懒笔记
2017年12月英语六级真题第1套 Part II Section C (3)
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2017年12月英语六级真题第1套 Part II Section C (3)

说明文 · 听力 · 真题文章逐层精读

本页是 2017年12月英语六级真题第1套 Part II Section C (3) 文章的精读视角页——这篇说明文全文 402 词、4 段，CEFR 难度 C1（C1 级在英语六级文章中占 58%），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六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

4 段英文原文

以下为2017年12月英语六级真题第1套 Part II Section C (3) 的听力原文，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。

The Mediterranean diet is based upon the eating patterns of traditional cultures in the Mediterranean region.

Several noted nutritionists and research projects have concluded that this diet is one of the most healthful in the world in terms of preventing such illnesses as heart disease and cancer, and increasing life expectancy.

The countries that have inspired the Mediterranean diet all surround the Mediterranean Sea. These cultures have eating habits that developed over thousands of years. In Europe, parts of Italy, Greece, Portugal, Spain, and southern France adhere to principles of the Mediterranean diet, as do Morocco and Tunisia in North Africa. Parts of the Balkan region and Turkey follow the diet, as well as Middle Eastern countries like Lebanon and Syria. The Mediterranean region is warm and sunny, and produces large supplies of fresh fruits and vegetables almost year round that people eat many times a day. Wine, bread, olive oil, and nuts are other staples of the region, and the Mediterranean Sea has historically yielded abundant quantities of fish.

International interest in the therapeutic qualities of the Mediterranean diet began back in the late 1950s, when medical researchers started to link the occurrence of heart disease with diet. Dr. Ancel Keys performed an epidemiological analysis of diets around the world. Entitled the Seven Countries Study, it is considered one of the greatest studies of its kind ever performed. In it, Keys gathered data on heart disease and its potential causes from nearly 13,000 men in Greece, Italy, Croatia, Serbia, Japan, Finland, the Netherlands, and the United States. The study was conducted over a period of decades. It concluded that the Mediterranean people in the study enjoyed some significant health advantages. The Mediterranean groups had lower mortality rates in all age brackets and from all causes, particularly from heart disease. The study also showed that the Mediterranean diet is as high or higher in fat than other diets, obtaining up to 40% of all its calories from fat. It has, however, different patterns of fat intake. Mediterranean cooking uses smaller amounts of saturated fat and higher amounts of unsaturated fat, mostly in the form of olive oil. Saturated fats are fats that are found principally in meat and dairy products, although some nuts and vegetable oils also contain them. Saturated fats are used by the body to make cholesterol, and high levels of cholesterol have since been directly related to heart disease.

PARAGRAPHS · 逐段精读

4 段逐段主旨与解读

逐段拆解2017年12月英语六级真题第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

    Origin of the Mediterranean Diet

    The Mediterranean diet originates from traditional Mediterranean eating patterns.

    本段在全文中承担 opening definition 的作用，先明确 Mediterranean diet 并非随意设计的食谱，而是源于传统 eating patterns。这个起点使读者能够理解：后文的健康结论、地域食材和科学研究，都是围绕这一特定饮食模式展开的。

    抓住定义来源
  2. P2

    Health Benefits of the Mediterranean Diet

    The Mediterranean diet is highly healthful because it prevents major diseases and promotes longevity.

    本段承接前文的定义，立即指出 Mediterranean diet 为什么值得讨论，即其显著的 health benefits。它先给出全文的总体价值判断，之后第三段解释这种饮食形成的地域和食物基础，第四段再用科学 study 具体证明其作用。

    研究证明健康
  3. P3

    Cultural and Geographic Foundations

    Mediterranean geography, climate, and traditions shape the foods of the Mediterranean diet.

    本段把第二段抽象的 health claim 落到具体的生活条件上，解释 Mediterranean diet 的 food base 从何而来。尤其是 olive oil、nuts 和 fish 等食物信息，为第四段分析 unsaturated fat 与 heart disease 的关系准备了营养学背景。

    从国家食物归纳环境
  4. P4

    Research Evidence and the Role of Dietary Fat

    Research links the Mediterranean diet's health advantages to its emphasis on unsaturated rather than saturated fats.

    本段是全文的论证核心，它用 Seven Countries Study 验证第二段提出的健康优势，并进一步揭示其营养机制。通过 unsaturated fat、olive oil、cholesterol 与 heart disease 的因果链，作者完成了对文章主旨中“为何地中海饮食更健康”的关键说明。

    研究结论解释脂肪差异
SELF CHECK · 段落自检题

4 道逐段细节自检题

针对2017年12月英语六级真题第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 Mediterranean diet based upon

    What is the Mediterranean diet based upon?

