题目内容
14．At present，the butter factory is still polluting the river though it _____to stop．（ ）| A． | ordered | B． | has ordered | ||
| C． | will be ordered | D． | has been ordered |
分析 目前，这家黄油厂仍旧在污染这条河流，尽管它已经被勒令停产．
解答 答案：D． 根据the butter factory is still polluting the river（这家黄油厂仍旧在污染这条河流）和 though （尽管）可以知道它已经被勒令停产，所以用现在完成时态的被动语态，选择D．
点评 考查现在完成时态的被动语态．语态是动词的一种形式，表示主语和谓语之间的具体关系，分为主动语态和被动语态两种，主动语态的各种时态也适用被动语态．例如：现在完成时态被动语态，过去完成时态被动语态，一般将来时态被动语态，正在进行时态被动态等．
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