题目内容
12．In order to make our hometown more beautiful，trees around the city every year．（ ）| A． | plant | B． | are planted | C． | will plant |
分析 为了使我们的家乡更美丽，每年在城市周围都种植许多树．
解答 答案：B 根据 trees around the city every year．可知主语trees是动作的承受者，与动词plant构成被动关系，应该用被动语态．根据时间状语every year，可知问的是现在的情况，应该用一般现在时态．一般现在时的被动语态的构成：am/is/are+及物动词的过去分词．主语trees，是复数，所以应该是are planted，故选：B．
点评 主要考查被动语态，当句子的主语是动作的承受者时，应该用被动语态，本题考查的是一般现在时态的被动语态．一定注意其构成形式，一般现在时的被动语态的构成：am/is/are+及物动词的过去分词．
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