    • A The recommendations of modern nutritionists.
    • B Medical treatments for heart disease and cancer.
    • C The eating patterns of traditional cultures in the Mediterranean region.
    • D A fixed list of fish, wine, and nuts.
    • E The dietary habits of people in Japan and Finland.
    • F A low-fat plan designed to reduce cholesterol.
    显示答案与解析 收起答案与解析

    正确答案：C

    正确项完整保留了原文的定义骨架：eating patterns 是 diet 的具体依据，traditional cultures 限定这些模式的来源，Mediterranean region 限定其地理范围。它没有加入原文未说的 ingredients、medical research 或 specific countries。其障碍在于把 cultures 的所有关系处理成 of traditional cultures，并把 regional information 后置；考生必须核对三个信息块都在，而不能只看见 Mediterranean 就选择任何相关选项。

    谓语插槽回填 时间极紧时，不必从头读全文。直接用题干中的低频结构 based upon 反向扫描，并在 第1段 寻找其后的名词补足语；然后采用“谓语插槽法”：把每个选项依次代入 “The diet is based upon ___”。只有正确项能在逻辑和语法上无缝填入，其他项即使主题相关也会暴露为 effects、examples 或 researchers。

  2. 第 2 段 定位词 noted nutritionists concluded

    What have noted nutritionists and research projects concluded about the Mediterranean diet?

    • A It is the only diet capable of curing heart disease and cancer.
    • B It contains less fat than any other diet in the world.
    • C It was developed by medical researchers in the late 1950s.
    • D It is among the world's most healthful diets because it helps prevent major illnesses and increase life expectancy.
    • E It is suitable only for people living near the Mediterranean Sea.
    • F It increases life expectancy mainly by eliminating all dietary fat.
    显示答案与解析 收起答案与解析

    正确答案：D

    该项准确对应 three layers of information：one of the most healthful 保留“最健康之一”的非绝对程度；helps prevent 对应 preventing，避免误写成治疗；major illnesses and increase life expectancy 概括了列举疾病与寿命提升两项效果。障碍在于题目将原文的 in terms of 结构改写为 because，考生需要认出二者都在说明评价依据。

    绝对词筛除 先在 第2段 用 concluded 后的语义窗口读取一整块信息，不逐词翻译；随后执行“绝对词筛除”：优先删去含 only、any other、all 等明显越界词的选项。再在剩余项中选择同时保留“健康程度 + 预防 + 寿命”三项结论的正确项。这种先反向排错比逐项全文核对更快。

  3. 第 3 段 定位词 fresh fruits and vegetables many times a day

    Why do people in the Mediterranean region eat fresh fruits and vegetables many times a day?

    • A Medical researchers require them to follow a strict daily schedule.
    • B Fish from the Mediterranean Sea has replaced all other foods.
    • C The region imports fresh produce from northern Europe throughout the year.
    • D Olive oil makes fruits and vegetables more therapeutic.
    • E The warm, sunny climate produces large supplies of fresh produce almost year round.
    • F Traditional cultures avoid bread, wine, and nuts at most meals.
    显示答案与解析 收起答案与解析

    正确答案：E

    正确项沿原文因果顺序复现：warm and sunny 是自然条件，produces large supplies 是直接供给机制，almost year round 解释了高频消费为何可持续。fresh produce 是对 fresh fruits and vegetables 的上位概括，并未改变范围。命题障碍是把原文较长的条件链压缩成一句，考生若只机械找同词，可能错过 produce 对 fruits and vegetables 的概括替换。

    结果左推两步 在 第3段 找到 many times a day 后，立即执行“向左两步回溯”：先找同句或前句的 supply 动词，再找驱动 supply 的环境条件，不必阅读前面冗长的国家名单。随后只选能完整回答“条件→供应→频率”链条的正确项；凡是只谈 fish、olive oil 或 countries 的选项，直接视为同段旁枝信息。

  4. 第 4 段 定位词 other diets

    What distinguished the Mediterranean diet's pattern of fat intake from that of other diets?

