懒笔记
1998年考研英语真题 Section II Part B
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1998年考研英语真题 Section II Part B

说明文 · 英译汉（划线句子翻译） · 真题文章逐层精读

本页是 1998年考研英语真题 Section II Part B 文章的精读视角页——这篇说明文全文 376 词、4 段，CEFR 难度 C2（C2 级在考研英语文章中占 7%），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

4 段英文原文

以下为1998年考研英语真题 Section II Part B 的英译汉（划线句子翻译）原文，共 4 段。左侧 P1–P4 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。

They were, by far, the largest and most distant objects that scientists had ever detected: a strip of enormous cosmic clouds some 15 billion light-years from earth. But even more important, it was the farthest that scientists had been able to look into the past, for what they were seeing were the patterns and structures that existed 15 billion years ago. That was just about the moment that the universe was born. What the researchers found was at once both amazing and expected: the US National Aeronautics and Space Administration's Cosmic Background Explorer satellite—Cobe—had discovered landmark evidence that the universe did in fact begin with the primeval explosion that has become known as the Big Bang (the theory that the universe originated in an explosion from a single mass of energy).

The existence of the giant clouds was virtually required for the Big Bang, first put forward in the 1920s, to maintain its reign as the dominant explanation of the cosmos. According to the theory, the universe burst into being as a submicroscopic, unimaginably dense knot of pure energy that flew outward in all directions, emitting radiation as it went, condensing into particles and then into atoms of gas. Over billions of years, the gas was compressed by gravity into galaxies, stars, planets and eventually, even humans.

Cobe is designed to see just the biggest structures, but astronomers would like to see much smaller hot spots as well, the seeds of local objects like clusters and superclusters of galaxies. They shouldn't have long to wait. Astrophysicists working with ground-based detectors at the South Pole and balloon-borne instruments are closing in on such structures, and may report their findings soon.

If the small hot spots look as expected, that will be a triumph for yet another scientific idea, a refinement of the Big Bang called the inflationary universe theory. Inflation says that very early on, the universe expanded in size by more than a trillion trillion trillion trillion fold in much less than a second, propelled by a sort of antigravity. Odd though it sounds, cosmic inflation is a scientifically plausible consequence of some respected ideas in elementary particle physics, and many astrophysicists have been convinced for the better part of a decade that it is true.

PARAGRAPHS · 逐段精读

4 段逐段主旨与解读

逐段拆解1998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

    Cobe's Landmark Discovery

    Cobe's detection of ancient cosmic clouds provided landmark evidence for the Big Bang.

    本段承担全文的开篇与立论功能，先呈现 Cobe 的重大 observation，再把它连接到 Big Bang。 它为后文解释大爆炸的理论内容、寻找更小结构以及验证 inflation 铺设了逻辑起点。

    发现指向大爆炸证据
  2. P2

    How the Big Bang Explains the Universe

    The giant clouds support the Big Bang theory, which explains the universe's evolution from energy to matter and life.

    本段把第一段的发现转化为可理解的 theoretical framework，回答了“为什么巨型云团如此重要”这一问题。 它使读者理解 Big Bang 不只是一个名称，而是解释宇宙 origin and development 的完整模型。

    云团印证宇宙演化
  3. P3

    The Search for Smaller Hot Spots

    Scientists are seeking smaller hot spots that may seed local cosmic structures, and new instruments may soon detect them.

    本段在全文中起承上启下作用：它承接 Cobe 对巨大结构的发现，同时把焦点推进到尚未证实的 smaller structures。 这一 research question 直接为第四段检验 inflationary universe theory 创造条件。

    寻找更小宇宙热点
  4. P4

    Testing the Inflationary Universe Theory

    The discovery of expected small hot spots could confirm the inflationary theory of rapid early cosmic expansion.

    本段完成全文的最终理论升级：文章从 Cobe 支持 Big Bang，进一步走向用小热点验证 inflation。 它说明科学探索的下一步不仅是发现更多 structures，更是借新证据 refined and test 既有宇宙理论。

    小热点检验暴胀理论
SELF CHECK · 段落自检题

4 道逐段细节自检题

针对1998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 Cobe landmark evidence

    What did Cobe's discovery provide landmark evidence for?

