18．We took an active part in our school art festival．

分析 我們積極參加學(xué)校的藝術(shù)節(jié)．

解答 active 考查固定短語．根據(jù)句意：我們積極參加學(xué)校的藝術(shù)節(jié)．take an active part in"積極參加"．

點評 英語中的固定短語，既不能添詞，也不能少詞，是固定的，要求同學(xué)們在平時記憶準(zhǔn)確，然后根據(jù)句意找出記憶中的固定搭配，做出正確的答案．

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