题目内容
20.Unless strong measures ,the smog will continue to damage our health( )A. | will be taken | B. | are taken | C. | have taken | D. | are taking |
分析 除非采取强有力的措施,否则烟雾将继续损害我们的健康.
解答 答案:B
根据句式可知,unless引导一个条件状语从句,在该从句中遵守主将从现的原则,即主句用一般将来时,从句用一般现在时.另外,measure和take之间是被动关系,所以答案为B.
点评 考生需掌握一般现在时被动语态的用法并能结合具体语境做出适当选择.
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