题目内容
12.We are sure that PM 2.5_______if we care about protecting the environment.( )| A. | will control | B. | is controlled | ||
| C. | controls | D. | will be controlled |
分析 如果我们关心环保,我们相信PM2.5值将会被控制.
解答 正确答案:D.本题是由if引导的条件状语从句,遵循"主将从现"的原则,即if从句是一般现在时,主句是一般将来时,则可先排除BC选项.其次PM2.5和control是被动关系,则需用一般将来时的被动语态(will be+动词过去分词),故答案是D.
点评 本题考查一般将来时的被动语态,可先根据if条件状语从句确定时态,其次根据主谓关系确定语态即可做出选择.
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