Unit 6 课时2 Understanding ideas-Reading（教学课件）英语新教材外研版九年级上册

该初中英语课件围绕“Live green”主题，聚焦塑料污染的全球性问题，通过“寻找塑料—分析危害”的导入活动，结合新词汇学习搭建认知支架，衔接观点讨论与文本分析，引导学生理解塑料利弊及环保重要性。 其亮点在于以分类梳理（Benefits/Problems/Conclusion）培养思维品质，通过Post-reading讨论和分层作业（复述/报告/倡议书）提升语言能力与学习能力。任务型阅读结合语言点实例教学，助力学生树立环保意识，教师可直接使用完整教学流程与分层资源。

Unit 6 Live green Understanding ideas（Reading） 理解国际环保议题：塑料污染是全球性问题，地球没有备选星球（No Planet B），树立全球环保意识。 01 认识人类活动对海洋、极地、陆地生态的破坏，建立爱护地球的观念。 02 会利用图片预测文章内容，学会做笔记，分类梳理Benefits（益处）、Problems（问题）、Conclusion（结论）信息 03 学习目标 Lead in 01 Pre-reading 02 While-reading 03 Post-reading 04 Summary 05 Language points 06 Exercises 07 Homework 08 Contents Lead in 01 Lead in Where can you find plastic? Lead in What problems can plastic cause? Lead in Let’s learn some new words consider /kən'sɪdə(r)/ v.认为；仔细考虑 material /məˈtɪəriəl/ n. 材料；原料；物质；资料 shape /ʃeɪp/ n . 形状；外形 v. 使成形；塑造 cheap /tʃiːp/ adj. 便宜的；廉价的 environmental /ɪnˌvaɪrənˈmentl/ adj. 环境的 toothbrush /ˈtuːθbrʌʃ/ n. 牙刷 glove /ɡlʌv/ n. 手套 former /ˈfɔːmə(r)/ adj. 以前的；先前的 pron. 前者 Lead in Let’s learn some new words wing /wɪŋ/ n. 翅膀；机翼；风叶 tie /taɪ/ v. 系；捆；绑 n. 领带；纽带 bin /bɪn/ n. 垃圾箱；垃圾桶 11. average /ˈævərɪdʒ/ adj. 平均的；普通的 n. 平均数；平均水平 12. trouble /ˈtrʌbl/ n. 麻烦；问题；困境 v. 使烦恼；麻烦 13. wisely /ˈwaɪzli/ adv. 明智地；聪明地 Pre-reading 02 Pre-reading Before reading, do you think plastic is good or bad? While-reading 03 While-reading Read the passage and find out whether plastic has made life better or worse. When plastic was invented around the 1860s, it was considered an amazing material. It was light, easy to shape, long-lasting and cheap. It quickly replaced wood and other natural materials.Many people believed plastic would make life better. Back then, some people even saw plastic as an "environmental hero". Not surprisingly, plastic has now filled our lives.We can find it in bags, bottles, toothbrushes, gloves, mobile phones,cars, houses.. you name it. It is certainly convenient and has thousands of uses. Despite all this, it has slowly and quietly shown its dark side. Plastic waste was first seen in the oceans in the 1960s. Since then, it has become a danger to sea animals. Some animals,such as whales, eat it by mistake and die. The former "hero" kills more than 100,000 sea animals every year. By 2050, there could beeven more plastic than fish in the sea by weight. While-reading Read the passage and find out whether plastic has made life better or worse. Plastic is also causing problems on land. Birds' wings get tied in plastic lines. Bears' heads get stuck in plastic bins. Cows mistake plastic bags for food! Even humans are eating plastic waste! On average, we eat five grams of plastic a week. That's a whole bank card! Tiny pieces of plastic are found in the air we breathe. They can be carried around by the wind. There is even plastic "snow" at the North and South Poles. On "Planet Plastic", there is no place free from this. Plastic waste is hard to deal with. It may take hundreds of years to break down. Therefore, hiding the waste in the ground doesn't solve the problem. Burning it also produces thick smoke that causes air pollution. Plastic makes life easier for many people, yet it brings long-lasting troubles to our planet. Our choices today change the world tomorrow. With no Planet B to turn to, we must think clearly and use plastic wisely. 1. Whether plastic has made life better or worse. Plastic has made life better because it is cheap and convenient. But it also makes life worse as it creates terrible environmental pollution. We need to use it wisely. While-reading A. To celebrate how plastic improves our lives. B. To explore the main cause of environmental problems. C. To highlight how plastic is harming the environment. 