题目内容
5.Our city is very clean and beautiful because the streets ______ every day.( )| A. | clean | B. | are cleaned | C. | are cleaning |
分析 我们的城市干净又漂亮因为街道每天都被打扫.
解答 答案:B.
首先根据时间状语every day,判断句中的谓语动词是经常性反复性的动作,所以用一般现在时,主语 the streets 是动作clean 的承受者,表示"被打扫"所以用被动语态,一般现在时被动语态的构成是:主语+am/is/are+动词的过去分词,主语是复数名词,be动词用are,故选B.
点评 本题考查时态和语态.每个时态都有标志词,熟记这些标志词是做题的关键.在没有时间状语的情况下可以根据语境来对时态做出判断.判断语态的关键则是观察主语是谓语动词的执行者还是承受者.
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