中心句是承载全文主旨或段落核心的关键句，是解题的“捷径钥匙”。全文中心句多出现于首段首/尾句、尾段总结句；段落中心句优先看段首、段尾，若段中有but/however/this等转折/总结词，其后往往是中心句。解题时先定位中心句，直接通过中心句提炼答案，避免被细节信息干扰。

真题示例（2023新课标I卷D篇32题：考查段落大意）

On March 7, 1907, the English statistician Francis Galton published a paper which illustrated what has come to be known as the “wisdom of crowds” effect. The experiment of estimation he conducted showed that in some cases, the average of a large number of independent estimates could be quite accurate.

This effect capitalizes on the fact that when people make errors, those errors aren’t always the same. Some people will tend to overestimate, and some to underestimate. When enough of these errors are averaged together, they cancel each other out, resulting in a more accurate estimate. If people are similar and tend to make the same errors, then their errors won’t cancel each other out. In more technical terms, the wisdom of crowds requires that people’s estimates be independent. If for whatever reasons, people’s errors become correlated or dependent, the accuracy of the estimate will go down.

But a new study led by Joaquin Navajas offered an interesting twist(转折) on this classic phenomenon. The key finding of the study was that when crowds were further divided into smaller groups that were allowed to have a discussion, the averages from these groups were more accurate than those from an equal number of independent individuals. For instance, the average obtained from the estimates of four discussion groups of five was significantly more accurate than the average obtained from 20 independent individuals.

In a follow-up study with 100 university students, the researchers tried to get a better sense of what the group members actually did in their discussion. Did they tend to go with those most confident about their estimates? Did they follow those least willing to change their minds? This happened some of the time, but it wasn’t the dominant response. Most frequently, the groups reported that they “shared arguments and reasoned together.” Somehow, these arguments and reasoning resulted in a global reduction in error. Although the studies led by Navajas have limitations and many questions remain the potential implications for group discussion and decision-making are enormous.

32. What is paragraph 2 of the text mainly about?

A. The methods of estimation.B. The underlying logic of the effect.

C. The causes of people’s errors.D. The design of Galton’s experiment.

【分析】题干问第二段主要内容，该段首句“This effect capitalizes on the fact that when people make errors, those errors aren’t always the same.”为段落中心句，核心围绕“群体智慧效应的底层逻辑”展开，后续内容均是对该逻辑的具体解释（高估/低估误差相互抵消、独立性是关键）。因此答案选B（The underlying logic of the effect.），直接对应中心句核心。

二、无显式中心句，自主概括主旨

若文章为夹叙夹议文、说明性散文，或段落采用散点论述/举例论证方式，无明显的中心句，需采用“逐段概括+串联核心”的方法。先用1-2句中文简要概括每段的核心内容，再将各段含义整合，提炼出贯穿全文的核心话题+作者观点/文章主旨，避免遗漏关键段落的信息。

真题示例（2023全国II卷B篇27题：考查文章标题）

Turning soil pulling weeds, and harvesting cabbage sound like tough work for middle and high school kids. And at first it is, says Abby Jaramillo, who with another teacher started Urban Sprouts, a school garden program at four low-income schools. The program aims to help students develop science skills, environmental awareness, and healthy lifestyles.

Jaramillo’s students live in neighborhoods where fresh food and green space are not easy to find and fast food restaurants outnumber grocery stores. “The kids literally come to school with bags of snacks and large bottles of soft drinks,” she says. “They come to us thinking vegetables are awful, dirt is awful, insects are awful.” Though some are initially scared of the insects and turned off by the dirt, most are eager to try something new.

Urban Sprouts’ classes, at two middle schools and two high schools, include hands-on experiments such as soil testing, flower-and-seed dissection, tastings of fresh or dried produce, and work in the garden. Several times a year, students cook the vegetables they grow, and they occasionally make salads for their entire schools.

Program evaluations show that kids eat more vegetables as a result of the classes. “We have students who say they went home and talked to their parents and now they’re eating differently,” Jaramillo says.

She adds that the program’s benefits go beyond nutrition. Some students get so interested in gardening that they bring home seeds to start their own vegetable gardens. Besides, working in the garden seems to have a calming effect on Jaramillo’s special education students, many of whom have emotional control issues. “They get outside,” she says, “and they feel successful.”

