题目内容

19．The temperature will fall sharply the day after tomorrow，when a snowstorm ______ to
strike this area．（　　）
A．expectsB．is expected
C．has expectedD．will be expected

分析 后天气温将急剧下降，那时预计会有一场暴风雪席卷该地区．

解答 答案：B
根据句意以及when之前的逗号可知，本句是非限定性的定语从句；由于主句使用了一般将来时可知，此处由关系副词when引导的从句应使用一般现在时表示将来；由于动词expect与从句中的主语 a snowstorm 构成被动关系，因此空缺处应使用一般现在时态的被动语态；故选B

点评 本题考查了一般现在时态的被动语态的用法．做本题时，首先应知道：在状语或定语从句中，当主句使用了一般将来时，从句应使用一般现在时表示将来；其次应注意分析主语与谓语动词是否构成被动关系，从确定句子应使用的语态．

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