    • A Cosmic clouds are the largest objects in the universe.
    • B Scientists can directly observe the birth of the universe.
    • C The universe began with the Big Bang.
    • D Radiation condensed directly into galaxies and planets.
    • E The inflationary universe theory had been confirmed.
    • F Earth is 15 billion light-years from the cosmic clouds.
    显示答案与解析 收起答案与解析

    正确答案：C

    正确项准确复述了 Cobe 发现所构成的 evidence 的结论端：文章明确把发现界定为支持 universe did in fact begin with the Big Bang 的 landmark evidence。选项把较长的原句压缩为 began 与 Big Bang，属于考研常见的同义概括，而没有擅自扩大为“完全解释宇宙”。障碍在于原文前面同时出现 cosmic clouds、15 billion light-years 和 patterns and structures；这些都是真实信息，却只是观测对象或观测意义，不是 evidence 最终证明的命题。

    截取that从句 时间紧张时，直接用专名 Cobe 锁定 第1段，不必顺读整篇。随后采用“谓语宾语截取法”：只读取 Cobe had discovered landmark evidence that 之后的 that 从句，并把其余距离、年代、云层描写暂时遮蔽。题目问 evidence for，正确项必是该 that 从句的压缩改写；用这一句法骨架可迅速排掉所有只复述观测细节的选项。

  2. 第 2 段 定位词 gas over billions of years

    According to the Big Bang theory, what happened to gas over billions of years?

    • A It emitted radiation in all directions.
    • B It became a submicroscopic knot of pure energy.
    • C It formed local hot spots detected by Cobe.
    • D It was compressed by gravity into galaxies, stars, and planets.
    • E It expanded by more than a trillion trillion trillion trillion fold.
    • F It turned directly into humans.
    显示答案与解析 收起答案与解析

    正确答案：D

    该项完整保留了原文的对象 gas、机制 gravity 和结果 galaxies, stars, planets，且与 over billions of years 的长期过程精确对应。命题障碍在于原文使用被动语态 was compressed，选项可能改写为主动或省略过程；考生必须守住“气体受引力压缩”这一因果关系。正确项没有把 eventually, even humans 误解成气体直接变成人类，而是保留了文本最稳定的结构演化层级。

    气体右扫 可用“中间名词右扫法”快速处理：由题干 gas 直接锁定 第2段，然后从 gas 第一次出现处只向右扫到句号，不回读前面的 pure energy。把谓语骨架压成 gas—compressed—gravity—galaxies/stars/planets，正确项必须同时匹配这三类槽位。这个方法比逐项翻译更快，也能立刻识破顺序倒置项。

  3. 第 3 段 定位词 Cobe designed to see

    What are astronomers hoping to observe beyond the structures Cobe is designed to see?

    • A Only the biggest structures in the universe.
    • B The primeval explosion itself.
    • C A submicroscopic knot of pure energy.
    • D The effects of antigravity on planets.
    • E Much smaller hot spots, the seeds of local cosmic structures.
    • F Already confirmed clusters of galaxies.
    显示答案与解析 收起答案与解析

    正确答案：E

    正确项对应 astronomers would like to see much smaller hot spots as well，并保留其作为 local objects like clusters and superclusters of galaxies 的 seeds 这一说明。它用 local cosmic structures 概括后面的举例，属于合理上位改写。障碍在于题干先提 Cobe 能看的 biggest structures，容易让考生重复选择最大结构；而 beyond 与 hoping to observe 明确要求转向尚未由该仪器覆盖的更小尺度目标。

    but后取宾 高压时间下，抓住题干的 designed to see，直接定位 第3段，并执行“but 后截取法”。不要先理解 Cobe 能观测什么；先跳到 but 后面，提取 would like to see 的宾语，再用 beyond 反向核验。正确项必须是这个宾语的同义改写，且应保留 smaller 与 hot spots 两个信息核。

  4. 第 4 段 定位词 small hot spots look as expected

    If small hot spots look as expected, which theory would receive strong support?

    • A The original Big Bang theory alone.
    • B The theory that gravity creates radiation.
    • C The theory that Cobe can detect all cosmic structures.
    • D The theory that humans formed before galaxies.
    • E The theory that the universe never expanded.
    • F The inflationary universe theory.
    显示答案与解析 收起答案与解析

    正确答案：F

    原文的条件句明确说明：若 small hot spots look as expected，这将成为 inflationary universe theory 的 triumph。正确项精确保留理论名称，没有把它泛化为任何宇宙起源理论。障碍在于 inflation 是 Big Bang 的 refinement，二者高度相关；命题人容易诱导考生选择较宽泛、前文已获 evidence 的 Big Bang。还要注意 would receive strong support 对应条件性的 triumph，并不意味着该理论在当前已经获得最终证明。

    条件箭头终点 最快路径是用 small hot spots 加 look as expected 定位 第4段，然后采用“条件句箭头法”：只画 If 之后的现象，沿箭头读取 that will be a triumph for 后面的理论名。正确项就是箭头终点的等义名称。此法刻意跳过关于 trillion fold、antigravity 和 particle physics 的解释细节，因为它们只解释理论内容，不回答“哪一理论获得支持”。

