2024年6月英语四级真题第1套 Part Ⅲ Section C (2)
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2024年6月英语四级真题第1套 Part Ⅲ Section C (2)

说明文 · 阅读理解(四选一) · 真题文章逐层精读

本文节选自网站www.popsci.com 2021 年 3 月 9 日发布的一篇文章。

本页是 2024年6月英语四级真题第1套 Part Ⅲ Section C (2) 文章的精读视角页——这篇说明文全文 350 词、6 段,CEFR 难度 C1(C1 级在英语四级文章中占 32%),作者立场为「积极支持」;英文原文之外,本篇已有的 11 项精读维度逐项展开,其中能迁移到其他英语四级真题文章的判断方法(篇章结构、修辞、言外之意、作者态度、体裁速判)随各维度一并讲透。

精读最佳实践

本页解析里的段号(P1)都可以点——点一下,原文在顶部翻开并定位到该段,解析引用的原文同步标亮;合上原文,你还停在刚才读到的位置。点 P1 试试。

PASSAGE · 文章原文

6 段英文原文

以下为2024年6月英语四级真题第1套 Part Ⅲ Section C (2) 的阅读理解(四选一)原文,共 6 段。左侧 P1–P6 是段落编号——本页全部解析(结构、逐段、修辞、自检题)都以它为坐标回指原文,点击解析里的段号,原文即在顶部翻开并定位到该段、引用的原文同步标亮;合上原文仍停在当前阅读位置。原文保持卷面形态,不带翻译与标注。

Some people have said aging is more a slide into forgetfulness than a journey towards wisdom. However, a growing body of research suggests that late-in-life learning is possible. In reality, education does an aging brain good.

Throughout life, people's brains constantly renovate themselves. In the late 1960s, British brain scientist Geoffrey Raisman spied growth in damaged brain regions of rats through an electron microscope; their brains were forging new connections. This meant brains may change every time a person learns something new.

Of course, that doesn't mean the brain isn't affected by the effects of time. Just as height usually declines over the years, so does brain volume: Humans lose about 4 percent every decade starting in their 40s. But that reduction doesn't necessarily make people think slower; as long as we are alive and functioning, we can alter our brains with new information and experiences.

In fact, scientists now suspect accumulating novel experiences, facts, and skills can keep people's minds more flexible. New pathways can strengthen our ever-changing mental structure, even as the brain shrinks.

Conventional fixes like word puzzles and brain-training apps can contribute to mental durability. Even something as simple as taking a different route to the grocery store or going somewhere new on vacation can keep the brain healthy.

A desire for new life challenges can further boost brainpower. Research about aging adults who take on new enterprises shows improved function and memory as well as a reduced risk of mental disease. Openness—a characteristic defined by curiosity and a desire for knowledge—may also help folks pass brain tests. Some folks are born with this take-in-the-world attitude, but those who aren't as genetically gifted aren't necessarily out of luck. While genes can encourage an interest in doing new things, a 2012 study in the journal Psychology and Aging found completing reasoning tasks like puzzles and number games can enhance that desire for novel experiences, which can, in turn, refresh the brain. That's why brain scientist Richard Kennedy says "It's not that old dogs can't learn new tricks. It's that maybe old dogs don't realize why they should."

PARAGRAPHS · 逐段精读

6 段逐段主旨与解读

逐段拆解2024年6月英语四级真题第1套 的这篇原文——每段给出英文段落主旨、段落标题与中文解读,并提炼一条「这段为什么这样读」的具体方法。

  1. P1

    Learning in Later Life

    Education and learning benefit the aging brain.

    本段承担 opening 和破题功能:它先否定“衰老必然导致认知衰退”的片面看法,再提出 lifelong learning 有益大脑的总论点,为后文解释 brain plasticity、列举活动并补充研究证据搭好逻辑框架。

    抓住转折后的立场句
  2. P2

    The Brain's Ability to Change

    The brain can form new connections through learning.

    本段为全文总论点提供 biological basis:既然大脑会重建并形成 new connections,那么老年人继续学习就具有科学上的可能性;它因此为“晚年仍可学习”提供了机制性解释。

    由实验现象上推结论
  3. P3

    Change Despite Brain Shrinkage

    Age-related brain shrinkage does not stop the brain from adapting.

    本段使全文论证更加 balanced:作者并不否认衰老造成的生理变化,却强调这种变化不等于认知能力必然衰退;它有效反驳了“脑变小,所以不能学习”的简单推论。

    区分让步事实与转折结论
  4. P4

    Novel Experiences Build Flexibility

    Novel learning strengthens mental flexibility despite brain shrinkage.

    本段承接上一段“仍能改变”的可能性,进一步说明改变带来的积极结果,即 mental flexibility;它把理论层面的 brain plasticity 推进为全文关于认知健康的核心收益。

    串联新体验与脑灵活性
  5. P5

    Everyday Ways to Exercise the Brain

    Both brain exercises and everyday novelty support brain health.

    本段把前文的科学结论转化为可操作的 daily practices,增强了说明文的现实指导性;它表明促进 cognitive health 不一定依赖复杂措施,普通生活中的新变化同样有效。

    从多种例子提炼共同功能
  6. P6

    Challenge and Openness in Aging

    Embracing challenges and cultivating openness can refresh the aging brain.

