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15.Deep in the Atlantic Ocean,explorers have found ____may be the most valuable sunken treasure in history.(  )
A.whereB.whatC.thatD.which

分析 在大西洋的深处,探险者们已经发现了或许是历史上最有价值的沉没的宝藏.

解答 答案:B
题干中may be the most valuable sunken treasure in history是作found的宾语,是一个宾语从句;从句缺少主语,要用连接代词what;which表示有范围的选择,句意表达的是特定的宝藏.故选B.

点评 从属连词是连词的一种,用来引导名词性从句和状语从句.大致可分为三大类:that(无词义,不做成分)if,whether (表达是否的意义,但不做句子成分); 连接代词:who,whom,whose,what,which,whatever,whoever,whichever(有词义,在句子中可作主语、表语、宾语);连接副词:when,where,why,how,how many,how long,how far,however,whenever,wherever (有词义,作从句的状语).学习时,要注意区分和掌握.

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