Unit 1 Topic 2 Section C 课件 2024-2025学年英语仁爱科普版九年级上册

Unit 1 The Changing World Topic 2 Section C 23021 1 1.学习目标 3.重点探究 2.自主学习 学习导航 5.当堂检测 6.课堂总结 4.拓展提升 23021 2 新课导入 Let's watch a video ... 学习目标 1.能熟悉并正确运用本课时的重点单词和短语 2.能学会谈论人口问题 4 自主学习 New words social adj. 社会的；社交的 worse adj. 更差的，更糟的 adv. 更糟，更差 supply v. 提供，供应 n. 供应量；补给 so far 到目前为止 government n. 政府，内阁 take measures to do sth. 采取措施做某事 thanks to 幸亏，由于 natural adj. 天然的；天生的 paragraph n. 段落 opportunity n. 机会 newborn adj. 新生的，初生的 percent n. 百分之…… offer v. 提供；主动提出 5 重点探究 1a Read and understand. 7.2 billion Discuss the questions with your partner. What social problems do you think China’s large population caused? Listen to 1a and write the title for the passage: Population Problems ______________________ 23021 1b Read 1a and match the main idea with each paragraph. 1. _____ Paragraph 1 2. _____ Paragraph 2 3. _____ Paragraph 3 A. the better situation in China now B. the world’s and Asia’s population C. the problems caused by large population B C A 23021 Reading Read Paragraph 1 and tell True or False. ( )1.The world’s population is 6.8 billion now. ( )2.Almost 50% of the world’s population live in Asia. F F 23021 Because of the large population, 1. there is ________________ (更少的生活空间) for each family. 2. it’s difficult for people ___________(找工作). 3. it’s hard for China to supply water and energy to _______________________(满足人们的日常需求). 4. most cities are _____________, and the traffic is much ________. less living space to find jobs satisfy people’s daily needs more crowded heavier Read Paragraph 2 and fill in the blanks. Read Paragraph 3 and choose the right answer. ( )1. “We still have a long way to go” means that _________. A. The population in China is very small now. B. We should still take measures to solve the population problem C. The population problem is easy to deal with. B 23021 1c Read 1a again and complete the table. Population of China ____________________ Social problem less ______________ fewer _______ opportunities less _______ and ______ more crowded ________ heavy _________ Situation now Living conditions _________________ The natural environment________________________ 1.36 billion job energy water cities traffic living space are improving rapidly is becoming better and better 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 375 840 newborn babies every day. The world’s population ______________ very faster. It has _______ one of the biggest social problems today. China ______ the largest population in the world. There are about 1.36 billion people in China. It has ________ 20 percent of the world’s population. China has __________ some policies to solve the population problem, and these policies have _______ well. But China still ______ a serious population problem. find grows/is growing become carried out reached grow reach have find work become face carry out has worked faces 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. 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? 3b Write a short passage of three paragraphs based on 3a. One possible version: China has a very large population in the world. It caused many problems. Everyone should do something to solve them. First, the government should take many measures to solve the problem, 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. 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. 拓展提升 Language points 分数词的表达法: 1. 结构: a)分子用基数词，分母用序数词。 1/3— one third(one-third) b)当分子大于1时，分母加复数。 3/4— three fourths (three-fourths) 2. 分数词的几种特殊形式： 　　1/3—one third =  a third 1/4—one fourth = a quarter 　　1/2—one second = a half 3/4—three fourths = three quarters 分数用法注意： a) 分数作定语时，与所修饰的名词之间加of。 e.g. 我们班三分之二的学生是男生。 ____ _______ _____ the students in our class are boys. b) 分数后面可接可数名词， 也可接不可数名词，谓语动词的单复数和分数词 后的名词保持一致。 　　Two fifths of the milk ______(be) drunk by Tom. 　　One third of the students _______(be) girls. is are Two thirds of 23021 Key phrases because of 由于 less living space 更少的生存空间 at the same time 同时 supply sth. to sb.=supply sb. with sth. 提供某物给某人 provide sth. for sb.= provide sb. with sth. 提供某物给某人 offer sb. sth.=offer sth. to sb. 提供某物给某人 satisfy people’s daily needs 满足人们的日常需求 natural environment 自然环境 so far 到目前为止 23021 10. take measures to do sth. 采取措施做某事 11. work well in doing sth. 在做某事方面起到好的效果 12. thanks to 多亏了 13. living conditions 居住条件 14. deal with 处理 15. offer job opportunities 提供就业机会 23021 一、根据句意及中文提示，完成句子。(每空一词) 1.因为他来晚了，所以我们错过了第一趟公交。 ________ _____ his being late, we missed the first bus. 2.我们必须采取措施阻止青少年吸烟，喝酒。 We must _____ _________ ____ stop teenagers from smoking and drink. 4.这个办法在提高他的英语口语方面很有效。 This method has ______ _____ _____ improving his spoken English. 5.到目前为止，我学会了5000多个单词。 ____ _____, I ______ ________ more than 5000 words. 当堂检测 Because of take measures to worked well in so far have learned 课堂总结 Unit 1 Topic 2 Section C 谈论人口的问题 分数和百分数的表达 Lavf58.20.100 null 108097.43 $$