题目内容

7.我们的教室一天打扫两次.Our classroom is cleaned twice a day..

分析 Our classroom is cleaned twice a day.

解答 答案:Our classroom is cleaned twice a day.分析句子说教室一天打扫两次,也就是教室作主语,应是被打扫的对象,用被动语态,这里是说客观事实用一般现在时,一般现在时的被动语态的构成是am/is/are+过去分词,我们的教室 Our classroom 是主语是单数,打扫用clean,故 Our classroom is cleaned,一天两次用twice a day作时间状语.故答案是Our classroom is cleaned twice a day.

点评 这里是考察被动语态的用法,各个时态的被动语态的构成要掌握.

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