Unit 4 Reduce, Reuse, Recycle Section B 2a～3c课件2026-2027学年人教版九年级英语下册

该初中英语课件围绕“环境保护”主题，涵盖污染类型、保护措施等核心词汇，通过思维导图梳理知识脉络，结合视频引入海洋塑料污染问题，搭建从词汇学习到实际问题分析的学习支架，写作任务分审题、提纲、成篇三阶段指导。 其亮点在于融合语言能力与思维品质培养，通过分类词汇图表、短语匹配提升语言表达准确性，写作任务引导分析问题原因、影响及解决方案发展逻辑思维。视频情境增强真实感，检查清单促进自主学习，助力学生提升综合语言运用能力，为教师提供结构化教学资源。

Section B How can we protect our environment? ( 2a~3c) Unit 4 Reduce, Reuse, Recycle 2a Complete the chart with the words you learnt in this unit. You can add more. smog, waste gas, air pollution water pollution __________________ __________________ __________________ pollution Environment dust, ... waste water, oil spill, ... noise pollution loud traffic, cons-truction noise, ... soil pollution chemical fertilizer, toxic waste, ... white pollution plastic bags, ... law, ... Environment reuse, ... reduce, save energy, ... rules recycle protection n. /prəˈtekʃn/ 1. Steve ____________ the new environment quickly. 2. Jane _________________ hearing loss recently. 3. After dinner, Dad likes to ___________ the river bank for a while. 4. Mark found a good way to __________ the problem. 5. I am __________what you have achieved at school. 2b Match the words in the two boxes to make phrases. Then complete the sentences with the correct forms of the phrases. proud of walk proud deal get used suffer with from along of to got used to has suffered from walk along deal with 2c Complete the passage with the correct forms of the words in the box. Do you have other creative ideas to reuse tyres? Write them down. Tyres can only be used for a certain period of time. After that, most are buried underground. It is very difficult to _________ the number of tyres being sent to landfills. Each year, millions of used tyres are thrown away. Though a lot of these tyres are recycled to make new _________ , there are still many left behind. product material solution harm reduce reuse reduce products n. /ˈtaɪə(r)/ v. /ˈberi/ n. /ˈlændfɪl/ leave behind 丢下；忘了带 Watch and answer. 点击播放视频 Plastic waste. After watching this video, can you tell me what problem the ocean is facing? Ocean garbage is really heartbreaking. How does it affect my city? Oh! I find a related post on the environmental protection website. Writing 3a Read a post on an environmental protection website. Then put the topics in the order that they are mentioned. Pre-writing Let’s read first. We are deeply worried about the poor condition of our city’s beach. The beach is no longer a nice place to spend time at because it is covered in waste. Broken glass stops us from walking on the soft sand. Birds and sea animals sometimes get trapped by plastic bags, or even worse, eat them as food. Part of the rubbish is washed up onto the beach by the sea. However, most of the litter is left by people who go there to enjoy themselves. We need to take action before the problem gets worse. Teams from our school pick up rubbish on the beach every Saturday, but that is not enough. We hope that the city government will encourage more people to join our teams. Also, we need to set up more rubbish bins and make sure that people cooperate by throwing their litter in the bins before they leave. People should also try to bring their own bottles and bags so that there is less rubbish. I believe that we can solve this problem if we work together. wash up We are deeply worried about the poor condition of our city’s beach. The beach is no longer a nice place to spend time at because it is covered in waste. Broken glass stops us from walking on the soft sand. Birds and sea animals sometimes get trapped by plastic bags, or even worse, eat them as food. Part of the rubbish is washed up onto the beach by the sea. However, most of the litter is left by people who go there to enjoy themselves. We need to take action before the problem gets worse. Teams from our school pick up rubbish on the beach every Saturday, but that is not enough. We hope that the city government will encourage more people to join our teams. Also, we need to set up more rubbish bins and make sure that people cooperate by throwing their litter in the bins before they leave. People should also try to bring their own bottles and bags so that there is less rubbish. I believe that we can solve this problem if we work together. ____ A. Description of the problem ____ B. What the writer is doing about the problem ____ C. Actions the city and people should take ____ D. Harmful effects of the problem ____ E. Causes of the problem Let’s complete it. 1 2 3 4 5 What a really useful post！ If more people could post on the environmental protection website, I believe it would help us find more solutions to environmental problems. 3b What environmental problem do you worry about the most? Take notes about its causes and effects as well as some possible solutions. Problem: ___________________________ Cause Effect Solution Air pollution in my city factories burn coal; more and more cars on the road people get coughs; the sky looks grey use more electric cars; plant more trees; government should make stricter laws 3c Write a post for the website about the problem using the topic order in 3a and your notes above. light pollution global warming air pollution white pollution 根据3a中的主题顺序以及你上面的笔记，为网站撰写一篇关于该问题的帖子。 时态：一般现在时为主 主题：介绍一种你关心的环境问题(例如空气污染) 文体：网站帖子 (a post on a website) 人称：第一人称 要点：按照 3a 的话题顺序组织文章；：A（问题描述）→ D（有害影响）→ E（原因）→ B（已做努力）→ C（各方应采取的行动），同时结合自己在3b中记录的笔记内容。 一阶 审好题 定方向 While-writing 二阶 列提纲 写句子 一、开头：描述问题（A. Description of the problem） I am deeply worried about ______. ______ is becoming a serious problem in our city / country. I am very concerned about ______. The environment in our city is getting worse and worse. One of the biggest problems we face today is ______. 二、问题的影响（D. Harmful effects of the problem） ______ stops us from ______. ______ makes it hard for us to ______. People, especially ______, have got ______. ______ are hurt by ______. Some animals ______. ______ is / are harmful to ______. 三、问题的原因（E. Causes of the problem） Most of the pollution comes from ______. ______ is one of the main causes. ______ is also a big reason. Some people ______. The increasing number of ______ leads to ______. 四、已做的努力（B. What the writer is doing about the problem） Our school has started a ______ campaign / activity. Some students in our class ______. I try to ______. We ______ every ______, but that is not enough. 五、各方应采取的行动（C. Actions the city and people should take） We hope that the government will ______. Also, we need to ______. People should ______. Everyone can ______. It is important for us to ______. I believe that ______ if we ______. I am deeply worried about the serious air pollution in our city. The sky is no longer blue but grey. We can hardly see the sun on most days. Many people, especially the elderly and children, have got coughs. Students have to stay indoors during PE class because the air is too dirty. Most of the pollution comes from factories that burn coal and from the increasing number of cars on the road. Some people also burn waste in the open air. 三阶 成篇章 赏美文 开篇直接点明问题 However 形成强烈转折，that is not enough 以极简的语言否定前句，在结构上起到了“桥梁作用” 这是过渡句，在结构上起着“承上启下”的作用。before the problem gets worse 表达紧迫感 We need to take action before the problem gets worse. Our school has started a “Green Travel” activity to encourage students and teachers to walk or ride bikes to school. However, that is not enough. 这是全文的结尾句，兼具总结与升华功能。 We hope that the government will make stricter laws to stop factories from pouring waste gas. Also, we need to plant more trees and encourage people to use more electric cars. Everyone should try to take public transport instead of driving. I believe that we can solve this problem if everyone works together. Checklist Point(s) Content Problem, causes, effects, solutions (4 points) Follows 3a order (3 point) Structure Beginning Body Ending (3 points) Expressions Good expressions (2 points) No mistakes (grammar, tense, spelling) (2 points) Handwriting clean&tidy (1 point) Check your partner’s article according to the checklist. Post-writing Writing: write a post for the website about an environmental problem. Summary Lavf58.46.101 $