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1、Unit 8 Lessonl Roots&Shoots 学案【学习主题】文章体裁为说明文。属于“人与环自然”主题的环境保护话题。本文介绍了世界著名 动物行为学家珍古道尔教授建立环保组织一 “根与芽”的初衷及其目的和意义。其主题 意义在于让学生通过了解该环保组织，认知到生活当中每个人都能做一点事情，对环境产 生影响，并号召学生行动起来，参与到环境保护的活动中去。【课标要求】能从一般性文章中获取主要信息，能理解以环境保护为主题的文章的语篇要义，提高 环保意识，在日常生活中做到低碳、节俭，将世界建设得愈加美好。能识别语篇的类型和 结构，辨识和分析语篇的文体特征及衔接手段。【学习目标】1 .通过字面阅
2、读，提取文本中“根与芽”组织的基本信息、，如创立时间、创建者、创 建目的及名称的意义；感知并概括动词非谓语形式一 “v-ing”和“v-ed”在本文语境中的用 法;(Curriculum Standard)2 .通过解释性阅读，分析、归纳该组织的社会贡献及创建初衷；梳理说明文的文本结构，识别并赏析说明文的写作特点、语言特点ubject Guide)3 .通过批判性阅读，以自主学习和结对活动的方式，结合珍古道尔的话，对文中提 到的“根与芽”组织所传递的社会价值进行论证与评价，并就今后自己该如何行动形成汇 报，汇报须尽量包含文章中关于环境保护的话题词汇、词块及非谓语的语境用法。完成对 所学知识的迁
3、移创新。(Curriculum Standard)【评价任务】1 .画流程图，梳理、整合“就我一个(Just-me-ism)”问题的定义及后果，探讨本段在说 明文体中的意义，完成任务1; (Detection Objective 1)2 .画思维导图，提取文本中“根与芽”组织的基本信息，如创立时间、创建者、创建scarce n.缺乏small-engine vehicles 小排量汽车smoke-free area 无烟区snowstorm n.雪灾solar energy 太阳能solar radiation 太阳辐射spoil the image 有损形象sub-tropical a.亚热
4、带的surface waters 地表水sustain v.持续;维持sustainable development 可持续发展Ttake strong measures采取强有力的措施temperate ecosystems 温带生态系统the national welfare and livelihood国计民生threaten v.威胁tide n.潮汐tidal energy 潮汐能toxic waste有毒废物traffic laws and regulations 交通法规trash/rubbish/garbage n.垃圾tropical a.热带的tunnel n.隧道typh
5、oon n.台风urban garbage城市垃圾urbanization n.城市化urban water supply 城市供水Vvolcano n.火山Wwater conservation 水资源保护waste recovery 废物回I 收water and soil conservation 水土保持water and soil erosion 水土流失water power 水力water-saving habit 节水的习惯water shortage水资源短缺wetlands n.湿地white pollution 白色污染wildlife n.野生动植物wild speci
6、es野生物种wind erosion 风蚀目的及名称的意义，在语境中学习、概括“v-ing”和“v-ed”在本文语境中的用法，完成 任务 2; (Detection Objective 2)3 .画思维导图，阐释说明文文本结构与语言特点，完成任务3; (Detection Objective 2)4 .做主题汇报，深度论证、评价“根与芽”组织的社会价值，对今后自己如何发挥个人力量、打造美好环境之具体做法做表态，完成任务3;(Detection Objective 3)【学习过程】Step 1 Lead inLook at the 3 pictures at Page 30 and answer
7、 the following question.T: Have you ever done any of these things? When? Why?Ss:Step 2 Explore Just-me-isrrT1) Create a flow chart to show what2)Consider the following question:Why does the author begins the article with “Just-me-ism?A .To introduce the topic.B.To give examples of bad behaviors.C.To
8、 show the bad situation of the world.D.To explain the meaning of zJust-me-ismStep 3 Progressive Reading1 .Literal Readingl)Create a mind map to figure out the basic information about Roots & Shoots： such as foundation time, founder, its significance and hidden messages.2)Explore the contextual usage
9、s of v-ing and v-ed, identifying their individual functions in the sentences.2.Interpretive ReadingDraw an outline of the passage, showing the typical features of an expository article, including specific article structure and word usages.3.Critical ReadingFinish and give a report on Roots & Shoots”
10、, highlighting its great importance and what you are supposed to do in future.Step4 PracticeWrite an essay entitled “Say No To ,Just-me-ism,/ using v-ing and v-ed if possible.Step5 AssignmentPolish the essay.【学后反思】Have you grasped the ABC of an expository article?What can you do to support “ Roots &
