Topic Development (Purpose & Focus)
Development questions ask whether each sentence helps the writer do a job. On ACT English, the best choice keeps the paragraph focused and supported instead of merely adding more words.
核心知识
Judge every detail by function. The right answer strengthens the main point with specific, relevant support, removes repetition, and keeps the paragraph consistent in focus, point of view, and level of detail.
深入理解
Rule: Development questions ask whether each sentence helps the writer do a job. The best choice keeps the paragraph focused and supported instead of merely adding more words.
- Ask first: is the paragraph explaining a process, supporting a claim, or showing why something matters?
- Judge details by function. ACT English rewards information that clarifies, proves, or sharpens the point. It does not reward facts that are merely true or loosely related.
- Strong development usually means one clear topic sentence, specific support, and revisions that keep the paragraph from drifting, repeating itself, or switching perspective without a reason.
示例解析
A student is writing about why the school planted shade trees near the bus loop. The paragraph purpose is to explain the project's practical benefit for students. Which choice best supports that purpose?
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