    本段是全文最深入的拓展和收束:它不仅再次证明新挑战能改善 cognition,还指出 openness 并非完全由 genes 决定、可以通过 tasks 培养;结尾的引语因此把全文落到 motivation 上,即老年人需要认识到继续学习的价值。

    整合挑战、开放性与可训练性
SELF CHECK · 段落自检题

6 道逐段细节自检题

针对2024年6月英语四级真题第1套这篇原文,每段配 1 道细节题( 1 个正确项 + 5 个干扰项 ,由懒笔记精读引擎基于本段命制,非试卷原题)。 选项默认中性;点「显示答案与解析」展开正确项、解析与最快解法,现代浏览器会同步高亮正确选项。

  1. 第 1 段 定位词 growing body of research late-in-life learning

    What does the growing body of research suggest about late-in-life learning?

    • A Aging inevitably leads people into forgetfulness.
    • B Wisdom can only be gained after retirement.
    • C It is possible and beneficial for older people to continue learning.
    • D Education completely prevents the brain from aging.
    • E Only highly educated people can learn effectively in old age.
    • F Late-in-life learning is mainly intended to increase wisdom.
    显示答案与解析 收起答案与解析

    正确答案:C

    该项同时覆盖 possible 与 does an aging brain good 两层信息:前者回应学习能否发生,后者回应学习的积极作用。它没有把 good 偷换成 cure,也没有把 research 的倾向性说成绝对保证。障碍在于原文将结论拆在相邻句中,考生需要把 late-in-life learning 与 education 的效果进行合理整合,而不能只机械寻找完全相同的句子。

    转折后语气筛选 时间极紧时,不必先通读。把题干中的 late-in-life learning 当作“连字符定位针”,可直达 第1段;然后只看其前后两句的逻辑箭头,尤其是 However。最高效的判定方式不是逐词翻译全部选项,而是做“语气筛查”:先删含 inevitably、only、completely 等绝对承诺的项,再在剩余项中找同时覆盖 possible 与 positive effect 的正确项。

  2. 第 2 段 定位词 Geoffrey Raisman observation of rats' brains

    What did Geoffrey Raisman's observation of rats' brains indicate?

    • A Damaged brain regions cannot recover after injury.
    • B Only rats can develop new neural connections.
    • C Learning stops the brain from changing over time.
    • D Brains may form new connections when people learn new things.
    • E An electron microscope can measure human intelligence accurately.
    • F New connections are formed only in childhood.
    显示答案与解析 收起答案与解析

    正确答案:D

    该项对应 forging new connections 的观察,并准确承接 This meant brains may change every time a person learns something new 的推论。may 保留原文的科学限定,new connections 与 learn new things 完成同义概括。障碍在于答案没有照搬 rats、electron microscope 等实验细节,而要求考生识别“证据指向的普遍机制”。

    人名后找总结句 直接用 Geoffrey Raisman 跳至 第2段,视线不要在年份和 microscope 上停留。把 indicate 后面自动接成“观察说明什么机制”,然后只寻找紧随实验描述的总结触发词 This meant。判项时采用“从具体到抽象”的反向核验:能把 rats 的观察概括为学习时脑连接变化、且保留 may 的正确项优先。

  3. 第 3 段 定位词 reduction in brain volume think slower

    Why does a reduction in brain volume not necessarily make people think slower?

    • A Brain volume does not decline until people reach their sixties.
    • B People lose less than 4 percent of brain volume in every decade.
    • C Physical height and thinking speed always decline at the same rate.
    • D A shrinking brain automatically becomes more efficient.
    • E Living, functioning people can reshape their brains through new information and experiences.
    • F Only medical treatment can alter an aging brain.
    显示答案与解析 收起答案与解析

    正确答案:E

    该项完整改写 as long as we are alive and functioning, we can alter our brains with new information and experiences。它直接解释为何体积缩小并不自动等于思维减速:大脑仍具有可改变性。障碍在于正确项没有重复 4 percent,而转而呈现限制条件 alive and functioning 及补偿机制 new information and experiences;这要求考生识别解释关系,而非搜寻数字。

    反因果填空 以 brain volume 直达 第3段 后,跳过数字和 height 类比,直接扫描否定限定及其后的解释结构。采用“反因果填空法”:在脑中补出“体积下降不等于变慢,因为____”,能自然补进原文条件与可塑机制的正确项就是答案项。这个方法比逐条翻译更快。

  4. 第 4 段 定位词 keep people's minds more flexible novel experiences, facts, and skills

    What can help keep people's minds more flexible even as the brain shrinks?

    • A Preventing the brain from changing its mental structure.
    • B Relying only on familiar experiences and established skills.
    • C Stopping the formation of new mental pathways.
    • D Increasing brain volume throughout adulthood.
    • E Avoiding new facts in order to preserve existing pathways.
    • F Accumulating novel experiences, facts, and skills.
    显示答案与解析 收起答案与解析

    正确答案:F

    该项直接对应 accumulating novel experiences, facts, and skills can keep people's minds more flexible。它准确保留 accumulating 这一持续增加过程,也完整保留 experiences、facts、skills 三类内容。命题障碍在于后一句的 new pathways 更像专业术语,考生可能误把机制当作题干所问的促成行为;但题干问 what can help,首句已经给出直接答案。

    结果前反取因素 时间紧张时,用 keep people's minds more flexible 直达 第4段,再把句子压缩成“什么事物 → flexible minds”的单箭头。忽略后一句的专业化机制,先从选项中寻找能够完整对应箭头起点的正确项;随后只用 even as 的让步关系核验它没有被偷换成增加 brain volume。

  5. 第 5 段 定位词 simple way keep the brain healthy

    Which activity is mentioned as a simple way to help keep the brain healthy?

