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C2 · Unit 3
Precision & nuance · editing & vocab
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Precision & Nuance

At C2, a single word choice can shift meaning, tone, and credibility. In this unit, students sharpen precision through collocations, careful idiom choice, and systematic ambiguity elimination—editing text until it says exactly what it should.

Objectives Collocations Idiom Choice Ambiguity Editing Toolkit Practice Final Task Materials

SWBAT (Objectives)

  • Use high-frequency collocations accurately in formal and informal contexts.
  • Choose idioms appropriately (audience, register, clarity) and avoid forced idioms.
  • Identify and eliminate ambiguity (pronoun reference, modifier placement, vague wording).
  • Edit sentences for precision: stronger verbs, tighter meaning, fewer “filler” words.
  • Maintain tone while improving clarity and nuance in a full paragraph.

Collocations (Natural English at C2)

Why collocations matter

Collocations are “word partnerships” that sound natural (e.g., raise concerns, reach a conclusion). At C2, collocation errors stand out more than grammar mistakes.

High-value academic/work collocations

pose a challenge · address an issue · draw a distinction
take responsibility · mitigate risk · meet a deadline
conduct research · reach consensus · make a compelling case

Common collocation traps

❌ “do a decision” → ✅ “make a decision”
❌ “strong rain” → ✅ “heavy rain”
❌ “big influence” (ok) → ✅ “significant influence” (formal)

Collocations Pack (PDF) Collocations Quiz (PDF)

Idiom Choice (Clarity First)

Idiom rules for C2
  • Use idioms when they add clarity or impact—not “decoration.”
  • Match register (avoid casual idioms in academic writing).
  • Avoid culture-heavy idioms if your audience is international.
  • Prefer “transparent” idioms that are easy to infer.
Good vs risky idioms

✅ transparent: in the long run, draw the line, the bigger picture
⚠️ culture-heavy: hit it out of the park, Monday morning quarterback
⚠️ unclear without context: move the needle, boil the ocean

Rewrite strategy

If an idiom could confuse someone, replace it with a literal paraphrase and keep the tone.

Idioms by Register (PDF)

Ambiguity Elimination (Say What You Mean)

Common ambiguity sources
  • Pronouns: “it/they/this” (unclear reference)
  • Modifiers: “only,” “almost,” “just” (misplaced)
  • Vague nouns: “thing,” “stuff,” “issue,” “problem” (unspecified)
  • Time/quantity: “soon,” “a lot,” “recently” (unbounded)
Before → After (examples)

❌ “They said it will be fixed soon.”
✅ “The vendor said the login bug will be fixed by Friday.”

❌ “We discussed the plan with the manager and she agreed.”
✅ “We discussed the rollout plan with Ms. Patel, and she approved it.”

Ambiguity Checklist (PDF) Ambiguity Drills (PDF)

Editing Toolkit (C2 Precision Pass)

Pass 1: Meaning

What is the exact claim? What must stay true? What can be cut without losing meaning?

Pass 2: Precision

Replace weak verbs (do/make/get) with precise verbs (resolve/secure/implement). Tighten nouns. Remove vague time words.

Pass 3: Naturalness

Check collocations, article use, and rhythm. Read aloud for awkward phrasing.

Editing Checklist (PDF)

Practice (Editing + Vocabulary)

Practice 1: Collocation upgrade

Replace unnatural combinations with natural collocations while keeping tone.

Practice 2: Idiom filter

Decide: keep / replace / paraphrase. Justify choice by audience and register.

Practice 3: Ambiguity hunt

Fix pronoun reference, “only” placement, vague quantities, and unclear timelines.

Practice Worksheet (PDF) Answer Key (PDF)

Final Task: Precision Rewrite Portfolio

Part A — Tighten
  • Reduce a 220–260 word text to 170–210 words.
  • Keep all key facts; remove redundancy and vagueness.
  • Upgrade 10+ weak verbs/nouns to precise alternatives.
Part B — Naturalize
  • Correct 12 collocations in a flawed text.
  • Explain 3 choices (why this collocation fits).
Part C — Clarify
  • Eliminate 8 ambiguities (pronouns/modifiers/vague time).
  • Produce a “clean” final paragraph (publishable clarity).
Portfolio Template (PDF) Rubric (PDF)

Materials & Downloads

  • Unit 3 Slides — PPTX
  • Collocations Pack — PDF · Collocations Quiz — PDF
  • Idioms by Register — PDF
  • Ambiguity Checklist — PDF · Ambiguity Drills — PDF
  • Editing Checklist — PDF
  • Practice Worksheet — PDF · Answer Key — PDF
  • Portfolio Template — PDF · Rubric — PDF

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