题目内容
6.The environment in our town is getting worse and worse,so many trees____.( )| A. | are planting | B. | should be planted | ||
| C. | should plant | D. | will plant |
分析 句意:我们城镇的环境越来越差,因此大量的树应该被种植.
解答 答案:B.根据 trees,可知在这里它是动作的承受者,它作主语的时候应该用被动语态,再根据The environment in our town is getting worse and worse,可知我们的环境越来越差,大量的树应该被种植,这里需要用情态动词should,本句使用的是含有情态动词的被动语态,构成是:情态动词+be+动词过去分词.故选B.
点评 本题考查了含有情态动词的被动语态,做题时应注意其构成形式并注意动词过去分词的变法.
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