What do these pictures tell you?They tell us that we are facing overpopulation The earth Trái đất Nguồn tài nguyên... The population of the world has been increasing faster and faster.
Trang 2WARM UP
Look at this picture and answer questions
Trang 31 Is this a small or a big family ?
Trang 4What do these pictures tell you?
They tell us that we are facing overpopulation
The earth (Trái đất)
Nguồn tài nguyên
Trang 7increase (v) tăng ≠ (to) decrease: giảm
raise animals (v) : nuôi động vật
family planning (n): kế hoạch hóa gia đình
400 200
Trang 8 The population of the world has been increasing faster and faster In 10,000 B.C., there were probably only 10 million people In A.D 1, there were 300 million It took 1,750 years for the world population to reach 625 million In 1850, only one hundred years later, the population reached the figure of 1,300 million In 1950, the figure had more than doubled to reach 2,510 million In 1985, only 35 years later, there were 4,760 million people In 2000, the world’s population was about 6.6 billion, and by 2015 it is expected to be over 7
billion
Does the Earth have enough resources to support this many people? Different scientists give different answers to this
question Some say that there are enough resources to
support 8 billion people Others say that we must limit
population growth because our resources are limited Only
10 percent of the earth’s land can be used for farming and another 20 percent for raising animals There is a limit to the water we can use There are also limits to the amounts of
petroleum, iron, silver, gold, and other metals
Trang 9The words in the box all appear in the passage Fill in
each blank with a suitable word
resources
3.The number of injuries from automobile accidents every year
4.Some countries are poor because they have very few natural _
5.These are all : 1, 75, 293
6 There is a(n) _of 20 minutes for this short test Students must turn in their papers at the end of 20th minute
Trang 10LET’S PLAY A GAME
Trang 11Dog
Frog Whale
Team A Team B
Trang 1220 points
Trang 132 How many people is the world expected
to have by the year 2015?
By the year 2015, the population of the
world is expected to be over 7 billion
( line 8)
10p
Trang 143 Can the Earth have enough resources to support its population?
Some scientists say it can, but others say it can’t
(line 10,11,12).
10p
Trang 151.a What was the population of the world in 10,000 B.C., and in1750,
The population of the world
+ in 10,000 B.C.was 10 million + in 1750 was 625 million
( line 2,3,4)
10p
Trang 161.b What was the population of the world
in 1850, and in 1950 ?
The population of the world
+ in 1850 was 1,300 million + in 1950 was 2,510 million
( line 4,5,6)
20p
Trang 171.c What was the population of the world
in 1985, and 2000?
The population of the world
+ in 1985 was 4,760 million + in 2000 was about 6.6 billion ( line 6,7,8)
10p
Trang 202 In 1985, there were 4,750 million people.
3 Some scientists say that there are enough resources to support 8 billion people.
Trang 211,338,612,968 people 1,166,079,217 people
307,212,123 people
198,739,269 people 240,271,522 people
The five world largest countries in population are:
If you want to know more about the world population,
Find out 5 world largest countries in population
Trang 22HOMEWORK :
Write five reasons why we shouldn’t have many children.