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2002年考研英语真题 Section II Part A (2)
Postgraduate · 来自 2002年考研英语真题 · Section II Part A (2) · 阅读理解（四选一）

2002年考研英语真题 Section II Part A (2)

说明文 · 阅读理解（四选一） · 真题文章逐层精读

有关机器人学的一本专著 Hope: Reunification of Mankind(《希望:人类的重新统一》)。

本页是 2002年考研英语真题 Section II Part A (2) 文章的精读视角页——这篇说明文全文 414 词、5 段，CEFR 难度 C1（C1 级在考研英语文章中占 91%），作者立场为「客观中立」；英文原文之外，本篇已有的 11 项精读维度逐项展开，其中能迁移到其他考研英语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

5 段英文原文

以下为2002年考研英语真题 Section II Part A (2) 的阅读理解（四选一）原文，共 5 段。左侧 P1–P5 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。

Since the dawn of human ingenuity, people have devised ever more cunning tools to cope with work that is dangerous, boring, burdensome, or just plain nasty. That compulsion has resulted in robotics—the science of conferring various human capabilities on machines. And if scientists have yet to create the mechanical version of science fiction, they have begun to come close.

As a result, the modern world is increasingly populated by intelligent gizmos whose presence we barely notice but whose universal existence has removed much human labor. Our factories hum to the rhythm of robot assembly arms. Our banking is done at automated teller terminals that thank us with mechanical politeness for the transaction. Our subway trains are controlled by tireless robot-drivers. And thanks to the continual miniaturization of electronics and micro-mechanics, there are already robot systems that can perform some kinds of brain and bone surgery with submillimeter accuracy—far greater precision than highly skilled physicians can achieve with their hands alone.

But if robots are to reach the next stage of laborsaving utility, they will have to operate with less human supervision and be able to make at least a few decisions for themselves—goals that pose a real challenge. "While we know how to tell a robot to handle a specific error," says Dave Lavery, manager of a robotics program at NASA, "we can't yet give a robot enough 'common sense' to reliably interact with a dynamic world."

Indeed the quest for true artificial intelligence has produced very mixed results. Despite a spell of initial optimism in the 1960s and 1970s when it appeared that transistor circuits and microprocessors might be able to copy the action of the human brain by the year 2010, researchers lately have begun to extend that forecast by decades if not centuries.

What they found, in attempting to model thought, is that the human brain's roughly one hundred billion nerve cells are much more talented—and human perception far more complicated—than previously imagined. They have built robots that can recognize the error of a machine panel by a fraction of a millimeter in a controlled factory environment. But the human mind can glimpse a rapidly changing scene and immediately disregard the 98 percent that is irrelevant, instantaneously focusing on the monkey at the side of a winding forest road or the single suspicious face in a big crowd. The most advanced computer systems on Earth can't approach that kind of ability, and neuroscientists still don't know quite how we do it.

PARAGRAPHS · 逐段精读

5 段逐段主旨与解读

逐段拆解2002年考研英语真题 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

    The Origin and Promise of Robotics

    Robotics arose from humanity's need to escape difficult work and is advancing toward science-fiction-like machines.

    本段是全文的 opening paragraph，它先建立“人类以技术节省劳动”这一总背景，并引出 robotics 这个核心话题。 这一铺垫使后文既能列举 robots 的现实应用，也能进一步讨论 artificial intelligence 的关键瓶颈。

    动因—定义—前景
  2. P2

    Robots in Everyday Modern Life

    Robots are already widely performing human work with growing precision in many areas of modern life.

    本段把首段所说的技术前景转化为 concrete evidence，证明机器人已经实际减少人类劳动，并非遥远设想。 它也为下文的“But”埋下伏笔：尽管 robots 很能干，它们距离真正自主智能仍有明显差距。

    多例归一
  3. P3

    The Challenge of Robot Common Sense

    For robots to become more useful, they must gain autonomous decision-making and common sense, which remains a major challenge.

    本段是全文的 turning point，它否定的不是现有 robots 的价值，而是指出其能力边界。 由“替代劳动”转向“自主思考”，文章的重心开始进入 true artificial intelligence 这一更深层的核心问题。

    目标—障碍
  4. P4

    Delayed Dreams of Artificial Intelligence

    Artificial intelligence research has progressed far more slowly than early researchers expected.

    本段从历史预期的角度强化了上段的 challenge：真正的 AI 并没有按照人们曾经设想的速度实现。 它承上概括研究受挫，并启下引出原因——human brain 与 human perception 的复杂程度远超预想。

    昔日乐观，今日延后
  5. P5

    Why Human Perception Outstrips Machines

    The extraordinary complexity of human perception explains why current robots and computers cannot achieve true artificial intelligence.

    本段是全文的 explanatory climax，它具体揭示 true artificial intelligence 难以实现的深层原因。 通过比较 robots 的局部精确与人脑的整体感知，作者最终回应文章主旨：技术虽已显著节省劳动，但仍无法复制 human brain 的关键能力。

    受控识别不等于真实感知
SELF CHECK · 段落自检题

5 道逐段细节自检题

针对2002年考研英语真题这篇原文，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 motivated robotics

    What has primarily motivated people to develop robotics?

    • A To reproduce the imaginary machines described in science fiction.
    • B To prove that machines possess greater ingenuity than humans.
    • C To deal with work that is dangerous, tedious, burdensome, or unpleasant.
    • D To eliminate all forms of human work permanently.
    • E To make scientific research less dependent on mechanical tools.
    • F To ensure that every machine can perform human capabilities.
    显示答案与解析 收起答案与解析

    正确答案：C

    正确项将 dangerous、boring、burdensome 和 nasty 四项并列描述压缩为 tedious、unpleasant 等同义概括，保留了“应对不理想工作”这一主干，并准确对应人类的 compulsion。它没有把 robotics 本身当成动机，也没有夸大为“彻底取代人类”。命题障碍在于选项没有机械重复原文，而是用 deal with 和概括性形容词完成 paraphrase；考生必须核对因果方向与语义范围。

    动机句反向填空 时间极紧时，直接抓题干中的 motivated，而不要从 robotics 开始逐句回读；前者是低频关系词，后者是高频主题词。它会迅速指向 第1段 中的因果连接处。随后采用“反向验题”：把每个选项代回“人们开发该技术，是为了____”，只检查其能否解释动机。能够自然补全因果句、且不出现绝对化扩张的正确项，就是答案项。

  2. 第 2 段 定位词 surgical robot systems illustrate

    What do the surgical robot systems illustrate?

