(共23张PPT)
Unit7
What's the highest mountain in the world
SectionA 1a-1c
What’s it
What’s the highest mountain in the world
Qomolangma.
/ t m lɑ m /
It’s a mountain.
Let’s guess.
What’s it
What’s the longest river in the world
The Nile.
/na /
It’s a river.
Let’s guess.
It’s a lake. Salt lake.
What’s the deepest lake in the world
The Caspian Sea.
/ k sp n/
What’s it
Let’s guess.
Let’s guess.
What’s it
What’s the biggest desert in the world
The Sahara.
/s hɑ r /
It’s a desert / dez t/.
The expression of numbers
4
21
128
5,820
Read these numbers
four
twenty-one
one hundred and twenty- eight
five thousand eight hundred and twenty
How about these
886,510
2,019
7,725,385
84.14
111 ,111 ,111
要读一组长数字，可以先把这组数字分3个数字一组用逗号隔开
111111111
million
（百万）
thousand
（千）
英语里没有万，十万的表达
一万：ten thousand
十万： one hundred thousand
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
summary
把长数字分为3个数字一组，用逗号隔开，从右到左，
把第一个逗号看作thousand，第二个逗号看作million,第三个逗号是billion
1
2
”and“ 只有十位数和百位数之间出现
3
小数点后面的数字按单个读
百位数没有数字时，thousand 和 十位数之间，and不省略
84 . 14 小数点后面读one four
不整读
Have a test
45567
forty-five thousand five hundred and sixty-seven
7899256
67 . 23
sixty-seven point two three
45 , 567
7 , 899 , 256
seven million eight hundred and ninety-nine thousand two hundred and fifty-six
珠穆朗玛峰是世界海拔最高的山峰，高度为8844.43米。
Qomolangma
eight thousand eight hundred and forty-four point four three
Which is the highest mountain in the world
the Nile
尼罗河长6671千米，是世界上最长的河流。
six thousand six hundred and seventy-one
Which is the longest river in the world
the Caspian Sea
里海虽称海，却是一个巨大的内陆咸水湖，深1025米，是世界上最大的湖泊
one thousand and twenty-five
Which is the biggest lake in the world
the Sahara
形成于约250万年前，世界上最大的沙质荒漠，约9,600,000平方千米
nine million six hundred thousand
Which is the bigest desert in the world
Match the facts you know.
1a
Qomolangma
the Nile
the Caspian Sea
the Sahara
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
square在此处作形容词，意为
“平方”，用于数字后表示面积。
square还可作名词，意为“正方形；广场”。
in size 在尺寸上；在大小方面
与in size结构类似的还有：
in height 在高度上
in weight 在重量上
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。
听关键词，可以忽略听不懂的结构。
Listen again and match the facts.
Qomolangma
the Sahara
the Caspian Sea
the Nile
the highest mountain in the world
the biggest desert in the world
the deepest salt lake in the world
the longest river in the world
Hi, Patrick! What are you doing these days
Oh, I am traveling around the world.
How exciting! What is the highest mountain in the world
It’s Qomolangma.
How high is Qomolangma
It's 8,844.43 meters high.
Use the information in 1b to make conversations.
1c
Qomolangma
the Nile
the Caspian Sea
the Sahara
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.
比较级 + than any other + 可数名词单数
Point
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。
【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