    • A It provided no more than 40% of its calories from fat.
    • B It relied mainly on saturated fat from meat and dairy products.
    • C It eliminated all fats in order to lower cholesterol levels.
    • D It contained equal amounts of saturated and unsaturated fat.
    • E It obtained its unsaturated fat chiefly from fish rather than olive oil.
    • F It used less saturated fat and more unsaturated fat, mainly from olive oil.
    显示答案与解析 收起答案与解析

    正确答案：F

    正确项精确呈现比较的双轴：less saturated fat 与 more unsaturated fat；mainly from olive oil 补足不饱和脂肪的主要形式。它回答的是 pattern，而非 fat calories 的绝对数值。其障碍在于原文使用 smaller amounts/higher amounts，选项改写为 less/more；同时考生需注意 olive oil 修饰的是 unsaturated fat 的主要来源，而不是说所有脂肪都来自 olive oil。

    转折后双向配对 在 第4段 不要被 40% 这个数字停住。直接跳读到 however 后，使用“反差配对法”：把选项拆成两半，分别核验它是否同时含有“较少的一类脂肪”和“较多的另一类脂肪”。只有正确项能完成这组反向配对；只讲总量、胆固醇或鱼类的选项，即使词汇来自原文，也不符合 pattern 的比较任务。

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

    地中海饮食的定义

    这个 opening paragraph 直接给出了 Mediterranean diet 的 definition，指出它是 based upon 地中海地区 traditional cultures 的 eating patterns，为整篇说明文建立了 topic foundation。

    作为说明文的 introductory part，这个意群通过 define 地中海饮食的 origin 和 nature，为后文 explain 其 health benefits 和 scientific research 奠定了 conceptual basis，让读者明确了解 what is being discussed。

    引出说明对象
  2. P2

    地中海饮食的健康价值

    这个 paragraph 从 nutritionists 和 research projects 的 conclusions 出发，directly state 了地中海饮食是 one of the most healthful diets，能够 prevent heart disease and cancer，并 increase life expectancy，构成了主旨的 core claim。

    在说明文中，这个意群扮演着 thesis statement 的角色，通过 present 权威的 research findings，establish 了地中海饮食的 health superiority 这个 central idea，为后文的 geographical description 和 detailed scientific evidence 提供了 argumentative direction。

    提出核心论点
  3. P3

    地中海饮食的地域文化背景

    这个 lengthy paragraph 详细 enumerate 了 Mediterranean region 的 countries，describe 了这些 cultures 的 eating habits 经过 thousands of years 形成，并 explain 了该地区的 climate conditions 和 natural resources 如何 produce fresh fruits, vegetables, olive oil, fish 等 staple foods。

    说明文中的这个意群提供了 contextual information，通过 illustrate 地中海饮食的 geographical origin 和 cultural evolution，help readers understand 这种 eating pattern 的 authenticity 和 natural foundation，为理解其 health benefits 提供了 cultural and environmental context。

    说明饮食来源
  4. P4

    科学研究证据支撑

    这个 extensive paragraph 详细 present 了 Dr. Ancel Keys 的 Seven Countries Study，describe 了这项 epidemiological analysis 的 scope, methodology, duration 和 key findings，特别 emphasize 了地中海人群的 lower mortality rates，并 explain 了饮食中 fat composition 的 difference，指出 unsaturated fat from olive oil 而非 saturated fat 是 key factor。

    作为说明文的 evidential core，这个意群通过 present detailed scientific research，provide concrete data 和 analytical findings 来 substantiate 前文提出的 health benefits claim，让主旨从 assertion 转变为 evidence-based conclusion，体现了说明文的 scientific rigor。

    提供科学依据
MAIN IDEA · 速判主旨

4 步定位这篇文章的主旨

不读完全篇也能锁定主旨——以下 4 步按2017年12月英语六级真题第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六级文章。

  1. 首段识别研究对象 P1

    说明文的 introductory paragraph 往往直接点明要介绍的 topic，这篇文章首句就清楚说明 Mediterranean diet 是基于 traditional cultures 的 eating patterns，立刻锁定了整篇要讨论的 central subject

  2. 评价性结论识别 P2

    第二段出现了 'one of the most healthful' 这样的 superlative expression，配合 'preventing illnesses' 和 'increasing life expectancy' 这些 health benefits，直接给出了作者对 Mediterranean diet 的 positive evaluation，这是主旨的 核心判断 core assessment

  3. 科学证据扫描 P4

    第四段详细介绍了 Seven Countries Study 及其 research methodology 和 findings。这个 empirical evidence 不仅 supports 健康观点，更重要的是揭示了 'different patterns of fat intake' 和 'olive oil' 作为 underlying mechanism，这是主旨中 'primarily due to' 部分的 factual basis

  4. 主旨三要素整合 P1 P2 P4

    综合前三步：第1段 确定了 what (Mediterranean diet 及其 origin)，第2段 给出了 how good (one of the most healthful)，第4段 解释了 why (unsaturated fat from olive oil vs saturated fat)。这个三元结构 three-part structure 构成了完整主旨