STRUCTURE · 篇章结构

4 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

    重大发现的引入与意义

    这个意群作为 opening 引入了 Cobe satellite 的 landmark discovery，强调这些 cosmic clouds 距离地球 15 billion light-years，关键在于scientists能够 look into the past 看到 universe birth 时刻的 patterns and structures，最终揭示这个 discovery 提供了 evidence 支持 Big Bang theory 即universe originated from a primeval explosion。

    作为说明文的 introduction part，这个意群establish了整篇文章的 central topic，通过presenting the discovery和highlighting its significance来hook读者注意力，同时为后续的 detailed explanation 奠定了factual foundation，符合说明文'提出对象-展开说明'的典型开篇方式。

    直接陈述核心发现
  2. P2

    大爆炸理论的详细阐释

    这个意群深入explain了Big Bang theory的mechanisms和historical context，说明giant clouds的existence是virtually required来maintain这个theory作为dominant explanation，然后详细描述theory的core process：universe从submicroscopic dense knot开始burst into being，through radiation、condensing into particles和atoms，最终over billions of years通过gravity compressed形成galaxies、stars、planets甚至humans。

    作为说明文的explanation section，这个意群fulfill了essential function即provide background knowledge让readers理解why the discovery matters。它通过tracing the theory's development和detailing the cosmic evolution process来demonstrate发现的significance，这种from theory to evidence的logical flow是expository writing的classic pattern，帮助readers建立comprehensive understanding of the context。

    阐释被证实理论
  3. P3

    后续研究的方向与进展

    这个意群shift focus到future research directions，指出Cobe虽然designed to see biggest structures但astronomers希望see smaller hot spots作为seeds of local objects like clusters and superclusters。意群强调scientists shouldn't have long to wait，因为astrophysicists working with ground-based detectors和balloon-borne instruments正在closing in on这些structures并may report findings soon。

    作为说明文的extension section，这个意群demonstrate了scientific inquiry的progressive nature，从第1段的macro-level discovery transition到micro-level investigation。这种from established findings to ongoing research的progression是scientific exposition的typical pattern，它show读者这个field is dynamic and evolving，同时也为第4段关于inflationary theory的discussion做铺垫，体现说明文logical development的连贯性。

    指向更小尺度探索
  4. P4

    精细理论的引入与验证前景

    这个意群introduce了inflationary universe theory作为Big Bang的refinement，解释如果small hot spots look as expected将是triumph for this theory。意群详细describe了inflation的mechanism即universe在very early stage通过antigravity实现了dramatic expansion。最后强调虽然sounds odd但cosmic inflation是scientifically plausible consequence基于respected ideas in particle physics，且many astrophysicists已convinced it is true。

    作为说明文的elaboration and conclusion section，这个意群complete了文章的logical arc，从第1段的discovery通过第2段的theory explanation和第3段的research direction最终arrive at更refined theoretical framework。这种from evidence to basic theory to refined theory的progression展示scientific understanding的hierarchical nature，同时circle back to主旨中提到的confirming inflationary theory，给文章带来closure和conceptual completeness，符合说明文'层层深入、收束主题'的结构特征。

    连接待证实理论
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1998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. 锁定首段首尾句 P1

    说明文的 first paragraph 通常会 present 最 important 的 information，开头句 introduce topic，结尾句往往 reveal 核心 finding 或 significance，这种 structure 能让我们在 seconds 内 grasp 文章的 main point。

  2. 捕捉专有名词 P1 P3

    说明文的 main idea 通常围绕 specific subjects 或 concrete discoveries 展开，proper nouns 能帮助我们 pinpoint 文章的 exact focus（这里是 Cobe satellite 的 discovery），而不是 abstract concepts。

  3. 寻找发现类动词 P1 P3

    说明文特别是 scientific texts 的 main purpose 常常是 to report findings 或 explain evidence，这些 outcome-focused words 直接 point to 文章的 central message——某个 discovery 或 verification。

  4. 验证段落关联性 P2 P3 P4

    说明文的 body paragraphs 应该 围绕 main idea 展开 supporting details 或 further explanation。如果后续段落的 topic sentences 都在 expand on 首段提到的 discovery（这里是 Big Bang theory、smaller structures、inflationary theory），就 confirms 首段 contains 真正的 main idea。

  5. 应用主旨公式 P1 P2 P3 P4

    说明文的 thesis 需要 balance specificity 和 comprehensiveness。一个 well-formed main idea 应该 capture 具体的 subject、核心的 action 或 finding，以及它的 broader significance，同时 acknowledge 文章 covers 的 related aspects（如 future research directions）。

主旨信号词 discovered P1 landmark evidence P1 Big Bang P1 even more important P1 required P2

