题目内容
10.The glass doors have taken the place of the wooden ones at the entrance,______in the natural light during the day.( )A. | to let | B. | letting | C. | let | D. | having let |
分析 句意:出口处的木门已经换上了玻璃门,这样(玻璃门)可以让白天的自然光充分地照射进来.
解答 答案:B
分析句子结构可知,逗号之前是主句,逗号之后是非谓语动词形式.主句主语是"The glass doors"与所给动词"let in"构成逻辑上的主动关系,要用现在分词,从而排除A和C项.D项"having let"现在分词的完成式表示的动作发生在谓语动词所表示的动作之前,显然不符合语境,因此B项符合语境,故选B.
点评 本题考查非谓语动词用法.做这类题目首先根据句意判断是谓语还是非谓语,如果是分词做状语的时候,看动词与逻辑主语构成主动关系,就使用现在分词的形式;如果二者构成被动关系就使用过去分词的形式.不定式表示动作未发生作目的状语.
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