2. Choose the purpose of the passage. While-reading Complete the notes with thewords and expressions from the passage. Many people thought plastic was an amazing material and even saw plastic as a(n) “ .” Benefit 1: It is light, easy to shape, and cheap. Benefit 2: It is and has thousands of uses. Benefit While-reading environmental hero long-lasting convenient Complete the notes with thewords and expressions from the passage. Problems Plastic has slowly and quietly shown its . Problem 1: It has become a danger to . Some animals it by mistake and die. It more than 100,000 sea animals every year. Problem 2: It is also causing problems on . It harms animals there. Humans eat of plastic a week on average. Tiny pieces of it are found and can be carried around by the wind. Problem 3: It's hard to deal with plastic waste. Plastic waste may take hundreds of years to . Burning plastic waste causes . Conclusion We must think clearly and use plastic . While-reading dark side sea animals eat kills land five grams in the air break down air pollution wisely Post-reading 04 Post-reading Think and share 1. Which problem of plastic do you find most shocking? Why? The most shocking problem is that plastic can enter our bodies. On average, we eat some plastic every week. It is bad for our health. We cannot easily get rid of it. 2. Do you think humans will ever stop using plastic? Why or why not? I believe humans won’t stop using plastic. It brings us lots of convenience. But we should produce less plastic waste and recycle more. Language points 05 Language points 1. It may take hundreds of years to break down. 它可能需要数百年的 时间才能降解。 核心句型：It takes + 时间 + to do sth 做某事花费（某人）多长时间 It 是形式主语，真正的主语是后面的 to do 不定式 may 情态动词：可能、也许，后接动词原形 take 例句： It takes me two hours to finish my homework. 完成作业花了我两小时。 Language points 2. ...... , It was considered an amazing material. .....它曾被看作是一种很棒的材料。 核心语法：被动语态 be considered (as)… 本句时态：一般过去时被动：was /were + 过去分词 consider 过去分词：considered as 可以省略，本句省略了 as：It was considered (as) an amazing material. 例句： This book is considered (as) a great work. 这本书被认为是一部伟大的作品。 Language points 3. It may take hundreds of years to break down.它可能需要数百年才能降解。 核心句型：It takes + 时间段 + to do sth 模糊概数：hundreds of + 名词复数 数百的，数以百计的 hundreds of years 数百年 同类：thousands of 数千；millions of 数百万 短语: break down（物质）分解、降解 Language points 4. Burning it also produces thick smoke that causes air pollution. 燃烧它还会产生造成空气污染的浓烟。 Burning it — 动名词作主语 that causes air pollution 定语从句 that 是关系代词，指代前面的 thick smoke，在从句中作主语。 因为先行词 smoke 是单数，从句谓语动词用 causes（cause 的三单）。 句子仿写：Burning rubbish produces thick smoke that causes air pollution. 燃烧垃圾会产生造成空气污染的浓烟。 Language points 5. With no Planet B to turn to, we must think clearly and use plastic wisely. 没有第二个地球可供求助，我们必须清醒思考，明智使用塑料。 句子结构 ： With no Planet B to turn to（with 复合结构，作原因 / 条件状语）, we（主语） must think… and use…（并列谓语） 句子仿写： With no Planet B to turn to, we should protect our environment. 没有第二个地球可以依靠，我们应当保护环境。 Summary 06 Summary Benefits： light, easy to shape, long-lasting, cheap, convenient Problems： danger to sea animals / harm land animals / microplastics in human body / hard to break down / air pollution Conclusion：use plastic wisely We have no Planet B. Exercises 07 Exercises 一、单项选择 1．These materials are strong enough to work but can easily __ in a natural environment. A．break down B．break off C．break out D．break into 2．He succeeded ________ all the difficulties he faced. A．despite B．because of C．as for D．instead of 3．Despite the ________, she never gave up her dream. A．setback B．opportunity C．benefit D．growth 4．We need a rope to ________ the boat. A．tie B．ride C．lie D．make 5．Last year was the warmest year on record, with global temperature 0.68℃ above the ________. A．earth B．cold C．warm D．average A A A A D Exercises 6．________ feeling tired, she continued working until midnight. A．In spite B．Although C．Despite D．Even though 7．