MAIN IDEA · 主旨

这篇文章在说什么

美国宇航局的 Cobe 卫星探测到 150 亿光年外的巨大宇宙云，通过揭示宇宙诞生时的结构为大爆炸理论提供了里程碑式的证据,同时科学家正在寻找更小的结构以证实暴胀宇宙理论。
NASA's Cobe satellite detected enormous cosmic clouds 15 billion light-years away, providing landmark evidence for the Big Bang theory by revealing structures from the universe's birth, while scientists search for smaller formations to confirm the inflationary universe theory.
WORD INFERENCE · 生词推断

3 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。

  • primeval 原始的;最初的;远古的

    现在我们把three clues整合起来:第一,temporal context告诉我们这个explosion发生在universe刚born的moment;第二,prefix 'prim-'的morphological analysis指向'first'或'earliest';第三,subsequent paragraph用burst into being来describe同一event,confirming了initial creation的meaning。Three lines of evidence都point to同一个conclusion:primeval描述的是something belonging to the earliest time或original state。

    时间标记+词根+同义复现
  • submicroscopic 亚微观的;比显微镜可见范围更小的

    让我们synthesize这三条evidence:首先,semantic field给出了'extremely small and dense'的contextual hint;其次,morphological breakdown清晰显示'sub-'+'microscopic'表示beyond the limit of microscopes;最后,logical progression from submicroscopic到particles再到atoms,证实了这是describing比atomic level还要small的scale。这three perspectives converge on同一个precise meaning。

    前缀叠加+语义组合+尺度对比
  • inflationary 膨胀的;(宇宙)暴涨的

    整合our analysis:definitional clue直接告诉我们inflation equals rapid expansion;morphological analysis确认'-ary'suffix使其成为descriptive adjective;rhetorical relationship显示这是Big Bang theory的一个refined version,focused on expansion mechanism。这three independent sources of evidence都支持同一个interpretation:inflationary describes与rapid cosmic expansion相关的theoretical framework。

    术语定义+词根迁移+理论对比
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。

  • 列数字

    P1 P2 P4

    文章开篇就用 15 billion light-years 这个 astronomical figure 来强调 cosmic clouds 的距离之远，这种 precise measurement 让读者直观感受到 scientists 的 detection 有多么 remarkable。接着用 15 billion years ago 这个 time reference 把读者带回 universe birth 的那一刻,形成强烈的 temporal impact。第二段继续用 billions of years 描述 gas compression 的漫长过程,第四段更是用 trillion trillion trillion trillion fold 这种 exponential expression 来展现 inflation 的惊人 magnitude。这些 numerical data 不仅让 abstract cosmic concepts 变得 concrete and measurable,更重要的是通过 quantitative evidence 来支撑 Big Bang theory 的 scientific validity,让读者感受到这不是 speculation 而是基于 precise observation 的 landmark discovery。

    信号词 15 billion billions of trillion trillion trillion trillion 1920s just about submicroscopic

    仿写： 当你要写 scientific topics 时,问自己:这个 concept 能用什么 specific measurements 来表达?比如不说 'very far',而说 'x million kilometers away';不说 'ancient',而说 'x billion years ago'。关键是选择能让读者产生 immediate impact 的 numbers。你可以用这个模版:在描述 X(现象/对象)时,先给出 Y(具体数字+单位),再用这个 numerical reference 来引出 Z(核心观点)。比如:'The structure spans 15 billion light-years, making it the most distant object ever detected.'

  • 下定义

    P1

    文章在第一段用破折号明确定义了 Cobe 这个 abbreviation:'the US National Aeronautics and Space Administration's Cosmic Background Explorer satellite—Cobe',这种 immediate clarification 让读者立刻理解这个 technical term。更关键的是对 Big Bang 的定义:'the primeval explosion that has become known as the Big Bang (the theory that the universe originated in an explosion from a single mass of energy)',这个 nested definition 先给出 common name,再用括号提供 scientific explanation,层层递进地帮助读者建立 precise understanding。这种 definitional approach 对于说明文至关重要,因为 scientific discourse 充满 specialized terminology,如果不及时 define,读者就会在 conceptual fog 中迷失,无法跟上后续的 complex argumentation。

    信号词 — ( ) called known as is according to says that

    仿写： 写作时遇到 technical terms 或 unfamiliar concepts,立即用 apposition(同位语)或 parenthetical explanation(括号说明)来 define。模版可以是:'X—the Y that Z'(Cobe—the satellite that detects...)或'X (the theory that Y)'(Big Bang (the theory that...))。关键是 timing:第一次出现 specialized term 时就要定义,不要让读者 guess。另外,定义要 context-appropriate—给 general audience 的定义要比给 experts 的更 elaborate。可以问自己:如果读者完全不懂这个领域,我这个 definition 能让 TA 在 30 秒内 grasp the core idea 吗?

