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Unit1 The Changing World

Topic2 Which country has the largest population?

one hundred and fifty yuan

two thousand and eight Olympic Games

millions of stars

since( 自从） 650 million years ago

about one billion (1,000,000,000 ) years old

two point two six (2.26) meters tall

1,000,000,000

one billion

1.34

one point three four

100

one hundred

1,000

one thousand

1,000,000

one million

十亿

点

543.7

five hundred and forty-three point seven

768

seven hundred and sixty-eight

6 004 001

six million, four thousand and one

7 198 764 502

seven billion, one hundred and ninety-eight million, seven hundred and sixty-four thousand, five hundred and two

1.34

one point three four

100

one hundred

1,000

one thousand

1,000,000

one million

1,000,000,000

one billion

（录音）

1.34

one point three four

100

one hundred

1,000

one thousand

1,000,000

one million

1,000,000,000

one billion

543

five hundred and forty-three

3 980

three thousand , nine hundred and eighty

98 721

ninety-eight thousand , seven hundred and twenty-one

768 540

seven hundred and sixty-eight thousand , five hundred and forty

1.34

one point three four

100

one hundred

1,000

one thousand

1,000,000

one million

1,000,000,000

one billion

5 555 555 555

five billion, five hundred and fifty-five million, five hundred and fifty-five thousand, five hundred and fifty-five

2 346 780

two million, three hundred and forty-six thousand, seven hundred and eighty

405 000 000

forty hundred and five million

There are about 1.3 billion people in China.

= China has a population of 1.3 billion.

What’s the population of China?

A: What’s the population of China?

B: It’s about 1.3 billion.

Pair work

Talk about the chart

6, 500,000,000

What a large population!

6.5 billion

The population is increasing by 80 million every year.

808080

1. Which countries have larger popula-tion, developing countries or develop-ed countries?

Developing countries.

2. What has China already done to control the population?

China has carried out the one-child policy.

1a Listen read and answer

A ： What a large population ! The world … 6.5 billion.

… 80 million every year.

B ： Which country …?

A ： China … with…,

and India …with ….

B ：… the U.S.A.?

A ： 296 million.

B ： It shows … developing countries … developed countries.

A ：… grow faster …

B ： So it is. The population problem … developing countries

A ： China … carry out … control the population.

1. 1.3 billion

2. __________

3. __________

4. __________

5. __________

6. __________

6 575(miles)

32 million

210 million

326 (yuan)

8 844.43(meters)

CanadaMount Qomolangma

dinosaur （录音）

Sum up

• How to read the numbers in English• What’s the population of …?• increase by • carry out

Exercises1.— ____ is the population of Indonesia?

—223 million.

A. How much B. How many

C. What D. How

2.There are ______ students in our school.

A. three thousands

B. three thousands of

C. three thousand of

D. three thousand

C

D

1. 完成同步练习册 Section B 。2.Talk about the topics

a. Why does China carry out the

one-child policy?

b. What are the population problems?

Homework

population

(large \ small)

集合名词 某地整体人口是多少 ( 作单数 )

强调具体成员 , 某地的部分人口 ( 作复数）

(e.g)The population of this city is nearly 300 000. 这个城市的人口将近三十万。

(e.g) 80% of the population in China are farmers. 中国百分之八十的人口是农民。

back

increase by + 倍数或百分数 (e.g.)The cost of living has increased by three times.

increase to + 具体数字 (e.g.)The price of the house has increased to 500 000.

300300300300

350

150500

back

carry out 实行 , 进行 , 执行(e.g.) We will carry out a new

plan to improve our English.

carry + 代词 +out

(e.g.) It’s easy to carry it out.

back

1. China had a population of 1.3 billion in 2005. 2. It’s about 6 575 miles from Beijing to Toronto.3. Mount Qomolangma is 8 844.43 meters high.

4. The population of Canada was about 32 million

in 2005.

5. The dinosaur lived 210 million years ago.

6. The coat in the shop costs 326 yuan.

back

Mount Qomolangma

dinosaur

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