Unit 1 Period 1 Welcome to the unit & Reading（导学案）英语译林版必修第三册

该高中英语导学案围绕“Unit 1 Nature in the balance”展开，聚焦核心词汇（如ecosystem, biodiversity）及短语（break down, due to），通过预习清单的词汇填空与主题预测搭建学习支架，引导学生从略读把握语篇结构到精读提取关键信息，逐步理解《亚马逊雨林：自然瑰宝》的逻辑脉络。 资料亮点在于融合语言能力与思维品质培养，通过小组讨论辩证分析雨林保护与人类责任，结合省略句识别与运用提升语法能力，分层作业设计满足不同学生需求，助力学生在语言实践中发展环保意识与自主学习能力。

Unit 1 Nature in the balance Period 1 Welcome to the unit & Reading（导学案）原卷版 【学习目标】 1.掌握核心词汇（harm, ecosystem, biodiversity, species, survive, damage 等）及短语（break down, due to, in turn, breathe life into），能准确理解并运用。 2.理清《亚马逊雨林：自然瑰宝》的语篇结构，通过略读、精读提取主旨大意与关键细节（面积、物种、生态作用等）。 3.理解省略句的基本用法，能识别语篇中的省略现象并初步运用。 4.树立环境保护意识，能结合文本探讨雨林保护的重要性及人类责任。 提升阅读策略运用能力，学会通过对比、定位关键词等方式解读说明性语篇。 【学习重难点】 教学重点 1.核心词汇、短语的理解与搭配运用。 2.语篇关键信息的提取与主旨归纳，把握“雨林概况 — 生态价值 — 面临威胁”的逻辑脉络。 教学难点 1.省略句在语境中的识别与正确运用。 2.结合文本信息辩证分析人类活动与自然的关系，提出合理的保护建议。 【预习清单】 （一）核心词汇与短语填空 1. /hɑːm/n. & vt. ________（伤害，损害） 2. /ˈiːkəʊsɪstəm/n. ________（生态系统） 3. /ˌbaɪəʊdaɪˈvɜːsəti/n. ________（生物多样性） 4. /ˈspiːʃiːz/n. （pl. 同形）________（种，物种） 5. /səˈvaɪv/vi. & vt. ________（生存；幸存） 6. /ˈdæmɪdʒ/vt. & n. ________（损害，破坏） 7. break ________（分解；出故障） 8. due ________（由于，因为） 9. in ________（相应地，转而） 10. breathe life ________（给…… 注入活力） （二）预习思考 1. 浏览单元主题图与标题，预测文章主要介绍亚马逊雨林的哪些方面？ 2. 结合常识，你认为雨林对地球生态有哪些重要作用？ 【学习过程】 学习理解 1. 略读・主旨把握 Read the passage quickly and match the paragraphs with their main ideas. Paragraph Main Idea Para. 1 A. 雨林不同层次的生态结构及生物分布 Para. 2 B. 亚马逊雨林的基本概况（位置、面积、河流） Para. 3 C. 雨林的生态价值（固碳、产氧、物种宝库） Para. 4 D. 雨林面临的威胁及人类需思考的问题 Para. 5 E. 雨林的重要性：维持地球生态平衡 2. 精读・细节提取 Read the passage carefully and fill in the blanks with key figures. Aspect Details Coverage area Around ________ square kilometres (more than half the size of China) Length of the Amazon River Close to ________ kilometres (100 km longer than the Yangtze River) Plant species More than ________ known species in the Amazon Bird species Over ________ species Mammal species Over ________ species Oxygen production Over ________ of the Earth’s total Loss in 50 years About ________ of the rainforest 3. 精读・句式分析 Identify the elliptical sentences in the following excerpts and 补全省略部分. When ________ (they are) failed to produce any promising results, Tu referred to the ancient books.（参考单元语法，类比迁移） Some call for the application of modern technology, and others ________ (call for) a change of lifestyle. ________ (It) Sounds great! 应用实践 读后-思维提升 小组讨论 1. What makes the Amazon rainforest a "natural treasure" according to the passage? 2. What are the main threats to the Amazon rainforest? How can we protect it? 读后-课堂练习 （一）单项选择 1. The Amazon rainforest, ________ covers 6 million square kilometres, is the largest in the world. A. which B. that C. who D. what 2. ________ the heavy rain, the river has flooded many villages. A. Because B. Due to C. Thanks D. Owing 3. Many species are in danger of extinction ________ the loss of their habitats. A. as B. since C. because of D. for 4. The old tree ________ by the storm has been removed from the park. A. damage B. damaging C. damaged D. to damage 5. —Have you finished reading the passage? —________. A. Yes, I do B. Yes, I have C. No, I don’t D. No, I haven’t read （二）句子翻译 1. 