题目内容
18.The number of deaths from cancer will be reduced greatly if people _____ to eat more fruit and vegetables.( )A. | persuade | B. | will persuade | C. | be persuaded | D. | are persuaded |
分析 如果人们被说服能多吃些蔬菜和水果,那么癌症死亡人数将大大减少.
解答 答案:D
本句是条件状语从句,由于这里的主句使用了一般将来时,所以条件从句应使用一般现在时;并且从句中的主语 people 与谓语动词persuade构成被动关系,意为"人们被说服",所以此处要使用一般现在时的被动语态即:are persuaded;故选D
点评 本句考查了一般现在时的被动语态.做此类题时要从两个方面进行分析,一是要确定句子的时态应为一般现在时:由于本句是条件状语从句,所以根据条件状语从句关于时态对称的原则可知:这里主句使用了一般将来时,条件从句就要使用一般现在时;其次要通过分析句意来确定主语与谓语动词之间构成的是被动关系.
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