Facing many ________ in his career, he remained optimistic. A．achievements B．advantages C．setbacks D．promotions 8．If you ________ something, you hold two or more things together with a rope. A．tie B．ride C．lie D．make 9．The project suffered a serious ________ due to the lack of funds. A．progress B．setback C．success D．breakthrough 10．I think the washing machine ________. A．breaks up B．knocks down C．goes on D．breaks down C C A B D Exercises 二、完成句子 11．它提醒人们保护健康免受空气污染的重要性。 It reminded people of the ________ of protecting health from air pollution. 12．塑料垃圾在20世纪60年代首次出现在海洋中。 Plastic waste was first ________ in the oceans in the 1960s. 13．伦敦在1952年被严重的空气污染所困扰。 London ________ ________ by heavy air pollution in 1952. 14．保护环境是每个人的责任。 Protecting the environment __________ __________ __________. 15．人们正在努力减少污染。 People are ________ ________ to reduce pollution. importance seen was     troubled   is      everyone’s     responsibility making     efforts Exercises 16．塑料曾经被认为是一种神奇的材料。 Plastic ________ once ________ as an amazing material. 17．这场灾难是由寒冷的天气和烧煤引起的。 The disaster ________ ________ by cold weather and the burning of coal. 18．电子废物对环境也有害。 Electronic ________ is also ________ to the environment. 19．我们平均每周吃下五克塑料——相当于一整张银行卡！   On __________, we eat five grams of plastic a week — that’s a whole bank __________! 20．塑料轻便、易塑形、耐用且便宜。   Plastic was __________, easy to shape, long-lasting and __________. was      considered was      caused  waste      harmful   average      card  light      cheap Homework 08 Homework A层【基础必做】 1. 背诵本课核心词汇短语，完成单词英汉默写 2. 熟读课文，能流利朗读；整理笔记4的填空，背诵重点句子  B层【提升选做】 1. 用5句话复述文章：plastic’s advantages + plastic problems + our idea 2. 回答Think and share其中一题，写成英文小段落（不少于40词） C层【拓展挑战】 1. 小组合作搜集一种替代一次性塑料的环保材料，准备1分钟英文mini-report 2. 撰写倡议书短文：What can we do to cut down plastic waste?（60词以上） 感 谢 观 看 null Other 210925.42 $Unit six, live Green understanding ideas. Activity two, read the passage and find out whether plastic has made life Better or worse, plastic good or bad. When plastic was invented around the eighteen sixties, IT was considered an amazing material. IT was light, easy to shape, long lasting and cheap. IT quickly replaced wood and other natural materials. Many people believed plastic would make life Better back then, some people even so. Plastic as an environmental hero, not surprisingly, plastic has now filled our lives. We can find IT in bags, bottles, tooth brushes, gloves, mobile phones, cars, houses. You name IT, IT is certainly convenient and has thousands of uses. Despite all this, IT is slowly and quietly shown its dark side. Plastic waste was first seen in the oceans in the ninety sixties. Since then, IT has become a danger to see animals, some animals such as whales, eat IT by mistake and die. The former hero kills more than one hundred thousand sea animals every year. By twenty fifty, there could be even more plastic than fish in the sea by weight. Plastic is also causing problems on land. Birds wings get tied in plastic lines. Their heads get stuck in plastic bins. Cows mistake plastic bags for food. Even humans are eating plastic waste. On average, we eat five grams of plastic a week. That's a whole bank card. Tiny pieces of plastic are found in the air we breathe. They can be Carried around by the wind. There is even plastic snow at the north and south poles on planet plastic. There is no place free from this. Plastic waste is hard to deal with. IT may take hundreds of years to break down. Therefore, hiding the waste in the ground doesn't solve the problem. Burning IT also produces thick smoke that causes air pollution. Plastic makes life easier for many people, yet IT brings long lasting troubles to our planet. Our choices today change the world tomorrow. With no planet b to turn to, we must think clearly and use plastic wisely.