The scientist ______ much of his time to increasing the rice production.A.spentB.offeredC.devoted D.paid
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C解析试题分析：考查动词辨析，A. spent花费，sb spend+time/money (in) doing sth注意主语是人B. offered提供，offer sb sth意思“提供某人某物”C. devoted贡献，sb devote time/money to doing sth注意to后面跟动名词D. Paid花费It paid sb time/money to do sth，所以选C考点：考查动词辨析
点评：动词辨析是高考常考内容，这几个词都表示花费，但是用法不同，要求考生掌握它们的用法即学即练：Who will _______ you to the airport?A. acpany B. account C. acplish D. acmodate选A