Learner writes a paragraph containing at most one emphatic device, and can say what each device they rejected would have cost.
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Six judgements. The two-device paragraph that works is one of them.
A four-sentence paragraph with three emphatic devices in it reads as:
Why emphasis is relative, where to put it, and what it cannot fix.
A device works because the sentences around it are plain.
Three in a paragraph and the reader has no baseline to hear them against.
The descriptor's word for that is inappropriacy.
A lit room with one lamp, and the same room with four.

Four lamps light the room. One lamp shows you where to look.
Twelve devices in context. Six are ornament.
Sort each item into the correct category
Four paragraphs with three devices each. Keep one.
A. (1) It is congestion charging that changes travel behaviour. (2) What drivers compare is the charge against a fare. (3) For marginal journeys, the comparison tips. (4) Rarely does a policy work this directly.
Keep:
B. (1) What museums lose by charging is not revenue but visitors. (2) It was in 2001 that Britain made entry free. (3) Visits from the poorest districts rose fastest. (4) Not only did numbers rise, but the audience changed.
Keep:
C. (1) It is fear of traffic that keeps people off bicycles. (2) Seldom does a cycle lane fail to attract new riders. (3) What Seville built was eighty kilometres in four years. (4) Cycling there rose elevenfold.
Keep:
D. (1) Remote work cuts what firms spend on space. (2) It is the lease renewal that produces the saving. (3) Under no circumstances does the saving appear immediately. (4) What surprises most firms is the delay.
Keep:
One paragraph, one device, and a device rejected.
Topic: whether employers should pay for staff travel.
Four sentences. Exactly one emphatic device, placed on your main claim.
Then name one place you could have used a cleft, an inversion or fronting — and chose not to.
Four sentences.
One sentence.
Name the device you chose not to use, and its cost.