    • A Taking a different route to the grocery store.
    • B Repeating the same shopping route every day.
    • C Avoiding unfamiliar places during vacations.
    • D Using brain-training apps as the only effective method.
    • E Eating special foods before visiting a grocery store.
    • F Reducing the number of new experiences.
    显示答案与解析 收起答案与解析

    正确答案:A

    该项是原文以 Even something as simple as 明确提出的日常例子,并直接由 can keep the brain healthy 赋予效果。它的命题障碍在于行为非常普通,考生可能因其不如 brain-training apps“专业”而犹豫;但说明文中的例证题必须服从文本明示,而非个人常识判断。

    动词骨架对照 用 simple 直接锁到 第5段 的 Even something as simple as,不读前一句也能完成初定位。随后采用“动词骨架法”:只抽取 taking + different route 这一动作骨架,忽略所有健康常识和专业词。选项中动作、修饰语和方向三者同时吻合的正确项,立即选定。

  6. 第 6 段 定位词 2012 study Psychology and Aging reasoning tasks

    What did the 2012 study in Psychology and Aging find about reasoning tasks?

    • A They prove that genes completely determine openness.
    • B They can increase the desire for novel experiences, which may refresh the brain.
    • C They directly eliminate the risk of mental disease.
    • D They are effective only for people born with curiosity.
    • E They reduce people's interest in doing new things.
    • F They make older adults realize that learning new tricks is impossible.
    显示答案与解析 收起答案与解析

    正确答案:B

    该项忠实保留完整因果链:completing reasoning tasks can enhance that desire for novel experiences,which can, in turn, refresh the brain。increase 对应 enhance,may 对应 can 的非绝对效果,并且没有删掉 desire 这个中介环节。障碍在于考生容易只看 refresh the brain 而漏掉其前的 which,从而把间接作用误判为任务的唯一直接结果。

    三格因果箭头 先以“2012 + Psychology and Aging”双硬锚直达 第6段,完全绕开该段前半的多个研究信息。最高效的判定是画一条三格心智箭头:reasoning tasks → desire for novel experiences → refresh the brain。然后检查选项:能按顺序保留这条箭头、且不把 can 放大为绝对效果的正确项,即为答案项。

STRUCTURE · 篇章结构

6 个意群的说明文骨架

按说明文 的行文骨架切分意群,每个意群标注它覆盖的段落与对主旨的作用——逐段读完后回到这里俯瞰全篇,能看清作者为什么按这个顺序行文。

  1. 引出话题:晚年学习的可能性

    这个 opening paragraph 首先提出了一个 common misconception,即 aging 就是 forgetfulness 的过程,然后用 however 进行转折,引出 research evidence 表明 late-in-life learning 是 possible 的,education 对 aging brain 有益处。这是典型的 说明文开篇手法,通过 contrast 来 establish 文章的 central claim。

    作为 expository text 的 introduction,这个 segment 完成了 topic establishment 的功能。它通过 refuting 一个 widespread belief 来 highlight 文章要 explain 的 phenomenon,即大脑的 learning capacity 不会因为 aging 而消失。这为后续的 scientific explanation 搭建了 framework。

    直接提出核心观点
  2. 科学证据:大脑的可塑性

    这个 segment 提供了 scientific evidence 来 support 前面的 claim。通过引用 Geoffrey Raisman 的 experiment,展示了 brains 具有 renovation capacity,能够 forge new connections。这是 explanatory text 的典型 evidence section,用 historical research 来 demonstrate brain plasticity 这个 key concept。

    在 expository structure 中,这个 unit 承担了 providing empirical foundation 的角色。它通过 concrete example (Raisman's study) 来 illustrate 大脑的 adaptive nature,为 main thesis 建立了 biological basis。这是说明文从 claim 过渡到 explanation 的 critical step。

    提供神经科学依据
  3. 限定与补充:时间影响与补偿机制

    这个 section 体现了说明文的 balance 特征。它用 'Of course' 承认 aging 对 brain 确实有 physical effects (volume reduction),但立即通过 'But' 进行 qualification,说明这种 reduction 不 necessarily 影响 thinking speed,因为 brains 可以 alter with new information。这是 nuanced explanation,防止读者对前面的 claim 产生 oversimplified understanding。

    在 expository text 中,这种 qualifying segment 增强了 argument 的 credibility。它 acknowledges 反面 evidence (brain shrinkage) 但 reframes 其 significance,表明 physical decline 不等于 functional decline。这种 dialectical approach 是 sophisticated explanation 的标志,让 thesis 更加 robust and convincing。