亚马逊雨林通过产生氧气，为地球注入活力。（breathe life into） 2. 由于人类活动，许多物种正面临灭绝的危险。（due to, in danger of extinction） 3. 分解动植物遗体的微生物在生态系统中起着重要作用。（break down, play a role） （三）Complete the passage with the correct forms of the words and phrases in the box. （harm, survive, biodiversity, break down, due to, in turn, damage, breathe life into） The Amazon rainforest is home to rich ________. However, human activities have ________ this precious ecosystem. ________ irresponsible farming and logging, a large area of the forest has been destroyed. Many species struggle to ________ in the changing environment. The rainforest ________ the planet by fixing carbon and producing oxygen. If it continues to be ________, the global climate will be affected, and ________, human life will face serious risks. Dead plants and animals ________ quickly in the hot and humid climate, returning nutrients to the soil. 总结-语言点 （一）核心词汇 1. survive v. 生存 → survival n. 生存；survivor n. 幸存者 2. damage vt. & n. 损害 → 搭配：do damage to 对…… 造成损害 3. biodiversity n. 生物多样性 → 构词：bio-（生物）+ diversity（多样性） （二）重点短语 1. due to 由于（后接名词 / 代词 / 动名词，作表语或状语） 2. in turn 相应地；转而（强调逻辑上的递进或因果关系） 3. break down 分解；（机器等）出故障；（身体）垮掉 （三）语法聚焦：省略句 1. 定义：为避免重复、使句子简洁，省略语境中明确的成分（主语、谓语、宾语等）。 2. 常见场景：简短回应、并列句、状语从句中（when/if/while 等引导） 自我评价 Evaluation Item Self-score (1-5) Notes Mastery of core words and phrases 是否能准确运用词汇完成练习与表达？ Ability to extract key information 是否能快速找到语篇中的数字、事实等细节？ Understanding of ellipsis 是否能识别并补全省略句？ Participation in group discussion 是否能结合文本发表自己的观点？ Awareness of environmental protection 是否能提出合理的雨林保护建议？ 迁移创新 作业内容 本节课作业二选一，为分层作业，难度有所区别。基础一般的同学可以选择作业一，基础较好的同学可以选择作业二。 作业一（基础层） Write a short passage (80-100 words) introducing the Amazon rainforest, using at least 5 core words or phrases from this lesson. 作业二（提高层） Suppose you are an environmental activist, write a letter to the local government of Amazon regions, calling for the protection of the rainforest. Include the importance of the rainforest and specific protection measures (120-150 words). 1 学科网（北京）股份有限公司 $ Unit 1 Nature in the balance Period 1 Welcome to the unit & Reading（导学案）解析版 【学习目标】 1.掌握核心词汇（harm, ecosystem, biodiversity, species, survive, damage 等）及短语（break down, due to, in turn, breathe life into），能准确理解并运用。 2.理清《亚马逊雨林：自然瑰宝》的语篇结构，通过略读、精读提取主旨大意与关键细节（面积、物种、生态作用等）。 3.理解省略句的基本用法，能识别语篇中的省略现象并初步运用。 4.树立环境保护意识，能结合文本探讨雨林保护的重要性及人类责任。 提升阅读策略运用能力，学会通过对比、定位关键词等方式解读说明性语篇。 【学习重难点】 教学重点 1.核心词汇、短语的理解与搭配运用。 2.语篇关键信息的提取与主旨归纳，把握“雨林概况 — 生态价值 — 面临威胁”的逻辑脉络。 教学难点 1.省略句在语境中的识别与正确运用。 2.结合文本信息辩证分析人类活动与自然的关系，提出合理的保护建议。 【预习清单】 （一）核心词汇与短语填空 1. /hɑːm/n. & vt. ________（伤害，损害） 2. /ˈiːkəʊsɪstəm/n. ________（生态系统） 3. /ˌbaɪəʊdaɪˈvɜːsəti/n. ________（生物多样性） 4. /ˈspiːʃiːz/n. （pl. 同形）________（种，物种） 5. /səˈvaɪv/vi. & vt. ________（生存；幸存） 6. /ˈdæmɪdʒ/vt. & n. ________（损害，破坏） 7. break ________（分解；出故障） 8. due ________（由于，因为） 9. in ________（相应地，转而） 10. breathe life ________（给…… 注入活力） （二）预习思考 1. 浏览单元主题图与标题，预测文章主要介绍亚马逊雨林的哪些方面？ 2. 结合常识，你认为雨林对地球生态有哪些重要作用？ 【答案】 1. harm 2. ecosystem 3. biodiversity 4. species 5. survive 6. damage 7. down 8. to 9. turn 10. into 【学习过程】 学习理解 1. 略读・主旨把握 Read the passage quickly and match the paragraphs with their main ideas. Paragraph Main Idea Para. 1 A. 