外刊阅读导学案-2026届高三英语一轮复习专项

该高中英语高考复习学案系统整合了科普类文本阅读、核心短语及语法填空考点，依据“提出问题—分析危害—解决措施”的逻辑链构建知识网络，通过问题导向任务（如危害机理分析）和短语梳理活动，引导学生自主整合词汇、语法与语篇结构，形成完整的语言知识体系。 亮点在于诊断性真题演练与思维品质培养，如嵌入高考语法填空题（含介词搭配、非谓语动词等考点）供学生自测，结合文本结构思维导图绘制任务，提升逻辑分析能力。配套重点短语情景应用练习和错题归因表，助力学生自主诊断薄弱环节，教师可通过学情数据实施分层指导，有效培养语言能力与自主学习素养。

Saving Room for a Big Thanksgiving Dinner Can Be Bad for Gut Health 为一顿丰盛的感恩节大餐 “留胃”？当心损害肠道健康 作者：Melinda Wenner Moyer（梅林达・温纳・莫耶）| 发布时间：2025 年 11 月 25 日 英文原文 Skipping meals不吃饭 to “save room” for为...留下空间 a holiday feast节日盛宴 might seem like a smart way to avoid overeating, but gut health experts warn that this common practice常见做法 can disrupt microbiome balance肠道菌群平衡, slow metabolism, and amplify加剧 post-meal blood sugar餐后血糖 spikes激增. The combination of extended持续的 fasting禁食 followed by heavy overeating creates a “metabolic shock代谢冲击” that strains给..加重负担 the digestive system消化系统 and may trigger引发 long-term inflammation炎症, they say. 中文译文 为了能尽情享用节日盛宴而刻意不吃饭，这看似是避免暴饮暴食的妙招，但肠道健康专家提醒，这种常见做法会破坏肠道菌群平衡、减缓新陈代谢，还会加剧餐后血糖飙升。专家表示，长时间空腹后再大量进食，会给消化系统带来 “代谢冲击”，进而可能引发长期炎症。 英文原文 “Fasting for 8–12 hours before a large meal can weaken削弱 the gut barrier, allowing undigested food particles颗粒 and bacteria to leak into渗入 the bloodstream血管—a process linked to chronic inflammation慢性炎症and autoimmune conditions自身免疫性疾病,” explains Dr. Sarah Lee, a gastroenterologist at NYU Langone Health. When the gut barrier is compromised折中；让步 ；受损, the body’s immune system responds by releasing pro-inflammatory cytokines促炎细胞因子, which can worsen symptoms加重症状 of irritable bowel syndrome (IBS) and even increase the risk of insulin resistance胰岛素抵抗 over time. 中文译文 “在大餐前空腹 8 至 12 小时，会削弱肠道屏障功能，导致未被消化的食物颗粒和细菌渗入血液 —— 这一过程与慢性炎症及自身免疫性疾病密切相关。” 纽约大学朗格尼医学中心的肠胃病学家萨拉・李博士解释道。当肠道屏障受损时，人体免疫系统会释放促炎细胞因子，这会加重肠易激综合征的症状，久而久之甚至会增加胰岛素抵抗（血糖高）的风险。 英文原文 Metabolism also takes a hit受到影响. Research published in the American Journal of Clinical Nutrition found that skipping meals reduces resting metabolic rate静息代谢率 by 5–8% within 24 hours, as因为 the body conserves energy节约能量 in response to perceived “starvation.” This slowdown代谢放缓 makes it harder to burn calories post-feast and may contribute to导致 weight gain over repeated holiday seasons. Additionally, fasting increases the body’s sensitivity to carbohydrates碳水化合物: a 2024 study in Cell Metabolism showed that people who skipped breakfast before就 a high-carb高碳水 meal had 32% higher blood sugar levels afterward compared to those who ate a small morning meal. 中文译文 新陈代谢也会因此受到负面影响。发表在《美国临床营养学杂志》上的一项研究发现，在 24 小时内不进食，人体的静息代谢率会下降 5% 至 8%，因为身体会将这种状态视为 “饥饿期”，进而启动能量节约模式。这种代谢放缓会导致大餐后热量更难消耗，长此以往，每逢节假日都这样做，可能会造成体重增加。