    • A They have made surgeons unnecessary in all brain and bone operations.
    • B They work only after receiving constant instructions from physicians.
    • C They owe their accuracy mainly to the expansion of electronic components.
    • D They can achieve surgical precision beyond what even highly skilled physicians can attain by hand alone.
    • E They are less reliable than automated systems used in banking.
    • F They are designed primarily to make subway transportation safer.
    显示答案与解析 收起答案与解析

    正确答案：D

    正确项保留了原文的核心比较：robot systems 的 submillimeter accuracy 与 highly skilled physicians 的 hands alone 相比较，前者具有 far greater precision。beyond what...can attain 是对该比较关系的等义改写。障碍在于命题人把原文数字化表述 submillimeter 改写为抽象结论 surgical precision，并用 even 强调比较对象的高水平，考生必须抓住“机器人精度更高”而非“医生参与手术”。

    精度比较扫描 紧张时先抓 surgical 与 precision 这一“场景＋性能”组合，直接定位 第2段 的句末，不必阅读前面三个自动化例子。然后采用“比较级扫描法”：只在定位句中寻找 greater、than、accuracy 等比较标记，并在选项中优先寻找保留比较方向的正确项。场景相同但没有比较关系的选项，立即降级。

  3. 第 3 段 定位词 next stage obstacle

    What is the major obstacle to robots' next stage of labor-saving usefulness?

    • A The lack of machines capable of handling a specific error.
    • B The excessive amount of human supervision required in factory work.
    • C The failure of robots to perform repetitive tasks accurately.
    • D The unwillingness of NASA researchers to program robot behavior.
    • E The inability to equip robots with enough common sense to interact reliably with a changing world.
    • F The need to reduce the physical size of robot components further.
    显示答案与解析 收起答案与解析

    正确答案：E

    正确项准确重组了 enough common sense、reliably interact 和 dynamic world 三个语义支点，完整呈现专家指出的瓶颈。changing world 是 dynamic world 的同义改写，inability 则对应 can't yet。干扰设置在于正确项没有直接复现 make decisions 或 human supervision，而是追溯到导致这些目标难以实现的根本能力缺口。

    否定宾语核验 先不读整段，直接用 next stage 定位 第3段 的首句，再沿着冒号后的专家引语寻找 can't yet。此题最快的判定方式是“否定对象核验”：把选项中的缺失能力与 can't yet 后面的宾语逐一对照。只有正确项保留了“常识＋动态互动”这个完整宾语组；任何把已经会做的 specific error 说成障碍的选项都可秒排。

  4. 第 4 段 定位词 revised their forecast true artificial intelligence

    How have researchers revised their forecast about achieving true artificial intelligence?

    • A They now believe it will be achieved exactly in 2010.
    • B They have concluded that transistor circuits alone can copy the human brain.
    • C They have abandoned the search for artificial intelligence as unproductive.
    • D They expect robots to surpass the human brain within a few years.
    • E They have narrowed the forecast to cover only industrial robots.
    • F They have postponed it from around 2010 to decades, and perhaps centuries, later.
    显示答案与解析 收起答案与解析

    正确答案：F

    正确项完整保留了时间变化：早期认为可 by the year 2010 实现，后来却 extend that forecast by decades if not centuries。postponed 和 later 准确表达时间表后移，没有误说研究被停止或目标被放弃。命题障碍在于原文用 extend that forecast 这一较委婉表达，选项用 postponed 显性概括，考生需识别二者的时间逻辑等价。

    预测时间轴压缩 高压状态下，用 forecast 直接定位 第4段，再只圈读四类时间信号：1960s and 1970s、2010、lately、decades or centuries。不要先分析 AI 的复杂定义。采用“时间轴压缩法”：把信息压成“早期较近，后来很远”，再选出唯一符合这个时间轴的正确项。

  5. 第 5 段 定位词 human mind visual perception

    Why can the human mind outperform the most advanced computer systems in visual perception?

    • A It can rapidly discard irrelevant information and concentrate on the few cues that matter in a changing scene.
    • B It has more nerve cells than any computer system can contain.
    • C It can detect panel errors with submillimeter accuracy in factories.
    • D It relies on neuroscientists to identify suspicious faces instantly.
    • E It processes every detail in a scene before making a decision.
    • F It operates best only in a tightly controlled environment.
    显示答案与解析 收起答案与解析

    正确答案：A

    正确项准确概括人脑的两步处理机制：先 disregard the 98 percent that is irrelevant，再 instantaneously focus on the monkey 或 suspicious face。rapidly、changing scene、cues that matter 分别对应原文的速度、环境和关键信息。它也解释了为何 computers can't approach that kind of ability。障碍在于正确项没有照抄 98 percent、monkey 或 face，而是抽象出 selective filtering 与 focused attention 的机制。

    九成八过滤测试 先用 human mind 与 visual perception 的语义动作 glimpse、disregard、focus 定位 第5段，不必从段首的 nerve cells 开始读。随后用“98%删减测试”判定：凡是暗示全量处理、机械式精确检测或受控环境的选项都与核心机制冲突；唯一保留“舍弃无关信息再锁定关键目标”的正确项即为答案项。

STRUCTURE · 篇章结构

5 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. P1

    机器人技术的起源与定义

    这个 opening paragraph 介绍了 human ingenuity 推动下 robotics 的诞生，说明人类一直在 devise cunning tools 来应对 dangerous、boring、burdensome 的工作，而 robotics 就是赋予 machines various human capabilities 的科学，scientists 已经 come close 到科幻小说中的 mechanical version。

