就語意而言，現在分詞應該稱為「主動分詞」，因為現在分詞和主語間是主動的關係；過去分詞該稱為「被動分詞」，因為分詞和主語間是被動的關係：
主動分詞： Introducing his wife, he spoke loudly to the audience.
→ He introduced his wife.
被動分詞：Introduced by her husband, she smiled and waved to the audience.
→ She was introduced.
分詞作為形容詞時，依舊保持主動、被動的區別：
主動：some encouraging words → 激勵人的話
被動：an encouraged child → 受到激勵的孩子
Related question: 在分詞構句中使用進行貌有何意義？
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