27. What can be a suitable title for the text?

A. Rescuing School GardensB. Experiencing Country Life

C. Growing Vegetable LoversD. Changing Local Landscape

【分析】本文无明确的全文中心句，逐段概括核心：

第1段：介绍Urban Sprouts校园花园项目，旨在培养学生科学能力、环保意识和健康生活方式；

第2段：学生生活环境缺乏新鲜食物，初期对蔬菜/泥土/昆虫持排斥态度；

第3段：项目包含土壤测试、花园劳作、烹饪自种蔬菜等实践活动；

第4段：项目成效——学生吃更多蔬菜，甚至影响家人饮食；

第5段：项目额外价值——激发学生园艺兴趣，对特殊教育学生有情绪安抚作用。

串联后核心为“校园花园项目通过实践让学生从排斥蔬菜变为接受甚至喜爱蔬菜，同时带来多重益处”，因此答案选C（Growing Vegetable Lovers），精准匹配全文概括的核心。

三、剖析文章结构，厘清段落联系

高考阅读理解文章多为总-分、总-分-总、分-总、核心段+支撑段四种结构，解题时先快速判断文章结构，找准全文最重要的核心段（多为提出核心观点/核心问题/核心现象的段落），再分析其他段落是通过举例、解释、对比、延伸等方式为核心段服务。抓住核心段的核心内容，即可快速把握文章主旨，减少无效信息的干扰。

真题示例（2025年新课标I卷C篇31题）

While safety improvements might have been made to our streets in recent years, transport studies also show declines in pedestrian(行人) mobility, especially among young children. Many parents say there's too much traffic on the roads for their children to walk safely to school, so they pack them into the car instead.

Dutch authors Thalia Verkade and Marco te Brömmelstroet are bothered by facts like these. In their new book Movement: How to Take Back Our Streets and Transform Our Lives, they call for a rethink of our streets and the role they play in our lives.

Life on city streets started to change decades ago. Whole neighbourhoods were destroyed to make way for new road networks and kids had to play elsewhere. Some communities fought back. Most famously, a Canadian journalist who had moved her family to Manhattan in the early 1950s led a campaign to stop the destruction of her local park. Describing her alarm at its proposed replacement with an expressway, Jane Jacobs called on her mayor(市长) to champion “New York as a decent place to live, and not just rush through.” Similar campaigns occurred in Australia in the late 1960s and 1970s as well.

Although these campaigns were widespread, the reality is that the majority of the western cities were completely redesigned around the needs of the motor car. The number of cars on roads has been increasing rapidly. In Australia we now have over twenty million cars for just over twenty - six million people, among the highest rate of car ownership in the world.

We invest a lot in roads that help us rush through, but we fail to account for the true costs. Do we really recognise what it costs us as a society when children can't move safely around our communities? The authors of Movement have it right: it's time to think differently about that street outside your front door.

31. What can be a suitable title for the text?A. Why the Rush?B. What's Next?C. Where to Stay?D. Who to Blame?

【分析】分析文章结构，确定最重要段落：

首段提出问题“行人流动性下降，孩子无法安全步行上学”；

第2段引入作者观点“呼吁重新思考街道的作用”；

第3、4段分析原因“城市围绕汽车设计，汽车保有量激增”；

第5段为全文最重要段落，提出核心观点“我们过度投入道路追求‘快速通行’，却忽视了真正的成本，需要重新思考街道的意义”；

A为正确答案，也遵循标题覆盖全文原则：选项B“接下来会怎样？”，原文无未来展望；C“该停留在哪里？”，与核心话题无关；D“该责怪谁？”，原文未追究责任；A“为何要匆匆忙忙？”，以反问形式契合全文“反思过度追求快速通行的问题”的核心，覆盖全文内容。

四、归纳微观语篇元素，提炼文章关键词

文章中重复出现的单词/词组、同义替换表达、主题相关词，是贯穿全文的核心话题标志，也是主旨/标题题的“黄金线索”。解题时边读边勾画这些微观语篇要素，正确答案大概率包含核心关键词；若某选项完全未提及核心关键词，可直接排除，大幅提高解题效率。

真题示例（2025年全国II卷C篇31题）

When Sonja Detrinidad opened her online shop selling houseplants, she didn’t have high hopes for it. But the opposite happened: She was flooded, shipping out 1,200 orders in June of 2020 alone. In the past year, Detrinidad sent out more than 70,000 plants. Her success is just one example of increased time at home leading to an explosion in the houseplant industry.