此外，空腹还会提高人体对碳水化合物的敏感度：《细胞 — 新陈代谢》杂志 2024 年的一项研究显示，与早餐正常进食的人相比，不吃早餐就摄入高碳水食物的人，餐后血糖水平会高出 32%。 英文原文 The gut microbiome肠道菌群, which plays a key role in digestion and immune function, is particularly vulnerable脆弱的. “Prolonged 长期的fasting禁食 disrupts the balance of beneficial bacteria like Bifidobacterium and Lactobacillus双歧杆菌和乳酸菌, which rely on steady nutrient intake to thrive,” says Dr. Mark Davis, director of the Gut Health Institute at Columbia University. When these bacteria are depleted,不足的 harmful microbes like Clostridium difficile can multiply大量繁殖, leading to bloating腹胀, gas, and diarrhea胀气和腹泻. Overeating after fasting exacerbates 使恶化this imbalance by flooding the gut with more nutrients than it can process, feeding pathogenic bacteria and further reducing microbial diversity. 中文译文 在消化和免疫功能中扮演关键角色的肠道菌群，受这种饮食习惯的影响尤为显著。“有益菌群，如双歧杆菌和乳酸菌，需要稳定的营养供给才能繁殖生长，而长时间空腹会打破它们的生存平衡。” 哥伦比亚大学肠道健康研究所所长马克・戴维斯博士指出。当这些有益菌数量减少时，艰难梭菌等有害微生物就会趁势大量繁殖，引发腹胀、胀气和腹泻等不适症状。空腹后的暴饮暴食会让肠道突然涌入超出其处理能力的营养物质，这不仅会为致病菌提供养分，还会进一步降低肠道菌群的多样性，让菌群失衡的状况雪上加霜。 原文：So what’s the solution? Experts recommend a “pre-feast strategy餐前准备策略” to stabilize 稳定hunger and protect gut health: 1.Eat a small, fiber-rich高纤维 snack 2–3 hours before the main meal (e.g., a handful of 一把almonds, carrot sticks with hummus, or a small bowl of oatmeal燕麦粥). Fiber slows digestion and keeps you full without overloading calories. 2.Stay hydrated: Drink 8–12 ounces of water before eating to reduce overeating and support gut motility. 3.Avoid sugary or caffeinated drinks, which can increase blood sugar swings增加血糖波动 and dehydrate the body使身体脱水. 4.Practice mindful eating: Chew slowly, pause between bites, and stop at 80% fullness to avoid discomfort and indigestion.消化不良 中文译文 那么，怎样做才是正确的呢？专家推荐了一套 “餐前准备策略”，既能稳定食欲，又能保护肠道健康： 1.正餐前 2 至 3 小时，吃一份少量的高纤维零食（例如一把杏仁、配鹰嘴豆泥的胡萝卜条，或是一小碗燕麦粥）。膳食纤维能减缓消化速度，让你产生饱腹感，同时又不会摄入过多热量。 2.保持水分充足：饭前饮用 230 至 350 毫升水，既能减少暴饮暴食的概率，又能促进肠道蠕动。 3.避免饮用含糖饮料或含咖啡因的饮品，这类饮品会加剧血糖波动，还可能导致身体脱水。 4.养成正念进食的习惯：细嚼慢咽，在两口之间稍作停顿，吃到八分饱就停下，这样可以避免肠胃不适和消化不良。 原文：“Thanksgiving should be about enjoyment, not deprivation or guilt,” Lee adds. “By eating regularly规律饮食 and supporting呵护 your gut, you can savor v 尽情享受the meal without sacrificing 牺牲your health.” 中文译文 “感恩节的意义在于享受美食，而非刻意节食或事后内疚。” 李博士补充道，“只要规律进食、呵护肠道，你就能在享受美餐的同时，不损害身体健康。” 