A change in lighting, a change in wording
1In a fictional exhibition room, a team replaces a soft lamp with a brighter one. The new lamp creates a reflection on a glass display case. Visitors in the story find the small labels harder to read, although the labels themselves have not changed. A student records, "The lamp affected the display." She is describing an influence, not automatically praising an improvement.
2Her partner rewrites the sentence as "The lamp had an effect on the display." They check that the lamp remains the cause and the display remains the affected thing. Because the event is in the past, the second sentence uses had. They also notice that the noun effect needs the phrase an effect on in this version, while the verb affected takes its object directly. Writing affected on the display would mix the two patterns.
3A third student suggests saying that the brighter lamp improved the display. The group rejects this change because the reported reflection made the labels harder, not easier, to read. Later, the team changes the angle of the lamp to reduce the reflection. This action does not prove that every visitor will find every label easy to read. For review, the students create paired cards containing the two sentence patterns. On the following practice card, they replace the lamp and display with noise and a recording, keeping the past tense and checking the direction of the influence. They want to recall a usable sentence frame, not just two similar translations.