Unit1 Topic2 SectionC （趣味课堂课件）英语仁爱科普版九年级上册

九上Unit 1 The Changing World Topic 2 The population in developing countries is growing faster. Section C 1 I、Master the new words and phrases： social, supply, natural, worse, government, paragraph, opportunity, newborn, percent, offer; half of, one fifth, because of, satisfy people’s daily needs, so far, thanks to... II、Read the fractions in English. III、Be able to talk about population problems. Learning aims: 2 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 Review Pre-reading 4 Can China’s large population bring many big advantages? Warm up 5 New words &expressions China’s large population can bring big advantages, such as becoming one of the world’s biggest economies, building the largest education system in the world. 6 What social problems China’s large population caused? But large population has also brought some social problems. About 20 percent of the people in the world live in China. There was less living space for each family because of the large population. /'səʊʃl/ adj. 社会的；社交的 /pə'sent/ n. 百分之....... because of +名词 “因为......” 7 What was worse, finding jobs was difficult for lots of people. It was hard for China to supply water and energy to satisfy people’s daily needs. /wɜ:s/ adj./adv. 更差(的)，更糟(的) /sə'plaɪ/ v. 提供，供应 n. 供应量；补给；供应 what was worse 更糟的是 供水供电 满足人们的日常需要 8 So far, our government has taken many measures to solve the problem. Thanks to the effort of our government, China is developing quickly. And the natural environment is becoming better and better. 现在 so far 到目前为止 /'ɡʌvənmənt/ n. 政府，内阁 take measures to do sth. 采取措施做某事 thanks to幸亏，由于 /'nætʃrəl/ adj. 天然的；天生的 9 There are more than 50 thousand newborn babies every day in China. The government will offer more job opportuninties in the future. /'nju:bɔ:n/ adj. 新生的，初生的 /'ɔ:fə/ v. 提供；主动提出 /,ɒpə'tju:nəti/ n. 机会，时机 10 While-reading 11 ___________________________ The more people, the better? Not necessarily. Some countries have large populations. This has been both good and bad for these countries. The large populations have helped them develop, but have caused them some serious problems as well. Becuase of the large populations, there was less living space for each family in some countries. 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 example, it was hard for the countries to supply water and energy to satisfy people’s daily needs. Many cities are more crowded and the traffic is much heavier, too. So far, some governments have taken many measures to solve the problems. And they worked well. Thanks to the efforts of the governments, people’s living conditions are improving rapidly. The natural environment is becoming better and better. Read 1a and match the main idea with each paragragh. Then write the title of the passage. 1. _____ Paragraph 1 A. the better situation now 2. _____ Paragraph 2 B. two sides of large populations 3. _____ Paragraph 3 C. the problems caused by large populations Skimming 1b B C A Population Problems /'pærəɡrɑ:f/ n. 段；段落 12 Large Population Social problem less ______________ fewer _______ opportunities less _______ and _______ more crowded ________ heavier _________ Situation now Living conditions ______________________ The natural environment__________ job water energy cities traffic are improving rapidly living space is becoming better and better 1c Read 1a again and complete the table. Scanning Population Problems The more people, the better? Not necessarily. Some countries have large populations. This has been both good and bad for these countries. The large populations have helped them develop, but have caused them some serious problems as well. Read paragragh 1 and fill in the blanks. Some countries have large populations.This has been ___________ for them. The large populations have helped them ________,but have _______ them some serious problems as well. Careful reading 提示：点击文本框可听录音。 good and bad develop caused 14 Becuase of the large populations, there was less living space for each family in some countries. 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 example, it was hard for the countries to supply water and energy to satisfy people’s daily needs. Many cities are more crowded and the traffic is much heavier, too. Read paragragh 2 and list the social problems . 提示：点击文本框可听录音。 Because of the large population 1. There was less living space for each family in some countries. 2. It was difficult for lots of people to find jobs. 3. it was hard for the countries to supply water and energy to satisfy people's daily needs. 