Organization, Coherence, and Style

On 19 November 1863 two men spoke at the opening of a soldiers' cemetery at Gettysburg, Pennsylvania. The main speaker, Edward Everett, spoke for about two hours. President Abraham Lincoln then spoke for about two minutes: 272 words. The next day Everett wrote to Lincoln that he wished he had come as close to the central idea of the occasion in two hours as Lincoln had in two minutes. Lincoln's speech is short, but every sentence is tied to the one before it. That tightness, called coherence, is what this unit teaches you to see and to build.

Unit 5 turns from what an argument contains to how it holds together. It has two subjects: coherence 连贯 and the beginnings of style 风格.

The CED's statement of the body paragraph is exact and worth memorising: the body paragraphs of a written argument make claims, support them with evidence, and provide commentary that explains the relationship of the evidence to the claim.

Three parts, in that order, in every body paragraph. When an AP essay loses evidence-and-commentary points, it is almost always because the third part is missing from paragraphs that have the first two.

Applied to your own writing: draft the claims first, as a list, before writing any paragraph. You then have the line of reasoning in front of you and can check that it moves.

Then, for each claim, write the paragraph in its three parts deliberately. A useful habit under exam conditions is to make the commentary sentence begin with a word that forces a relationship - because, which means, so, the effect of this is - because those words cannot be followed by a restatement.

Worked example: one body paragraph, weak and strong. Prompt: Should schools ban phones during the school day?

Weak: "Phones are very distracting. Many students use them in class. For example, my friend checks TikTok in maths. This shows phones are bad. So schools should ban them." The claim is vague, the evidence is one friend, and "this shows phones are bad" only repeats the claim.

Strong: "(claim) A ban helps most the students who find it hardest to stop checking. (evidence) From January 2024 the Netherlands asked schools to keep phones out of classrooms, and in a 2025 study for the Dutch government about three quarters of secondary schools said that students concentrated better. (commentary) Because a rule removes the choice, a student no longer has to win the same small fight against a notification forty times a day, which means attention is protected for everyone, not only for students with strong self-control." The commentary uses because and which means, and it explains why the evidence supports the claim.

Coherence occurs at different levels in a piece of writing:

• In a sentence, the idea in one clause 分句 logically links to the idea in another.
• In a paragraph, each sentence builds on the one before it.
• Across the whole text, each paragraph relates to the line of reasoning.

The CED then names the devices that create those links:

• Repetition 重复, synonyms 同义词, pronoun references 代词指代, and parallel structure 平行结构 may indicate or develop a relationship between ideas.
• Transitional elements 过渡成分 are words or other elements - phrases, clauses, sentences, or whole paragraphs - that assist in creating coherence.

Worked example: the devices in a real text. Each line below is from the Gettysburg Address.

A rhetorical-analysis sentence about it: "Lincoln repeats 'dedicate' but shifts its object from the ground to the living audience, so the ceremony becomes a duty: the listeners leave with a task, not only a memory." The device is named, its effect is traced, and the audience is in the sentence.

Transitions have a second job the CED names explicitly: they introduce evidence or indicate its relationship to other ideas or evidence.

That is the difference between decorative and functional transitions. Furthermore adds nothing - it says only "here is another sentence". Even in the cases where the effect is smallest tells the reader what relationship is coming. Choose transitions that carry information about the relationship, not ones that merely mark a boundary.

Note also that a transitional element may be a whole paragraph. In a long argument, a short paragraph whose only job is to turn the reasoning is legitimate and often elegant.

Unit 5 opens the course's treatment of style with three claims about diction:

• Words have both connotative and denotative meanings. Denotation 外延义 is what a word refers to; connotation 内涵义 is what it carries.
• Descriptive words - adjectives 形容词 and adverbs 副词 - not only qualify or modify 修饰 what they describe but convey a perspective toward it.
• Precise word choice 用词 reduces confusion and helps the audience perceive the writer's perspective.

The second is the analytically useful one. When a rhetorical-analysis passage calls a policy ambitious rather than expensive, no fact has changed and the reader's disposition 倾向 has. That is a rhetorical choice, and it is exactly what the question asks you to explain.

For your own writing, precision is worth more than range. A concrete rule: prefer the word that is exactly right to the word that is impressive. Examiners reward control, and an inflated word used slightly wrongly reads as loss of control.

Worked example (a real AP exam task). In a rhetorical-analysis passage a writer describes a proposal's supporters as "determined" in one paragraph and "unyielding" in the next. A low-scoring answer notes that the writer uses "strong diction". A scoring answer explains the shift: "Both words denote persistence, but 'determined' carries approval and 'unyielding' carries obstruction. By moving from one to the other without changing the facts described, the writer withdraws sympathy from the supporters while appearing only to continue describing them - so the audience's judgement shifts before any counter-argument is made." That is connotation, tone, and effect on audience in one move.

Answer each before reading the model answers below.

1. Choose the transition that fits: "The plan saves money. ___, it may reduce service quality." (Moreover / However / Therefore)
2. Choose again: "Fares fell. ___, more people took the bus." (As a result / Similarly / In contrast)
3. What makes a paragraph unified 统一的?
4. Rewrite to improve coherence: "Buses are cheap. Trains are fast. People like speed."
5. A student uses "Furthermore" to begin every paragraph. Explain the problem.

1. However: it signals a contrast with the saving.
2. As a result: it signals cause and effect.
3. Every sentence in it serves one controlling claim, stated or clearly implied in its topic sentence 主题句.
4. For example: "Buses are cheap, but trains are fast, and many commuters value speed over price, which is why train use is rising."
5. "Furthermore" signals addition only. If a paragraph contrasts, concludes or explains a cause, the transition misleads the reader about the relationship between ideas.

• Every body paragraph: claim, evidence, commentary. Lost points are nearly always the third.
• Draft your claims as a list first. It is the only way to see whether the reasoning moves.
• Begin commentary with because, which means, so - words that cannot be followed by a restatement.
• Know the coherence devices by name: repetition, synonyms, pronoun reference, parallel structure, transitions.
• A transition should carry the relationship, not just mark a boundary. Furthermore usually carries nothing.
• Connotation is where diction analysis lives. Same denotation, different disposition, is a rhetorical choice worth explaining.

Vocabulary card meanings

coherence: The way sentences and paragraphs connect into one clear whole. pronoun reference: Making clear which noun a word such as it or they points back to. parallel structure: Repeating the same grammatical shape in a list or a pair. transitional element: A word or sentence that shows how the next idea relates to the last. denotation: A word's dictionary sense. connotation: The feeling or association a word carries beyond its dictionary sense.