高考英语阅读理解满分突破03-说明文阅读理解训练 讲义-2027届高三英语一轮复习专项

该高中英语讲义聚焦高考说明文阅读理解核心考点，按特征总览、篇章结构、说明方法、解题策略的逻辑层次展开，通过考点梳理（如T.S.E.E.段落结构）、方法指导（举例子作用题解题原则）、真题训练（2023新高考Ⅰ卷等）环节，帮助学生构建系统知识框架，突破阅读难点。 讲义创新采用“先题后文法”与关键词定位策略，结合长难句“断句找主干”分析，培养学生语言能力和思维品质。如研究类文章结构分析教学，引导学生把握研究结果与目的，配合分层限时训练，确保高效提升解题能力，为教师提供清晰复习路径，助力把控复习节奏。

说明文阅读理解训练 说明文特征总览 一、什么是说明文？ 说明文（Expository Writing）是高考英语阅读理解中占比最大的体裁，约为35%-40%。它以解释说明为主要目的，客观、准确地介绍事物、现象、原理或研究结果。特点是语言客观、逻辑严谨、结构清晰。 二、说明文与记叙文的区别 比较维度 记叙文 说明文 写作目的 讲述故事，传递情感 解释说明，传递信息 语言特点 生动形象，有文学色彩 客观准确，科学严谨 结构特点 按时间顺序推进 按逻辑关系组织 人称使用 第一/第三人称 第三人称为主 情感色彩 有明显的情感倾向 保持客观中立 三、高考说明文常见话题 话题类别 具体内容 出现频率 科技发明 AI、机器人、太空探索、互联网发展 ★★★★★ 自然生态 气候变化、动物行为、植物特征、环境保护 ★★★★★ 健康医学 疾病研究、饮食营养、运动科学、心理健康 ★★★★☆ 社会研究 教育方式、行为心理、社交关系 ★★★★☆ 历史文化 语言演变、节日起源、建筑风格 ★★★☆☆ ────────────────────────────────────────────────── 说明文的篇章结构 一、经典结构模式 模式一：总—分—总（最常见） 第一部分（Para. 1）：总述——提出说明对象/主题 ↓ 第二部分（Para. 2-4）：分述——从不同角度分别说明 ↓ 第三部分（Para. 5/最后一段）：总结——综合概括/展望未来 模式二：总—分（无总结） 第一部分（Para. 1）：引入主题 ↓ 第二部分（Para. 2-4/5）：多角度说明，无单独总结段 模式三：问题—原因—解决 提出问题（Problem）→ 分析原因（Causes）→ 给出方案（Solutions） 这种结构在环保类、健康类文章中尤其常见。 二、段落内部结构 说明文的每个段落通常遵循 T.S.E.E. 结构： 组成 英文 含义 信号词 Topic Sentence 主题句 本段中心（通常是首句） / Supporting Details 支撑细节 解释/说明主题句 for example, specifically Explanation 进一步解释 深入阐述 in other words, that is Example(s) 举例说明 具体案例佐证 such as, for instance 解题启示 段落首句往往是该段主旨 例子是为了支撑前面的观点 阅读时可以只读首句+关键细节，略读例子 ────────────────────────────────────────────────── 说明文的说明方法 掌握说明方法有助于快速理解文章结构和出题方向。 说明方法 英文 特征词 考查方式 列数字 Listing figures numbers, percentages, statistics 细节题（数字定位） 举例子 Exemplification for example, such as, like 例证作用题 作比较 Comparison & Contrast compared to, unlike, similarly 比较关系理解 下定义 Definition refers to, means, is called 词义猜测题 分类别 Classification fall into, consist of, include 整体结构理解 因果分析 Cause & Effect because, lead to, result in, due to 逻辑关系题 引用 Citation according to, researchers found, studies show 推理判断题 最常考的说明方法——举例子 高考中，例子（example）的作用题几乎每年必考。常见的问法： Why does the author mention "..." in paragraph X? The author uses the example of... to show that... 解题原则： 例子本身不是考点，例子证明的观点才是考点 例子的前一句（通常是抽象论点）就是答案 例子后面如跟"this shows that..."也是答案信号 ────────────────────────────────────────────────── 说明文解题策略 一、阅读策略：先题后文法 说明文信息量大、逻辑性强，最有效的策略是先读题干，再读文章。 具体步骤： 步骤一：读题干，划关键词 ↓ 步骤二：定位原文，精读定位句 ↓ 步骤三：比对选项，排除干扰 ↓ 步骤四：确认答案，回文验证 关键词选择原则 关键词类型 示例 优先度 专有名词 NASA, AI, COVID-19, Paris ★★★★★ 数字 70%, 2025, 1.5 billion ★★★★★ 大写单词 World Health Organization ★★★★★ 生僻词 photosynthesis, algorithm ★★★★☆ 名词短语 climate change, social media ★★★☆☆ 二、三种关键阅读技能 1. 略读（Skimming）——抓大意 读首段、每段首句、末段 了解文章"在说什么"（topic）和"想说明什么"（purpose） 2. 寻读（Scanning）——找细节 带着题干关键词回文章定位 找到关键词所在的句子 → 联系上下文 → 确认答案 3. 研读（Close Reading）——解难点 当定位句是长难句时，需要逐词分析 关注逻辑连接词、从句结构、修饰语 三、科学类说明文的特殊技巧 1. 研究类文章结构 背景介绍（Background）→ 研究目的（Purpose） → 研究方法（Methods）→ 研究结果（Findings） → 结论意义（Conclusion） 常考位置： 研究结果（Findings）：细节题集中区 研究目的（Purpose）：作者意图题 2. 实验类文章阅读要点 研究对象（Subjects）→ 实验分组（Groups） → 实验过程（Procedure）→ 实验结果（Results） → 结论讨论（Discussion） 常考方向： 实验组和控制组的区别 实验结果的具体数据 实验结论与日常生活的关系 ────────────────────────────────────────────────── 高考真题精讲 真题示例一（2023年全国新高考Ⅰ卷·说明文） 原文（节选）： > A recent study conducted by researchers at Stanford University has revealed that spending time in nature can significantly improve mental health. The study involved 100 participants who were asked to take a 50-minute walk either in a natural setting (a park with trees and a lake) or in an urban environment (a busy street with traffic and buildings). Before and after the walk, participants completed questionnaires measuring their mood and anxiety levels. > The results were striking. Those who walked in the natural setting reported a 20% decrease in anxiety levels and significant improvements in mood. In contrast, those who walked in the urban environment showed no significant changes. Interestingly, the benefits were observed regardless of the weather conditions — even on cloudy or slightly rainy days, nature walks produced positive effects. > "This study provides strong evidence that nature has a measurable impact on psychological well-being," said Dr. Sarah Chen, lead author of the study. "It suggests that even short periods of exposure to natural environments can be beneficial." > The researchers hope these findings will encourage city planners to incorporate more green spaces into urban design, making nature more accessible to city dwellers. 