,464 300
4
2
1
3
6,300
5,464
5,000
300
a lot和much可修饰比较级。
as...as...和...一样（同级比较）
Listen again and fill in the blanks in 2a with the numbers in the box.
2b
Language points
3. China has the biggest population in the world.
① population n. 人口；人口数量。是集体名词，在句中作主语时，谓语动词用单数形式。population 之前若有分数修饰做主语时,谓语动词则可用复数形式.
中国人口有17亿多。
The population of China is over 1.7 billion.
这儿大约有五分之三的人口是农民。
About three fifths of the population here are farmers.
② 表示有多少人口时，用“have/has a population of + 数词”，或“the population of … is + 数词”。
China has a population of about 1.4 billion. = The population of China is about 1.4 billion.
③ 询问人口多少时，用“What is the population of … ”或“How large is the population of … ”。
What/How large is the population of Henan Province
④ 表示人口多少时，用 big/large 或 small 修饰，而不能用 many，much 或 few 等。
India has a large population.
类似的，表示 price（价格）高低，用 high 或 low，不能用 expensive 或 cheap；表示 temperature（温度）高低，用 high 或 low，不能用 hot 或 cold。
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.
Practice in pairs like this:
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.
Make conversations using the information in 2a.
2c
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
Post listening
1.How to read large numbers
2.长、宽、高、深的表达法
3.adj./adv.比较级和最高级的部分用法
Summay
https://www.21cnjy.com/help/help_extract.php中小学教育资源及组卷应用平台
Unit7 What’s the highest mountain in the world
(SectionA1a-2c)导学案
学生姓名 班级 序号
课题内容 Unit7 What’s the highest mountain in the world Section A 1a-2c
学习目标与核心素养 1.能掌握新单词和短语：重点掌握以下句型：1) ---What’s the highest mountain in the world ---How high is Qomolangma -It’s 8,844.43 meters high. It’s higher than any other mountain.2) China has the biggest population in the world.It is a lot bigger than the population of the US.2.学会用形容词比较等级来比较身边事物。 学会描述物体的长度，高度，深度以及宽度。3.能够用英语表达hundred百, thousand千,million百万以上的数字，会读小数点及小数点后面的数字。
学习重点 掌握本课时中出现的生词和基本句型。
学习难点 谈论地理和自然现象，学会对事实和数字的比较，提高听说能力。
【预习】
1. 预习单词及短语
1. 平方,正方形:_______(1)…平方公里/平方米 _______ (2) 天安门广场____________
2. 米 (cn):________ 3. desert n. 沙漠____ 易混词 dessert [di'z :t] (n.)甜点
4. deep (adj). 深的 比较级 _________最高级 _______(adv.) 深深地，强烈地 _______
5.( un.)人口(数量), (cn.)全体居民 ________ 6. n. 旅行，观光 v. 旅行 ________
7. Asia(n.)亚洲( adj.) 亚洲人的，亚洲的亚洲______pl. _____一个亚洲国家 ___________
8.最高的山 ______________ 9. 最深的盐湖 ________________
10. 最大的沙漠 _______________ 11.九百六十万平方公里
12..……的人口________________________
2. 试着用英语写下下列数字。
(1)9，600，000____________________________________________________
(2)6,671 ___________________________________________________
(3)8,844,43 ___________________________________________________
【合作探究】
一、学习任务：听说训练，在语言操练中掌握本节课单词句型。
Task 1听录音，完成1b。
Task 2 听第二遍录音，并跟读。
Task 3 练习对话。完成教材1c的任务。
Task4听录音，完成2a。
Task 5 朗读2b中的句子，再听一遍录音，完成2b。
Task6 再听一遍录音，并填空。
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 ________countries in the world It’s over 5000 years old.
Mike: Yes, I did. It’s much _____ than my country—in fact, the United States is one of __________ countries in the world. It’s not even 300 years old.
Boy: And China has _________ population, too. It’s a lot _____ 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 _________ country _______. We also have some famous rivers. The Yangtze River is __________ river in Asia. It’s about 6300 kilometers long.
Mike: Wow! I didn’t know that. I thought the Yellow River was ________.
Boy: No, the Yellow River is 5464 kilometers long. But both rivers are very important to China.
Task7 用2a和2b中的信息，完成2c。小组展示。
二、知识点：
1. the highest mountain in the world :世界最高峰
= higher than any other mountain. 比任何一座山都高:
(1)the +最高级+单数名词=any other +单数名词
eg H e is taller than any other boy in his class.= H e is the tallest boy in his class.
(2)the other+可数名词复数”或the others互换
(3)在同一个范围内进行比较: 用“than any other+可数名词单数”
不是在同一个范围内进行比较:则用“than any+可数名词单数”。
E.g Mr.Li is taller than any student in his class.李老师比他班上任何一个学生都高。
2.数字读法规则探究:
（1）十位和个位之间用“-”连接 。如twenty-one.
（2）百位和十位之间用_____连接，如：321__________________.
（3）从右往左数，三位一组，逗号隔开，依次是_______（千）______（百万） _________（十亿）
3.用来问物体高度、长度、深度、宽度等常用句型有：
A.How high/tall/long/wide/deep…+ is +主语 It’s + 数量 + high/tall/long/wide/deep.
① ----How high is the building --It’s about 100 meters tall.
② ----How tall is the bridge --More than 15 meters tall.
③ ----How long is the bridge --About 300 meters long.
④ ----How wide is the river --It’s about 1kilometer wide.
⑤ ----How deep is the well(水井) --It’s about 20 meters deep.
B.有部分形容词有名词形式，如：long—length,high---height,wide---width
① ----What’s the length of the bridge --It’s 200 meters
② The height of Mount Tai is 1,532 meters.
③ ----What’s the width of the river --About 120 meters.
4 China has the biggest population in the world..It is a lot bigger than the population of the US.
population 不可数名词，人口，人口数量
①“询问某地人口的多少”要用疑问词“what”，而不能用“how many”，“how much”。
What’s the population of China
中国有多少人口？/中国的人口是多少？
② population指“人口总数”，作主语时，谓语动词要用单数形式。
The population of our city is about 3 million.
我们城市的人口约有三百万。
③ population前有修饰词时,如分数，百分数表示整体的一部分人，谓语动词一般用复数。
Two thirds of the population of China are farmers.
中国有三分之二的人口是农民。
④ 指代population的代词要用that The population of China is larger than that of America.
⑤ 表示人口多或少，要用large/big/great或small
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