  • 作诠释

    P2 P4

    第二段对 Big Bang theory 的 elaboration 是典型的作诠释:'According to the theory, the universe burst into being as a submicroscopic, unimaginably dense knot of pure energy that flew outward in all directions...'这里不是简单地 define Big Bang,而是用 vivid language 来 unpack 这个理论的 mechanism 和 process。'burst into being'、'flew outward'、'condensing' 这些 dynamic verbs 把 abstract theory 转化成可以 visualize 的 sequence of events。第四段对 inflation theory 的诠释也类似:'Inflation says that very early on, the universe expanded...propelled by a sort of antigravity',用 'says that' 引出 theory 的 content,然后用 'propelled by' 来 explain the driving force。这种 interpretative approach 让 complex scientific concepts 不仅 understandable 还 imaginable,它通过 elaboration and contextualization 来填补 definition 和 full comprehension 之间的 gap。

    信号词 According to says that This means In other words That is To put it simply essentially

    仿写： 当你 define 了一个 complex concept 后,立即问:读者需要知道什么 additional information 才能真正 understand 它?然后用 'According to...', 'This means that...', 'In other words...' 等 transitional phrases 来引入 interpretative explanation。模版:'According to X(理论/概念), Y(过程/机制) happened/happens, resulting in Z(结果/影响)'。关键是用 concrete language—选择 action verbs 而非 abstract nouns,用 sequential structure 来展现 processes,用 analogies 来连接 unfamiliar concepts 和 familiar experiences。可以这样练习:选一个 technical term,先用一句话 define,再用三句话 interpret—第一句说 what happens,第二句说 how it happens,第三句说 why it matters。

  • 作比较

    P1 P3

    文章虽然没有用 explicit comparative structures,但隐含着 crucial comparisons。第一段说 'the largest and most distant objects that scientists had ever detected',这是把 current discovery 和 all previous detections 作比较,用 superlative forms 来突出这次发现的 unprecedented nature。第三段提到 'Cobe is designed to see just the biggest structures, but astronomers would like to see much smaller hot spots as well',这是在对比 current capability 和 future goal,说明 scientific inquiry 的 progressive nature。这种 comparative approach 让读者理解这个 discovery 在 scientific history 中的 relative position 和 significance,它不是 isolated achievement 而是 continuum of progress 中的 milestone。通过比较,abstract scientific advancement 变得 relatable and impressive。

    信号词 most largest ever than but as well more than less than unlike compared to

    仿写： 寻找 natural comparison points—时间上的(before vs. now, past vs. future)、规模上的(bigger vs. smaller)、能力上的(what we can do vs. what we want to do)。用 comparative and superlative forms 来 frame your subject。模版:'X is the most Y (superlative) that Z has ever V(过去完成时)',或 'Unlike A, B can/is...'。关键是选择 meaningful comparisons—不要 compare 只是为了 compare,每个 comparison 都要 serve a purpose,either to contextualize, to emphasize, or to clarify。问自己:这个 comparison 让我的 main point 更 clear 了吗?读者能从这个 contrast 中 learn something essential 吗?

  • 引资料

    P1 P2 P4

    文章 strategically cites scientific sources 来建立 credibility。第一段明确提到 'the US National Aeronautics and Space Administration's Cosmic Background Explorer satellite—Cobe',这个 full institutional reference 让读者知道 data source 的 authority。第二段引用 'the Big Bang, first put forward in the 1920s',这个 historical reference 说明这不是 new speculation 而是 established theory with decades of development。第四段提到 'some respected ideas in elementary particle physics',虽然没有 cite specific sources,但通过 'respected' 这个 qualifier 来 invoke scientific consensus。这种 citation practice 是说明文的 fundamental requirement,因为 scientific claims 必须是 verifiable and traceable,引资料让整个 argumentation 站在 solid evidential foundation 上而非 personal opinion。

    信号词 NASA Cobe first put forward in the 1920s According to theory astrophysicists respected ideas scientists

    仿写： 写 scientific topics 时,identify key claims 需要 external validation。对于 data and findings,cite specific sources(机构名、研究项目名);对于 theories,mention originators and timeframes;对于 consensus,用 'scientists agree', 'studies show', 'according to research' 等 phrases。模版:'According to X(机构/研究), Y(发现/数据)',或 'Z, first proposed by A in B(时间), suggests that...'。关键是 attribution—让读者知道 who said what and when。练习方法:写任何 factual statement 后问:这个信息从哪来?然后添加 appropriate citation。注意不要 over-cite(每句都引用会 disrupt flow),也不要 under-cite(关键 claims 缺乏 support)。

