The Transformation That Means Something Else
On Part 4 key-word transformations, Yuki scores 4/10. Her rewritten sentences are usually grammatical, but her teacher notices a pattern: she treats the keyword as a prompt for a synonymous sentence rather than a constrained rewrite. For example, given a sentence about a continuous state that began in the past and the keyword MOVED, she produces a sentence that reports only the start date. On two items she wrote both a correct answer and an alternative; the alternative changed the time frame, and she received 0/2. She has five weeks and wants to 'learn more idioms'.
1. Distinguish the two error types in Yuki's Part 4 performance and decide which one should be addressed first.
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The two types are:
- Meaning shift: the rewrite is grammatical but changes aspect, time frame, or logical relation. Her MOVED answer reports a point in time instead of a state continuing from that point.
- Response-management error: writing two alternatives. Part 4 allows one complete answer; a second version, even if one is correct, risks a zero because the marker cannot treat it as a single intended answer.
Meaning shift should come first. It is the dominant pattern and it undermines the core construct of Part 4: same meaning, different form, keyword unchanged. The double-answer habit is easier to fix with a routine - choose one, cross out the other - but it will not help if the chosen sentence still changes the meaning. Idioms are a low-yield target here because the problem is structural precision, not lexical range.
2. Design a self-check Yuki can apply in the last 30 seconds of each Part 4 item.
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A workable self-check has three passes, each testing a different risk:
- Pass 1 - Time and aspect: 'Does my sentence place the situation at the same point or period as the original?' If the original implies 'from then until now', the rewrite must not become 'then only'.
- Pass 2 - Keyword and word limit: 'Is the keyword unchanged, and am I within the limit?' She should count words after writing, not while writing.
- Pass 3 - Single answer: 'Have I written exactly one complete sentence?' She should physically cross out drafts.
In training, the teacher should mark only one dimension at a time: first meaning preservation, then form. Marking everything at once hides the fact that her grammar is often already adequate. A useful drill is back-translation: she rewrites her own answer into a plain sentence and compares it with the original meaning.