仁爱科普版九年级上册Unit 1 The Changing World Topic 2Section B 课件(共19张PPT，无音频)

(共19张PPT)
Greeting and revision
Review how to read the numbers .
Review the new words in this section.
one hundred and fifty yuan
thousands of people
two point two six (2.26) meters tall
two thousand and eight Olympic Games
1 , 0 0 0 , 0 0 0 , 0 0 0
billion
million
thousand
543.7
1 562
6 004 001
7 198 764 502
973
3 980
98 721
768 540
1 , 0 0 0 , 0 0 0 , 0 0 0
billion
million
thousand
2 346 780
82 346 580
405 000 000
22 426 658 896
1 , 0 0 0 , 0 0 0 , 0 0 0
billon
million
thousand
6800
80
80
80
The population is increasing by 80 million every year.
= The world has a population of 6.8 billion.
What a large population!
1b Listen to 1a and match the information.
1. the world 2. China 3. India 4. the USA
A. 309 million B. 6.8 billion C. 1.3 billion D. 1.1 billion
Make similar conversations after the example.
Example:
A.: What’s the population of the world
B: It’s about 6.8 billion.
1. the world 2. China 3. India 4. the USA
A. 309 million B. 6.8 billion C. 1.3 billion D. 1.1 billion
The supermarket is very crowded.
So it is.
So +主语+ be/情态动词/助动词
Lucy dances very well.
She has cleaned the room.
So she does.
So she has.
So it is.
确实如此。
1c Read 1a and fill in the blanks.
The world has a population of 6.8 billion and it is increasing by __________ every year. _______ has the largest population. It has already reached __________ and India is _________ with 1.1 billion. The population in developing countries is ______ and is growing ________ than that in developed countries. Luckily, our country has carried out the ___________ policy to control the population.
80 million
China
1.3 billion
second
larger
faster
one-child
Pay attention to the phrases
increase by, developing countries, developed countries, carry out, the one-child policy
Practise reading the dialogue in 1a,the act out the dialogue.
(Kangkang is reading a report on population in the newspaper.)
K：What a large population !
M:What
K:Look,it says the world … 6.8
billion. And it
… 80 million every year.
M：Mmm,that’s…Which…largest…
K：China … .It has …,
and India …with ….
M:What’s….
K:309…
M:Oh,….It shows that ……is larger than that …
K:Yes.What’s more,…is growing faster.
M:So it is.The population problem…serious…
K:Lukily,China…to control …
Choose the best answer.
1. — ______ is the population of Russia
— 143 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
3. — Jenny always helps others.
— ______.
A. So is she B. So she is
C. So does she D. So she does
4. The population of China is ______ than that of
Japan.
A. larger B. more
C. fewer D. less
C
D
D
A
1. Read numbers in English.
2. Talk about population problems.
3.Answer the questions in 3.
1. Some phrases:
increase by, developing countries, developed
countries, carry out, the one-child policy
3. Some sentences:
What a large population!
The world has a population of 6.8 billion.
So it is.
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。
e.g. The population of China is very large. 中国人口众多。
The population in this area is becoming smaller and
smaller. 这个地区的人口越来越少。
强调人口的具体分布或构成 (作复数）
BACK
population
集合名词 某地整体人口的数量(作单数）
通常用large/ big/ small 来修饰。
increase by + 数字 / 倍数 / 百分数 增加了……
e.g. The price of the house has increased
by three times.
increase to +数字 增加到……
e.g. The price of the house has increased
to 500 000.
250
250
250
250
250
250
500
BACK