  • 分类别

    P1 P2 P3 P4

    文章暗含了 structural categorization 来组织 complex information。第一段到第二段实际上在 categorize different aspects of the Big Bang evidence:observational data(the clouds detected by Cobe)和 theoretical framework(the Big Bang theory itself)。第三段和第四段又形成另一个分类:current observations(big structures from Cobe)和 future targets(smaller hot spots)。这种 categorical organization 帮助读者 navigate complex scientific content—不是把所有信息 dump 在一起,而是 group related concepts,让 logical structure 清晰可见。虽然文章没有用 'firstly, secondly' 这种 explicit markers,但 paragraph structure 本身就体现了 implicit categorization,让 discourse 有 clear progression from observation to theory to future prospects。

    信号词 types kinds categories divided into consists of includes aspect part firstly secondly

    仿写： 写 complex topics 时,先 identify natural categories—比如 types, stages, components, perspectives。用 parallel paragraph structures 来 signal categories:每个 category 一个段落,用相似的 opening sentences。虽然可以用 explicit markers('There are three types...', 'first/second/third'),但更 sophisticated 的方式是让 content organization 自己说话。模版可以是:先给 overview sentence 暗示将有分类,然后每个段落 focus on one category。关键是 maintain parallelism—如果第一个 category 包含 definition + example + significance,其他 categories 也应该 follow similar structure。问自己:我的 categories cover all relevant aspects 吗?它们 mutually exclusive 吗?它们按什么 logic 排列?

IMPLIED MEANING · 言外之意

5 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。

  • 发现的重要性超越距离本身

    P1
    They were, by far, the largest and most distant objects... But even more important, it was the farthest that scientists had been able to look into the past

    转折递进类 But even more important more significantly more crucially but the real significance lies in what matters most is the key point, however, is even more striking is

    表面上作者 acknowledge 了 cosmic clouds 的 size 和 distance 这些 quantifiable features，但通过 'But even more important' 这个 emphatic transition，真正想 convey 的是：这个 discovery 让科学家能够 peer into 150亿年前的 universe，essentially witnessing the moment of cosmic birth。这个 implication 直接 serve 文章 thesis：为 Big Bang theory 提供 landmark evidence。它 establish 了整篇文章的 logical foundation —— 不是简单的 observation，而是能 verify cosmological theories 的 time-traveling evidence。

  • 发现结果既符合预期又令人惊叹的双重性

    P1
    What the researchers found was at once both amazing and expected

    矛盾并置类 at once both amazing and expected at once both...and simultaneously...yet paradoxically both surprising and predictable unexpected yet logical remarkably...while also

    这个 seemingly paradoxical description 其实 encode 了重要信息：'expected' 意味着 Big Bang theory 已经 predict 了这些 cosmic structures 的 existence，证明 theory 的 internal consistency；'amazing' 则 emphasize 首次 obtain empirical evidence 的 monumental significance。言外之意是：这不是 accidental discovery，而是 theory-driven prediction 得到 observational confirmation，这正是 scientific method 的 triumph。对 main thesis 的 value 在于 legitimize Big Bang theory —— 它不仅 logically sound，还能被 observation verify，因此 deserve 其作为 'dominant explanation of the cosmos' 的 status。

  • 理论地位依赖于证据支持

    P2
    The existence of the giant clouds was virtually required for the Big Bang... to maintain its reign as the dominant explanation

    模糊限制语类 virtually required essentially necessary practically indispensable all but certain nearly inevitable almost a prerequisite effectively mandatory

    表面上 'virtually required' 看似 留有余地，但 implication 其实很 strong：如果没有 discover 这些 giant clouds，Big Bang theory 的 dominant status 就会 be undermined。结合 'maintain its reign' 这个 metaphorical expression，言外之意是理论的 supremacy 不是 self-evident，而是 need continuous empirical support。这 reinforce 文章 main point：Cobe 的 discovery 不是锦上添花，而是 essential validation，确保 Big Bang theory 能 continue 作为 cosmos 的 leading explanation。它 highlight 了 scientific theories 的 provisional nature —— 需要 observational evidence 来 sustain。

  • 更细微结构发现的迫切性与可实现性

    P3
    They shouldn't have long to wait. Astrophysicists working with ground-based detectors... are closing in on such structures, and may report their findings soon

    委婉表达类 They shouldn't have long to wait shouldn't have long to wait it won't be long before should soon see are likely to report shortly ought not take much time can expect results before long

