Unit 1 Topic 2 Section B课件2024-2025学年仁爱科普版英语九年级上册

Unit 1 The Changing World Topic 2 The population in developing countries is growing faster. Section B Learning Objectives 1. Some words: population, billion, increase, reach, luckily, policy, Russia, measure 2. Some phrases: increase by, developing countries, developed countries,do with, make new rules and policies 3. Some sentences: The world has a population of 7.2 billion. What’s the population of the USA? Only by working together can we create a better future. 4. 复习数字表达法，讨论人口问题 Review phrases 1. 在家，参加 2. 不再 3. 失踪 4. 打电话 5. 讨厌做 be in not...any more get lost=be missing call/ring sb. up hate doing 1. I really ___________ sports though it is good for my body. 2. The little girl _________on her way to school yesterday. Her parents are so worried. 3. -May I speak to Mr. Lee? -Sorry, he __________(不在). 4. After the terrible accident, she doesn’t dance ________. hate doing got lost isn’t in any more 1.我刚刚打电话给你，但是你不在家。 I have just called you, but you weren't in. 2.我之前从来没有去过那里，但是我再也不想去那里了。 I have never been there before, but I don't want to go there any more. 3.你已经找到他了吗？ Have you found him yet? 4.我不喜欢去那样的地方。 I don’t like going to a place like that. 5.我已经在那里看了一部电影。 I have already seen/watched a movie there. 6.你曾今去过新的购物中心吗？ Have you ever been to the new shopping center? Review sentences Numbers in life one hundred and fifty yuan two thousand and eight Olympic Games thousands of people two point two six (2.26) meters tall Learn numbers 5.2 point five point two 58 ， 741 ， 205 ， 480 thousand million billion fifty-eight billion, seven hundred and forty-one million, two hundred and five thousand, four hundred and eighty       billion → million → thousand → hundred 98.56 973 543.7 1 562 768 540 82 364 580 405 000 000 5 555 555 555 ninety-eight point five six nine hundred and seventy-three five hundred and forty-three point seven one thousand five hundred and sixty-two seven hundred and sixty-eight thousand , five hundred and forty eighty-two million, three hundred and forty-six thousand, five hundred and eighty four hundred and five million five billion, five hundred and fifty-five million, five hundred and fifty-five thousand, five hundred and fifty-five world 7 900 000 000 China 1 440 000 000 Fujian 4 1870 000 Learn new words -What is the population of ...? -It has a population of .... What a large _____________ ! population increase /ɪnˈkriːs/ decrease /dɪˈkriːs/ With his father's help, he can_______ /riːtʃ/ the apple. reach Russia /ˈrʌʃə/ 发展 v. _____________ n. _____________ adj.___________________ develop development developed/ developing America is a _________ country. India from Asia is a __________ country. With the ____________ of science and technology, people's lives have become easier. If the economy ____________ rapidly, more people can find jobs.                 developed developing development develops 1.Who are they? Where are they now? 2.What are they doing? Predict They are Kangkang and Maria. They are sitting on the sofa. They are reading the newspaper. 1.What's the report about? 2.What’s the population of the USA? A. 323 million. B. 1.27 billion. C. 1.36 billion. 3. What problem will the increasing population cause? Listen and answer It's about the world population. China has the largest population. Listen and match -What is the population of ...? -It has a population of .... 1C Read 1a and fill in the blanks. 82 million 1.36 billion a population increases protect Language points It is increasing by 80 million every year. increase by 增加了 increase to 增加到 Our class has increased _______ 2 new students this term. The number of the group increased _________ 20 totally. by to It also says that as the population increases, there will be more pollution and other social problems. "as" 随着，引导的时间状语从句 遵循主将从现原则 ___________________（随着天气变暖）, the ice will melt. As technology improves, _______________________." （尝试补全句子，用 "there will be" 句型） As the weather gets warmer​ there will be more job opportunities​ Read and find 1.有...的人口 2.增加了 3.增加到 4.社会问题 5.解决问题 6. 寻找保护环境的新方式 7. 制定新规定和政策 8. 创造更美好的未来 has a population of increase by increase to social problems do with the problems find new ways to protect the environment make new rules and policies create a better future 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? Discussion China has the largest population. The population of China is 1.36 billion. Canada has the smallest population. The population of Canada is 36 million. The population in developing countries is larger than that in developed countries. The large population may cause less living space, more pollution and so on. 人口多 large population 人口少 small population 采取措施做... take measures to do Choose the best answer. 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 Exercises null 77113.18 $$Hi康康，what are you reading? I am reading a report about world population. What does IT say? IT says . the world has a population of seven point two billion in two thousand fourteen, and IT is increasing by eighty two million . every year. That really a lot. Yes, china's population has already reached one point three six billion, and india has a population of one point two seven billion. What's the population of the U. S. A? Three hundred and twenty three million? Oh, I see. What else does he say? IT also says that as the population increases, there will be more pollution and other serious problems. So what should we do with the problems? 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. 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.