【重点短语】（30 个） save room for 为…… 留空间 skip meals 不吃饭，跳过一餐 holiday feast 节日盛宴 avoid overeating 避免暴饮暴食 common practice 常见做法 disrupt microbiome balance 破坏肠道菌群平衡 slow metabolism 减缓新陈代谢 amplify post-meal blood sugar spikes 加剧餐后血糖飙升 extended fasting 长时间空腹 heavy overeating 大量进食 metabolic shock 代谢冲击 strain the digestive system 给消化系统加重负担 trigger long-term inflammation 引发长期炎症 weaken the gut barrier 削弱肠道屏障功能 leak into the bloodstream 渗入血液 chronic inflammation 慢性炎症 autoimmune conditions 自身免疫性疾病 release pro-inflammatory cytokine释放促炎细胞因子 worsen symptoms 加重症状 irritable bowel syndrome (IBS) 肠易激综合征 insulin resistance 胰岛素抵抗 take a hit 受到负面影响 resting metabolic rate 静息代谢率 conserve energy 节约能量 contribute to weight gain 导致体重增加 high-carb meal 高碳水食物 play a key role in 在…… 中扮演关键角色 steady nutrient intake 稳定的营养供给 multiply in large numbers 大量繁殖 pre-feast strategy 餐前准备策略 【文本结构】 本文为科普说明文，采用 “提出问题 — 分析问题 — 解决问题 — 总结观点” 的逻辑结构，层次清晰： 引出误区（第 1 段）开篇点题，指出 “为大餐留胃而刻意不吃饭” 的常见做法看似合理，实则损害肠道健康，总述其三大危害：破坏菌群平衡、减缓代谢、加剧血糖飙升。 深度分析危害（第 2-4 段） 第 2 段：从生理机制切入，阐述空腹削弱肠道屏障，引发慢性炎症和自身免疫性疾病的原理。 第 3 段：结合科研数据，说明该行为对新陈代谢和血糖的负面影响。 第 4 段：聚焦肠道菌群，分析空腹和暴饮暴食如何打破有益菌与有害菌的平衡，引发肠胃不适。 给出解决方案（第 5 段）针对前文提出的问题，专家给出四条具体的 “餐前准备策略”，涵盖饮食、饮水、饮品选择和进食习惯四个维度，实用性强。 总结升华（第 6 段）引用专家观点，强调节日饮食的核心是 “享受” 而非 “克制”，呼吁通过规律饮食呵护肠道健康，实现美食与健康的平衡。 【高考试题链接】 Saving Room for a Big Thanksgiving Dinner Can Be Bad for Gut HealthSkipping meals to "save room" 1.____ a holiday feast might seem like a smart way to avoid overeating, but gut health experts warn that this common practice can disrupt microbiome balance and amplify post-meal blood sugar spikes.The combination of extended fasting followed by heavy overeating creates a "metabolic shock" 2.____ strains the digestive system and may trigger long-term inflammation. Dr. Sarah Lee explains that fasting for 8–12 hours before a large meal weakens the gut barrier, allowing undigested food particles 3.____ (leak) into the bloodstream, a process linked to chronic inflammation. When the gut barrier is compromised, the body's immune system responds by releasing pro-inflammatory cytokines, 4.____ can worsen symptoms of some diseases. Additionally, fasting increases the body's sensitivity 5.____ carbohydrates. A 2024 study showed that people who skipped breakfast had 32% higher blood sugar levels than 6.____ who ate a small morning meal. 7.____ (solve) this problem, experts suggest a pre-feast strategy. Eat a small, fiber-rich snack 2–3 hours before the main meal. Fiber slows digestion and keeps you full without 8.____ (overload) calories. Avoid sugary drinks, 9.____ can increase blood sugar swings. Practice mindful eating: chew slowly and stop at 80% fullness. Thanksgiving should be about enjoyment, not deprivation. By eating regularly, you can savor the meal without 10.____ (sacrifice) your health. 答案 1for 2that/which 3to leak 4which 5to 6those 7To solve 8overloading 9which 10sacrificing 学科网（北京）股份有限公司 $