“Plants are in fashion right now,” says Dr. Melinda Knuth, a researcher from the University of Florida. “People who live in plant-rich environments report a higher life satisfaction rating, ” she says. “Adding more nature to our environment can change our mood and how we think.” Plants can improve our state of mind in a few ways but the biggest is by decreasing our level of cortisol, the stress hormone (激素) in our body.

“Students who are around plants perform better academically than students who are in a classroom without plants,” says Knuth. “This productivity also translates into the workplace for adults. Our study showed that there was a 30% decrease in sick leave for people who were in plant-rich workplaces.”

If you’re among the groups of people who are enjoying the mental and physical health benefits of surrounding yourself with plants, don’t beat yourself up if one (or a few!) doesn’t make it. “Doctors practice medicine and lawyers practice law and you should allow yourself the practice it takes to sustain a plant. Tending to plants is an exercise in patience and learning. Be invested in taking care of it, but if it dies, go get another one,” Detrinidad says.

31. What can be a suitable title for the text?

A. Time to Replace HouseplantsB. Plants Boost Your Mood

C. Tips on Choosing HouseplantsD. Plants Brighten Your Home

【分析】关注微观语篇要素：`higher life satisfaction`（更高的生活满意度）、`change our mood`（改变情绪）、`decreasing our level of cortisol`（降低压力激素）、`perform better academically`（学业表现更好）、`30% decrease in sick leave`（病假减少30%），均为“植物对身心的积极影响，核心聚焦情绪和状态改善”，因此答案为B。

五、全覆盖文章内容，避免局部信息

拟定标题或概括全文主旨时，答案需覆盖全文核心话题+各段关键维度，满足“全面性+针对性”，既不能仅聚焦首段、尾段，也不能只围绕某一个细节段落展开。解题时可采用“选项反向验证法”：若某选项仅涉及文章局部内容、未提及核心话题，或过度延伸文章未提及的含义，均可直接排除。

真题示例（2025年1月浙江C 31题：考查文章标题）

A novel design approach to gardening has been gaining in popularity worldwide. Referred to as matrix planting, this approach aims for nature to do a lot more of the heavy lifting in the garden, and even some of the designing. Eschewing fertilizers(化肥) and power tools, it’s based on an elegantly simple principle: to garden more like nature does.

The concept was born when German city planners sought to plant large areas of parkland after World War II in a reproducible way that would need minimal maintenance. Planners created planting mixes that could be used modularly (模块化). In a matrix garden, plants with similar cultural needs are grouped so that they will grow together above and below ground, forming a cooperative ecosystem that conserves water and discourages weeds.

Dutch plantsman and designer Piet Oudolf’s gardens popularized this style, adding artistic flavors to the planting mixes while playing with color and form, including four-season interest and serving the needs of wildlife. Beautiful year-round, they invite you to enjoy the smallest detail, from the sound of grasses in the gentle wind to the sculpture of odd-looking seed heads.

It takes a lot of thought to look this natural. While matrix gardens appear wild, they are carefully planned, with cultural needs the first consideration. Led by the concept of “right plant, right place,” they match plants that enjoy the same soil, sun and weather conditions, and arrange them according to their patterns of growth.

The benefits are substantial for both gardener and planet. With human inputs dramatically reduced, the garden’s ecology can develop well. Established matrix gardens should not need the life support we give most gardens: fertilizer, dividing, regular watering. Compared to traditional garden plots, they increase carbon absorption, reduce stormwater runoff and boost habitat and biodiversity significantly.

31. Which of the following can be a suitable title for the text?

A. The future of gardening is WILDB. Nature treats all lives as EQUALS

C. Matrix gardens need more CARED. Old garden plots work WONDERS

【分析】正确答案A，遵循标题覆盖全文原则：选项B“自然平等对待所有生命”，原文未提及；C“矩阵花园需要更多呵护”，与第五段“human inputs dramatically reduced（人力投入大幅减少）”相悖；D“老式花园地块创造奇迹”，原文重点为“矩阵种植”，而非老式花园；A“园艺的未来是野生化的”，精准契合全文“矩阵种植模仿自然、看似野生，是园艺发展趋势”的核心，为正确答案。