    这个 seemingly casual remark 实际 convey 两层 message：首先，scientists 非常 eager to detect smaller hot spots（因为这对 verify theories crucial）；其次，current technology and methodology 已经 mature enough to make discovery imminent。'Closing in' 这个 metaphor 暗示 target 已经 within reach。对 article thesis 的 contribution 是 establish narrative momentum：从 Cobe 的 large-scale discovery 到 upcoming small-scale confirmation，展现 scientific inquiry 的 progressive refinement。这 set up 第四段关于 inflationary theory 的 discussion，暗示一个 comprehensive validation 正在 unfold。

  • 理论看似荒谬实则科学可靠

    P4
    Odd though it sounds, cosmic inflation is a scientifically plausible consequence of some respected ideas in elementary particle physics

    让步类 Odd though it sounds Strange as it may seem Counterintuitive though it is Bizarre as this appears Though it seems unlikely Improbable as it sounds Despite how unusual this seems

    这个 concessive opening 暗示 inflationary theory 的 core concept（宇宙在 less than a second 内 expand by 超过 trillion trillion trillion trillion fold）确实 defy everyday intuition，甚至 sound absurd。但 'scientifically plausible' 和 'respected ideas in elementary particle physics' 这些 authoritative qualifiers 传达的 implication 是：科学 validity 不依赖 intuitive accessibility。言外之意是提醒 readers 不要用 common sense judge cutting-edge theories。对 main thesis 的 role 是 prepare readers 接受 upcoming evidence 对 inflation theory 的 potential confirmation，emphasize 即使 seems bizarre，这个 refinement of Big Bang theory 有 solid scientific grounding，因此 deserve serious consideration and empirical testing。

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（ Objective and Enthusiastically Supportive）。下面是按步骤还原的判断过程与文中的态度信号词。

  1. 开篇词汇的情感色彩 P1

    在说明文里，opening paragraph 的 word choice 能快速 reveal 作者的 stance。如果作者用 amazing、landmark、enormous 这类带有 positive connotation 的词汇来 describe scientific findings，说明他不是 purely objective reporter，而是带有 enthusiasm 和 appreciation 的。

  2. 理论描述的确定性程度 P2 P4

    在科学说明文中，作者如何 present the Big Bang theory 能体现他的 attitude。这篇文章用 maintain its reign as the dominant explanation 和 triumph for yet another scientific idea 这样的表达，显示作者 recognize and support 这个 theory 的 validity。他没有用 controversial、debated、questionable 这类 words，说明他站在 supportive side。

  3. 未来预测的确信度 P3 P4

    当作者说 they shouldn't have long to wait 和 may report their findings soon 时，他用的是 positive expectation 的 tone，不是 wait and see 的 cautious tone。这种 confidence in future results 表明他相信 current research direction 是 on the right track，体现了他的 supportive stance。

  4. 全文叙事的积极性走向 P1 P2 P3 P4

    综合来看，这篇说明文从头到尾都在 emphasize discoveries 的 significance（landmark evidence、at once both amazing and expected、triumph），没有 present any counterarguments 或 limitations。整个 narrative arc 是从 major discovery（段一）到 theoretical foundation（段二）到 future confirmation（段三、四），这种 progressive structure 体现了作者对这个 research field 的 enthusiasm 和 confidence，确定他是 objective but supportive 的态度。

文中的态度信号词

  • amazing P1

    Amazing 这个词带有 strong positive emotion，作者用它来 describe 研究发现，表明他不是 detached observer，而是对这个 discovery 感到 genuinely impressed。在科学说明文里用这种 emotionally charged word 是 rare 的，它 signals 作者的 enthusiasm。

    同类词 remarkable extraordinary astonishing stunning impressive

  • landmark evidence P1

    Landmark 这个词表示 historically significant，作者用它来 elevate 这个发现的 status，不只是说它 important，而是说它是 field-defining moment。这种 emphatic language choice 表明作者 recognize and celebrate 这个成果的 value。

    同类词 groundbreaking discovery pivotal finding milestone achievement breakthrough research seminal work

  • virtually required P2

    Virtually required 表明作者认为这个发现不是 optional add-on，而是理论 validity 的 necessary condition。用这种 strong language of necessity 显示作者 endorse 这个理论的 logical structure，相信它 stands on solid ground。

    同类词 essentially necessary fundamentally needed critically important indispensable prerequisite

  • triumph P4

    Triumph 是非常 positive 的词，带有 celebration 和 achievement 的含义。作者说未来发现将是 triumph for another theory，这表明他期待且 welcome 这个 validation，站在 theory supporters 的 side。

    同类词 victory success vindication confirmation validation

  • shouldn't have long to wait P3

    Shouldn't have long to wait 表达了 confident expectation，作者不是说 might eventually see results，而是说 will see them soon。这种 certainty about positive outcomes 体现他相信 current research 的 validity 和 direction。

