3 、百、千、万 百 hundred 100 one hundred

200 two hundred

以此类推 ····

千 thousand 1 000 one thousand

2 000 two thousand·········

英语里没有“万”这一单位，万也用 thousand

表示。如： 10 000 ten thousand 一万 20 000

twenty thousand 两万 ·····

4 、十万、百万十万的说法是： 100.000

a (one) hundred thousand

200.000

two hundred thousand

million 百万 a (one) million 1,000,000

two million 2,000,000

········ 以此类推 ······

8,000,000 eight million

练一练

345

1001

18,657,421

three hundred and forty-five

one thousand (and) one

eighteen million, six hundred

and fifty-seven thousand, four

hundred and twenty-one

1.The project lasted 5 years and cost 2 billion dollars.

2. The Chinese have been making paper for two thousand years.

3. One thousand pounds is a lot of money.

表示确定数量时 用基数词 + hundred ， thousand ， million ， billion

1.The project lasted 5 years and cost 2 billion dollars.

2. The Chinese have been making paper for two thousand years.

3. One thousand pounds is a lot of money.

表示确定数量时 用基数词 + hundred ， thousand ， million ， billion

多位基数词读法

457

890

608

389 three hundred and eighty-nine

four hundred and fifty-seven

eight hundred and ninety

six hundred and eight

11 ）） 101~999101~999 的三位数由的三位数由“百位数＋“百位数＋ and+and+ 两位两位数组成”。数组成”。 如：如： 325—three hundred 325—three hundred and twenty-and twenty-fivefive 102 one hundred and two

635 six hundred and thirty-five

2) 三位数以上的数，从个位往前数，每三位数加一个逗号，从后往前数的第一个逗号代表thousand, 第二个逗号代表 million, 第三个逗号是 billion ，注意这几个词不能用复数形式，后也不能加 and 。例如：

2,648

two thousand, six hundred and forty-eight

16,250,064

sixteen million, two hundred and fifty thousand, sixty-four

确切数目与不确切数目的表达：hundred, thousand, million, billion 等前面有基数词，表示确切数目时，用单数，后直接接复数名词；如：three hundred books

one hundred people

five thousand students

seven million starts

表示不确切数目时，这类词后加 -s 且与 of

连 用。如： hundreds of people

thousands of students

millions of birds

billions of lions

注意：这类短语中，名词前如有定冠词、指 示代词或形容词性物主代词时，可加 of, 但 表示的是范围。如： two hundred of the

workers 工人中的二百（人）

square n. 平方70 square kilometers in size面积 120 平方千米

meter n. 米1.62 meters tall /high1.62 米高

ancient adj. 古代的

wide adj. 宽的；宽阔的3 meters long / wide/ deep 3 米长 / 宽 / 深

deep adj. 深的 desert n. 沙漠

population n. 人口

Asia n. 亚洲

tour v. n. 旅行 tourist n. 旅行者

wall n. 墙 amazing adj. 令人大为惊奇的

Do you know these places of interest? 游览胜地

Qomolangma

Qomolangma runs along the border 边界 between China and Nepal. It is covered with snow all the year round 终年被雪覆盖 . It’s 8844.43 meters high, the highest in the world. It’s 26 kilometers long.

The Nile is the longest river in the world. It’s more than 6600 kilometers long. It runs through 9 countries, it’s one of the largest river flows 河流 through the international states in the world and runs into the Mediterranean Sea( 地中海 ) in the end 最终 .

The Nile

The Caspian Sea

The Caspian Sea is the biggest lake in the world. It lies in the border 边界 between Asia and Europe.

The Sahara is the biggest desert in the world. It is located in 坐落于 the northern Africa, climate conditions 气候条件 are very bad, is one of the earth‘s most not suitable 适合 for biological survival 生物生存 .

The Sahara

The Yangtze River is the third longest river in the world. It’s 6211.31 kilometers long. The Yangtze River Basin 流域 , east-west width 宽度 of 3219 kilometers, about 966 kilometers wide north-south, passing through 11 provinces 省 . It runs into the East Sea in Shanghai finally.

The Yangtze River

Which is the highest mountain in the world?Which is the longest river in Asia?... …

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

Practice in pairs like this:

A: Which is the … in the …?

B: …

A: How high is Qomolangma?

B: It’s 8,844 meters high.

The biggest desert in the world

is about 8,000,000 square kilometers in size.

How big is the Sahara?

It’s about 8,000,000 square kilometers 平方米 in size 面积 .

Yesterday, we learned some important geographical 地理的 facts 事实 .

I hope you all still remember them.

I’m going to 准备 test 检测 you now

by asking a few questions 通过问一些问题 .

Are you good at geography 地理 ?

1.Which is the longest river in the world?

2.What’s the highest mountain in the world?

3.Which is the biggest desert in the world?

4. Which is the deepest salt lake in the world?

The Nile is the longest river in the world.

The Amazon is the second longest in the world.

Qomolangma is higher than any other mountain= the highest mountain in the world.

The Sahara is the biggest desert in the world.

The Caspian Sea is the deepest of all the salt lakes.

1.How big is China?

It’s about _________ square kilometers in size.

2. How high is Qomolangma ?

It’s about ___________ meters high.

3. How long is the Nile ?

It’s __________ kilometers long.

4. How deep is the Caspian Sea?

It’s ____________meters deep.

5. How big is the Sahara?

It’s about ________ square kilometers in size.

9,600,000

8,844.43

6,671

1,025

9,600,000

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

2a 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, but it is the biggest country in Asia.

4

2

1

3

2b 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, but it is the biggest country in Asia.

6,3005,464

5,000300

Can you tell me a bit more about China?

1. China is ________________( 世界上最古老的国家之一） .

2. It is _________________________ （ 5000 多年）

3.It is _________________( 比…悠久的多） than America.

4.China has ____________________________ ( 最多人口 ).

It’s _________________________________ ( 人口比美国多得多）

5.China is about ____________________ ( 和美国面积一样大 ).

It’s _________________________ ( 亚洲最大的国家）

6.The Yangtze River is ___________________( 亚洲最长的河流）

It’s about 6, 300 _______________ ( 千米长）

The Yellow River is 5,464 kilometers long. Both rivers ________________ ( 对中国很重要） .

one of the oldest countries in the world

over 5000 years old

much older

the biggest populationa lot bigger than the population of the United States

the same size as the USthe biggest country in Asia

the longest river in Asia

kilometers long

are very important to China

Who can tell me what the United States is ?

1.The United States is one of the youngest countries in the world. ( 世界上最年轻的国家之一）

it’s not even 300 years old.

2. It’s a lot smaller than the population of China.

It has smaller population than China.

3.It is about the same size as China.

2c Make conversations using the information in 2a.

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.

B: Wow! That’s long!

2d Read the conversation and answer the questions:

1. Which is the biggest man-made objects 人造物体 in the world ？

2. Which is the most famous part 最有名的部分

of the Ming Great Wall?

The Great Wall.

Badaling part of the wall.

feel free to do sth. 只管按意愿去做

on today’s Great Wall Tour 在今天的长城游览中

the most popular question 最普遍的问题

the parts from the Ming Dynasty 来自明朝的部分

the ancient emperors 古代的皇帝

the main reason 主要理由

as far as I know 据我所知

to protect their part of the country 为保护他们国家的地方

the man-made objects 人造物体

A: To memorize the important phrases

and sentences.

B: To make some dialogues about asking

the size of objects.