Unit 1 Topic 2 Section B ( 课件）- 2025-2026学年仁爱科普版（2012）九年级英语上册

该初中英语课件围绕“发展中国家人口增长”主题，核心涵盖人口相关词汇（population, increase等）、数字读法（billion, million分组认读）及人口问题讨论。通过视频导入世界人口话题，结合数字认读任务（如1,000,000,000等分组练习）和对话听力，搭建从词汇、数字到语用的学习支架，衔接语言知识与实际话题应用。 其特色在于以任务链融合语言能力与思维品质培养。数字教学系统（分组读数方法及543.7等实例）夯实语言基础，小组讨论（分析人口问题及解决措施）提升问题解决能力，结合中国人口政策讨论增强文化意识与社会责任感。含视频、对话及分层练习，学生能提升综合语言运用能力，教师可直接利用任务链高效开展教学。

Five hundred and forty three point seven, one thousand five hundred and sixty two, six million four thousand and one, seven billion, one hundred and ninety eight million, seven hundred and sixty four thousand, five hundred and two. billions. increase. rich. policy. measure. 康康is reading a report on population in the newspaper。Wow, what a large population. What look? IT says the world has a population of seven point two billion, and IT is increasing by ninety million . every year. That's really a lot. Which country has the largest population? China has the largest population. IT has already reached one point three seven billion, and india is second with one point three one billion. What's the population of the U. S. A? Three hundred and twenty one million? Oh, I see. IT shows that the population in developing countries is larger than that in developed countries. Doesn't IT? yes. What's more, the population in developing countries is growing faster. so IT is the population problem has become more serious in developing countries. Luckily, china has already Carried out some policies to solve the problem. 据印度报业托拉斯11日报道，按照联合国周一发布的一份报告预计，印度将在明年超过中国，成为世界上人口最多的国家。报告还称，世界人口预计将在今年年底前突破80亿。联合国经济和社会事务部人口司的世界人口展望2022报告显示，世界人口预计将在2022年11月15日达到80亿，世界人口增长率在2020年已经降到1%以下，今年将会是1950年以来增长最慢的一年。联合国的新闻预测称，到2030年世界人口可能增长到约85亿，到2050年将约为97亿。预计在本世纪80年代将达到约104亿人的峰值，并在2000年本世纪结束前保持这一水平。今年的世界人口日正值一个具有里程碑意义的分，我们预计不久后地球上第80亿位居民将要诞生。联合国秘书长安东尼奥古特雷斯说，这是一个庆祝我们的多样性，认识到我们共同性的人性，惊叹于健康方面的进步，延长了寿命并大大降低了孕产妇和儿童死亡率的时刻。与此同时，同时这也提醒我们关爱地球的共同责任，也是反思我们在哪些方面仍未履行彼此承诺的时刻。他补充说。报告写道，预计印度将在2023年超过中国，成为世界上人口最多的国家，根据该报告，2022年印度的人口将达到14.12亿，而中国为14.26亿，预计到2050年，印度的人口将达到16.68亿。报告还称，2019年全球人均预期寿命为72.8岁，自1990年以来提高了近九岁。预计死亡率的进一步降低将导致在2050年全球人均预期寿命达到约77.2岁。然而2021年因为受到疫情影响，该数据降至71.0岁，其中最不发达国家的人均预期寿命比世界平均水平少七岁。西瓜视频。 population. luckily. russia. nullUnit 1 The Changing World Topic 2 The population in developing countries is growing faster. Section B 1 Teaching Objectives Knowledge aims: 学习并掌握新单词：population、increase、reach、Russia… 学会数字的读法 2. Skill aims: 在图文的帮助下根据听力内容完成相关活动的练习 有意识训练学生的听数字技能 3. Emotional aims: 进一步介绍中国及世界人口问题，引起我们对人口问题的思考。 2 New Words 1.population /ˌpɒpjuˈleɪʃn/ n. 4.reach / riːtʃ / v. 2.billion /ˈbɪljən/ num. 3.increase /ɪnˈkriːs/ v. 8.measure / ˈmeʒə(r) / n. 7.Russia / ˈrʌʃə / n. 6.policy / ˈpɒləsi / n. 5.luckily / ˈlʌkɪli / adv. Task 11 Number in our daily life. Class 2, Grade 9 Class 4, Grade 9 one hundred and five Twenty twenty-two Winter Olympics two point two six meters tall one point nine eight meters tall 1,000,000,000 one billion 1,000,000 one million 1,000 one thousand 3.14 three point one four 100 one hundred Task 12 Look、read and say. First, try to separate the number in groups of three from right to left. Then read it in order from billion to million and thousand. How to read numbers? 1 , 0 0 0 , 0 0 0 , 0 0 0 billion(十亿) million(百万) thousand(千) 1 0 0 0 0 0 0 0 0 0 Listen and read the numbers, paying special attention to the intonation. Then read the other numbers with your partner. Task 13-2 Tips 从右边数起，每三个数字为一组，用逗号隔开 第一个逗号是：thousand(千) 第二个逗号是：million(百万) 第三个逗号是：billion(十亿) Read and listen the numbers, playing special attention to the intonation. Task 14-2 1 , 0 0 0 , 0 0 0 , 0 0 0 million billion thousand 543.7 five hundred and forty-three point seven 1 562 one thousand, five hundred and sixty-two 6 004 001 six million, four thousand and one 7 198 764 502 seven billion, one hundred and ninety-eight million, seven hundred and sixty-four thousand, five hundred and two Task 15-2 Have a Try. 1 , 0 0 0 , 0 0 0 , 0 0 0 thousand million billion 973 nine hundred and seventy-three 3 980 three thousand , nine hundred and eighty 98 721 ninety-eight thousand , seven hundred and twenty-one 768 540 seven hundred and sixty-eight thousand , five hundred and forty Task 2 Watch a video and discuss the population of the world. The (人口) will (增长) to eight billion. What a (大的) population! population large increase 1. the world 2. China 3. India 4. the USA A. 323 million B.7.2 billion C. 1.36 billion D. 1.27 billion Task 3-1b Listen to 1a and match the information. 