题目内容
15.They can go home as soon as the homework _________.( )| A. | finishes | B. | finished | C. | was finished | D. | is finished | ||||
| E. | is finished |
分析 他们一完成作业就可以回家.
解答 答案:D
分析句子结构可知该句为含有as soon as 引导的时间状语从句的复合句,根据主句是含有情态动词的一般现在时,可确定时间状语从句的时态为一般现在时,结合选项可知从句的谓语动词为finish,根据从句的主语the homework 是谓语动词finish的承受者二者形成被动关系故确定为被动语态,故从句的谓语动词为一般现在时的被动语态,其结构为is/am/are+过去分词,又知homework为不可数名词只有单数形式,故助动词为is,finish的过去分词为finished,故填is finished,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,本题考查的是一般现在时态的被动语态.一定要注意:一般现在时态的被动语态的构成:am/is/are+及物动词的过去分词.
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