主旨信号词 one of the most healthful P2 concluded P2 preventing P2 significant health advantages P4 lower mortality rates P4 however P4 different patterns of fat intake P4

MAIN IDEA · 主旨

这篇文章在说什么

地中海饮食起源于地中海文化,被认为是世界上最健康的饮食模式之一。研究,特别是七国研究,证明了它在预防心脏病和癌症、延长预期寿命方面的有效性,这主要归功于其从橄榄油中获取的高不饱和脂肪含量,而非饱和脂肪。
The Mediterranean diet, originating from Mediterranean cultures, is considered one of the world's healthiest eating patterns. Research, particularly the Seven Countries Study, demonstrates its effectiveness in preventing heart disease and cancer while increasing life expectancy, primarily due to its high unsaturated fat content from olive oil rather than saturated fats.
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。已收录进英语六级高频真题词集的单词可点击进入词条页。

  • adhere 遵循、坚持、遵守

    我们现在把三条 clues 串联起来。首先,从 context 看,第3段 在描述哪些 regions 遵循 Mediterranean diet,adhere 出现在描述这种关系的位置。其次,从 word formation 看,ad- prefix 表方向,-here 暗示粘附,组合起来是'粘附到某处、坚守'。最后,从 syntax 看,'adhere to principles' 这个 structure 与 stick to rules, conform to standards 等表达平行,都是'遵守'的含义。三条线索共同指向同一个 meaning:adhere 表示'坚持、遵守、遵循'。

    语境角色加构词拆解加句法搭配
  • staple 主食、基本食材

    整合三条 clues:首先,'other staples' 中的 'other' 表明它与前面的 fruits and vegetables 属于同一 category—都是 region 的 characteristic foods。其次,列举的 wine, bread, olive oil, nuts 都是 daily consumption 的 basic items,不是 luxury 或 occasional foods。最后,staple 的 semantic field 本身就包含'基础的、必需的'含义。三条线索共同指向:staples 是指某个 region 或 culture 中 regularly consumed 的 basic foods,即'主食'或'基本食材'。

    连接词加例证特征推类别词义
  • yield 出产、产生、提供

    综合三条 clues:第一,从 subject-verb-object relationship 看,sea 对 fish 的 action 应该是'产出、提供';第二,'historically' 和 'abundant quantities' 修饰这个 action,强调它是 long-term 和 large-scale 的 production;第三,与前面 'produces fruits and vegetables' 构成 parallel structure,两个 verbs 应该表达相似的'生产、出产'含义。三条线索汇聚:yielded 表示'出产、产生、提供'。

    施受关系加修饰词加平行结构
  • therapeutic 治疗的、有疗效的

    整合三条 clues:首先,temporal context 表明 therapeutic qualities 引起 interest 是在 medical research 开始关注 diet-disease link 的时候,说明它与 health/medical field 相关。其次,paragraph theme 围绕 diet 的 health benefits 展开,therapeutic qualities 应该指这些 health-promoting properties。最后,morphological analysis 显示 therapeutic 来自 therapy,直接表示'治疗的'含义。三条线索完美契合:therapeutic 表示'治疗的、有疗效的、有益健康的'。

    词族联想加领域语境加主题验证
  • epidemiological 流行病学的

    综合三条 clues:首先,这个 analysis 涉及 multiple countries 和 nearly 13,000 people,是典型的 population-level research。其次,从 morphology 看,epi- + demi- + -ology 的组合直接指向'研究人群中疾病分布的学科',即 epidemiology。最后,研究目的是 link disease with diet across populations,这正是 epidemiological research 的 core task。三条线索锁定:epidemiological 表示'流行病学的',指通过 population data 研究 disease patterns 的研究方法。

    多词根拆解重组匹配学科领域
  • mortality 死亡率

    整合三条 clues:首先,'lower mortality rates' 在 health advantage context 中是 positive outcome,说明 mortality 是 negative indicator,与 death 相关。其次,morphological analysis 明确显示 mort- root 表示'death',mortality 就是'death rate'。最后,它与 life expectancy 构成 inverse indicators,在 public health measurement system 中表示'死亡率'。三条线索共同确认:mortality 表示'死亡率',是衡量人群健康状况的关键 indicator。

    比较方向加透明词根加指标关联
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。

  • 下定义

    P1

    文章开篇就给 Mediterranean diet 下了一个清晰的 definition，指出它 is based upon the eating patterns of traditional cultures，这种 straightforward 的定义方式让 readers 立刻明白研究对象是什么。这个 definition 为后文展开 health benefits 和 scientific research 奠定了 foundation，让整篇文章的 logical structure 更加清晰，避免了 ambiguity。