    承认局限但强调可塑性
  4. 深化解释:新经验的积累效应

    这个 segment 用 'In fact' 引入 deeper explanation,说明 scientists 现在 suspect accumulating novel experiences 可以 keep minds flexible。它 introduces 了 'new pathways' 这个 mechanism,解释为什么 mental structure 能够 remain strong despite brain shrinkage。这是从 general claim 到 specific mechanism 的 explanatory deepening。

    在 expository progression 中,这个 unit 将 explanation 推进到 mechanism level。它不仅说 'what happens' (brain stays flexible),还开始解释 'how it happens' (through new pathways)。这是说明文从 phenomenal description 到 mechanistic explanation 的 typical transition,为后续的 practical applications 做铺垫。

    阐释认知保持的机制
  5. 实践应用:简单的认知维护方法

    这个 segment 从 theoretical mechanism 转向 practical applications。它列举了 conventional fixes 如 word puzzles 和 brain-training apps,以及 everyday activities 如 taking different routes。用 'Even something as simple as' 来强调 accessibility。这是说明文中 typical 的 'practical implication' section,将 scientific principles 转化为 actionable suggestions。

    在 expository structure 中,这个 unit 完成了从 theory 到 practice 的 bridge。它让 abstract concepts (brain plasticity, novel experiences) 变得 concrete and relatable,通过 everyday examples 帮助 readers 理解如何 apply 前面的 scientific findings。这种 practical application section 是说明文 reader-friendly 的关键。

    提供具体实践方法
  6. 深层因素:挑战与开放性的作用

    这个 extended segment 探讨 deeper factors that boost brainpower。它首先提到 taking on new enterprises,然后深入讨论 openness 这个 personality trait,并引用 2012 study 说明即使 genetic disposition 不足,也能通过 reasoning tasks 来 enhance curiosity。最后以 Kennedy 的 quote 收尾,强调 motivation 的重要性。这是说明文的 comprehensive conclusion section,整合了 research evidence, psychological factors, 和 practical implications。

    这个 concluding segment 在 expository structure 中完成了 multiple functions:它 synthesizes previous points (new experiences, brain plasticity), introduces psychological dimension (openness, motivation), provides reassurance (genetic factors aren't determinative),并以 memorable quote 结束。这种 multi-layered conclusion 让 explanation 更 complete,同时给 readers actionable insight 和 encouraging message。

    揭示心理动机因素
MAIN IDEA · 速判主旨

5 步定位这篇文章的主旨

不读完全篇也能锁定主旨——以下 5 步按2024年6月英语四级真题第1套 这篇原文的实际行文顺序给出,每步说明看哪里、看出什么,可直接迁移到其他英语四级文章。

  1. 首段转折词后内容 P1

    说明文的 opening paragraph 常用 common belief 作为 starting point,然后通过 however、but 这类 contrast words 来 introduce 作者要 present 的 actual view,这个 turning point 之后的内容通常就是 article's main idea。

  2. 首段结尾概括句 P1

    说明文的 first paragraph 经常用 topic sentence 来 set up context,然后在 paragraph's end 用一个 broad claim 来 state 文章的 overall message,这个 final sentence 具有 summarizing function。

  3. 段首句支撑点 P2 P3 P4 P5

    说明文的 body paragraphs 通常用 topic sentence 来 introduce 每段的 specific focus,这些 sentences 都是在 support 和 develop main thesis 的不同 aspects,通过它们可以 verify 我们对 main idea 的 understanding 是否 accurate。

  4. 结尾强调表述 P6

    说明文的 final paragraph 常用来 bring together 前面的 arguments,并用 explicit language 来 emphasize central point。这些 conclusive markers 会 signal 作者在 wrap up 时想要 drive home 的 key takeaway。

  5. 结构标记综合定位 P1 P2 P3 P4 P5 P6

    说明文有固定的 organizational patterns,通过识别这些 structural signals 可以 bypass detailed content 而直接 access core message,这是 efficient reading 的关键 technique。

主旨信号词 however P1 In reality P1 constantly P2 In fact P4 can P3 That's why P6

MAIN IDEA · 主旨

这篇文章在说什么

与衰老导致认知衰退的观念相反,研究表明大脑在人的一生中都保持学习和适应能力。参与新体验、挑战和学习活动可以维持思维灵活性和认知健康,即使大脑容量随年龄自然减少。
Contrary to the belief that aging leads to cognitive decline, research shows that the brain remains capable of learning and adaptation throughout life. Engaging in new experiences, challenges, and learning activities can maintain mental flexibility and cognitive health, even as brain volume naturally decreases with age.
WORD INFERENCE · 生词推断

4 个生词的上下文推断

不查词典,只用文中线索推出词义——每个词给出推断出的释义与 完整推理链。已收录进英语四级高频真题词集的单词可点击进入词条页。

  • forge 建立、创造、锻造

    现在让我们把所有 clues 串联起来。首先,我们从 upper context 和 lower context 的逻辑关系入手:科学家观察到 damaged brain regions 出现 growth,这种 growth 的具体表现就是 forging new connections。Growth 是正面的,new connections 也是正面的,所以 forge 必然表示某种创造性动作。其次,从 damaged 到 new connections 的转变,显示大脑在主动修复和重建,这进一步确认 forge 是建设性的。最后,构词法上 forge 与 form 的相似性,以及 -ing 表示的持续动作性,都支持 forge 表示「塑造、创建」的含义。将这些 evidence 整合,我们可以非常 confidently 地推断出 forge 在这里的 meaning。

