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2026-2027外刊英语汇编阅读
2026-2027高三二轮英语七选五专项
目录
1.Passage 1 酸糖缓解焦虑真的有用吗？
2.Passage 2 全球数据中心面临极端高温考验
3.Passage 3 酷暑天热饮 vs 冷饮，哪种更降温？
4.Passage 4 每晚睡 8 小时才是最佳睡眠？
阅读理解（七选五）
Passage 1
Does Sour Candy Help Relieve Anxiety
A recent social media trend tells people to eat sour candy to ease anxiety and panic attacks. 1._____________ The core logic is simple: strong sour flavors draw your attention away from anxious thoughts and fix it on the powerful feeling on your tongue. Though sour candy cannot cure anxiety completely, it serves as a quick temporary distraction.
2._____________ Whether you take sour candy or citrus fruits, their chemicals touch taste cells inside your mouth. The signal then travels to the gustatory cortex in the brain, the part responsible for recognizing five basic tastes: sweet, salty, bitter, sour and umami. This system helps human beings seek energy-rich ripe food and stay away from unripe or spoiled food.
So how does this connect with our mental state When you keep thinking about worrying things, sour candy acts as a useful grounding skill. 3._____________ Eva Timothy, a professor from Utah State University, suggests holding the sour taste in your mouth as long as possible rather than swallowing it quickly. Pay attention to the lasting flavor and smell to get better calming effects.
4._____________ The famous 5-4-3-2-1 method is a typical example. It asks you to list five things you see, four things you feel, three sounds, two smells and one taste around you. Keeping your mind busy with these sensory tasks will make anxious feelings fade away gradually.
Besides calming emotions, sour food influences the brain in another way. A 2018 study found sour tastes make people more willing to take risks. In the test, participants ate food of different flavors before inflating virtual balloons for rewards. 5._____________ Researchers believe sour food can bring benefits to risk-averse people who easily suffer from anxiety.
选项（7 选 5）
A. But does this widely-shared trick really work for mental health
B. It guides your brain to focus on the present and ignore upsetting feelings.
C. How does sour food create such strong sensory signals inside our bodies
D. Many other grounding skills also rely on the five human senses to reduce stress.
E. Those who tasted sour things chose to pump the balloon more for higher rewards.
F. Sour candy has become the most popular choice among teenagers with heavy study pressure.
G. Experts warn that too much sour food may cause damage to your teeth and stomach.
Passage 2
AI Data Centers Face Extreme Heat Risks
AI data centers have become the backbone of artificial intelligence development, yet they are facing growing threats from global heatwaves and climate risks. 1._____________ Many tech operators have to rethink how to run their facilities safely under extreme weather conditions.
Insurance companies have collected plenty of related statistics. Around one third of financial losses on data center construction are caused by natural disasters such as extreme heat and storms. 2._____________ Cheap land in less-developed areas attracts most new data center projects, but these places usually lack complete weather records and face unexpected tornadoes or heat waves.
Extreme high temperatures create double troubles for power grids and AI facilities. On hot summer days, local residents use more air conditioners, pushing electricity networks to their limits. 3._____________ With insufficient power supply, data centers may suffer sudden power outages and shut down.
Faced with severe climate challenges, leading tech firms are taking practical measures actively. 4._____________ New types of cooling equipment can withstand higher temperatures and cut energy consumption dramatically. Some companies also pick superior locations to stay away from frequent natural disasters.
5._____________ Only by combining advanced technology with scientific site selection can AI infrastructure survive the ever-worsening climate crises in the long run.
选项（7 选 5）
A. Besides, data centers themselves consume huge amounts of electricity for cooling systems.
B. Most old data centers were built without fully taking modern climate shifts into consideration.
C. Many climate experts have warned that intense heat will hold back the expansion of the AI industry.
D. For one thing, they have upgraded the cooling systems within large-scale data centers.
E. Another hidden danger comes from the site selection of newly constructed data centers.
F. Therefore, AI technology will completely solve all climate-related problems in the near future.
G. Climate disasters once regarded as minor issues have turned into major obstacles for AI data centers.
Passage 3
Hot Drinks vs Cold Drinks in Hot Summer
As temperatures climb, watching your fluid intake becomes an important part of getting through the summer months. Our instincts tell us that hot drinks, like tea and hot cocoa, are meant for the cooler fall and winter weeks, while an ice-cold beverage will do a better job of cooling us down during those sweaty summer days. But is that actually true 1._____________
Published in Acta Physiologica, the experiment showed that athletes who consumed hot water could actually lower their body temperature because it triggered a fundamental physiological function that regulates heat: sweating. 2._____________ The 2012 study describes how cyclists were equipped with skin-temperature sensors and a mouthpiece that recorded oxygen and CO concentrations in their breath. All participants underwent the experiment under the same temperature and humidity conditions while being given beverages of different temperatures. The results found that participants who consumed water at 122 degrees Fahrenheit stored less heat in their bodies than cyclists drinking cold water. But these results only matter under one specific condition: a hot, dry environment.
