Unit 1 The Changing World Topic 2 Section C 课件(共17张PPT)

(共17张PPT)
Unit 1 The Changing World
Topic 2 The population in developing countries is growing faster.
Section C
Language goals
By the end of the class, you will be able to
1.Master the following words ,phrases and sentences:
Words： narrow, communication, various, report, relative, telegram, rapidly, since, satisfy, medical, cellphone, fax, machine, rapid, progress, already, pleased
Phrases: in the 1960s, keep in touch with, far away, reform and opening-up, satisfy people’s needs, medical care, make progress, succeed in doing sth.
Sentences：I think it is important to remember the past, live in the present and dream about the future.
2. Talk about the changes in a place.
一篇关于…的报道
2.在报纸上
3.上面写到…
4.某地有…人口
5. 增长了…
增长到...
6. 达到
到达某地
7. 某地有多少人口
8.发达国家
发展中国家
10.的确如此。
11. 执行，实施
a report on/about---
in the newspaper
It says (that) + ---
has a population of…
increase by…
reach + 数字
Revision in class
reach +地方 = getto… = arrive in/at…
a developed country
carry out
increase to…
What’s the population of .. =How many people are there in…
developing country
so+主语+/be/情态动词/助动词
1a. Read and understand
1. Before you read the passage, discuss the questions with your partner.
2)What social problems do you think China’s large population has caused
1)Why did China carry out the one-child policy
Because China has the largest population in the world and has caused some social problems.
Because of the large population,there is less living space for each family, it is difficult for lots of people to find jobs, it is hard for China to supply water and energy to sastify people’s daily needs, most cities are more crowded than before, and the traffic is much heavier, natural environments are becoming worse and worse.
2. Write the title of the passage.
Population Problems
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 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
Government measure _____________________
1.37 billion
job
energy
water
cities
traffic
worse
the one-child policy and others
living space
Language points
1. 英文分数表达法：分子为基数词，分母为序数词(子基母序)。当分子大于1时，分母加“s”。
eg. 四分之一 one fourth/a quarter ；
四分之三 three fourths/quarters ；
二分之一 one second /a/one half ；
三分之二 two thirds
▲ 当“分数（或百分比） of + 名词/代词”做主语时，谓语动词根据of 后面的名词或代词来决定单复数形式。
eg. 1) More than three-fifths of the students have failed to pass the exam.
2) Only half of my money has gone.
2. because 与 because of
because 是连词，+ 句子。（常回答以why 开头的问句）.
because of + 名词/代词/v-ing.
Language points
3. so far “到目前为止，迄今为止”，常与现在完成时连用。
eg: We have learnt over 2000 words so far.
4. take measures to do sth 采取措施做某事
eg: It is necessary for you to take measures to work it out.
5. work well in sth/doing sth “在某方面起明显的作用”
eg: Doing eye exercises works well in protecting our eyesight.
6. thanks to sb/sth 幸亏，由于= because of …/with the help of…
eg: Thanks to the heavy rain, our crops are saved.
thanks for sth/doing sth （为某事） 感谢、道谢
7. offer to do sth 主动提出做某事
▲ offer sb sth 提供某人某物 = offer sth to sb 把某物提供给某人
provide sb with sth 提供某人某物 = provide sth for sb 把某物提供给某人
supply sb with sth 提供某人某物 = supply sth to sb 把某物提供给某人
Language points
8. at the same time 同时
9. worse and worse 越来越糟 ▲比较级+and+比较级 意为“越来越……”
e.g.The weather is getting colder and colder.天气变得越来越冷了。
Our school is becoming more and more beautiful 我们的校园变得越来越漂亮了。
10. be known/famous as + 身份，地位，职业 （作为......而出名）
be known/famous for + 特点，特长 （因为......而出名）
be known/famous to + 某人（被......熟知）
11. all 与 whole
all + 冠词（限定词）+ 名词
冠词（限定词）+ whole + 名词。
eg. all the morning = the whole morning all my life = my whole life
12. deal with 与 do with “处理，对付”
how to deal with “如何处理.......” = what to do with “如何处理.......”
2. Complete the following passage with the correct forms of the given words or phrases.
Every minute, about 261 babies are born in the world. That means people have to _____ food for about 375 940 newborn babies every day. The world’s population _______________ faster and faster. It has _______ one of the biggest social problems today.
China ______ the largest population in the world. There are about 1.3 billion people in China. It has ________ 20 percent of the world’s population. China has ____________ some policies to control the population, and these policies have _______ well. But China still _______ a serious population problem.
find
grows/ is growing
become
has
reached
carried out
worked
faces
grow reach have find work become face carry out
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 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 members.
less population, more living space , one-child policy
develop economy, reform and opening-up
save , new energy
take a bus and subway, walk, ride bikes
3b. Write a short passage of three paragraphs based on 3a.
China has the largest population in the world. It has caused many problems. Everyone should do something to solve them.
First, the government should keep the one-child policy to control the increasing population, and practice 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.
Exercises in class
五分之一
由于
同时
越来越差
到目前为止
采取措施做某事
作为...而出名
在做某事方面起到好的效果
多亏
给...提供...
满足人们的生活需求
有很长的一段路要走
one fifth
because of
at the same time
worse and worse
so far
take measures to do sth.
be known/ famous as
work well in doing
thanks to
supply sth. to sb./ supply sb. with sth.
satisfy people’s daily needs
have a long way to go
1. _____ of the students are boys in our school.
A. Two third B. Two threes C. Two thirds D. Second three
2. The one-child policy has _____ controlling China’s population.
A. been good at B. done well in C. taken care of D. worked well in
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. Thank D. Thank for
5. —Have you found your lost book_____ —No, I haven’t.
A.already B.yet C.still D.once
6. Our government should_____ measures to control the population.
A.give B.take C.put D.get
7. —How much is the white coat —It’s_____yuan.
A.one thousand, six hundred,eighty-eight B.one thousand six hundred eighty-eight
C.one thousand, six hundred and eighty-eight D.one thousand and six hundred and eighty-eight
8.—I have never visited a paper factory. —_____
A.So have I. B.So I have. C.Neither have I. D.I haven’t now.
Exercises in class
C
D
B
B
B
B
C
C
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. how to read a passage efficiently
4. how to write a passage about solving problems
Summary
We learn
We can
Homework
2. Write the composition in 3b.
1. Read 1a aloud.
3. Finish Section C in your workbook.
4. Preview Section D.