15.According to a historical record,the stone bridge datesfrom three thousand years.

分析 據(jù)歷史記載,這座石橋追溯到3000年前.

解答 答案是from.本題考查語境中選用恰當(dāng)?shù)脑~;date from=date back to追溯到…,該短語往往用一般現(xiàn)在時(shí);故答案是from.

點(diǎn)評(píng) 單詞拼寫必須在對(duì)語境整體理解的基礎(chǔ)上抓住指向答案的關(guān)鍵線索、固定句型或搭配等,同時(shí)注意所選詞的形式變化.

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