    动词的三层分析法:逻辑关系、语义对比、构词联想
  • accumulate 积累、积聚、累积

    让我们把这些 threads 编织在一起。首先,从 immediate context 来看,accumulating 的 objects 是 novel experiences, facts, and skills,这些都是可以不断增加的东西,而且这种 accumulating 的 result 是 keep minds flexible,这是一个 positive outcome,说明 accumulate 是一个 constructive process。其次,从 inter-paragraph connection 来看,第4段 的 accumulating novel experiences 呼应 第3段 的 new information and experiences,这种 thematic continuity 确认 accumulate 就是不断获取新东西的过程。最后,从 morphology 角度,ac- 的强化作用和 -ate 的动作性,都支持 accumulate 表示「积累、聚集」。所有 evidence 都指向同一个 direction。

    抽象动词的双线索交叉验证:段内分析与段间主题追踪
  • durability 持久性、耐久性

    现在让我们把所有 pieces 拼在一起。从 micro level 来看,第5段 中 mental durability 与 keep the brain healthy 形成 parallel structure,这直接告诉我们 durability 与 health 和 sustainability 相关。从 morphological level 来看,dur- 这个 root 在 during 和 endure 中都表示持续性,-ability 表示性质,所以 durability 就是持久的性质。从 macro level 来看,全文都在讨论 aging brain 如何通过学习保持 flexibility 和 health,mental durability 正是这个 central theme 的一个 concrete manifestation。三个 layers 的 evidence 完美契合。

    抽象名词的三维定位:句法平行、词根拆解、主题追踪
  • enterprise 事业、项目、计划

    让我们整合所有的 analytical threads。首先,从 contextual synonymy 来看,new enterprises 与前一句的 new life challenges 形成呼应,这直接提示 enterprise 是某种 challenge 或 undertaking。其次,从 morphology 来看,enter- 这个 root 暗示进入、开始某种行动,结合 business enterprise 的常见用法,我们知道 enterprise 与项目、事业相关。第三,从 modifiers and verb collocation 来看,take on new enterprises 强调主动性和新颖性,而 result 是 cognitive improvement,说明 enterprises 是需要 mental engagement 的复杂活动。综合这些 clues,enterprise 的 meaning 呼之欲出。

    语境依赖名词的同义网络定位法
RHETORIC · 修辞手法

9 处修辞手法与仿写

每处修辞给出它在本文的具体用法、同类信号词清单与一份可直接套用的 写作仿写建议——读完能认,也能写。

  • 打比方

    P1

    开头把 aging 描述为“a slide into forgetfulness”,并与“a journey towards wisdom”形成两种人生图景;这种 metaphor 将抽象的认知老化具象为“下滑”或“旅程”,从而先呈现大众的悲观看法,再用 However 引出研究结论,突出本文“老年大脑仍可学习和适应”的主旨。

    信号词 like as as if as though more ... than ... similar to a kind of

    仿写: 写作时你可以先问自己:我要说明的 abstract process,读者最容易联想到什么日常画面?随后选择一个结构相似、特征鲜明的 image,但要确保比喻服务于解释而非单纯追求华丽。仿写模版:A is more like a/an ______ than a/an ______, because it ______.

  • 打比方

    P2

    作者说人的 brains constantly “renovate themselves”,把大脑神经连接的更新比作房屋 renovation;这一 metaphor 生动说明大脑并不是固定不变的器官,而会持续重建连接,为“终身学习能够改善老年大脑”提供直观的机制解释。

    信号词 like as as if as though compared with similar to

    仿写: 你可以追问:这个科学过程像人们熟悉的哪一种动作或系统?例如,网络更新可以类比为 a road system 的扩建。仿写模版:X works like ______, constantly ______ so that ______.

  • 引资料

    P2

    作者引用 British brain scientist Geoffrey Raisman 在 late 1960s 对 rats 的观察:受损脑区出现 growth,并且在 forging new connections;这一实验资料以科学发现证明神经连接能够重建,使“大脑会因学习而改变”的观点不只是主观判断,而更具 authority 和可信度。

    信号词 according to research shows a study found scientists found data show in a survey in the journal reported by In the late 1960s

    仿写: 写作前可以问:我的核心判断是否需要 evidence 来避免空泛?若需要,就交代研究者、时间、对象和发现,并在资料后明确指出其证明什么。仿写模版:According to ______, a study/research conducted in ______ found that ______, which suggests that ______.

  • 作比较

    P3

    作者用“Just as height usually declines over the years, so does brain volume”比较身高与脑容量随年龄下降的共同趋势;这个 comparison 先用读者容易接受的身高变化解释脑容量减少,再通过 But 强调脑容量下降并不必然导致思维变慢,使论证更加严谨而不绝对。

    信号词 just as ... so ... like similarly likewise compared with in contrast while than

    仿写: 你可以先思考:读者已经熟悉的现象是什么?它与我要解释的现象有哪些可比特征?比较后还要说明二者的关键 difference,避免不恰当类推。仿写模版:Just as A ______, so does B; however, B does not necessarily ______.