4. Many cities are more crowded and the traffic is much heavier, too. 15 1.4 billion÷7.2 billion≈1 ／ 5 About one fifth of the people in the world live in China. one fifth 20 percent 3 billion÷ 6.8 billion≈1／2 half 50 percent (50%) Almost half of the people in the world live in Asia. So far, some governments have taken many measures to solve the problems. And they worked well. Thanks to the efforts of the governments, people’s living conditions are improving rapidly. The natural environment is becoming better and better. Read paragragh 3 and finish the following task. Which changes are there with the efforts of the governments? 提示：点击文本框可听录音。 Thank to the efforts of the governments, 1. People’s living conditions are improving rapidly. 2. The natural environment is becoming better and better. 17 Watch and follow 18 Try to retell 1a according to the pictures and the information. The large populations have helped some coutries ________, but have caused them some serious problem _____ ______. develop as well ____________ the large population, there is less ___________ for each family in some countries. Because of living space 19 Try to retell 1a according to the pictures and the information. Because of the large population, _____ was difficult for lots of people ________ jobs. to find it Because of the large population, _____ was hard for some countries __________ water and energy to sastify people’s daily needs. it to supply 20 Try to retell 1a according to the pictures and the information. Because of the large population, many cities are _______ crowded than before, and the traffic is ________ heavier, too. much more 21 So far, some governments ____________ many measures to solve the problem. And they worked ______. __________ the efforts of the governments, people’s _______________ are improving rapidly. The natural environment is becoing _______________. Try to retell 1a according to the pictures and the information. have taken well Thanks to living conditions better and better 22 Close your books and let’s find mistakes！ China has the largest population with one five of the people living in China. There is fewer living space for each family. And it is difficulty for people to find jobs. At the same time, the large population have caused energy problems. Most cities are more crowded than before, and traffic is more heavier. Natural environments are becoming more and more better. 1. ______ 2. _______ 3. _______ 4. _______ 5. _______ 6. _______ fifth less difficult has much better and better 23 Complete the following passage with the correct forms of the given words. lose choice enough make space good Sometimes, it is bad for countries to have large population. First, some people are short of living _________ because of large population. They have no ________ but to live with their relatives or friends. Second, there are not _________ job opportunities for people to choose from. Some of them can’t get jobs, and some others may _______ their jobs. Third, the streets in the cities get dirtier for littering. Luckily, a number of countries have ________ great efforts to deal with such kinds of problems. People’s living conditions are getting _______ and the natural environment is more beautiful than before. 2 space enough lose made better choices 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. 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 Write a short passage of three paragraphs based on 3a. Some countries have very large populations in the world. It has caused many problems. Everyone should do something to solve them. First, the government should take many measures to solve the problem. 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 Post-reading 27 1. 社会问题 ___________________ 2. ......的一半 _______________ 3. 整个国家 ___________________ 4. 供水供电 _________________________ 5. 自然环境 ______________________ 6. 到目前为止 ___________ 7. 幸亏，由于 _______________ 8. 处理，解决 _____________ Find the phrases. social problem half of... the whole nation supply water and energy natural environment so far thanks to deal with 28 1. (1)分数的表达 one sixth one ninth one twentieth five sixths two ninths seven twentieths 英语中分数表示法为：分子用基数词; 分母用序数词, 且有单/复数形式。当分子大于1时，分母要用复数形式。 Key points one / a half a quarter three quarters three and a half 1. (2)分数的用法 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. More than three-fifths of the students _______________ (fail) to pass the exam. 超过五分之三的学生未能通过考试。 Only half of my money _________________ (go). 只有一半的钱不在了。 