Unit 1 Topic 2 Section C课件（仁爱科普版九年级上册）

(共20张PPT)
Unit 1 The Changing World
Topic 2 The population in developing countries is growing faster.
Section C
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Tongue twister
1. Some words:
social, supply, natural, worse, government,
paragraph, opportunity, newborn, percent, offer
2. Some phrases:
half of, one fifth, because of, satisfy people’s daily
needs, so far, take measures to do, be known as, thanks to
3. Some sentences:
We still have a long way to go.
1a Read and understand.
1.Before you read the passage, discuss the question with your partner.
What social problems do you think China’s large population caused
It is difficult to find jobs.
We are short of water.
The street is too crowded.
The street is too heavy.
In 2014, the world’s population was about 7.2 billion. More than four billion people live in Asia now. That's more than half of the world’s population.
____________________
Population Problems
2.Write the title of the passage
China has a very large population, and about one fifth of the people in the world live in China. Because of the large population, there was less living space for each family. And what was worse, it was difficult for lots of people to find jobs. At the same time, the large population caused many other difficulties for the whole nation. For example, it was hard for China to supply water and enerey to satisfy people’s daily needs. Most cities are more crowded and the traffic is much heavier,too. The large population has been a serious problem.
So far, our government has taken many measures to solve the problem. And they worked well. Thanks to the efforts of our government, China is developing quickly and people’s living conditions are improving rapidly. The natural environment is becoming better and better. However, we still have a long way to go.
1.supply n.供应量，供给量，储备
e.g. The water supply is not enough. 水的供给不足。
v.（尤其大量）供应，供给，提供，
常用句型：supply sth. to sb./supply sb. with sth.
eg. Our country supplies free textbooks to children.=Our country supplies children with free textbooks.我国给孩子们提供免费的教科书。
2. thanks to sth/sb 多亏了……，由于……的帮助，
相当于because of ...或with the help of ...，在此短语中，to是一个介词，后接名词或代词。
e.g.Thanks to the doctor, I am well again.
多亏这位医生，我身体又康复了。
thanks for 为……感谢。强调感谢的原因，后跟名词、代词、动词-ing形式。
e.g.Thanks for your invitation. 谢谢你的邀请。
past
now
3. so far
So far, I have read five English novels .
1b Read 1a and match the main idea with each paragraph.
1. _____ Paragraph 1 A. the better situation in China now
2. _____ Paragraph 2 B. the world’s and Asia’s population
3. _____ Paragraph 3 C. the problems caused by large
population
B
C
A
1c Read 1a again and complete the table
Population of China ____________________
Social problem less ______________
fewer _______ opportunities
less _______ and ______
crowded ________
heavy _________
________ natural environments
Situation now
1.36 billion
job
energy
water
cities
traffic
worse
Living conditions .
The natural environment ________
living space
are improving rapidly
is becoming better and better.
Every minute, about 261 babies are born in the world. That means people have to _____ food for about 375 840 newborn babies every day. The world’s population _______________ very fast. It has _______ one of the biggest social problems today.
China ______ the largest population in the world. There are about 1.36 billion people in China. It has ________ 20 percent of the world’s population. China has ____________ some policies to solve the population, and these policies have _______ well. But China still _______ a serious population problem.
find
grows/ is growing
become
carried out
reached
grow reach have find work become face carry out
has
worked
faces
2. Complete the following passage with the correct forms of the given words or phrases.
Is the large population
GOOD or BAD
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
3a Work in groups and search for the information about the following questions. Then share your idea with your group memebers.
China has the largest population in the world. It has caused many problems. Everyone should do something to solve them.
First, the government should take many meaures to solve the population problem, and practice the reform and opening-up to develop our economy. 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.
3b Write a short passage of three paragraphs based on 3a.
根据汉语提示完成句子：
1.My friend Jenny has ____ （主动提出）to help me with my English.
2.China ____ ____ _____ （已采取措施）to control the population.
3.Yao Ming plays basketball well, so he ___ ___ ___（被熟知）one of the most famous basketball stars.
4.____ ____ （三分之二）of the students in our class are boys.
offered
has
taken
measures
is
known as
Two
thirds
1. Read the fractions in English.
2. Talk about population problems.
1. Some words:
social, supply, natural, worse, government,
paragraph, opportunity, newborn, percent, offer
2. Some phrases:
half of, one fifth, because of, satisfy people’s daily
needs, so far, take measures to do, be known as,
work well in, thanks to
3. Some sentences:
We still have a long way to go.
We learn:
We can:
1. Read 1a aloud.
2. Write the composition in 3b.
3. Finish Section C in your workbook.
4. Preview Section D.