    作为 expository text 的 introduction，这个 sense group 建立了 robotics 这个 central topic，通过 trace back 到 human history 和 compulsion，为后续 elaborate on 机器人的 evolution 和 current state 奠定 foundation，同时用 science fiction 的 reference 暗示了 artificial intelligence 的 ultimate goal。

    引出机器人技术的概念
  2. P2

    现代机器人的广泛应用现状

    这个 sense group 通过 concrete examples 展示了 modern world 中 intelligent gizmos 的 universal existence，从 factory assembly arms 到 automated teller terminals，从 subway trains 的 robot-drivers 到能进行 brain and bone surgery 的 robot systems with submillimeter accuracy，说明 robotics 已经 remove much human labor 并且 achieve precision 超过 highly skilled physicians。

    作为 expository structure 中的 exemplification section，这个 sense group 通过 provide tangible evidence 来 substantiate 前面的 general statement，让 readers 具体感知 robotics 的 current state of development。这些 real-world applications 既 demonstrate 已有的 achievements，又为下文 transition 到 limitations and challenges 做好 preparation，形成 contrast 的 foundation。

    展示现有成就
  3. P3

    机器人发展面临的关键挑战

    这个 turning point paragraph 用 but 引出 robots 要 reach next stage 必须 operate with less human supervision 并 make decisions for themselves，这 pose a real challenge。通过 quote NASA manager Dave Lavery 的话，指出虽然 we know how to tell a robot to handle specific error，但 can't yet give enough common sense 来 reliably interact with dynamic world，揭示了 current limitations。

    这个 sense group 是 expository structure 中的 critical pivot point，从 presentation of achievements 转向 discussion of limitations。它 introduce the central problem 即 lack of common sense and autonomous decision-making，这直接 connect 到 main thesis 中提到的 significant challenge of achieving true artificial intelligence。这个 transitional section 为后续 two paragraphs 的 deeper exploration 设定了 focus。

    指出核心难题
  4. P4

    人工智能探索的曲折历程

    这个 sense group 聚焦于 quest for true artificial intelligence 的 mixed results，回顾了 1960s and 1970s 的 initial optimism 以为 by 2010 能 copy human brain，但 researchers lately 已经 extend that forecast by decades if not centuries，说明 artificial intelligence 的 development 远比 initially imagined 更加 challenging and prolonged。

    作为 expository structure 中的 historical contextualization，这个 sense group 通过 trace the trajectory of AI research 来 explain why the challenge mentioned earlier 如此 significant。它 demonstrate 即使有 decades of effort and initial optimism，the goal 仍然 remains elusive，这 reinforce 了 main thesis 中关于 achieving true AI 的 complexity。这种 temporal perspective 让 readers 理解 this is not a recent problem but a persistent one。

    追溯失败经历
  5. P5

    人脑复杂性导致AI瓶颈的深层原因

    这个 concluding sense group 揭示了 root cause：human brain's roughly one hundred billion nerve cells 比 previously imagined 更 talented，human perception far more complicated。通过 contrast robots in controlled factory environment 和 human mind 能 immediately disregard 98 percent irrelevant information 并 instantaneously focus on key details，说明 most advanced computer systems can't approach that ability，而 neuroscientists still don't know quite how we do it。

    作为 expository structure 的 explanatory conclusion，这个 sense group 通过 detailed comparison 和 neurological explanation 来 answer the implicit question: why is true AI so difficult? 它 directly address 主旨中提到的 complexity of human brain functions and perception that current technology cannot replicate，用 concrete contrast(controlled environment vs. dynamic scene, machine precision vs. human instantaneous judgment)来 make the abstract challenge tangible，最终 bring the exposition full circle。

    解释根本原因
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2002年考研英语真题 这篇原文的实际行文顺序给出，每步说明看哪里、看出什么，可直接迁移到其他考研英语文章。

  1. 首段因果动词定位主题 P1

    说明文的 opening paragraph 通常会在前两三句内明确提出 topic，而非像议论文那样铺垫背景。通过抓住 resulted in robotics 这种因果关系的动词结构，能立即锁定文章的 subject matter 是机器人技术，而不是泛泛的工具发明史。

  2. 并列例证提炼共性 P2

    说明文常用 exemplification 来展开 topic 的某个 aspect。当看到一个段落用 parallel structures 列举多个 examples 时，这些 examples 共同指向的 category 就是这部分的 sub-topic。第2段 的多个 examples 都指向 intelligent gizmos 和 labor-saving function，确认了机器人技术当前的 utility level。

  3. 转折标记揭示局限 P3

    说明文在描述完 current state 后，常用 adversative transitions (But, However, Yet) 引入 problem 或 limitation。这种 contrast 是判断文章主旨 scope 的关键——它告诉你文章不只是描述 what is，还要讨论 what's lacking。第3段 的 challenge 表明主旨必须包含 difficulty 或 obstacle 这个维度。

  4. 后续段落深化难点 P4 P5

    说明文在提出 challenge 后会用 explanatory paragraphs 来 elaborate on causes 或 underlying reasons。第4段-5 的 pattern 是典型的 problem elaboration：先用 evidence (mixed results, extended forecast) 证明 problem 的严重性，再用 scientific findings 解释 root cause (brain complexity)。这个 explanatory depth 表明 challenge 不是次要点，而是主旨的核心部分。

  5. 多维整合构建主旨 P1 P2 P3 P4 P5

    说明文的主旨通常是 multi-component 的：它要说明 what (topic)、where we are (current state)、以及 what's the issue (challenge/limitation)。单纯说 'this text is about robotics' 过于 superficial，单说 'AI is hard' 又缺少 context。完整主旨需要整合 progression (evolution from X to Y) 和 obstacle (why further progress is difficult)。

主旨信号词 resulted in P1 challenge P3 can't yet P3 mixed results P4 far more complicated P5

MAIN IDEA · 主旨

这篇文章在说什么

这篇说明文阐述了机器人技术从节省劳动力的设备发展到日益智能化的机器的演变过程,同时强调了实现真正人工智能所面临的重大挑战——由于人类大脑功能和感知的复杂性,当前技术无法复制这些能力。
This expository text explains the evolution of robotics from labor-saving devices to increasingly intelligent machines, while highlighting the significant challenge of achieving true artificial intelligence due to the complexity of human brain functions and perception that current technology cannot replicate.
WORD INFERENCE · 生词推断