    信号词 is based upon is defined as refers to means is consists of is characterized by can be described as

    仿写： 当你在 writing expository texts 时遇到需要介绍新 concept 的情况，不妨问自己：这个 concept 的 essential characteristics 是什么？它属于哪个 broader category？比如你要介绍'低碳生活'，可以这样写：'Low-carbon lifestyle is based upon daily practices that minimize carbon emissions。'仿写模版：'[Topic] is/refers to [essential feature] that [core function/characteristic]。'

  • 引资料

    P4

    文章 cite 了 Dr. Ancel Keys 的 Seven Countries Study 这个 landmark research，并详细说明它是'one of the greatest studies of its kind ever performed'，gathered data from nearly 13,000 men。这个 authoritative source 极大地增强了文章关于 Mediterranean diet health benefits 的 credibility。通过引用 specific research findings，文章从 subjective opinion 转变为 evidence-based conclusion，让 therapeutic qualities 的说法更加 convincing。

    信号词 Dr. Ancel Keys performed according to research shows studies indicate experts suggest data reveals concluded that performed an analysis entitled

    仿写： 当你需要 strengthen 某个 claim 时，思考：有没有 relevant research 或 expert opinion 可以支撑这个观点？引用时要包含三个 elements：source identity（Dr. Ancel Keys）、research name（Seven Countries Study）、key findings（lower mortality rates）。仿写模版：'According to [researcher/organization], [study name] showed/concluded that [specific finding], which demonstrates [your point]。'

  • 列数字

    P4

    文章在描述 Seven Countries Study 时精确地列出'nearly 13,000 men'这个 specific number，以及 Mediterranean diet 'obtaining up to 40% of all its calories from fat'。这些 concrete figures 让抽象的 research scope 和 dietary composition 变得 tangible and measurable。Numerical data 帮助 readers 直观理解 study 的 large scale 和饮食的 precise characteristics，使得 health advantages 的 conclusion 更有 substance，而不是 vague generalization。

    信号词 nearly 13,000 40% up to approximately over more than less than accounts for represents

    仿写： 在 expository writing 中遇到需要说明 extent、scale 或 proportion 的地方，问自己：能否用 specific numbers 替代'many'、'most'这类 vague words？比如不说'很多人参与'，而说'over 5,000 participants joined'。仿写模版：'The [subject] includes/involves/accounts for [specific number/percentage] of [total/category], which demonstrates [significance]。'

  • 举例子

    P3

    文章在 第3段 中 enumerate 了大量 specific countries 和 regions：'parts of Italy, Greece, Portugal, Spain, and southern France'、'Morocco and Tunisia in North Africa'、'parts of the Balkan region and Turkey'、'Middle Eastern countries like Lebanon and Syria'。这些 concrete examples 让 Mediterranean region 这个 geographical concept 从 abstract notion 变成 vivid picture。通过列举 diverse locations，文章展示了 Mediterranean diet 的 wide geographical distribution 和 cultural diversity，强化了它作为 traditional eating pattern 的 authenticity。

    信号词 such as like for example for instance including as do as well as particularly

    仿写： 当你 make 一个 general statement 后，思考：能否用 concrete examples 让它更 clear？选择 examples 时要注意 diversity 和 representativeness。比如说'许多 Asian countries practice tea culture'后，可以补充'such as China, Japan, India, and Korea'。仿写模版：'[General statement about a region/category]. These include [example 1], [example 2], and [example 3], as well as [additional examples]。'

  • 作比较

    P4

    文章在 第4段 中将 Mediterranean diet 的 fat content 与 other diets 进行 comparison：'as high or higher in fat than other diets'，同时对比了'lower mortality rates in all age brackets'。更关键的是对比了 different patterns of fat intake：'smaller amounts of saturated fat and higher amounts of unsaturated fat'。这种 comparative analysis 让 readers 明白 Mediterranean diet 的 superiority 不在于 total fat content，而在于 fat composition，从而突出了 olive oil（unsaturated fat）vs. meat/dairy（saturated fat）的 crucial difference，这正是 health benefits 的 key factor。

    信号词 than other diets lower than higher than as high or higher compared to in contrast to whereas while however different from

    仿写： 当你要 emphasize 某个 feature 时，问自己：与什么 compare 能最好地突出这个 characteristic？选择 comparison object 时要有 relevance。比如说明'电动车环保'，可以写'Electric vehicles produce zero direct emissions, while traditional gasoline cars emit significant CO2。'仿写模版：'[Subject A] has/shows [characteristic] as [comparative degree] as/than [Subject B], particularly in terms of [specific aspect]。'