雨林不同层次的生态结构及生物分布 Para. 2 B. 亚马逊雨林的基本概况（位置、面积、河流） Para. 3 C. 雨林的生态价值（固碳、产氧、物种宝库） Para. 4 D. 雨林面临的威胁及人类需思考的问题 Para. 5 E. 雨林的重要性：维持地球生态平衡 【答案】 Para.1 - E；Para.2 - B；Para.3 - A；Para.4 - C；Para.5 - D 2. 精读・细节提取 Read the passage carefully and fill in the blanks with key figures. Aspect Details Coverage area Around ________ square kilometres (more than half the size of China) Length of the Amazon River Close to ________ kilometres (100 km longer than the Yangtze River) Plant species More than ________ known species in the Amazon Bird species Over ________ species Mammal species Over ________ species Oxygen production Over ________ of the Earth’s total Loss in 50 years About ________ of the rainforest 【答案】 6 million；6,400；40,000；1,300；400；20 per cent；17 per cent 3. 精读・句式分析 Identify the elliptical sentences in the following excerpts and 补全省略部分. When ________ (they are) failed to produce any promising results, Tu referred to the ancient books.（参考单元语法，类比迁移） Some call for the application of modern technology, and others ________ (call for) a change of lifestyle. ________ (It) Sounds great! 【答案】 they；2. call for；3. It 应用实践 读后-思维提升 小组讨论 1. What makes the Amazon rainforest a "natural treasure" according to the passage? 2. What are the main threats to the Amazon rainforest? How can we protect it? 【答案】 1. ① It plays a key role in maintaining the Earth’s ecosystem balance； ② It has the richest biodiversity (one in ten known species worldwide)； ③ It produces over 20% of the Earth’s oxygen and is a treasure house for food and medicine. 2. Main threats: Human activities such as agriculture and cattle farming. Protection measures: ① Strengthen environmental laws to restrict destructive activities； ② Raise public awareness of rainforest protection； ③ Promote sustainable development in the region； ④ Reduce deforestation. 读后-课堂练习 （一）单项选择 1. The Amazon rainforest, ________ covers 6 million square kilometres, is the largest in the world. A. which B. that C. who D. what 2. ________ the heavy rain, the river has flooded many villages. A. Because B. Due to C. Thanks D. Owing 3. Many species are in danger of extinction ________ the loss of their habitats. A. as B. since C. because of D. for 4. The old tree ________ by the storm has been removed from the park. A. damage B. damaging C. damaged D. to damage 5. —Have you finished reading the passage? —________. A. Yes, I do B. Yes, I have C. No, I don’t D. No, I haven’t read 【答案】 1. A（非限制性定语从句，先行词为雨林，用 which） 2. B（due to 后接名词短语，because 后接从句） 3. C（because of 后接名词短语，表原因） 4. C（过去分词作定语，表被动） 5. B（省略句，完整形式为 Yes, I have finished reading the passage） （二）句子翻译 1. 亚马逊雨林通过产生氧气，为地球注入活力。（breathe life into） 2. 由于人类活动，许多物种正面临灭绝的危险。（due to, in danger of extinction） 3. 分解动植物遗体的微生物在生态系统中起着重要作用。（break down, play a role） 【答案】 1. The Amazon rainforest breathes life into the planet by producing oxygen. 2. Due to human activities, many species are in danger of extinction. 