6 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。已收录进考研英语高频真题词集的单词可点击进入词条页。

  • gizmo 小机械装置;小器件

    我们来把这些 clues 串起来。首先，gizmos 被描述为 intelligent，这告诉我们它们是某种 technological devices。其次，它们 populate 了 modern world，但我们 barely notice their presence，这说明它们已经融入日常生活，变得 commonplace。第三，文中紧接着列举了 robot assembly arms、automated teller terminals、robot-drivers 这些具体 examples，都是 automated machines。最后，这些东西的 universal existence 已经 removed much human labor。综合起来：gizmo 指的是那些智能化的、自动化的、日常可见但容易被忽略的 mechanical devices or gadgets。

    修饰词限定+列举归纳+功能定位
  • hum 发出嗡嗡声;持续运转

    让我们整合这些 evidence。首先，从 sentence structure 看，factories hum to the rhythm of robot assembly arms 中，hum 描述的是 factories 在 robots 运作时的状态。其次，hum 的 phonetic quality 本身就模仿了一种 low, continuous sound，这与 machinery operation 的声音特征吻合。第三，通过 parallel structure 的对比（hum 对应 is done 和 are controlled），我们确认 hum 表示一种 ongoing operational state。综合起来：hum 在这里的意思是"发出嗡嗡声地运转"或"忙碌运作"，既包含 sound 也包含 activity 的含义。

    语音特征+句法环境+平行参照
  • spell 一段时间;一阵子

    我们整合一下 reasoning。首先，从 grammatical structure 看，a spell of initial optimism 中 spell 是个 noun，并且通过 of 连接一个 abstract noun（optimism），这是典型的 temporal quantifier pattern。其次，句子用 Despite 建立了 temporal contrast：1960s-1970s 的 optimism vs. lately 的 pessimism，说明 spell 指的是过去那个 finite time period。第三，initial 这个词强化了"最初的、短暂的"这一含义。综合这些 clues：spell 在这里是 noun，意思是"一段时间"或"一阵子"，尤其指相对短暂的时期。

    词性确认+搭配类比+时间对比
  • glimpse 瞥见;快速看一眼

    让我们串联这些 evidence。首先，从 temporal context 看，glimpse 发生在 rapidly changing scene 中，且后续动作用了 immediately 和 instantaneously 这样的 adverbs，说明 glimpse 本身必须是 quick action。其次，从 logical sequence 看，glimpse 是 perception process 的起点：先 glimpse，再 disregard irrelevant parts，最后 focus on key elements。只有先 take in the whole scene，后续 selective attention 才可能发生。第三，从 rhetorical contrast 看，作者用 glimpse 来对比 robots 在 controlled environment 中的 precise recognition，强调 human mind 在 dynamic situations 中的 rapid, holistic perception。综合起来：glimpse 作为 verb，意思是"快速看一眼"或"瞥见"，强调 speed 和 comprehensiveness。

    时间特征+动作链定位+对比凸显
  • compulsion 强烈的内驱力;难以抑制的冲动

    我们整合这些 reasoning。首先，从 anaphoric reference 看，That compulsion 指代前面提到的 people devising tools 这个 persistent tendency。其次，从 morphology 看，compel + -sion 的结构表示一种 strong drive or urge，而 context 中的 since the dawn, ever more cunning 这些表达强化了这种 drive 的 persistence and intensity。第三，从 causal logic 看，能够 result in robotics 这样一个 major scientific field 的 force 必须是 powerful and fundamental。综合起来：compulsion 是 noun，表示"强烈的内在驱动力"或"冲动"，强调这种 drive 是 persistent, powerful, and almost irresistible 的。

    回指追踪+词根强度+因果推力
  • quest 探索;(长期艰难的)追求

    整合这些 clues。首先，从 syntactic pattern 看，quest for + goal 这个结构表明 quest 是某种 goal-directed activity。而且 has produced results 说明这是 ongoing process。其次，从 discourse function 看，quest 出现在 Indeed 之后，用来 intensify 前面提到的 challenge，而且后续描述了 decades if not centuries 的 extended timeline，说明 quest 是 serious and long-term pursuit。第三，从 register 看，quest 是 elevated term，暗示这种 pursuit 是 ambitious and significant。综合起来：quest 是 noun，意思是"探索"或"追求"，尤其指 serious, long-term, ambitious pursuit of a significant goal。

    介词补语+强度标记+语域暗示
RHETORIC · 修辞手法

6 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。

  • 举例子

    P2

    文章通过 concrete examples 来展示 robotics 在 modern world 中的 universal existence。工厂里的 robot assembly arms、银行的 automated teller terminals、地铁的 tireless robot-drivers，以及能进行 brain and bone surgery 的 robot systems，这些 specific instances 让抽象的 labor-saving utility 变得 tangible and relatable。这种 exemplification 有效支撑了 main thesis：robots 已经 removed much human labor，但距离 true artificial intelligence 还有 significant gap。

    信号词 for example for instance such as including like as a result specifically in particular to illustrate namely

    仿写： 在写 expository text 时，问自己：我的 general statement 需要什么样的 concrete evidence？选择 examples 时要考虑：是否 representative？是否 relatable to readers？是否能 demonstrate the key point？模版：「主题句 + For instance/For example, [具体例子1], [具体例子2], and [具体例子3]. These examples demonstrate/illustrate [回扣主题].」记住 parallel structure 能让 multiple examples 更有 rhythm and coherence。

  • 列数字

    P2 P5

    文章运用 precise numerical data 来 emphasize the magnitude of challenges。「roughly one hundred billion nerve cells」这个 staggering number 凸显了 human brain 的 complexity，而「98 percent that is irrelevant」这个 percentage 展示了 human perception 的 remarkable efficiency。「Submillimeter accuracy」虽然不是 pure number，但 quantifies the precision level。这些 quantitative details 强化了 central argument：human cognitive abilities 远比 current robotics 更 sophisticated，支撑了 why true AI remains elusive 的 thesis。

