基本含义
虽然 attend 和 take part in 都可以表示“参加”，但它们在用法和语义上存在明显差异。
attend
attend 强调“出席”或“到场”，不一定参与活动本身。常用于正式场合，如会议、课程、典礼等。
- She attended the conference but didn’t speak.
- Students must attend all lectures.
- He attended his sister’s wedding.
注意：attend 是及物动词，后面直接跟名词，不加介词。
take part in
take part in 强调“积极参与”某个活动，有实际的参与行为。
- They took part in the discussion actively.
- Did you take part in the school sports day?
- Many volunteers took part in the cleanup event.
注意：take part in 是动词短语，后面必须加介词 in。
对比总结
- attend：到场即可，不一定参与；多用于正式场合。
- take part in：必须实际参与；强调行动和互动。
- 例句对比：
- I attended the meeting.（我去了会议。）
- I took part in the meeting.（我在会议上发言/参与了讨论。）