  • 列数字

    P3

    句中“Humans lose about 4 percent every decade starting in their 40s”用 4 percent 和 every decade 精确呈现脑容量下降的幅度与频率;这个 numerical detail 承认衰老带来的客观生理变化,也为后文“仍可通过新经验改变大脑”建立了真实、理性的讨论基础。

    信号词 percent per every about more than less than from ... to ... a total of one in

    仿写: 你可以问:读者最需要知道的是数量、比例、速度还是时间?选择最能支撑中心句的数据,并说明其 measurement 的对象,不能只孤立堆砌数字。仿写模版:X changes by about ______ percent every ______, starting from ______.

  • 举例子

    P5

    作者列出 word puzzles、brain-training apps、taking a different route to the grocery store 和 going somewhere new on vacation 等例子;这些 everyday examples 把“积累新经验能够保持大脑健康”这一抽象建议转化为可操作的生活行为,增强文章的 practical value。

    信号词 for example for instance such as like including take ... as an example especially

    仿写: 你可以先问:读者看完观点后,能否立刻想到一个真实场景?选择具有代表性且贴近日常的 examples,并让例子与前面的中心句一一对应。仿写模版:For example, people can ______, such as ______ or ______, to ______.

  • 下定义

    P6

    作者把 Openness 界定为“a characteristic defined by curiosity and a desire for knowledge”;这个 definition 明确了开放性并非泛泛的“性格好”,而是由好奇心和求知欲构成的心理特质,因此帮助读者理解它为何能够提升 brain tests 的表现。

    信号词 is refers to means is defined as defined by is called can be described as

    仿写: 你可以先追问:这个术语最不可缺少的本质特征是什么?定义应使用上位概念加关键特征的方式,避免只用同义词循环解释。仿写模版:X is a/an ______ defined by ______ and ______.

  • 引资料

    P6

    作者援引 a 2012 study in the journal Psychology and Aging,说明完成 puzzles 和 number games 能增强人们对 novel experiences 的 desire;该 journal study 不仅证明后天训练可以影响开放性,也进一步连接“训练—新体验—大脑焕新”的因果链,强化了基因并非唯一决定因素的主旨。

    信号词 a study found research shows according to published in in the journal scientists suggest data indicate a survey revealed

    仿写: 你可以思考:资料究竟证明了论证链中的哪一环?引用 study 后,应当用 which shows 或 this suggests 点明其意义,避免让证据与中心论点脱节。仿写模版:A ______ study published in ______ found that ______, suggesting that ______.

  • 引资料

    P6

    结尾引用 brain scientist Richard Kennedy 的话:“It’s not that old dogs can’t learn new tricks...” 这句 quote 巧妙改写常见谚语,指出问题未必是老年人没有学习能力,而可能是不理解学习的理由;专家观点以简洁有力的方式收束全文,并把“主动迎接新挑战”这一建议留给读者思考。

    信号词 says said according to argues notes points out writes believes

    仿写: 你可以问:哪一句 expert opinion 能最准确地概括全文并引发思考?引用不能代替分析,quote 后或 quote 前要说明它与中心论点的关系。仿写模版:That is why ______ says, “______,” emphasizing that ______.

IMPLIED MEANING · 言外之意

4 处话里有话

作者没有明说、但靠信号词传递出来的态度与暗示——每处给出原文片段、信号词类型与解读。

  • 反驳常见误解以引出正确观点

    P1
    Some people have said aging is more a slide into forgetfulness than a journey towards wisdom. However, a growing body of research suggests that late-in-life learning is possible.

    转折类 However But Yet Nevertheless Nonetheless On the contrary In contrast

    这个 however 的言外之意是:大众普遍认为 aging equals cognitive decline 是个 misconception,但科学研究 proves otherwise。它对文章主旨的 role 非常关键,因为它 establishes the central argument:老年人的大脑 still capable of learning。这个转折直接 sets up 整篇文章要 defend 的观点,后面所有 paragraphs 都在 provide evidence 来 support 这个 however 引出的 claim。

  • 用让步承认事实但强调不改变核心结论

    P3
    Of course, that doesn't mean the brain isn't affected by the effects of time. Just as height usually declines over the years, so does brain volume: Humans lose about 4 percent every decade starting in their 40s. But that reduction doesn't necessarily make people think slower

    让步类 Of course Admittedly Certainly True It is true that Granted No doubt

    这个 'of course' 的言外之意是:我承认 aging 确实有 physical impact on brain(volume decreases),但这个 biological fact 并不 contradict 我的 main thesis about learning ability。它的 value 在于让文章更 balanced and convincing,因为作者 isn't ignoring 明显的 age-related changes,而是 reframing them:physical shrinkage doesn't equal functional decline。这个让步 actually reinforces the main message:虽然有 structural changes,但 learning capacity remains,这让整个 argument 更加 nuanced and scientifically sound。

  • 用否定表达暗示积极可能性

    P6
    Some folks are born with this take-in-the-world attitude, but those who aren't as genetically gifted aren't necessarily out of luck.