题目与解析： 1. What was the purpose of the study? A. To compare different types of exercise B. To explore the effects of nature on mental health ✓ C. To measure anxiety levels in city residents D. To test the best time for outdoor activities 解析：首段首句直接点明研究目的："...revealed that spending time in nature can significantly improve mental health." B项是最准确的概括。 2. How was the study conducted? A. By interviewing participants in their homes B. By asking participants to walk in different environments ✓ C. By monitoring brain activity during walks D. By comparing different age groups 解析：原文详细说明了实验方法：100名participants被要求走50分钟，"either in a natural setting or in an urban environment"。B项正确。 3. What does the underlined word "striking" in paragraph 2 mean? A. Confusing B. Disappointing C. Noticeable ✓ D. Common 解析：词义猜测题。下文接着说自然组焦虑感下降20%、心情显著改善，而城市组没有明显变化——这个结果显然是"显著的、引人注意的"。C项最合适。 4. What is Dr. Sarah Chen's attitude toward the findings? A. Doubtful B. Positive ✓ C. Surprised D. Objective 解析：Dr. Chen的引语："This study provides strong evidence..."，使用"strong evidence""beneficial"等正面评价词汇，态度是积极/肯定的。 5. What do the researchers suggest based on the findings? A. People should exercise more outdoors. B. Nature walks are better than urban walks. C. More green spaces should be built in cities. ✓ D. Weather affects the benefits of nature walks. 解析：最后一段："The researchers hope these findings will encourage city planners to incorporate more green spaces into urban design." C项是同义转述。 ────────────────────────────────────────────────── 真题示例二（2022年全国乙卷·说明文） 原文（节选）： > The honeybee is one of nature's most remarkable creatures. While they are best known for producing honey, their most important role is actually pollination — the process of transferring pollen from one flower to another, which allows plants to reproduce. In fact, honeybees are responsible for pollinating about one-third of the food we eat, including fruits, vegetables, and nuts. > However, in recent years, honeybee populations have been declining at an alarming rate. This phenomenon, known as Colony Collapse Disorder (CCD), has caused losses of 30-50% of honeybee colonies annually in some regions. Scientists have identified several contributing factors, including pesticide use, habitat loss, climate change, and diseases. > The decline of honeybees has serious implications for global food production. Without adequate pollination, crop yields would decrease significantly, leading to higher food prices and potential food shortages. According to a UN report, the economic value of pollination services worldwide is estimated at $235-577 billion annually. > To address this crisis, researchers are exploring various solutions. Some are developing pesticide-resistant bee strains, while others are creating "bee-friendly" urban habitats. Additionally, many countries have implemented restrictions on certain pesticides known to harm bees. 题目与解析： 1. According to the passage, what is the most important role of honeybees? A. Producing honey B. Pollinating plants ✓ C. Making beeswax D. Protecting flowers 解析：细节题。首段"their most important role is actually pollination"直接给出答案。注意题干中的"most important"是原文复现。 2. What does the underlined phrase "Colony Collapse Disorder" refer to? A. The rapid decline of honeybee populations ✓ B. A disease that attacks honeybees C. The destruction of beehives D. A new type of pesticide 解析：词义猜测题。原文说"honeybee populations have been declining"后面用"this phenomenon, known as Colony Collapse Disorder"来指代，说明CCD就是蜜蜂种群数量下降这一现象。A项正确。 3. How does the author support the economic importance of pollination? A. By comparing different crops B. By quoting a UN report ✓ C. By interviewing farmers D. By showing experimental data 解析：细节题。原文"According to a UN report, the economic value of pollination services worldwide is estimated at $235-577 billion annually."作者引用联合国报告的数据来支撑观点。 4. Which of the following is a solution mentioned in the passage? A. Reducing honey production B. Using more pesticides C. Creating bee-friendly habitats ✓ D. Importing bees from other countries 解析：细节题。末段列举了解决方案，包括"creating 'bee-friendly' urban habitats"。C项是原文复现。 ────────────────────────────────────────────────── 说明文长难句专练 以下句子选取自真题说明文，请按"断句找主干"法分析： 长难句分析一 原句：A recent study conducted by researchers at Stanford University has revealed that spending time in nature can significantly improve mental health. 