    信号词 approximately roughly about nearly over more than percent billion million fraction of

    仿写： 写 technical exposition 时，strategic use of numbers 很关键。问自己：which aspect 需要 quantification to be convincing？避免 number overload—选择 most impactful figures。将 numbers 与 context 结合：「X nerve cells」比单纯的 number 更 meaningful when contrasted with machine capabilities。模版：「[主题] involves/contains/reaches approximately/roughly [数字] [单位], which demonstrates/indicates [意义]. In contrast/comparison, [对比对象] only [数字].」记住用 round numbers 或 approximations (roughly, approximately) 让 data 更 digestible。

  • 下定义

    P1

    文章在 opening paragraph 就 define robotics 为「the science of conferring various human capabilities on machines」。这个 precise definition 为 entire discussion 建立了 conceptual foundation，clarifying the scope 并 setting expectations。Definition 不仅 explains what robotics is，还 implicitly suggests its goal 和 limitations，为后文 discuss the gap between current achievements and true AI 做了 conceptual preparation。这是 expository writing 的 classic move：establish clear terminology before elaboration。

    信号词 is defined as refers to means is can be understood as — : in other words that is namely

    仿写： 写 definition 时要 balance precision and clarity。问自己：my target audience 对这个 term 有多少 prior knowledge？Classic definition pattern：「[Term] is [broader category] that [distinguishing features].」可以用 appositive structure 自然嵌入 definition：「robotics—the science of conferring human capabilities on machines—has evolved」。或用 colon：「The field centers on one goal: conferring human capabilities on machines.」记住 definitions 可以是 formal (dictionary-style) 或 functional (explaining purpose/function)，根据 rhetorical situation 选择。

  • 作比较

    P3 P4 P5

    文章的 most powerful rhetorical move 是 systematic comparison between human capabilities and machine limitations。第5段 中 detailed contrast 最为明显：robots 能 recognize machine panel errors「by a fraction of a millimeter in a controlled environment」，but human mind 能「glimpse a rapidly changing scene and immediately disregard the 98 percent that is irrelevant」。这种 point-by-point comparison 凸显了 human perception 的 superiority 和 flexibility，directly supporting the main thesis that true AI remains beyond reach。Comparison 不是为了 diminish robotics achievements，而是 contextualize the challenge。

    信号词 but however while whereas in contrast on the other hand compared to unlike yet although rather than

    仿写： 构建 effective comparison 时，首先 establish clear points of comparison—要比较 which specific aspects？用 parallel structure 增强 clarity：「X can do A, but Y can do B.」或「While X excels at A, Y surpasses it in B.」Signal words 很重要：but, however, while, whereas, in contrast, on the other hand。模版：「[对象A] can [能力A] in [条件A]. But/However, [对象B] can [能力B] [更高级的条件/结果], demonstrating [结论].」记住 comparison 应 serve your thesis—每个 contrast 都应 advance your argument，不是为了 compare 而 compare。

  • 引资料

    P3

    文章 quote Dave Lavery (NASA robotics program manager) 的话：「While we know how to tell a robot to handle a specific error, we can't yet give a robot enough 'common sense' to reliably interact with a dynamic world.」这个 expert testimony 增强了 credibility，因为 comes from authoritative source in the field。Quote 不仅 provides technical insight，还 uses accessible language (common sense) to explain complex limitations。引用 expert voice 是 strengthen argument 的 classic strategy，especially when discussing technical subjects where reader 需要 trust the author's claims。

    信号词 according to says notes argues observes states claims as [expert] puts it in the words of quotes ""

    仿写： 使用 quotations 时要 strategic。问自己：为什么 quote 而不是 paraphrase？通常因为 original wording 特别 powerful, precise, or authoritative。Integration 很关键：introduce the source (身份 establishes authority)，present the quote，然后 explain its significance。模版：「According to [专家] from [机构], "[quotation]." This suggests/demonstrates/reveals [你的解读].」或用 reporting verbs：notes, argues, observes, explains。记住 quote 应 support 而不是 replace your own analysis—你需要 explain why this quote matters to your argument。

  • 作诠释

    P1 P3 P4 P5

    文章在多处对 complex concepts 进行 elaboration and clarification。例如 第1段 解释 human compulsion to create tools 如何「resulted in robotics」，第3段 阐释「less human supervision」和「make at least a few decisions for themselves」这些 goals 为什么「pose a real challenge」。第4段 对「true artificial intelligence」的 quest 进行 nuanced interpretation—从 initial optimism 到 extended forecasts。这些 interpretive passages 不是简单 restate，而是 unpack implications, explain causality, 或 provide context，helping readers understand not just what, but why and how。

    信号词 that is in other words which means this suggests this indicates essentially put simply to clarify what this means is

    仿写： 写 interpretive passages 时要 think about reader's potential confusion。问：what needs unpacking? 用 explanatory phrases：「This means that...」「In other words...」「What this suggests is...」可以用 appositive structures 嵌入 clarification，或用 separate sentences 展开 elaboration。模版：「[概念/现象], which means/suggests/indicates [解释其意义或影响].」或「[陈述]. This is because [解释原因/机制].」记住 interpretation 应 add insight，不是 mere repetition—要 reveal implications 或 explain causality that isn't immediately obvious。

IMPLIED MEANING · 言外之意

8 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。

  • 机器人技术尚未达到科幻小说的水平

    P1
    And if scientists have yet to create the mechanical version of science fiction, they have begun to come close.

