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,1c Read 1a again and complete the table.,1.3 billion,job,energy,water,citie
2、s,traffic,worse,the one-child policy,living space,1 What problems do you think Chinas large population has caused? 你觉得中国的庞大的人口数目引起了什么问题？ 此句中do you think是插入语，what problems 作cause的宾语,所以do you think之后接陈述句语序。 2 one fifth 五分之一 要表示“几分之几的”时，采用 “分数+ of+ .”形式。 e.g. two thirds of the students三分之二的学生。,英语中分数表示法
3、为：分子采用基数词，分母采用序数词且有单/复数形式。(子基母序，分子大于1，分母加S。 e.g. one seventh two sevenths七分之一， 七分之二。 注：四分之一亦作a quarter，百分数读作“基数词+percent（无复数）”。 e.g. 30%读作thirty percent。 half意为“一半，二分之一”，相当于one second或50%。,3 because of+n./v.-ing因为。 eg. Now most families have only one child because of our countrys one-child policy.=B
4、ecause our country has the one-child policy, now most families have only one child. 由于我国实施独生子女政策，现在大多数家庭只有一个孩子。,whole着眼于整体，接可数名词单数形式。谓语动词用第三人称单数形式。 e.g. The whole family likes watching TV. 全家人都喜爱看电视。all着重于全体中的各个部分，接不可数名词或名词复数。 e.g. All the people in the ship lost their lives. 轮船上所有人都遇难了。,5 supply: n
5、.供应量，供给量，储备 eg. 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。,provide, offer与supply意思相近，但用法不同。 比较：provide sth. for sb./provi
6、de sb. with sthoffer sth. to sb./offer sb. sth. 6 worse and worse 越来越糟糕 比较级+and+比较级 意为“越来越” eg. 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。,7 be known as.be famous as. 以而闻名。 Edison was famous/known as a great scientist. 爱迪生以一位伟大
7、的科学家而闻名/著称。 8 It worked well in controlling Chinas population. 它在控制中国的人口方面很有成效。work/do well in doing sth. 在做某事方面很有成效。 eg. Reciting texts every day has worked well in learning English. 每天背诵课文在学习英语方面很有成效。,thanks to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。 eg. Thanks to the do
8、ctor, 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。 eg. Thanks for your invitation. 谢谢你的邀请。,执行,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
9、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 worlds population. China has _ some policies to control the population, and these policies have _ well. But China still _ a serious pop
10、ulation problem.,2 Complete the following passage with the correct forms of the given words or phrases.,find,grows/ is growing,become,carried out,reached,grow reach have find work become face carry out,has,worked,faces,Choose the best answer. 1. _ of the students are boys in our school.A. Two third
11、B. Two threes C. Two thirds D. 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 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. T
12、hanks to C. Thank to D. Thank for,C,D,B,B,Exercises,one sixthone ninthone twentieth,five sixthstwo ninthsseven 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 .,( )7.Have you found your lost book_? No, I havent. A.al
13、ready B.yet C.still D.once ( )8. Our government should_ measures to control the population. A.give B.take C.put D.get ( )9. How much is the white coat? Its_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 ( )10.I have never visited a paper factory. _ A.So have I. B.So I have. C.Neither have I. D.I havent now.,B,B,C,C,
