Unit 1 Topic 2 Section C 课件 2.ppt

1、Unit 1 The Changing World,Topic 2 The population in developing countries is growing faster. Section C 课件 2,Pre-reading,1 0 0 0 0 0 0 0 0 0,First, try to separate the number in groups of three from right to left. Then read it in order from billion to million and thousand.,How to read numbers?,1 , 0 0

2、 0 , 0 0 0 , 0 0 0,billion,million,thousand,1. China has the largest population. The population of China is 1.3 billion. Canada has the smallest population. The population of Canada is 34 million. 2. The population in developing countries is larger than that in developed countries.,Answers to 3 on p

3、age 12.,晚婚晚育，少生优生。,3. The large population may cause many problems, such as less living space, less energy and water. 4.Delayedmarriageanddelayedchildbearing,fewerand healthierbirths.,1) Why does China carry out the one-child policy? 2) What social problems do you think Chinas large population has c

4、aused?,Because the population of China is so large that it has caused many social problems. It has caused less living space, less job opportunities, less energy and water, more pollution and so on.,Another two questions on page 13.,While-reading,1a Read and understand. 2. Write the title of the pass

5、age.,1b Read 1a and match the main idea with each paragraph.,1. _ Paragraph 1 A. the measures to deal with the problems 2. _ Paragraph 2 B. the worlds and Asias population 3. _ Paragraph 3 C. the problems caused by large population,Population Problems,B,C,A,1c Read 1a again and complete the table.,1

6、.3 billion,job,energy,water,cities,traffic,worse,the one-child policy,living space,3 billion 6.8 billion12 (half),Almost half of the people in the world live in Asia.,50 percent (50%),1.3 billion6.8 billion1 5 20 percent (20%),About one fifth of the people in the world live in China.,one,Paragraph 2

7、 The problems caused by large population.,fifth,Because of the large population, there is _ for each family.,Read Paragraph 2 and fill in the blanks,less living space,Because of the large population, it is difficult for lots of people _.,to find jobs,Because of the large population, it is hard for C

8、hina to supply _ and _ to satisfy peoples daily needs.,energy water,Because of the large population, most cities are _ than before, and the traffic is much _.,more crowded,heavier,Because of the large population, natural environments are becoming _ _.,worse and worse, Every couple can have only one

9、child.,So far, the one-child policy has worked well in controlling Chinas population.,We still have a long way to go.,Paragraph 3 The measures to deal with the problems.,The one-child policy,Post-reading,Every minute, about 261 babies are born in the world. That means people have to _ food for about

10、 375 840 newborn babies every day. The worlds population _ faster and faster. It has _ one of the biggest social problems today.,Complete the following passage with the correct forms of the given words or phrases.,find,grows/ is growing,become,grow reach have find work become face carry out,China _

11、the largest population in the world. There are about 1.3 billion people in China. It has_ 20 percent of the worlds population. China has _ some policies to control the population, and these policies have _ well. But China still _ a serious population problem.,carried out,reached,has,worked,faces,Wor

12、k 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. The energy and water is less and less. What should we do to d

13、eal with it? 4. The traffic in cities is much heavier than before. How can we solve the problem?,Write a short passage of three paragraphs based on 3a.,One possible version:,China has the largest population in the world. It has caused many problems. Everyone should do something to solve them.,First,

14、 the government should keep the one-child policy to control the increasing population, 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. Wed better save them

15、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.,Summary,1. Read the fractions in English. 2. Talk about population problems.,1. Some words: social, supply, natural, worse, government, paragraph, opportunity, newborn, perc