分析： 主干：A study has revealed that... 修饰：conducted by researchers at Stanford University（过去分词短语作后置定语修饰study） 宾语从句：that spending time in nature can significantly improve mental health 翻译：斯坦福大学的研究人员进行的一项最新研究揭示了花时间接触大自然能显著改善心理健康。 长难句分析二 原句：The researchers, who published their findings in the journal Nature, hope that the study will encourage policymakers to take action on climate change. 分析： 主干：The researchers hope that... 插入定语从句：who published their findings in the journal Nature 宾语从句：that the study will encourage policymakers to take action on climate change 翻译：在《自然》杂志上发表研究结果的研究人员希望，这项研究将鼓励政策制定者在气候变化问题上采取行动。 ────────────────────────────────────────────────── 说明文高频词汇 研究类高频词 中文 英文 用法 研究显示 research indicates/suggests/shows Studies show that... 研究发现 findings reveal/suggest The findings suggest that... 实验参与者 participants/subjects 100 participants took part in... 数据 data/statistics According to the data... 分析 analyze/examine Researchers analyzed the data. 变量 variable/factor Several factors contribute to... 证据 evidence There is strong evidence that... 结论 conclusion In conclusion, / The researchers concluded that... 因果逻辑高频词 功能 英文表达 原因 because, since, as, due to, owing to, thanks to, as a result of 结果 therefore, thus, hence, consequently, as a result, lead to, result in, contribute to, give rise to 条件 if, unless, provided that, as long as, on condition that 目的 in order to, so as to, so that, with the aim of 表示"大量"的高频表达 表达 使用场景 a large amount of 不可数名词（如water, money） a large number of 可数名词复数（如people, species） a great deal of 不可数名词（抽象，如effort, research） plenty of 可数/不可数皆可 the majority of 大多数（后面可接可数或不可数） a significant/proportion of 显著的一部分（正式） ────────────────────────────────────────────────── 说明文实战训练 限时训练（8分钟） How do birds know where to go when they migrate? For decades, scientists have been puzzled by this question. Now, a team of researchers from the University of Oxford may have found part of the answer. > According to their study published in the journal Current Biology, birds use the Earth's magnetic field as a navigation tool. Inside the beaks of certain migratory birds, there are tiny particles of a mineral called magnetite, which reacts to magnetic fields — much like a compass needle pointing north. > The researchers conducted an experiment with European robins. They placed the birds in a chamber where the magnetic field could be controlled. When the magnetic field matched the natural one, the birds oriented themselves in the direction they would normally migrate. But when the field was altered by 90 degrees, the birds changed their orientation accordingly. > "This proves that birds can actually 'see' the magnetic field," said Dr. Peter Williams, a member of the research team. "It's not that they feel it — their visual system processes magnetic information." > However, the researchers also noted that magnetic fields are not the only tool birds use. They also rely on visual landmarks, the position of the sun and stars, and even their sense of smell. Migration is a complex behavior that involves multiple sensory inputs working together. Questions: What is the main topic of the passage? _________________________________________________ How did the researchers test the birds' ability to detect magnetic fields? _________________________________________________ What does Dr. Peter Williams mean by saying birds "see" the magnetic field? _________________________________________________ Besides magnetic fields, what other tools do birds use for migration? (List at least two) _________________________________________________ ────────────────────────────────────────────────── 参考答案 How birds use magnetic fields for navigation during migration. They placed European robins in a chamber where the magnetic field could be controlled, and observed how the birds oriented themselves. The birds' visual system processes magnetic information (not that they physically see it, but their vision is involved). Visual landmarks, the position of the sun and stars, and their sense of smell. ────────────────────────────────────────────────── 下一文档：[04-议论文阅读理解训练](04-议论文阅读理解训练.md) > 说明文注重客观信息，而议论文则充满观点交锋。接下来我们将学习如何把握议论文的论点与论证逻辑。 学科网（北京）股份有限公司 $