    让步类 yet but however although though while even though

    这个 implication 是在告诉 readers:虽然 current robotics 还没有达到 science fiction 里那种 fantastical level,但是 scientists 已经取得了 significant progress 并且正在 approaching that goal。对于这篇 expository article 的 main idea 来说,这个 subtext 起到了 setting realistic expectations 的作用,为后面 elaborate on current achievements 和 remaining challenges 做 foundation。它的 value 在于建立一个 balanced perspective,既不 overstate current capabilities 也不 dismiss the progress made,这样能让 readers 更 objectively 理解 robotics development 的 actual state。

  • 机器人的存在已经变得如此普遍以至于被忽视

    P2
    the modern world is increasingly populated by intelligent gizmos whose presence we barely notice but whose universal existence has removed much human labor

    程度副词类 barely notice barely hardly scarcely rarely seldom almost imperceptibly

    这个 implication 传递的是:robots 已经 so thoroughly integrated into modern life that 人们甚至不再 consciously aware of their presence,这恰恰 demonstrates their success 和 pervasiveness。对于 main thesis 来说,这个 subtext 的 role 是 illustrate the extent of robotics' impact on society,支持文章关于 robots have become labor-saving devices 的 argument。它的 value 在于通过一个 paradoxical observation 来 emphasize a point:真正 successful 的 technology 往往是那些 become so commonplace that we take them for granted 的技术。这为后续 discuss more advanced robotic applications 提供了 contextual foundation。

  • 机器人实现下一阶段发展面临真正的挑战

    P3
    But if robots are to reach the next stage of laborsaving utility, they will have to operate with less human supervision and be able to make at least a few decisions for themselves—goals that pose a real challenge.

    转折类 But but however yet nevertheless nonetheless still

    这个 implication 清楚地表达:尽管 current robots 很 successful,但要 achieve the next level 需要 overcome significant obstacles,特别是 autonomy 和 decision-making 方面的 challenges。对于文章的 central thesis 来说,这个 turning point 的 function 是 transition from celebrating past achievements 转向 examining future barriers,specifically the gap between current capabilities and true artificial intelligence。它的 strategic value 在于 set up the framework for the subsequent paragraphs,which will elaborate on why achieving AI is so difficult。这个 but 实际上是整篇文章的 structural hinge,connecting the optimistic first half with the more realistic assessment of challenges in the second half。

  • 给机器人足够的常识仍然无法实现

    P3
    we can't yet give a robot enough 'common sense' to reliably interact with a dynamic world

    否定模态词组 can't yet cannot yet have not yet are unable to fail to lack the ability to are incapable of

    这个 NASA expert 的 quote 的 underlying message 是:机器人技术在 common sense reasoning 方面存在 fundamental gap,这是 preventing robots from truly autonomous operation 的 critical bottleneck。对于 article's main argument 来说,这个 expert testimony 的 function 是 provide authoritative evidence 支持前面提到的 challenge,同时 introduce the concept 为下一段关于 AI research setbacks 做 transition。它的 rhetorical value 在于用 expert voice 来 validate the difficulty,增强 credibility,同时通过'common sense'这个看似 simple 的 concept 来 illustrate 问题的 complexity。这个 implication 实际上是在说:我们面对的不是 simple technical problem,而是 fundamental cognitive challenge。

  • 人工智能研究产生了非常混合的结果

    P4
    Indeed the quest for true artificial intelligence has produced very mixed results.

    模糊限制语 very mixed results mixed results somewhat rather relatively to some extent partially successful

    这个 statement 的 real implication 是:AI research 并没有实现早期的 optimistic predictions,实际进展远 less impressive than expected。对于 main thesis 来说,这个 evaluation 的 role 是 introduce a discussion of AI development setbacks,为接下来 explain why predictions have been pushed back 做 setup。它的 strategic function 在于用一个 diplomatic 的 phrase 来 acknowledge failure without sounding overly negative。'Very mixed results'实际上是在说'disappointing results',但通过 hedging 保持了 academic objectivity。这个 implication matters because it 建立了 realistic expectations,帮助 readers understand that AI development 比最初 anticipated 要 much more difficult。

  • 人工智能实现时间预测大幅延后

    P4
    researchers lately have begun to extend that forecast by decades if not centuries

    极端程度表达 by decades if not centuries if not centuries or even possibly even perhaps as much as exponentially dramatically

    这个 implication 强烈地表明:AI research community 已经 drastically revised their expectations downward,从曾经的 near-term optimism 转变为 recognition that true AI may take generations to achieve。对于 article's argument 来说,这个 dramatic time extension 的 function 是 illustrate the enormous gap between early predictions and current understanding,支持文章关于 AI 是一个 formidable challenge 的 thesis。它的 rhetorical power 在于通过 stark contrast between 1960s-70s optimism 和 current reality 来 emphasize just how difficult the problem has proven to be。这个 statement 为最后一段 explain the underlying reasons for this difficulty 做 critical setup,showing readers that 这不是 minor setback 而是 fundamental reassessment。

  • 人脑能力远超先前想象

    P5
    the human brain's roughly one hundred billion nerve cells are much more talented—and human perception far more complicated—than previously imagined

    对比类 far more complicated—than previously imagined far more...than much more...than significantly more complex than contrary to previous belief beyond what was thought exceeds expectations

    这个 comparison 的 underlying message 是:科学家们 initially underestimated the complexity of human brain and perception,现在才 realize 要 replicate these capabilities 比 originally thought 要 vastly more difficult。对于 article's central argument 来说,这个 revelation 的 function 是 provide the fundamental explanation for why AI progress has been disappointing,直接 address the question of 'why has the timeline been extended by decades or centuries'。它的 analytical value 在于 shift focus from external factors to the core scientific challenge:人脑的 complexity far exceeds 早期 AI researchers 的 understanding。这个 insight 为最后的 specific examples 做 foundation,showing that 问题不在于 lack of effort 而在于 underestimating the target we're trying to replicate。

  • 最先进的计算机系统无法接近人类认知能力

    P5
    The most advanced computer systems on Earth can't approach that kind of ability

    否定情态词组 can't approach cannot match unable to replicate fail to achieve fall short of nowhere near not even close to

