1、Section C,Unit 1 The Changing World,Topic 2 The population in developing countries is growing faster.,8,88,888,8,888,88,888,888,888,8,888,888,88,888,888,888,888,888,8,888,888,888,88,888,888,888,888,888,888,888,Tongue twister,The population in developing countries is _ than that in developed countrie
2、s. Which country has the largest population? Whats the population of China?,larger,1a 1. Before you read the passage, discuss the questions with your partner.,1) Why does China carry out the one-child policy? 2) What social problems do you think Chinas large population has caused?,1a Read and unders
3、tand. 2. Write the title of the passage.,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 Rea
4、d 1a again and complete the table.,1.3 billion,job,energy,water,cities,traffic,worse,the one-child policy,living space,Read Paragraph 1 and fill in the blanks.,Asia has a population of _. Thats to say, almost _ of the people in the world live in Asia now.,more than 3 billion,half,Paragraph 1 The wor
5、lds and Asias population.,3 billion 6.8 billion12 (half) 50 percent (50%),Almost half of the people in the world live in Asia.,1.3 billion6.8 billion1 5 20 percent (20%),About one fifth of the people in the world live in China.,one,What social problems has it caused,Paragraph 2 The problems caused b
6、y large population.,fifth,分子基，分母序。 分子1，分母加 s 。,举例如下 二分之一 a/one half 三分之一 one - third 四分之一 one quarter 四分之三 three - fourths three quarters 五分之二 two - fifths 十分之九 nine - tenths,注意：,二分之一不能说 a(one) second 而要说 a(one) half。 四分之一和四分之三可以说 a(one) fourth 和 three-fourths， 但常用 a quarter 和 three quarters,Because
7、 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 China to supply _ and _ to satisfy peoples daily needs.,
8、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,The one-child policy, Every couple can have only one child.,So far, the one-child polic
9、y has worked well in controlling Chinas population.,We still have a long way to go.,Paragraph 3 The measures to deal with the problems.,大约五分之一的人 更少的生活空间 同时 整个国家(民族) be known as work well in doing 一条很长的路要走,about one fifth of the people less living space at the same time the whole nation 已知的，知名的 在某方面起
10、作用 a long way to go,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 worlds population _ faster and faster. It has _ one of the biggest social problems today. China _ the largest population in the world. There are
11、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.,2 Complete the following passage with the correct forms of the given words or phrases.
12、,find,grows/ is growing,become,carried out,reached,grow reach have find work become face carry out,has,worked,faces,新生婴儿 成为最严重的问题之一 达到世界人口的百分之 面临严峻的人口问题 解决 处理问题,newborn babies one of the biggest social problems reach percent of the worlds population face a serious population problem deal with solve
13、the problem,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. The energy and water is less and less. What
14、 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.,One possible version:,China has the largest population in the world. It has caused many problems. Everyone should do something
15、to solve them. First, 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.
16、Wed 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. _ of the students are boys in our school. A. Two third B. Two threes C. Two thirds D.
17、Second three 2. The one-child policy has _ controlling Chinas population. A. been good at B. done well in C. taken care of D. worked well in,C,D,Exercises,3. Edison is known _ a great inventor. A. for B. as C. in D. on 4 ._ your help, I made great progress in math. A. Thanks for B. Thanks to C. Than
18、k to D. Thank for,B,B,Exercises,summary,We learn:,1. Read the fractions in English. 2. Talk about population problems.,We can:,1. Some words: social, supply, natural, worse, government, paragraph, opportunity, newborn, percent, offer 2. Some phrases: half of, one fifth, because of, satisfy peoples d
19、aily 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.,Homework,2. Write the composition in 3b.,1. Read 1a aloud.,3. Finish Section C in your workbook.,4. Preview Section D.,Thank you.,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 .,