10 Task 3-1a (Kangkang is reading a report on population in the newspaper.) Kangkang: Wow! What a large population! Maria : What? Kangkang: Look it says the world has a population of 7.2 billion. And it is increasing by 82 million every year. Maria : Mmm, that’s really a lot. Which country has the largest population? Kangkang: China has the largest population. It has already reached 1.36 billion and India is second with 1.27 billion. Look at 1a and find out the key points. on = about 关于 a population of + 数字 ……人口数量 increase by + 数字 “增加了…” with，“有….” Task 3-1a Maria : What's the population of the USA? Kangkang: 323 million. Maria : Oh. I see. It shows that the population in developing countries is larger than that in developed countries, doesn't it? Kangkang: Yes. What’s more, the population in developing countries is growing faster. Maria : So it is. The population problem has become more serious in developing countries. Kangkang: Luckily, China has already carried out some policies to solve the problem. What’s the population of + 国家？ 询问人口数量 developing countries 发展中国家 developed countries 发达国家 that = the population 替代前文所指的名词单数 carry out = take 采取 Task 3-1a (Kangkang is reading a report on population in the newspaper.) Kangkang: Wow! What a large population! Maria : What? Kangkang: Look it says the world has a population of 7.2 billion. And it is increasing by 82 million every year. Maria : Mmm, that’s really a lot. Which country has the largest population? Kangkang: China has the largest population. It has already reached 1.36 billion and India is second with 1.27 billion Maria : What's the population of the USA? Kangkang: 323 million. Maria : Oh. I see. It shows that the population in developing countries is larger than that in developed countries doesn't it? Kangkang: Yes. What’s more, the population in developing countries is growing faster. Maria : So it is. The population problem has become more serious in developing countries. Kangkang: Luckily, China has already carried out some policies to solve the problem. 1. What a large population! 2. increase by 3. China has the largest population. 4. developing countries 5. What’s the population of the U.S.A? 6. developed countries 7. carry out 8. one-child policy 在文中找到并翻译中文 这么多人口！ 增加了 中国有最大的人口。 发展中国家 美国有多少人口？ 发达国家 执行 一孩政策 导学案-1 Task 3-1c Read 1a and fill in the blanks. The world has a population of 7.2 billion and it is increasing by __________ every year. _______ has the largest population. It has already reached __________ and India is _________ with 1.31 billion. The population in developing countries is ______ and is growing ________ than that in developed countries. Luckily, our country has carried out some policies to ______the problem. 82 million China 1.36 billion second larger faster solve Task 4-3 Work in groups and discuss the population of the world. The follow chart and questions may help you. 1. Which of these 5 countries has the largest/smallest population? What’s the population of it? 2. What can you tell from the population in developing countries and in developed countries? 3. What problems does the large population cause? 4. What measures do you think should be taken to solve the population problem? Task 4-31 1. Which of these 5 countries has the largest/smallest population? What’s the population of it? China has the largest population. The population of China is 1.37 billion. Canada has the smallest population. The population of Canada is 35 million. Every year we have 82 million more. Task 4-32 2. What can you tell from the population in developing countries and in developed countries? The population in developing countries is larger than that in developed countries. Every year we have 82 million more. Task 4-33 3. What problems does the large population cause? The large population may cause less living space, more pollution and so on. Every year we have 82 million more. Task 4-34 4. What measures do you think should be taken to solve the population problem? Every year we have 82 million more. 单项选择 1. — ______ is the population of Russia? — 143 million. A. How much B. How many C. What D. How 2. There are ______ students in our school. A. three thousands B. three thousands of C. three thousand of D. three thousand 3. — Jenny always helps others. — ______. A. So is she B. So she is C. So does she D. So she does 4. The population of China is ______ than that of Japan. A. larger B. more C. fewer D. less 5. House prices increased an average of 23% in 1998. A. with B. to C. at D. by 导学案-3 Summary Knowledge aims: 学习并掌握新单词：population、increase、reach、Russia… 学会数字的读法 2. Skill aims: 在图文的帮助下根据听力内容完成相关活动的练习 有意识训练学生的听数字技能 3. Emotional aims: 进一步介绍中国及世界人口问题，引起我们对人口问题的思考。 22 Homework Review the new words and useful expressions in Section B. 2. Practice 1a and 2 and by yourself. 3. Preview the new lesson, Section C 2019 Blues 984.0 null 1464.0 null 1368.0 null 1296.0 null 1608.0 null 1306.122 null 1536.0 36284.18 Lavf58.20.100 77896.93 $