11、 Shoots” ?【附】环境保护类话题词汇Aaccelerate the flow of traffic 加快车流量acid rain 酸雨acute diseases 急性病agricultural wastes 农业废物air pollution concentration 空气污染浓度air quality monitoring 空气质量检测Antarctic region 南极地区Arctic ecosystems北极生态系统arouse peoples awareness of提高人们方面的意识atmospheric circulation 大气循环at risk处于危险中Bban
12、 sb. from doing sth.禁止某人做某事battery disposal 电池处理biological diversity 生物多样性biological disaster 生态灾难biodiversity n.生物多样化botanical gardens 植物园Ccarbon cycle 碳循环carbon dioxide 二氧化碳carbon footprint 碳排放量carbon monoxide 一氧化碳catastrophe n.大灾难catchment areas 积水区cell-driven vehicles 电动汽车centralized treatment p
13、lant 集中处理厂chemical pollutant 化学污染物chronic diseases 慢性疾病clean energy清洁能源clear-cutting 乱砍滥发climate change 气候变化climate issues 气候问题climate zones 气候带coral reefs 珊瑚礁conserve energy 保护能源crop wastes农产物废物Ddam n.大坝damage/ruin environment 破坏环境deforest v .森林采伐densely-populated 人口密集的 disposable chopsticks 次,性筷子
14、disposal dishware 一次性餐具drinking cans 饮料罐drought n.旱灾Eeco-agriculture 生态农业ecosystem生态系统ecotourism生态旅游electric vehicles 电动汽车endangered species 濒临物种enhance environmental awareness增强环保意识environmental issues 环境问题environmental protection/conservation环境保护environmental security 环境安全environmentalist n.环保主义者e
15、xhaust vt,耗尽exhaust pipe 排气管extinction n.灭绝;绝种Ffarming economy 农业经济fatal diseases致命的疾病fertilizer n.化肥finite resource 有限资源flood n.水灾food contamination 食品?亏染forest conservation 森林保护forest coverage森林覆盖率forest fires森林大火fossil fuels矿物燃料 freshwater n.淡水Ggarbage classification 垃圾分类 gas-fueled vehicles 天然气汽
16、车 glacier n.冰川global warming 全球变暖grassland n.草地greenbelt n.绿化带greenhouse effect 温室效应greening space 绿化面积habitat n.栖息地haze n.雾霾heat wave 热浪high-power electrical appliance大功率电器hybrid cars混合动力车Iindustrial solid wastes 工业固体废物inorganic substance 无机物International river basins 国际河流流域Kkeep ecological balance
17、 保持生态平衡Llack adequate awareness 认识不够landfill n.垃圾填埋litter v .乱扔垃圾low carbon economy 低碳经济low visibility 能见度低Mmarine ecosystems海洋生态系统marine environment 海洋环境marine pollution 海洋污染melt v.融化mine filling矿山回填mineral n.无机物monitoring system 监控系统motor vehicle emissions机动车辆排放物multipurpose use 综合利用Nnatural disas
18、ters 自然灾害nature reserve自然保护区nuclear energy 核能0observe traffic rules 遵守交通规则odd and even license plate rule单双号车牌限行oil spill石油泄漏on-the -spot fine 当场处罚orange alert橙色预警organic a.有机物的organism n.有机物overfishing n.过度捕捞Ppermafrost ecosystems永久冻土生态系统petrol n.石油pipelines n.管道plastic bags 塑料袋pleasant living envi
19、ronment 宜居的环境polar ecosystems极地生态系统pollutant n.污染物pollution source 污染源public services 公共服务Rradiation protection 辐射防护rainfall n.降雨rainforest n.热带雨林recycled water 再生水reduce the emission of greenhouse gases降低资源消耗率renewable energy可再生能源resource exhaustion 资源枯竭resource-saving society资源节约型社会restore damaged ecosystem修复毁坏的生态系统reuse of materials 材料再利用river basin河流流域road maintenance 道路养护ruin the environment 破坏环境run-off n.径流Ssandstorm n.沙尘暴save energy 节能