题目内容
5.Cormorants'large feet ________ them quickly through the water.( )| A. | used to push | B. | are used to pushing | ||
| C. | used to pushing | D. | are used to push |
分析 鸬鹚的大脚是被用来推动他们尽快游水的.
解答 答案:D
主语是鸬鹚的大脚,和谓语动词用来是被动的关系,所以应该用一般现在时的被动语态,构成:am/is/are+及物动词的过去分词.be used to do sth.被用于做某事,主语是复数,应用are,根据句意:鸬鹚的大脚是被用来推动他们尽快游水的.故选D.
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.
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