Prefix un-
Build vocabulary through prefix un-, then use the target words in gap-fill and discussion activities. Includes a teacher answer key.
What’s in the worksheet?
- Target vocabulary with clear definitions
- Gap-fill practice using each target word
- Discussion questions for speaking practice
- Teacher answer key on page 3
Build vocabulary with un- adjectives for evidence, decisions and unexpected events, then use the eight target words in sentence completion and discussion.
Worksheet preview
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Page 1 of 3 · A4 printable PDF
Page 2 of 3 · A4 printable PDF
Page 3 of 3 · Answer key · A4 printable PDF
A simple way to teach it
Before the lesson
Use pages 1–2 and keep the teacher key on page 3 for feedback. Introduce unsubstantiated and unfounded, checking meaning and pronunciation before the gap fill.
- Compare unsubstantiated claims with unfounded rumours, noting their overlap; discuss why the printed key assigns each to its context.
- Complete the eight sentences using each vocabulary word once. Compare choices with a partner and explain the context clues before checking the key.
- Discuss unambiguous instructions, unforeseen costs, unworkable policies and unwarranted criticism. Use the five printed questions for pair discussion and short notes; responses are individual, not fixed-key answers.
Support and extension
Support with evidence / feasibility / fairness categories. Accept a defensible contextual alternative rather than treating near-synonyms as universally exclusive; extend by qualifying a claim.
Suggested approach. Adjust the pace and number of questions to suit your class.