  • 作诠释

    P4

    文章在 第4段 结尾对 saturated fats 进行了 detailed explanation：'Saturated fats are fats that are found principally in meat and dairy products, although some nuts and vegetable oils also contain them. Saturated fats are used by the body to make cholesterol'。这个 elaboration 不是简单 definition，而是 explain 了它的 sources 和 biological function，以及它与 cholesterol 和 heart disease 的 causal relationship。这种 in-depth interpretation 帮助 readers 理解为什么 Mediterranean diet 的 low saturated fat content 能 prevent heart disease，将 scientific mechanism 说透了。

    信号词 are found in are used by have been related to although principally contain make

    仿写： 当你 introduce 一个 potentially unfamiliar term 时，不要停留在 simple definition，而要 ask：它从哪里来？它做什么？它为什么重要？比如解释'抗氧化剂'，可以写'Antioxidants are compounds found in fruits and vegetables. They neutralize free radicals in the body, thereby reducing cellular damage and lowering disease risk。'仿写模版：'[Term] is/are [basic definition]. [Source/occurrence]. [Function/mechanism], and [consequence/significance]。'

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。

  • 地中海饮食的健康优势获权威认可

    P2
    Several noted nutritionists and research projects have concluded that this diet is one of the most healthful in the world

    权威背书类 Several noted nutritionists noted nutritionists research projects experts agree studies show scientists confirm leading researchers

    表面上作者在 present 营养学家和研究的 conclusions，但 underlying message 是：地中海饮食的 health benefits 不是 casual observation，而是经过 rigorous scientific validation 的。通过 invoke 'noted nutritionists' 和 'research projects'，作者 implicitly conveys 这个 diet 的 healthfulness 已经达到 professional consensus 的 level。这对文章主旨至关重要，因为它 establishes 整篇文章的 scientific foundation，让后续的 historical analysis 和 dietary details 都 gain credibility。这个 implied authority 也 preemptively addresses potential skepticism，telling readers 'you can trust this information'。

  • 地中海地区的独特地理优势

    P3
    The Mediterranean region is warm and sunny, and produces large supplies of fresh fruits and vegetables almost year round

    因果暗示类 warm and sunny produces yields as a result consequently this leads to thus

    表面上作者在 describe 地中海地区的 climate 和 agricultural output，但 implicit message 是：这个 diet 的 healthfulness 不是 accidental，而是 geographically determined。'Warm and sunny' 直接 leads to 'large supplies of fresh fruits and vegetables almost year round'，这个 causal chain implies 地中海饮食的 superiority 有 natural foundation。对主旨而言，这个 implication 很 crucial，因为它 explains why 这个 diet 能 sustain over thousands of years 并且 remain healthy。The subtext 是：it's not just cultural preference, but environmental advantage that makes this diet possible and sustainable。这也 subtly suggests 其他地区 may not easily replicate 这个 dietary pattern，增强了地中海饮食的 uniqueness。

  • 饱和脂肪与心脏病的确定关联

    P4
    high levels of cholesterol have since been directly related to heart disease

    时间进程暗示类 have since been came to be eventually proved later confirmed subsequently shown over time became ultimately established

    表面上在 state 胆固醇和心脏病的 relationship，但 'have since been' 这个 phrase 携带 significant subtext。它 implies 在 Seven Countries Study 的 time period，这个 connection 可能还不 fully established，但 after decades of research，现在已经是 irrefutable fact。这个 implication 对主旨至关重要，因为它 retroactively validates Keys' research focus on fat intake patterns。The underlying message 是：当时的研究 direction 是 prescient，因为后续 evidence 完全 confirmed the link between saturated fat, cholesterol, and heart disease。这也 strengthens 地中海饮食的 case，because it implies 该饮食的 unsaturated fat preference 不仅在 1950s study 中 showed benefits，而且 aligns with subsequently established scientific facts。The temporal implication adds layers of validation to the Mediterranean diet's healthfulness。

  • 七国研究的卓越学术地位

    P4
    it is considered one of the greatest studies of its kind ever performed

    程度极化类 one of the greatest most significant landmark study groundbreaking research unprecedented scale unparalleled importance seminal work

    表面上在 describe Seven Countries Study 的 quality，但 'one of the greatest studies of its kind ever performed' 这个 extreme characterization carries deep implications。The subtext 是：这不是 ordinary research，而是 field-defining landmark work whose findings carry exceptional weight。对主旨而言，这个 implication 至关重要，因为它 preemptively establishes 后续 findings 的 credibility。作者在 present study results 之前就 signal 'these conclusions come from gold-standard research'，这 makes readers more receptive to 地中海饮食的 health claims。The underlying message 也 implies Keys' methodology and scope set standards for nutritional epidemiology，所以 his conclusions about Mediterranean diet 不是 preliminary observations，而是 definitive findings from exemplary research。这个 extreme qualifier 实际上是在 build unassailable foundation for the entire article's argument about Mediterranean diet's superiority。

  • 脂肪来源比脂肪总量更关键

    P4
    The study also showed that the Mediterranean diet is as high or higher in fat than other diets, obtaining up to 40% of all its calories from fat. It has, however, different patterns of fat intake.

