Unit 1 The Changing World Topic 2 Section C 课件(共21张PPT) 2024-2025学年（仁爱科普版）英语九年级上册

(共21张PPT)
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The USA’s population is ________ than Russia.
Which country has the largest population
What’s the population of China
larger
1a 1. Before you read the passage, discuss the
question with your partner.
What social problems do you think large population caused
1a Read and understand.
2. Write the title of the passage.
1b Read 1a and match the main idea with each paragraph.
1. _____ Paragraph 1 A. better situation now
2. _____ Paragraph 2 B. two sides of large population
3. _____ Paragraph 3 C. the problems caused by large
population
Population Problems
B
A
C
1c Read 1a again and complete the table.
Large population
social problem less ______________
fewer _______ opportunities
less _______ and ______
More crowded ________
heavier _________
situation now _______
job
water
energy
cities
traffic
Living conditions are improving rapidly.
living space
The natural environment is becoming better and better.
Some countries have large populations.This has been ___________ for them. The large populations have helped them ______,but have _____ them some serious problems as well.
Paragraph 1
The world’s and Asia’s population.
good and bad
develop
caused
Because of the large population,
there was __________________ for each family.
less living space
Because of the large population,
it was difficult for lots of people ______________.
to find jobs
Because of the large population, it was hard for China to supply _______ and ______ to satisfy people’s daily needs.
water energy
Because of the large population,
most cities are ______________, and the traffic is much __________.
more crowded
heavier
1a Read and understand.
2 Complete the following passage with the correct forms
of the given words or phrases.
lose choice enough make space good
space
Sometimes, it is bad for countries to have large
population.
First, some people are short of living __________
because of large population. They have no ________ but to
live with their relativesor friends. Second, there are not
_________ job opportunities for people to choose from.
Some of them can’t get jobs, and ome others may _______
their jobs. Third, the streets in the
cities get dirtier for littering.
Luckily, a number of countries have ________ great
efforts to deal with such kinds of problems.
People’s living conditions are
getting _______ and the natural environment is more
beautiful than before.
enough
lose
made
better
choices
3a Work in groups and search for the information
about the following questions. Then share your
idea with your group members.
1. How do you think we can get more living space
2. What should the government do to offer more
job opportunities
3. Water and energy are less and less. What
should we do to deal with it
4. The traffic in cities is much heavier than before.
How can we solve the problem
3b Write a short passage of three paragraphs based on 3a.
Some countries have very large populations in the world. It has caused many problems. Everyone should do something to solve them.
First, the government should take many measures to solve the problem. Only in this way can we get more jobs and improve our living conditions.
Second, the energy and water is becoming less and less. We’d better save them as much as possible, and try to find more new energy. In order to solve the problem of heavy traffic, we call on everyone to take a bus or walk as often as possible.
Choose the best answer.
1. Recting texts every day has _____ learning English.
A. been good at B. done well in
C. taken care of D. worked well in
2. Edison is known _____ a great inventor.
A. for B. as C. in D. on
3 ._____ your help, I made great progress in math.
A. Thanks for B. Thanks to
C. Thank to D. Thank for
D
B
B
1. Read the fractions in English.
2. Talk about population problems.
1. Some words:
social, supply, natural, worse, government,
paragraph, opportunity, offer
2. Some phrases:
half of, one fifth, because of, satisfy people’s daily
needs, so far, take measures to do, work well in,
thanks to
3. Some sentences:
However, we still have a long way to go.
Homework
2. Write the composition
in 3b.
1. Read 1a aloud.
3. Finish Section C in
your workbook.
4. Preview Section D.
one sixth
one ninth
one twentieth
five sixths
two ninths
seven twentieths
ATTENTION
one / a half
a quarter
three quarters
three and a half
past
now
so far
So far, I have read five English novels .