3._____________ Therefore, spending time in humid environments might increase sweating without providing the same cooling effect through evaporation. Biology has equipped us with a remarkable mechanism for cooling down. By excreting a thin layer of liquid onto the skin, our bodies can reduce their temperature as that moisture evaporates. Sweating, although sometimes viewed as unhygienic or something to be avoided, relies on basic principles of thermodynamics to keep us from overheating. 4._____________
Cultures in warm, arid regions have been consuming hot beverages for thousands of years. Drinking tea is common throughout the Middle East, among the desert nomadic tribes of North Africa, and enjoying a cup of hot chai in India. Whether these traditions developed specifically to regulate body temperature is debatable, as hot beverages were often prepared mostly for sanitation purposes as well, but they certainly did not make the heat any worse. In the age of refrigeration, it is logical to reach for cool beverages when trying to refresh ourselves during hot weather. Yet access to this technology is a very recent development in human history, and communities thrived in virtually every climate zone on Earth for millennia before it became available.
Does that mean a cold drink does the opposite Interestingly, when we drink ice-cold beverages, our bodies must expend energy warming the liquid to body temperature, which technically burns calories. But that does not mean it raises our core temperature. What matters most during warm weather is keeping up with your recommended daily fluid intake. 5._____________
选项（7 选 5）
A. However, the study also showed that the cooling effect of hot drinks only works under specific environmental conditions.
B. A research team from the University of Ottawa carried out a cycling experiment to test this common belief.
C. The extra sweat brought by hot drinks can only evaporate efficiently when the air humidity is low.
D. However, extensive sweating can deplete the body of fluids, making proper hydration necessary in hot weather or exercise.
E. According to CDC, enough water intake is the key to avoiding heat illnesses, and plain water works best.
F. Hot drinks are widely believed to be unhealthy for people living in high-temperature areas all year round.
G. Cold drinks can quickly bring immediate comfort and are totally free of hidden downsides for human bodies.
Passage 4
How Many Hours of Sleep Is Actually Best for Us
“Eight hours labour, eight hours recreation, eight hours rest,” said Robert Owen, a Welsh textile-maker, in 1817. His aim was a fairer work week, but the idea that sleeping eight hours a night is best has since become the received wisdom. Is it right 1._____________ Not getting enough kip can certainly be a problem. A bad night’s sleep can lead to a drop in cognitive abilities, increased stress and general grumpiness the following day. Chronic sleep deprivation is associated with cognitive decline, psychiatric disorders and even an early death. But too much sleep may also be bad for you. The evidence suggests a U-shaped relationship between health and sleep duration, with both insufficient and excessive slumber being worse than an optimal middle range.
2._____________ The first, published in Sleep Health, assessed 575 studies published between 2004 and 2014. For those aged 18-64, the recommended amount was between seven and nine hours a night, but that fell to just seven or eight hours for those over 65. The second, published in Sleep, analysed 311 studies. It concluded that around seven hours of shut-eye was the best target, but noted uncertainty about the negative effects of regularly sleeping longer than nine hours.
A more recent study, published in Nature on May 13th, refined these estimates by studying the effects of sleep duration on specific parts of the body. Its authors used the idea of “biological clocks”, which try to work out whether a person’s physiology is in better or worse nick than their chronological age would suggest. The researchers applied the concept to individual organs. 3._____________ Someone sporty might have muscles that look younger than their years.
Dr Wen and his team tracked the relationship between sleep duration and 23 different biological clocks across 500,000 adults (much of the data came from the UK BioBank, a big database). They found the U-shaped pattern across nine body systems, including the brain, lungs, liver and skin. 4._____________
Those struggling to get a full night’s rest should not despair. Applying population-level results to individual lives is tricky, for one thing. For another, disentangling cause and effect is not easy. Are some organs prematurely aged because their owners sleep too little Or is some other factor causing both the ageing and the lack of sleep Besides, says Michael Grandner, a psychiatrist at the University of Arizona, duration is just one measure. Quality, regularity and continuity of sleep matter, too. 5._____________ That looks like sage advice. One irony of sleep is that worrying about it can make things worse.