    委婉表达 aren't necessarily out of luck aren't necessarily not entirely doesn't always may not be not inevitably doesn't have to

    这个 'aren't necessarily out of luck' 的言外之意是:即使你 genetically 不具备 openness trait,你仍然 can develop it through effort。它对文章主旨的 contribution 是 empowering:不仅说 old brains can learn,还说 personality traits that facilitate learning are also malleable。这个委婉表达 softens 遗传因素的 determinism,暗示 everyone has potential for late-life learning regardless of their starting point。它 reinforces the optimistic tone 并 makes the research findings more actionable for readers。

  • 用引语反问揭示认知误区

    P6
    It's not that old dogs can't learn new tricks. It's that maybe old dogs don't realize why they should.

    对比类 It's not that... It's that maybe It's not that... it's that The problem isn't... but rather Not because... but because It's less about... and more about Rather than... it's Instead of... it's actually

    这句话的言外之意 profoundly reframes the entire discussion:问题不在于老年人的 learning capacity,而在于他们的 motivation or awareness。Kennedy 的这个 quote 把 focus 从 biological limitations 转向 psychological attitudes。它对文章主旨的 significance 是:不仅 proves old brains CAN learn,还 reveals WHY they often don't —— 缺乏 perceived purpose。这个 insight 把整篇文章从 defensive(proving capability)提升到 prescriptive(suggesting what needs to change)。言外之意是:age-related cognitive decline 更多是 self-fulfilling prophecy based on motivation 而非 inevitable biological fate。

AUTHOR ATTITUDE · 作者态度

作者态度:积极支持

结论先行:本文作者态度为积极支持( optimistic and encouraging about late-life learning)。下面是按步骤还原的判断过程与文中的态度信号词。

  1. 首段转折定立场 P1

    说明文的author通常在首段就会establish他的position,这里用however做转折,从否定别人的观点pivot到肯定自己的观点,这种rhetorical pattern表明作者要argue for某个positive立场,而不是保持neutral。

  2. 单向证据显倾向 P2 P3 P4

    说明文作者如果是objective neutral的话,会present both sides的evidence,但这篇文章的所有scientific examples都point to同一个direction——大脑的plasticity和learning potential,这种one-sided evidence selection就反映出作者是在advocate for这个观点而非merely inform。

  3. 结尾激励语显意图 P6

    说明文如果纯粹informative,结尾会summarize facts;但这篇用了反转common saying的rhetorical device,把消极的stereotype翻转成positive message,这种creative expression和uplifting tone表明作者不仅要inform,还要inspire和encourage读者。

  4. 全文一致性证实 P1 P2 P3 P4 P5 P6

    说明文的overall structure可以reveal作者的true intention,这篇文章的每个part都在build toward同一个message——老年学习不仅possible而且beneficial,这种cumulative effect和unified direction证明作者有clear advocacy purpose,他的attitude是consistently positive throughout。

文中的态度信号词

  • However P1

    这个however是个powerful attitudinal marker,它signal作者要reject前面提到的negative perception,并introduce他自己的counter-argument。在说明文中,这种explicit contrast不是为了show两方观点,而是为了establish作者的preferred position,转折词后面的内容才是他真正endorse的观点。

    同类词 Yet Nevertheless Nonetheless Still But

  • In reality P1

    这个in reality是个emphatic device,作者用它来强调接下来的statement才是true picture,这implicitly否定了之前提到的misconception。这种reality-checking language表明作者要correct错误认知,establish正确的understanding,这个corrective tone就reveal了他的supportive attitude towards晚年学习。

    同类词 In fact Actually Indeed As a matter of fact The truth is

  • can P4

    这个can表达possibility和capability,在这个context里它传达的是empowering message——人的minds有flexibility,brains有change的能力。作者反复用这类modal verbs来highlight潜力和可能性,这种language choice体现了optimistic和encouraging的stance,不是cautious或skeptical的tone。

    同类词 could may might enable allow

  • even P3

    这个even在'even as the brain shrinks'这个context里表达concession但强调resilience,意思是尽管有physical decline,人still能够improve mental function。这种'even'的用法是在minimize negative factor同时emphasize positive outcome,这个rhetorical strategy体现了作者要downplay obstacles、highlight potential的optimistic approach。

    同类词 even though despite in spite of regardless of notwithstanding

  • constantly renovate P2

    这个renovate是个positive-connotation verb,作者用它来describe大脑的自我改造能力,这个word choice本身就carry optimistic undertone。他可以用neutral words like 'change'或'modify',但选择了renovation这个implies improvement和renewal的词,这个deliberate lexical choice reflects他对大脑plasticity的positive evaluation。

    同类词 renovate renew regenerate revitalize rejuvenate

  • doesn't necessarily P3

    这个doesn't necessarily是在challenge一个assumed negative consequence,作者说brain volume reduction不necessarily导致思维slower,这个phrasing在break down一个pessimistic assumption。通过否定这个inevitable link,他在create space for optimistic alternative——decline in one area不等于overall deterioration。这个logical move体现了他要counter defeatist narrative的intention。

    同类词 not always not inevitably need not doesn't have to isn't bound to

GENRE · 速判体裁

30 秒判定这是一篇说明文

体裁决定读法与出题套路。以下判断步骤与标志词全部以本文为例,可直接迁移到其他英语四级 真题文章。

如何快速判断这是一篇说明文?