    这个 statement 的 core implication 是:尽管我们拥有 Earth 上最 powerful 的 computing systems,它们在 perceptual and cognitive abilities 方面 still fundamentally inferior to human minds,这个 gap 是 qualitative 而非仅仅 quantitative。对于文章的 main thesis 来说,这个 capability comparison 的 function 是 provide concrete evidence for why AI remains elusive,supporting the earlier claim about extended timelines。它的 rhetorical strength 在于用'most advanced'这个 superlative 来 emphasize that 即使是 best available technology 也 cannot approach human abilities,这 underscores 问题的 fundamental nature。这个 implication 为最后一句 about neuroscientists' lack of understanding 做 transition,suggesting that 我们甚至不 fully understand what we're trying to replicate,这使得 challenge even more daunting。

AUTHOR ATTITUDE · 作者态度

作者态度：客观中立

结论先行：本文作者态度为客观中立（ Cautiously optimistic with realistic acknowledgment of limitations）。下面是按步骤还原的判断过程与文中的态度信号词。

  1. 首段定调词识别 P1

    说明文的 opening paragraph 往往 reveal 作者的 basic stance。如果作者用 celebratory language 来 introduce the subject，说明他对这个 topic 持 favorable view；反之如果用 warning words 或 critical tone，则表明 skeptical attitude。这里的 'dawn of human ingenuity' 和 'come close' 都显示出 positive acknowledgment。

  2. 成就与局限篇幅对比 P2 P3 P4 P5

    说明文作者的 attitude 体现在他如何 allocate space 给 positive aspects 和 negative aspects。如果 heavily weighted toward achievements 就是 optimistic；如果 predominantly focus on problems 就是 pessimistic。这篇文章 equally presents both sides，showing balanced perspective。关键是看 transitional markers like 'but' 的位置和频率。

  3. 专家引述语气分析 P3 P4

    说明文中 quotations 和 expert opinions 是作者 credibility 和 attitude 的重要 indicators。如果 quoted experts 用 alarmist language，作者 likely shares concern；如果 experts 用 measured assessments，作者 tends toward balanced view。这里的 'we can't yet' 比 'we will never' 更 hopeful，'extend forecast' 比 'abandon hope' 更 constructive，显示 realistic but not defeated attitude。

  4. 结尾语气定性 P5

    说明文的 ending 往往 crystallize 作者的 ultimate position。如果结尾用 'therefore we must abandon' 这类 conclusive negative statements，显示 pessimistic attitude；如果用 'further research is needed' 或 'challenges remain' 这类 open-ended statements，显示 constructive neutrality。这里的 'still don't know' 暗示 ongoing inquiry，不是 final defeat，符合 scientific realism。

  5. 全文论述均衡度 P1 P2 P3 P4 P5

    说明文的 author attitude 最终要看 overall proportionality 和 tonal consistency。这篇文章 neither over-celebrates nor over-criticizes，maintains professional distance while showing intellectual engagement。关键 indicator 是作者 presents challenges not as reasons to quit，而是 as current state of affairs that researchers continue addressing。这种 'problems exist but work continues' 的 framework 是 典型的 neutral-to-cautiously-optimistic stance。

文中的态度信号词

  • come close P1

    这个 phrase 在说明文中 signal 'not yet achieved but significant progress made'，体现作者承认 current limitations 的同时 acknowledge meaningful advancement。'Come close' 比 'far from' 更 positive，比 'fully achieved' 更 realistic，perfectly captures the cautious optimism——作者认为 scientists haven't created science fiction robots 但 'have begun to come close'，这种 qualified affirmation 是 balanced attitude 的典型 marker。

    同类词 approach near achievement almost realize getting there make progress toward

  • but P3

    Contrastive connector 'but' 在 第3段 开头 signal 作者要 introduce limitations after describing achievements。这个 transition word 是说明文中 balance different perspectives 的核心 device。它的位置很关键——after positive 第2段，引入 'robots will have to operate with less supervision' 这个 challenge。'But' 的使用显示作者不是 one-sided advocate，而是 fair presenter of both sides，maintaining journalistic objectivity。

    同类词 however yet nevertheless though although

  • can't yet P3

    Modal phrase 'can't yet' 是 temporal qualification 的典型，在说明文中 indicate 'current inability with future possibility'。Dave Lavery 说 'we can't yet give a robot enough common sense'——'yet' 这个 adverb 完全改变了 statement 的 implication。Without 'yet' 就是 'we can't'，表示 permanent limitation；with 'yet' 变成 'we can't now but may eventually'，保留 future hope。这个 subtle word choice reflects 作者通过 expert voice 传达的 realistic but not defeatist attitude。

    同类词 not yet able to haven't yet achieved still cannot currently unable to so far unable to

  • mixed results P4

    Evaluative phrase 'mixed results' 直接 label 作者对 artificial intelligence quest 的 assessment。在说明文中这类 explicitly balanced evaluations 是作者 refusing to take extreme position 的 clear signals。'Mixed' 意味着 neither wholly positive nor wholly negative，perfectly encapsulating the neutral-realistic stance。作者用这个 phrase 来 characterize decades of AI research，showing他 acknowledge both progress ('initial optimism', 'transistor circuits and microprocessors') 和 setbacks ('extend forecast by decades')。

    同类词 varied outcomes partial success some progress limited achievements uneven development

  • still P5

    Temporal continuity marker 'still' 在结尾句 'neuroscientists still don't know quite how we do it' 中 indicate ongoing state of ignorance，但 crucially 它暗示 continuous effort to know。'Still don't know' 在说明文中 differs from 'will never know'——前者 implies active inquiry continues，后者 implies futility。作者选择 'still' 而不是 conclusive language，maintain open-ended perspective to the end，consistent with the realistic-but-not-defeated tone throughout the article。

    同类词 yet as yet so far to date up to now

  • far greater precision P2

    Intensifying comparative 'far greater' 在描述 robot surgery precision 时 emphasize substantial advantage over human capability。这个 strong positive evaluation 在说明文中 demonstrate 作者 willingness to celebrate genuine achievements。'Far' amplifies 'greater'，showing作者不是 grudgingly admitting progress 而是 genuinely impressed。这种 enthusiastic acknowledgment of robot superiority in specific domains balances 文章后面对 limitations 的 discussion，contribute to overall neutral-positive tone。

    同类词 far greater significantly better much more considerably superior vastly improved