3. The microorganisms that break down the remains of plants and animals play an important role in the ecosystem. （三）Complete the passage with the correct forms of the words and phrases in the box. （harm, survive, biodiversity, break down, due to, in turn, damage, breathe life into） The Amazon rainforest is home to rich ________. However, human activities have ________ this precious ecosystem. ________ irresponsible farming and logging, a large area of the forest has been destroyed. Many species struggle to ________ in the changing environment. The rainforest ________ the planet by fixing carbon and producing oxygen. If it continues to be ________, the global climate will be affected, and ________, human life will face serious risks. Dead plants and animals ________ quickly in the hot and humid climate, returning nutrients to the soil. 【答案】 biodiversity；harmed；Due to；survive；breathes life into；damaged；in turn；break down 总结-语言点 （一）核心词汇 1. survive v. 生存 → survival n. 生存；survivor n. 幸存者 2. damage vt. & n. 损害 → 搭配：do damage to 对…… 造成损害 3. biodiversity n. 生物多样性 → 构词：bio-（生物）+ diversity（多样性） （二）重点短语 1. due to 由于（后接名词 / 代词 / 动名词，作表语或状语） 2. in turn 相应地；转而（强调逻辑上的递进或因果关系） 3. break down 分解；（机器等）出故障；（身体）垮掉 （三）语法聚焦：省略句 1. 定义：为避免重复、使句子简洁，省略语境中明确的成分（主语、谓语、宾语等）。 2. 常见场景：简短回应、并列句、状语从句中（when/if/while 等引导） 自我评价 Evaluation Item Self-score (1-5) Notes Mastery of core words and phrases 是否能准确运用词汇完成练习与表达？ Ability to extract key information 是否能快速找到语篇中的数字、事实等细节？ Understanding of ellipsis 是否能识别并补全省略句？ Participation in group discussion 是否能结合文本发表自己的观点？ Awareness of environmental protection 是否能提出合理的雨林保护建议？ 迁移创新 作业内容 本节课作业二选一，为分层作业，难度有所区别。基础一般的同学可以选择作业一，基础较好的同学可以选择作业二。 作业一（基础层） Write a short passage (80-100 words) introducing the Amazon rainforest, using at least 5 core words or phrases from this lesson. 作业二（提高层） Suppose you are an environmental activist, write a letter to the local government of Amazon regions, calling for the protection of the rainforest. Include the importance of the rainforest and specific protection measures (120-150 words). 【参考范文（作业一）】 The Amazon rainforest is a natural treasure with rich biodiversity. Covering around 6 million square kilometres, it produces over 20% of the Earth’s oxygen, breathing life into the planet. Many rare species survive here, making it a key part of the global ecosystem. However, it is damaged due to human activities. We must take action to protect it, for its survival is closely related to the future of humanity. 【参考范文（作业二）】 Dear Sir/Madam, I am writing to call for urgent action to protect the Amazon rainforest, a natural treasure that maintains the Earth’s ecological balance. The Amazon rainforest is home to one in ten known species worldwide and produces over 20% of the Earth’s oxygen. Unfortunately, about 17% of it has been lost due to human activities like agriculture. To save this precious ecosystem, I suggest stricter laws be made to ban illegal logging and over-farming. Meanwhile, public awareness campaigns should be launched to let people realize the rainforest’s importance. Additionally, supporting sustainable development projects in local communities can reduce destructive activities. Protecting the Amazon is protecting our own future. I hope you will take these suggestions into consideration. Sincerely, Your Name 1 学科网（北京）股份有限公司 $