    同类词 won't be long coming soon imminent just around the corner in the near future

  • scientifically plausible P4

    Scientifically plausible 是作者对 inflation theory 的 endorsement，他用这个短语来 defend 这个理论 against potential criticism（odd though it sounds）。这表明作者 consider 这个理论 worthy of serious consideration，不是 fringe speculation。

    同类词 theoretically sound well-founded credible reasonable legitimate

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. 首句功能识别 P1

    说明文的 opening 通常是 descriptive statement，客观地 introduce 一个 phenomenon 或 discovery；议论文会在开头 propose 一个 debatable viewpoint；新闻报道则强调 timeliness 和 immediacy，常用 recently、yesterday 等 time markers

  2. 段落关系模式 P1 P2 P3 P4

    说明文的 paragraphs 按照 logical sequence 展开，比如 第1段 describe discovery，第2段 explain theory，第3段 discuss methods，第4段 elaborate refinement；议论文的段落是 thesis-supporting evidence-counterargument 的结构；新闻报道是 inverted pyramid structure，重要信息在前

  3. 动词语义场 P1 P2 P4

    说明文用 verbs 来 describe processes and states，比如 'the universe burst into being'、'gas was compressed'；议论文用 modal verbs 和 evaluative verbs，比如 'should'、'must'、'proves that'；新闻报道用 action verbs 和 reporting verbs，比如 'announced'、'said'、'revealed'

  4. 术语处理方式 P1 P2 P4

    说明文不仅 mention technical terms，还会 provide definitions 或 explanations，比如 'the Big Bang (the theory that the universe originated in an explosion)'；议论文 assume readers know the terms 并直接用来 support arguments；新闻报道会 simplify technical content 或 quote experts without deep explanation

  5. 作者立场呈现 P1 P2 P3 P4

    这篇文章通篇 present scientific findings without author's opinion（没有 'I believe'、'we should'、'it is clear that' 等 subjective markers），focus 在 explaining what scientists discovered 和 how theories work；议论文会有 clear authorial voice expressing agreement/disagreement；新闻会 attribute information to sources（'officials said'、'according to'）

哪些词暴露了说明文体裁？

  • the universe P1 说明对象定义解释词 the Big Bang cosmic clouds the cosmos galaxies stars
  • what they were seeing were P1 说明顺序与例证词 According to the theory Over billions of years first put forward in the 1920s very early on in much less than a second
  • was designed to P3 事物属性功能描述词 was at once both amazing and expected was virtually required for burst into being as flew outward in all directions emitting radiation
  • the theory P2 说明对象定义解释词 the Big Bang theory the inflationary universe theory scientific idea explanation of the cosmos respected ideas in elementary particle physics
  • required for P2 说明顺序与例证词 according to in fact evidence that has become known as If...look as expected
SENTENCE INSIGHTS · 句子精讲

9 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 1998年考研英语真题 Section II Part B 的常见问题

1998年考研英语真题 Section II Part B 文章的主旨是什么？
美国宇航局的 Cobe 卫星探测到 150 亿光年外的巨大宇宙云，通过揭示宇宙诞生时的结构为大爆炸理论提供了里程碑式的证据,同时科学家正在寻找更小的结构以证实暴胀宇宙理论。（英文表述：NASA's Cobe satellite detected enormous cosmic clouds 15 billion light-years away, providing landmark evidence for the Big Bang theory by revealing structures from the universe's birth, while scientists search for smaller formations to confirm the inflationary universe theory.）
1998年考研英语真题 Section II Part B 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（Objective and Enthusiastically Supportive）。CEFR 难度 C2，全文 376 词、4 段；在考研英语全部 70 篇真题文章中，C2 级共 5 篇（占 7%）。
1998年考研英语真题 Section II Part B 文章的篇章结构是怎样的？
全文 4 段按说明文骨架分为 4 个意群：第1段——重大发现的引入与意义；第2段——大爆炸理论的详细阐释；第3段——后续研究的方向与进展；第4段——精细理论的引入与验证前景。
1998年考研英语真题 Section II Part B 文章的作者态度是什么？
作者态度是积极支持（Objective and Enthusiastically Supportive）。判断路径：开篇词汇的情感色彩 → 理论描述的确定性程度 → 未来预测的确信度 → 全文叙事的积极性走向；文中的态度信号词包括 amazing（第1段）、landmark evidence（第1段）、virtually required（第2段）、triumph（第4段）、shouldn't have long to wait（第3段）、scientifically plausible（第4段）。
1998年考研英语真题 Section II Part B 文章中有哪些值得积累的生词？
按文中出现顺序共 3 个：primeval（原始的;最初的;远古的）、submicroscopic（亚微观的;比显微镜可见范围更小的）、inflationary（膨胀的;(宇宙)暴涨的），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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