Unit1 Topic2 SectionB （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 B 1 I、Master the new words and phrases： population, billion, increase, reach, luckily, policy, Russia, measure; increase by, carry out... II、Be able to read numbers in English. III、Be able to talk about population problems. Learning aims: 2 Pre-listening 3 Let’s learn about the top 15 countries by population. Warm up 4 New words &expressions The world has a population of 7.2 billion and it is increasing every year. China has the largest population. It has already reached 1.36 billion. /,pɒpju'leɪʃn/ n. 人口，人数 /'bɪljən/ num. 十亿 /ɪn'kri:s/ v. 增加, 增大 /'ɪŋkri:s/ v. 增加, 增大，增多 /ri:tʃ/ v. 实现； 达到；够得着；到达 5 The population problem has become more serious in developing countries. Luckily, China has already carried out some policies to solve the problem. Russia has also taken some measures to solve the population problems. /'lʌkɪli/ adv. 幸运地，运气好地 /'pɒləsi/ n. 政策，方针 /'rʌʃə/ n. 俄罗斯 /'meʒə/ n. 措施，方法 6 While-listening 7 There are so many people! What a large population! 形容人口多用large/big修饰，形容人口少用small 修饰 8 6800 82 82 82 The population is increasing by 82 million every year. = The world has a population of 7.2 billion. What a large population! Listen to 1a and match the information. 1b 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 10 Make new conversations. 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 Make similar conversations after the example. Example: A: What’s the population of the world? B: It’s about 7.2 billion. 11 Read 1a and fill in the blanks. 1c The world has a population of 7.2 billion in 2014 and it is increasing by __________ every year. China’s population has already reached __________ and India has ____________ of 1.27 billion. As the population _________, there will be more pollution and other serious problems. We should find new ways to ________ the environment, for example, making new rules and policies. 82 million 1.36 billion a population increases protect 12 Listen, look and say. 提示：点击文本框可听录音。 (Kangkang is reading a report on population in the newspaper.) 1a I am reading a report about world population. Hi, Kangkang, what are you reading? What does it say? It says the world has a population of 7.2 billion in 2014. And it is increasing by 82 million every year. 13 提示：点击文本框可听录音。 Yes. China’s population has already reached 1.36 billion, and India has a population of 1.27 billion. What’s the population of the USA? 323 million. Mmm, that’s really a lot. Oh, I see. What else does it say? 14 提示：点击文本框可听录音。 It also says that as the population increases, there will be more pollution and other serious problems. So, what should we do with the problem? There are a lot of things we should do. We should find new ways to protect the environment, for example, making new rules and policies. That’s great! Only by working together can we create a better future. (Data from: UN, Worldometer and National Bureau of Statistics, 2014) 15 Watch and follow 16 one hundred and fifty yuan The Winter Olympic Games in two thousand and twenty-two thousands of people one point seven five (1.75) 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 Look,read and learn 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 million thousand 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. 2 1 , 0 0 0 , 0 0 0 , 0 0 0 billion million 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 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 1 , 0 0 0 , 0 0 0 , 0 0 0 billion million thousand Practice 2 346 780 two million, three hundred and forty-six thousand, seven hundred and eighty 82 346 580 eighty-two million, three hundred and forty-six thousand, five hundred and eighty 405 000 000 four hundred and five million 5 555 555 555 five billion, five hundred and fifty-five million, five hundred and fifty-five thousand, five hundred and fifty-five 1 , 0 0 0 , 0 0 0 , 0 0 0 billon million thousand Practice Work in groups and discuss the population of the world. The following 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 problems does the large population cause? 3. What measures do you think should be taken to solve the population problem? China has the largest population with 1.36 billion. Canada has the smallest population with 36 million. The large population may cause less living space, more pollution and so on. 3 Post-listening 24 1. 在报纸上 ___________________ (在纸上: on a piece of papre) 2. 有......人口 ___________________________ .......的人口 ______________________________ 3. 增加了 _______________ 增加到 _____________ 4. 到达某地 ____________________________________ 达到某数据/伸手够到某物 ____________________________ 5. 发展中国家 ______________________ 发达国家 ______________________ 6. 执行 ______________ 7. 采取措施做某事 ________________________ Find the phrases. in the newspaper have a population of + 数量 the population of + 国家/地区 increase by increase to reach sp. = get to sp. = arrive in/at sp. reach+数词/reach (for) sth. developing countries developed countries carry out take measures to do sth. 25 The supermarket is very crowded. So it is. Lucy dances very well. So she does. 1. So it is. 