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，可直接迁移到其他考研英语 真题文章。

如何快速判断这是一篇说明文？

  1. 首段话题引入模式 P1

    第1段 开篇就 introduces robotics 这个 subject，说明它是 conferring human capabilities on machines 的 science。这种 defining 和 introducing a topic 的方式是典型的 expository writing pattern，而不是 presenting an argument（议论文）或 reporting breaking news（新闻报道）。

  2. 段落展开逻辑 P2 P3 P4 P5

    第2段 用 concrete examples（factories、banking、subway trains、surgical robots）来 demonstrate robotics 在 modern world 的 applications，这是纯粹的 factual illustration，没有 argumentation 或 persuasion。第3段-5 则按 logical progression 展开：current limitations → historical development → technical challenges，这是典型的 expository structure。

  3. 作者立场中立性 P1 P2 P3 P4 P5

    全文的 tone 是 informative 和 objective 的，作者只是 presenting facts about robotics development，引用 expert opinion（Dave Lavery）来 explain technical challenges，而不是 advocating for or against robotics。没有 should、must、ought to 等 prescriptive language，也没有 emotional appeals。

  4. 三元特征综合判定 P1 P2 P3 P4 P5

    本文完全符合说明文的三元特征：第1段 establishes explanatory purpose（explain robotics），第2段-5 provide factual information 和 logical analysis（applications、limitations、research progress），全文 maintains objectivity without taking sides。没有议论文的 thesis-driven argumentation，也没有新闻报道的 timeliness 和 event-focused structure。

哪些词暴露了说明文体裁？

  • robotics—the science of P1 说明对象定义解释词 robotics—the science of... X is defined as... X refers to... X means... what is called X
  • As a result P2 说明顺序与逻辑关联词 as a result consequently therefore thus hence
  • hum to the rhythm of robot assembly arms P2 事物属性功能描述词 X functions as... X operates by... X is used to... X can perform... X is capable of...
  • done at automated teller terminals P2 事物属性功能描述词 X functions as... X operates by... X is used to... X can perform... X is capable of...
  • controlled by tireless robot-drivers P2 事物属性功能描述词 X functions as... X operates by... X is used to... X can perform... X is capable of...
  • robot systems that can perform P2 事物属性功能描述词 X functions as... X operates by... X is used to... X can perform... X is capable of...
  • with submillimeter accuracy P2 事物属性功能描述词 with X accuracy at X precision X level of performance to X degree X measurement/specification
  • But if robots are to reach P3 说明顺序与逻辑关联词 if X, then Y in order to X, Y must... to achieve X, Y requires... X depends on Y X necessitates Y
  • says Dave Lavery, manager of a robotics program at NASA P3 说明对象定义解释词 says [expert name], [title/affiliation] according to [expert] [expert] explains that... [expert] notes that... as [expert] points out
  • Indeed P4 说明顺序与逻辑关联词 indeed in fact actually as a matter of fact to be specific
  • Despite a spell of initial optimism P4 说明顺序与逻辑关联词 despite X, Y... although X, Y... while X, Y... in spite of X, Y... even though X, Y...
  • What they found P5 说明对象定义解释词 what X found is that... the discovery was that... research revealed that... findings show that... evidence indicates that...
  • They have built robots that can recognize P5 事物属性功能描述词 X functions as... X operates by... X is used to... X can perform... X is capable of...
  • But the human mind can glimpse P5 说明顺序与逻辑关联词 X can..., but Y can... while X does A, Y does B X achieves A, whereas Y achieves B on one hand X, on the other hand Y X has capability A, in contrast Y has B
SENTENCE INSIGHTS · 句子精讲

6 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 2002年考研英语真题 Section II Part A (2) 的常见问题

2002年考研英语真题 Section II Part A (2) 文章 的原文出自哪里？
有关机器人学的一本专著 Hope: Reunification of Mankind(《希望:人类的重新统一》)。
2002年考研英语真题 Section II Part A (2) 文章的主旨是什么？
2002年考研英语真题 Section II Part A (2) 文章说明文阐述了机器人技术从节省劳动力的设备发展到日益智能化的机器的演变过程,同时强调了实现真正人工智能所面临的重大挑战——由于人类大脑功能和感知的复杂性,当前技术无法复制这些能力。（英文表述：This expository text explains the evolution of robotics from labor-saving devices to increasingly intelligent machines, while highlighting the significant challenge of achieving true artificial intelligence due to the complexity of human brain functions and perception that current technology cannot replicate.）
2002年考研英语真题 Section II Part A (2) 文章是什么体裁？难度如何？
体裁为说明文，作者立场是客观中立（Cautiously optimistic with realistic acknowledgment of limitations）。CEFR 难度 C1，全文 414 词、5 段；在考研英语全部 70 篇真题文章中，C1 级共 64 篇（占 91%）。
2002年考研英语真题 Section II Part A (2) 文章的篇章结构是怎样的？
全文 5 段按说明文骨架分为 5 个意群：第1段——机器人技术的起源与定义；第2段——现代机器人的广泛应用现状；第3段——机器人发展面临的关键挑战；第4段——人工智能探索的曲折历程；第5段——人脑复杂性导致AI瓶颈的深层原因。
2002年考研英语真题 Section II Part A (2) 文章的作者态度是什么？
作者态度是客观中立（Cautiously optimistic with realistic acknowledgment of limitations）。判断路径：首段定调词识别 → 成就与局限篇幅对比 → 专家引述语气分析 → 结尾语气定性 → 全文论述均衡度；文中的态度信号词包括 come close（第1段）、but（第3段）、can't yet（第3段）、mixed results（第4段）、still（第5段）、far greater precision（第2段）。
2002年考研英语真题 Section II Part A (2) 文章中有哪些值得积累的生词？
按文中出现顺序共 6 个：gizmo（小机械装置;小器件）、hum（发出嗡嗡声;持续运转）、spell（一段时间;一阵子）、glimpse（瞥见;快速看一眼）、compulsion（强烈的内驱力;难以抑制的冲动）、quest（探索;(长期艰难的)追求），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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