have failed has gone 闯关练习： 1. — What’s one third and a half, do you know? — Yes, it’s ________. A. one fifth B. two fifths C. six fifths D. five sixths 2. — Which is the smallest number of the four? — ________. A. A half B. Two thirds C. A quarter D. Three fourths 3. Which is the smallest number, a half, a quarter or _____________(三分之二). 4. We all know forty-five minutes is three _____________ （刻）. D C two thirds quarters 2. (1) because 与 because of because 是连词，+ 句子（常回答以why开头的问句）。 because of 是复合介词， + 名词/代词/v.-ing. eg. We didn’t go to the zoo ___________ the heavy rain last Sunday. We didn’t go to the zoo ___________ it rained last Sunday. (2) thanks to 与 thanks for （to 和for 都是介词） thanks to “多亏了/由于” . 指因为......而产生好的结果。 thanks for “因（做）某事而感谢某人”（只表达感谢，不补充结果）。 eg. _____________ the policeman, Lily found her lost sister at last. _____________ your help. = ________________ helping me. because of because Thanks to Thanks for Thanks for 闯关练习: 1. ____________ John is ill, he is absent today. 2. _____________ your help, I finished the task on time. 3. He can’t come _______________ the heavy rain. 4. ______________ listening to my problems and giving me your advice, Mr. Black. Because Thanks to because of Thanks for 3. all 与 whole all + 冠词（限定词）+ 名词 冠词（限定词）+ whole + 名词 eg. all the life = the whole life all my life = my whole life all the morning = the whole morning a whole roast duck 练习： all my books = ___________ books all the country = ____________ country We have to go to school for a ________ week after the holiday! A. whole B. all C. my D. this my whole the whole A 4. 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. provide, offer与supply意思相近，但用法不同。 比较：provide sth. for sb. / provide sb. with sth. offer sth. to sb. / offer sb. sth. 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. 5. (1) so far 现在完成时的标志。 eg. Half of the sheep on the farm _______ so far. A. has died B. have been died C. died D. have died (2) take measures to do sth. 采取措施做某事 eg. Chinese government must take measures __________ (protect) the environment. (3）work well in (doing) sth. 在某方面成效显著。 eg. This new kind of medicine works well in ___________ (control) the bird flu. D to protect controlling 5. (4) 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） eg. Guilin is known _______ its beautiful mountains and rivers. Chairman Mao is famous _______ every Chinese. Xue Zhiqian is known ______ a singer. Kunming is known ________ its enjoyable weather ______ “Spring City”. A. as; for B. to; as C. for; to D. for; as for to as D 闯关练习： 1. Yao Ming ________________ most young people. 2. He ___________________ a great inventor. 3. France __________________ his fine food and wine. is famous to is famous as is known for 6. 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.......” eg. 1. I don’t know _______ . A. how they do with the problem B. what do they do with the problem C. how they will deal with the problem D. what they will deal with 2. I don’t know how to deal with these problems.（改为同义句） I don’t konw _______ to ______ with these problems. C what do Exercises I.用所给词汇的适当形式或根据汉语提示填空。 1. The traffic is getting much ________ (heavy) than before in our city. 2. So far, Chinese government has offered lots of chances __________ (help) the homeless people return to normal life. 3. Chongqing is ________ (know) as a Mountain City. 4. The policy has worked well in __________ (stop) driving after drinking. 5. Do you have other ____________ (difficult) in life? 6. Online shopping can ________ (提供) us various kinds of goods from all over the world. heavier to help known stopping difficulties offer II.按要求完成句子。 1. Many problems were caused by large population.（改为一般疑问句） ______ many problems ________ by large population? 2. China carried out the one-child policy to solve the population problem. （对画线部分提问） ______ ______ China ______ out the one-child policy? 3. The old photo made it possible for me to find my birthplace. （改为同义句） I could find my birthplace _________ __________ the old photo. 4. I don’t know how to deal with these problem.（改为同义句） I don’t know _______ to _______ with these problems. 5. Schools should supply more chances to students to take part in labor activities.（改为同义句） Schools should ______________ students ______ more chances to take part in labor activities. Were caused Exercises Why did carry because of/thanks to what do supply/provide with 42 Summary We learn: 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 can: 1. Read the fractions in English. 2. Talk about population problems. 43 1. Learn the new words and phrases by heart. 2. Recite the passage in 1a. Write the composition in 3b. 3. Finish Section C in the workbook. 4. Preview Section D. Homework 44 Thank you! 45 Lavf58.28.100 null 170692.92 null 76277.18 $