  1. 开头引出待解释的主题 P1

    议论文的 opening 会明确 state 作者的 stance 并准备 argue,新闻报道会 lead with 最重要的 news facts(who, what, when, where)。而这篇文章的第一段在 introduce 一个 scientific finding(老年学习是可能的),这是 typical expository opening,目的是 set up 后续的 explanation。

  2. 正文呈现客观事实和科学证据 P2 P3 P4

    议论文的 body paragraphs 会用 examples 和 reasoning 来 prove 作者的 thesis,新闻报道会 provide details about the event。而说明文的 body 是在 systematically break down 一个 topic,用 scientific studies、statistics、expert findings 来 illustrate how something works。这里每段都在 add layers of understanding 关于大脑如何学习。

  3. 作者保持客观中立的信息传递者角色 P1 P2 P3 P4 P5 P6

    议论文的 author 会 clearly position themselves 并用 persuasive language('we must', 'it's crucial that'),新闻报道的 journalist 会 maintain distance 并 quote sources extensively。说明文的 author acts as an educator,用 informative tone 来 make the subject clear,就像这里在 teaching readers about brain plasticity。

  4. 主题引入加事实支撑加中立语气 P1 P2 P3 P4 P5 P6

    说明文的 defining characteristics 是 explanatory purpose + factual support + objective stance 的三重组合。Argumentative essays 会有 clear thesis + supporting arguments + call to action 的结构,news reports 会有 lead + details + quotes + recency 的特征。这篇文章 fits perfectly into expository pattern,每个 paragraph builds knowledge about the topic without author bias 或 time-sensitive events。

哪些词暴露了说明文体裁?

  • research suggests P1 科学证据引入词 studies show scientists found evidence indicates data reveals findings demonstrate
  • In reality P1 事实澄清转折词 In fact Actually As a matter of fact The truth is In practice
  • This meant P2 因果解释连接词 This means This indicates This implies This suggests Therefore
  • Of course P3 让步承认过渡词 Certainly Admittedly It is true that Granted To be sure
  • In fact P4 事实强化递进词 Indeed Actually Moreover Furthermore Additionally
  • like P5 举例说明介词 such as for example for instance including namely
  • shows P6 研究结果呈现动词 reveals demonstrates indicates displays exhibits
  • defined by P6 概念定义短语 defined as refers to means is characterized by consists of
  • found P6 研究发现动词 discovered observed detected identified noted
SENTENCE INSIGHTS · 句子精讲

13 句真题句逐层精讲

下列真题句各有独立的句子解析页——中文翻译、结构树逐层拆解、成分与时态、考点讲解与真题高频词。点击句子进入完整解析。

FAQ · 常见问题

关于 2024年6月英语四级真题第1套 Part Ⅲ Section C (2) 的常见问题

2024年6月英语四级真题第1套 Part Ⅲ Section C (2) 文章 的原文出自哪里?
2024年6月英语四级真题第1套 Part Ⅲ Section C (2) 文章节选自网站www.popsci.com 2021 年 3 月 9 日发布的一篇文章。
2024年6月英语四级真题第1套 Part Ⅲ Section C (2) 文章的主旨是什么?
与衰老导致认知衰退的观念相反,研究表明大脑在人的一生中都保持学习和适应能力。参与新体验、挑战和学习活动可以维持思维灵活性和认知健康,即使大脑容量随年龄自然减少。(英文表述:Contrary to the belief that aging leads to cognitive decline, research shows that the brain remains capable of learning and adaptation throughout life. Engaging in new experiences, challenges, and learning activities can maintain mental flexibility and cognitive health, even as brain volume naturally decreases with age.)
2024年6月英语四级真题第1套 Part Ⅲ Section C (2) 文章是什么体裁?难度如何?
体裁为说明文,作者立场是积极支持(optimistic and encouraging about late-life learning)。CEFR 难度 C1,全文 350 词、6 段;在英语四级全部 511 篇真题文章中,C1 级共 163 篇(占 32%)。
2024年6月英语四级真题第1套 Part Ⅲ Section C (2) 文章的篇章结构是怎样的?
全文 6 段按说明文骨架分为 6 个意群:第1段——引出话题:晚年学习的可能性;第2段——科学证据:大脑的可塑性;第3段——限定与补充:时间影响与补偿机制;第4段——深化解释:新经验的积累效应;第5段——实践应用:简单的认知维护方法;第6段——深层因素:挑战与开放性的作用。
2024年6月英语四级真题第1套 Part Ⅲ Section C (2) 文章的作者态度是什么?
作者态度是积极支持(optimistic and encouraging about late-life learning)。判断路径:首段转折定立场 → 单向证据显倾向 → 结尾激励语显意图 → 全文一致性证实;文中的态度信号词包括 However(第1段)、In reality(第1段)、can(第4段)、even(第3段)、constantly renovate(第2段)、doesn't necessarily(第3段)。
2024年6月英语四级真题第1套 Part Ⅲ Section C (2) 文章中有哪些值得积累的生词?
按文中出现顺序共 4 个:forge(建立、创造、锻造)、accumulate(积累、积聚、累积)、durability(持久性、耐久性)、enterprise(事业、项目、计划),每个词的词义都可以由文中上下文线索推断得出。

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