    转折对比类 however but yet although while whereas nevertheless

    表面上在 present Mediterranean diet 的 fat content data，但 'however' 引出的 contrast 携带 profound implication。前半句 'as high or higher in fat than other diets' 看似 contradicts 该饮食的 healthfulness，but the 'however, different patterns' immediately signals 'quantity is not what matters—quality is'。这个 implied distinction 是整篇文章的 theoretical cornerstone。The subtext 是：传统观念认为 high-fat diet 不健康是 oversimplification，真正 determine health outcomes 的是 fat types 而非 total fat content。对主旨而言，这个 implication 至关重要，因为它 explains the paradox：为什么 Mediterranean diet 能既 high in fat 又 exceptionally healthy。The underlying message 也 challenges readers' assumptions about fat and health，preparing them to accept 下一句关于 saturated vs. unsaturated fats 的 detailed explanation。这个 'however' 实际上是 pivotal moment where article shifts from description to explanation of causation。

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

  1. 主题句褒义词定位 P2

    说明文（expository text）的作者态度通常不会大段抒情，而是压缩在main claim里，第2段中的'one of the most healthful in the world'就是一个直接的态度信号，说明作者并非纯粹中立地介绍，而是带着positive judgment在写。

  2. 数据佐证认可 P4

    说明文常用authority citation（权威引用）来增强说服力，如果作者在转述研究结论时language是unreserved（没有保留、没有质疑），比如直接说'lower mortality rates... particularly from heart disease'，说明作者对这个结论持认可态度，而非中立转述。

  3. 转折词功能甄别 P4

    转折词是态度题里最容易被误判的信号，很多考生看到however就以为态度转向消极，但在这篇文章里，however后面只是解释脂肪摄入模式的差异，属于限定说明而非否定，所以整体态度依旧维持positive。

  4. 褒义寓于客观陈述 P1 P2 P3 P4

    说明文的态度题最终要看全文趋势是否一致，本文从开头的定义性介绍，到中间的地理文化背景，再到结尾的科学研究支撑，逻辑始终围绕'这个饮食法很健康'展开，没有出现真正的批评或警示，因此可以确定是积极支持而非纯客观中立。

文中的态度信号词

  • most healthful P2

    这个superlative直接把Mediterranean diet放在'世界最健康饮食'之列，是全文态度最外露的一处，直接给读者传递作者的positive judgment。

    同类词 one of the best the most beneficial the healthiest

  • significant health advantages P4

    significant和advantages都带有明确的正面评价色彩，说明作者在转述研究结论时并非中立复述，而是认同这个advantage的存在。

    同类词 significant advantages substantial benefits notable improvement considerable benefit

  • greatest studies of its kind ever performed P4

    作者用最高级来评价Seven Countries Study本身的学术地位，这种对study权威性的褒扬，间接为地中海饮食的健康结论增加了可信度，从而巩固了作者的积极态度。

    同类词 greatest studies landmark study groundbreaking research one of the most influential studies

  • lower mortality rates P4

    作者用具体统计结果描述死亡率的降低，这种'负面名词+降低类动词'的组合本质上是在正面肯定Mediterranean diet的健康效果。

    同类词 reduced risk decreased incidence fewer cases

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六级 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 informative statement，直接介绍 subject matter；议论文会提出 controversial viewpoint 或 arguable claim；新闻报道则会用 lead paragraph 交代 who、what、when、where 等 breaking news elements。本文 第1段 直接说明 Mediterranean diet 是 based upon eating patterns，这是典型的 expository introduction。

  2. 段落组织模式 P3 P4

    说明文的 organizational pattern 是围绕 topic 展开 explanatory dimensions；议论文是 progressive argumentation 结构，层层推进 thesis；新闻是 inverted pyramid，重要信息在前。本文 第3段 介绍 geographical and cultural aspects，第4段 介绍 research background and scientific findings，都是在 explain different facets of Mediterranean diet，而不是在 argue for a position。

