Unit 6 课时3 Understanding ideas-Grammar（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，聚焦环保相关词汇（如pollution, harmful）、构词规则（动词变名词、un-前缀等）及语法（副词位置、现在进行时、yet表转折），通过“日常用品利弊”提问导入，以词汇学习（词形变换、例句）、语法分析（例句总结规则）、语用任务（讨论写作）为支架，构建知识脉络。 其亮点在于融合语言能力与思维品质，如Production环节小组讨论日常用品利弊，用yet表达转折，提升辩证思维；分层作业（A层巩固、B层仿写、C层短文）培养学习能力。教师可借助完整教学链高效教学，学生在语言实践中增强环保意识与表达能力。

Understanding ideas (Grammar) Unit 6 Live green 识别、理解副词修饰动词、现在进行时、并列连词 yet 表转折三种句式，能总结语法规则，并在文中找出同类例句。） 01 辩证看待事物 —— 物品给生活带来便利，但同时带来环境危害，学会一分为二看待科技产物 02 能描述一件日常生活用品：是什么、它的好处、带来的环境问题、我们该怎么做 03 学习目标 Lead in 01 New words 02 Presentation 03 Consolidation 04 Practice 05 Production 06 07 Homework Contents Lead in 01 Lead in What useful things do we use every day? Are they only good for us? New words 02 New words pollute /pəˈluːt/ v. 污染；弄脏；败坏（思想） 词形变换： ▶名词：pollution 污染 ▶形容词：polluted 被污染的 ▶短语：pollute water/air 污染水 / 空气 pollute the environment 污染环境 例句： ▶We must stop polluting our earth. 我们必须停止污染地球。 ▶Factories pollute the river. 工厂污染这条河流。 New words harm /hɑːm/ n. 伤害；损害 v. 伤害；危害 词形变换： ▶反义词：harmless 无害的 ▶形容词：harmful 有害的 ▶短语： do no harm没有害处 harm one’s health 损害某人健康 例句： ▶ Smoking does harm to your health. = Smoking is harmful to your health. 吸烟对你的健康有害。 New words safe /seɪf/ adj. 安全的；无危险的 词形变换： ▶名词： safety 安全 ▶反义词：dangerous 危险的 unsafe 不安全的 ▶短语： be safe 安全的 safe place 安全的地方 keep safe 保持安全 例句： ▶ It is safe to cross the road now. 现在过马路是安全的。 New words pollute→pollution protect→protection invent → inention invite → invition educate→education act→action attend→attention harm→harmful hope→hopeful care→careful use→useful thank→thankful power→powerful pain→painful safe→unsafe happy→unhappy fair→unfair lucky→unlucky able→unable real→unreal wise→unwise New words Complete the sentences with the rules of word formation. 1. The factory's (pollute) is causing harm to the environment. 2.The water is polluted. It is (safe) to drink. 3 Electronic (waste) is also (harm) to the environment. 4.The burning of oil for energy is one of the main causes of(green,house) gases. pollution unsafe waste harmful greenhouse Prsentation 03 Presentation (a) It quickly replaced wood and other natural materials. (b) Even humans are eating plastic waste! (c)Plastic makes life easier for many people, yet it brings long-lasting troubles to our planet. Read the sentences from the reading passage and summarise the grammar rules. Presentation (a) It quickly replaced wood and other natural materials. Read the sentences from the reading passage and summarise the grammar rules. quickly 副词，意为 “快速地，很快地”，修饰动词 replaced 同义改写（体会副词两种位置） It quickly replaced wood and other natural materials.（原句：副词在谓语动词前） It replaced wood and other natural materials quickly.（副词置于句末，语义不变） Presentation (b) Even humans are eating plastic waste! 现在进行时 be + doing 本句特殊用法：表现阶段发生、正在持续的现象，不一定此时此刻正在做 plastic waste plastic（形容词）+ waste（不可数名词）：塑料垃圾 waste 表 “垃圾、废弃物” 为不可数名词。 even`副词：甚至，连…… 都; 放在主语之前，加强整个句子语气。 Read the sentences from the reading passage and summarise the grammar rules. Presentation (c) Plastic makes life easier for many people, yet it brings long-lasting troubles to our planet. 并列连词 yet yet 连词，表转折，含义：然而，可是，连接两个意义相反的独立分句。 make + 宾语 + adj: 使某物 / 某人……；后面可以接形容词比较级，表示 使…… 变得更…… long‑lasting 由「形容词 + 现在分词」构成的合成形容词，放在名词前作定语。 Read the sentences from the reading passage and summarise the grammar rules. Presentation (a) It quickly replaced wood and other natural materials. (b) Even humans are eating plastic waste! (c)Plastic makes life easier for many people, yet it brings long-lasting troubles to our planet. Read the sentences from the reading passage and summarise the grammar rules. 