选项（7 选 5）
A. In 2015 two big studies tried to work out exactly where that healthy sleep range lies.
B. For example, a person with brain disease may have a higher “brain age” than their real age.
C. Their research shows different ideal sleep lengths for men and women respectively.
D. Many people believe eight hours of sleep every night guarantees perfect physical health.
E. Dr Grandner suggests people not worry too much about a fixed sleep number.
F. Long sleep hours are proven to bring more health risks than short sleep hours for all ages.
G. Biological clocks can only judge one’s mental state rather than physical organs.
统一参考答案汇总
Passage 1
1.A 2.C 3.B 4.D 5.E
Passage 2
1.G 2.E 3.A 4.D 5.C
Passage 3
1.B 2.A 3.C 4.D 5.E
Passage 4
1.D 2.A 3.B 4.C 5.E
分篇完整详细解析
Passage 1 解析
1.A 过渡句。前文提出网红酸糖缓解焦虑的潮流，后文解释背后原理，设空处抛出疑问承上启下，逻辑匹配。
2.C 段首主旨句。本段全程介绍酸味食物刺激味觉皮层、人体味觉工作机制，C 选项提问酸味如何产生感官信号，统领整段。
3.B 段中承上句。前一句提到酸糖是接地技巧，B 句解释该技巧的作用原理：聚焦当下、转移负面情绪，衔接紧密。
4.D 段首过渡句。上文只讲酸味糖果这一种感官减压法，本段引出 5-4-3-2-1 五感练习，D 句说明还有其他同类接地技巧，自然转折。
5.E 段尾细节匹配。前文介绍气球风险实验，E 句点明摄入酸味的受试者更愿意充气冒险，对应实验结论，收尾本段。
Passage 2 解析
1.G 过渡主旨句。前文点明数据中心受全球热浪、气候风险威胁，后文讲运营商不得不重新规划极端天气下的运维方案。G 句承接上文，说明曾经不起眼的气候灾害如今已成数据中心发展的巨大阻碍，起到承上启下总起全文矛盾的作用。
2.E 段落过渡句。本段先列举自然灾害造成大量经济损失，空格后整段讲述新建数据中心选址偏爱低价荒地，却存在气象隐患。E 选项 “另一重隐患来自新建数据中心的选址” 完美引出下文选址问题，逻辑衔接紧密。
3.A 逻辑递进句。前文讲高温天气居民空调用电激增，电网负荷拉满；A 选项 Besides 表递进，补充说明数据中心自身制冷系统也会消耗巨量电力，双重用电压力共同导致后文 “供电不足、机房断电” 的恶果，形成完整因果链。
4.D 分论点总起句。前文总说科技企业主动采取应对措施，后文分别介绍新型制冷设备、优化选址两种方案。D 选项 For one thing（一方面）对应后文两层举措，先点明企业升级制冷系统，贴合后文冷却设备相关内容。
5.C 文末总结升华句。空格后强调必须结合技术与科学选址才能长期应对气候危机，侧面说明高温带来巨大发展阻碍。C 句专家警示高温会阻碍 AI 行业扩张，总结前文所有高温带来的各类风险，引出后文解决办法的必要性。
Passage 3 解析
1.B 过渡设问承接句。前文抛出大众固有认知并提出疑问：冷饮真的更解暑吗？B 选项引出渥太华大学研究团队开展骑行实验验证该观点，自然开启下文实验介绍，完美承上启下。
2.A 段落内部逻辑转折句。前一句点明热水能降温的原理是促进出汗，A 选项用 However 转折，指出该降温效果仅在特定环境生效，和后文 “炎热干燥环境” 的实验限定条件紧密呼应，逻辑连贯。
3.C 段首主旨句。后文 Therefore 引出潮湿环境汗液难蒸发、降温失效的结论，C 选项先点明热饮产生的大量汗液仅在低湿度下才能高效蒸发，是后半句结论的前置原因，构成完整因果逻辑链。
4.D 递进补充句。前文讲解出汗是人体天然降温机制，D 选项转折补充：大量出汗会流失体内水分，高温、运动时补水必不可少，拓展出汗的另一面影响，完善本段生理知识论述。
5.E 收尾细节呼应句。前一句强调高温天气足量补水是核心，E 选项引用疾控中心观点，说明充足饮水可预防高温疾病、白开水是最优选择，紧扣本段结尾补水核心话题，收束全文。
Passage 4 解析
1.D 承接设问过渡句。前文提出大众普遍认同 “8 小时睡眠最优” 并抛出疑问 “这一观点正确吗？”，D 选项重申大众普遍认知，自然衔接后文分别论述睡眠不足、睡眠过量的双重危害，形成完整逻辑转折。
2.A 段落主旨总起句。本段完整介绍 2015 年两项大型睡眠研究的内容与结论，A 选项点明 2015 年两项研究旨在精准界定健康睡眠区间，统领整段内容，完美引出下文两项研究的细节。
3.B 举例衔接句。前文提出研究将生物时钟概念应用于单个器官，后文以运动人群肌肉状态为例，B 选项用 For example 引出脑部病变人群大脑年龄偏高的实例，前后两个例子呼应，贴合段落论证逻辑。
4.C 段落收尾总结句。本段介绍温博士团队的大规模样本实验，结尾给出男女差异化最佳睡眠时长数据，C 选项概括研究结论：男女分别拥有不同理想睡眠时长，收束本段实验成果。
5.E 人物观点承接句。前文引用精神病学家 Michael Grandner 的观点，指出睡眠时长只是单一指标，睡眠质量、规律度同样重要，E 选项转述其核心建议：不必纠结固定睡眠数字，与后文 “That looks like sage advice” 完美衔接。

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