  3. 证据类型与用途 P2 P4

    说明文依赖 empirical evidence 和 factual details 来 illustrate topic；议论文会用 evidence 但目的是 prove a claim；新闻会引用 sources 和 quotes 来 verify news。本文 第4段 引用 Seven Countries Study 的 data（nearly 13,000 men、mortality rates、40% calories from fat），这些是 explanatory evidence 而非 persuasive proof 或 news verification。

  4. 作者立场与语气 P1 P2 P3 P4

    说明文的 authorial voice 是 informative and detached；议论文是 persuasive and engaged；新闻是 reportorial with possible bias。本文通篇用 neutral descriptive language（based upon、concluded that、adhere to principles），没有 evaluative adjectives 或 persuasive modal verbs，也没有 breaking news urgency 或 reporter attribution。

  5. 四维综合判断 P1 P2 P3 P4

    说明文的 defining features 是 explanatory purpose + comprehensive coverage + factual content + objective tone 的 combination。本文以 Mediterranean diet 为 central topic，从 definition（第1段）、health benefits（第2段）、cultural-geographical context（第3段）到 scientific research（第4段）进行 systematic explanation，全文无 argumentative thesis 也无 news reporting elements，完全符合 expository genre。

哪些词暴露了说明文体裁？

  • is based upon P1 说明对象定义解释词 is defined as refers to means consists of is characterized by
  • in terms of P2 说明对象定义解释词 with regard to in relation to as for concerning regarding
  • Several noted nutritionists and research projects have concluded P2 事物属性功能描述词 have concluded research shows studies indicate findings suggest evidence demonstrates
  • The countries that have inspired... all surround P3 说明顺序与例证词 all surround are located in are found in are distributed across span across
  • These cultures have eating habits that developed over thousands of years P3 事物属性功能描述词 have developed over have evolved through have been shaped by have emerged from have been formed over
  • produces P3 事物属性功能描述词 yields generates provides supplies offers
  • International interest in... began back in P4 说明顺序与例证词 began back in started in originated in first emerged in was initiated in
  • Entitled... it is considered one of the greatest studies P4 说明顺序与例证词 is considered is regarded as is recognized as is known as is acknowledged as
  • concluded that P4 事物属性功能描述词 found that showed that demonstrated that revealed that indicated that
  • obtaining up to 40% of all its calories from fat P4 事物属性功能描述词 obtaining... from deriving... from getting... from drawing... from acquiring... from
  • It has, however, different patterns of P4 事物属性功能描述词 has different patterns of features different types of exhibits different forms of shows different kinds of displays different varieties of
  • are used by the body to P4 事物属性功能描述词 are used by... to are employed by... to are utilized by... to serve to function to
SENTENCE INSIGHTS · 句子精讲

5 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 2017年12月英语六级真题第1套 Part II Section C (3) 的常见问题

2017年12月英语六级真题第1套 Part II Section C (3) 文章的主旨是什么？
地中海饮食起源于地中海文化,被认为是世界上最健康的饮食模式之一。研究,特别是七国研究,证明了它在预防心脏病和癌症、延长预期寿命方面的有效性,这主要归功于其从橄榄油中获取的高不饱和脂肪含量,而非饱和脂肪。（英文表述：The Mediterranean diet, originating from Mediterranean cultures, is considered one of the world's healthiest eating patterns. Research, particularly the Seven Countries Study, demonstrates its effectiveness in preventing heart disease and cancer while increasing life expectancy, primarily due to its high unsaturated fat content from olive oil rather than saturated fats.）
2017年12月英语六级真题第1套 Part II Section C (3) 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（Informative and Approving）。CEFR 难度 C1，全文 402 词、4 段；在英语六级全部 593 篇真题文章中，C1 级共 343 篇（占 58%）。
2017年12月英语六级真题第1套 Part II Section C (3) 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——地中海饮食的定义；第2段——地中海饮食的健康价值；第3段——地中海饮食的地域文化背景；第4段——科学研究证据支撑。
2017年12月英语六级真题第1套 Part II Section C (3) 文章的作者态度是什么？
作者态度是积极支持（Informative and Approving）。判断路径：主题句褒义词定位 → 数据佐证认可 → 转折词功能甄别 → 褒义寓于客观陈述；文中的态度信号词包括 most healthful（第2段）、significant health advantages（第4段）、greatest studies of its kind ever performed（第4段）、lower mortality rates（第4段）。
2017年12月英语六级真题第1套 Part II Section C (3) 文章中有哪些值得积累的生词？
按文中出现顺序共 6 个：adhere（遵循、坚持、遵守）、staple（主食、基本食材）、yield（出产、产生、提供）、therapeutic（治疗的、有疗效的）、epidemiological（流行病学的）、mortality（死亡率），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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