一般过去时：过去发生的替换动作 现在进行时：当下正在发生 一般现在时：客观事实 Presentation Complete the passage with the correct form of the words in the box. You may need to join two words in the box together to form a new word. pollute use day harm easy every invent Cars: a changing story In the early 20th century, cars were welcomed as a very useful .They helped people travel more and quickly. Over the years, cars have become a(n) need for many families. However, we can now see that cars cause problems.Cars produce gases that pollute the air. According to the International Energy Agency (IEA), road travel, mainly cars, buses taxis and trucks, produces about 15% of the world's CO2 emissions. invention easily useful harmful Presentation Complete the passage with the correct form of the words in the box. You may need to join two words in the box together to form a new word. pollute use day harm easy every invent The caused by cars has become a serious danger to the environment. As car continues to grow, people are developing cars that use new kinds of energy. Today, electric cars are seen as an important part of a greener future. pollution every Consolidation 04 Consolidation 构词规则梳理 ① 动词 → 名词（v.→n.）动词变名词，加后缀，表动作 / 执行者 / 事物 -tion / -sion (动作名词） act (v. 行动)→action (n. 行动)； educate (v. 教育)→education (n. 教育)； decide (v. 决定)→decision (n. 决定) ② adj. 否定前缀 un‑ un-+ 形容词 → 反义形容词，表 “不……” Consolidation 构词规则梳理 happy (开心的)→unhappy 不开心的 fair (公平的)→unfair 不公平的； lucky (幸运的)→unlucky 不幸的 usual (平常的)→unusual 不寻常的。 ⚠️注意：只加在**形容词**前，不要乱加在名词前。 ③ -ful 形容词后缀 名词 + -ful → 形容词，含义：充满…… 的 Consolidation 构词规则梳理 care (n. 小心)→careful 小心的 help (n. 帮助)→ helpful 有帮助的 hope (n. 希望)→hopeful充满希望的 thank (n. 感谢)→thankful感激的。 💡对比记忆：-ful（肯定：充满…）;-less（否定：无…） careful 仔细的 ↔ careless 粗心的 Consolidation 构词规则梳理 ④ 复合名词 两个名词 / 名词 + 其他直接拼在一起构成新名词 结构：名词 + 名词 = 复合名词 class (班级)+room (房间)=classroom 教室； black (黑色)+board (板子)=blackboard黑板； book (书)+shop (商店)=bookshop书店； sun (太阳)+glasses (眼镜)=sunglasses太阳 Production 05 Production Work in pairs. Discuss an everyday thing that is useful but causesenvironmental problems. Use the words and expressions from thereading passage and the Useful expressions to help you. Useful expressions ... was considered / called... Many people believed... We can find... in... We can now see that... cause(s) problems Since..., ... has become a danger to.. ... is causing problems. ... doesn't solve the problem. It produces.. that cause(s)... Practice 06 Practice 一、单项选择 1．These bottles are ________ and can be used again. A．recyclable B．useless C．harmful D．unrecyclable 2．Green life is ________ to our future world. A．help B．helpful C．helpless D．helping 3．It is ________ to throw recyclable rubbish away. A．necessary B．unnecessary C．important D．possible 4．We should ________ water to save resources. A．reuse B．disuse C．unuse D．misuse A B B A Practice 5．Many small ________ can change our living world. A．act B．action C．actions D．active 6．This material is ________, so we cannot recycle it. A．recyclable B．unrecyclable C．useful D．green 7．People should pay attention to environmental ________. A．protect B．protection C．protecting D．protected 8．The ________ of air makes people sick in big cities. A．pollute B．polluting C．pollution D．polluted C B B C Practice 9．We all hate ________ because it damages the ecosystem. A．develop B．development C．pollute D．pollution 10．We can ________ some old clothes instead of throwing them away. A．rewrite B．reuse C．disappear D．disconnect D B Practice 二、完成句子 11．许多人相信塑料会让生活更美好。 Many people believed plastic would _______ _______ _______. 12．毫不奇怪，塑料现在已经充斥了我们的生活。 _______ _______, plastic has now filled our lives. 13．尽管如此，它还是缓慢而无声地露出了它黑暗的一面。 _______ _______ _______, it has slowly and silently shown its dark side. 14．一些动物，比如鲸鱼，会因误食塑料而死亡。 Some animals, such as whales, eat it _______ _______ and die. make     life      better Not surprisingly  Despite all this   by     mistake    Practice 二、完成句子 15．摆脱塑料垃圾并不容易。它可能需要数千年才能分解。 _______ _______ _______ plastic waste isn’t easy. It may take thousands of years to break down. 16．燃烧塑料会产生浓烟，造成空气污染。 Burning plastic produces thick smoke that ________ air pollution. 17．自20世纪60年代以来，塑料垃圾已成为海洋动物的一大威胁。   Since the 1960s, plastic waste has become a __________ __________ sea animals. Getting     free      of causes  danger      to Practice 二、完成句子 18．地球没有备选。让我们告别塑料吧！   There is no Planet B．Let’s __________ __________! 19．塑料也在陆地上造成问题。   Plastic is also causing problems __________ __________. go      plastic-free on      land Homework 07 Homework 分层家庭作业 A层（基础巩固｜全员必做） 1. 整理本课核心词汇+构词变形表，抄写； 2. 订正课本6、7习题，整理错题； 3. 背诵Useful expressions句型。 B层（提升拓展｜中等学生） 1. 完成A层任务； 2. 仿写3句话，用yet表达“某物便利但带来环境问题”。 C层（综合创新｜学有余力） 1. 完成A+B层； 2. 完成任务8完整小短文（60–80词）：介绍一件日常用品的利弊+环保建议。 感 谢 观 看 $