确实如此。 Key points So +主语+ be/情态动词/助动词 （表示对上文情况的肯定和同意，意为“确实如此”） She has cleaned the room. So she has. 1. So it is. 确实如此。 — John studies very hard. — ____________ A. Neither does he. B. So does he. C. So he does. D. So he is. C Key points e.g. The population of China is very large. 中国人口众多。 The population in this area is becoming smaller and smaller. 这个地区的人口越来越少。 2. （1）population 的用法 ① population 通常用large/ big/ small 来修饰表示人口的多少。 ② 提问“人口有多少”常用what, 也可以用How large/How big 提问。 闯关练习： 1. There are 1.4 billion people in China. （对划线部分提问） ________ the ___________ of China? = ______ ________ is the ___________ of China? 2. India has a population of 1.1 billion.（对划线部分提问） ________ the ___________ of India? = ______ ________ is the ___________ of India? What’s population How large/big population What’s population How large/big population Key points e.g. The population of this city is nearly 300 000. 这个城市的人口将近三十万。 the population of + 国家/地区 eg. The population of the world is 7.2 billion. a population of + 数目 eg. China has a population of over 1.4 billion. 强调人口的具体分布或构成(作复数） population 集合名词 某地整体人口的数量(作单数） 2. （1）population 的用法 ③ 注意the population of 和 a population of 的区别。 练习：1. The population of Xingyi ________ about 1 million. 2. 1/5 of the population in the city _______ old people. is are e.g. 80% of the population in China are farmers. 中国百分之八十的人口是农民。 (2) with 在此句中意为“带有，具有”。 eg. The boy with black hair is my pen pal. China has the largest population ______ about 1.4 billion in the world. India has a population of _______ 1.31 billion. with with (3) The population in developing countries is larger than that in developed countries. 在比较级的句子中，that 通常代替上文中出现过的单数名词或 不可数名词，those代替复数名词。 练习： 1. I think the bread in Qinyuan is more dilicious than _______ in Haolilai. 2. The shoes in this shop are cheaper than _______ in that one. 3. The weather in Xingyi is better than _____ in Anshun. that those that 闯关练习： ( ) 1. ______ the population of Guizhou Province? A. What’s B. What number is C. How much is D. How many are ( ) 2. China has a ______ population and long history. A. many B. large C. much D. small ( ) 3. China has a much _____ population than _____. A. larger; Russia B. more; Russia C. larger; that of Russia D. more; that of Russia A B C 3. increase by + 数字 / 倍数 / 百分数 增加了…… e.g. The price of the house has increased by three times. increase to +数字 增加到…… e.g. The price of the house has increased to 500 000. 250 250 250 250 250 250 500 4. develop 发展（动词） developing 发展中的（形容词） developed 发达的（形容词） eg. China is a __________ (develop) country. America is a _____________(develop)country. developing developed 5. carry out 实行，进行，执行。 e.g. It won’t be an easy plan to carry out. 那并不是一个容易实施的计划。 e.g. This is a new policy, and they will carry it out next year. 这是一项新政策，他们将在明年实施它。 6. Only by working together can we create a better future. 只有共同努力，我们才能创造更美好的未来 这是一个倒装句(部分倒装)。以only开头的倒装句结构为： Only+状语(副词/介词短语/状语从句)+be动词/助动词/情态动词+主语+其他 only倒装句的三种情况是：only+副词位于句首、only+介词短语位于句首、only+状语从句位于句首。 only还可作为副词，形容词，连词使用。 Only在句首，强调唯一性。 e.g. Only in this way can we solve the problem. 只有这样，我们才能解决问题。 Exercises I.用所给词汇的适当形式或根据汉语提示填空。 1. The USA is a __________ (develop) country while China is still a ___________ (develop) country. 2. The government has ________ (carry) out a new policy to control water pollution. 3. Tim is tall enough __________ (reach) the apples on the tree. 4. Li Ming goes to school __________ (with) breakfast, so he feels very hungry. 5. What measures has the Chinese government taken ___________ (make) the people live a happier life? 6. Our school will take some _________ (措施) to stop the students from playing computer games. developed developing carried to reach without to make measures II.按要求完成句子。 1. He has already reached his goals.（改为一般疑问句） ______ he reached his goals ______ ? 2. There are 1.36 billion people in China. （对画线部分提问） ________ the ___________ of China? 3. In 2022, Germany had over 83 million people while France had about 68 million people. （改为同义句） The ___________ of Germany is ________ than that of France in 2022. 4. China has a large population.（改为感叹句） _______ ____ ______ __________ China has! 5. 2016年以前中国没有执行二孩政策。（完成译句） China didn’t ______ ______ the two-child policy until 2016. Has yet Exercises What’s population population larger What a large population carry out 37 Summary We learn: 1. Some words: population, billion, increase, reach, luckily, policy, Russia, measure 2. Some phrases: increase by, developing countries, developed countries, carry out, the one-child policy 3. Some sentences: What a large population! The world has a population of 6.8 billion. So it is. We can: 1. Read numbers in English. 2. Talk about population problems. 38 1. Learn the new words and phrases by heart. 2. Recite the dialog in 1a. Read the numbers in Part 2 on P12. 3. Finish Section B in the workbook. 4. Preview Section C. Homework 39 Thank you! 40 Lavf58.29.100 [i:VyAEOKGB3Kyq] null 170692.92 null 77113.18 77896.93 36284.18 $