-Our classroom__________ every day.

-So it is. It’s our duty to keep it clean and tidy.

A. cleans              B. is cleaning         C. is cleaned

 

【答案】

C

【解析】

試題分析:我們每天打掃教室!驮撊绱。保持教室的干凈整潔是我們的義務(wù)。好語境可知上文描述的是經(jīng)常性動作,故用一般現(xiàn)在時(shí)態(tài)。句子主語是動作對象,故用被動語態(tài)。選C。

考點(diǎn):時(shí)態(tài)及語態(tài)

點(diǎn)評:英語中的時(shí)態(tài)主要是借助于時(shí)間狀語與上下文語境來進(jìn)行判斷。解答此類題型,首先要注意句子中的時(shí)間狀語,如果沒有則要通過分析上下文,結(jié)合語境來判斷句子的時(shí)態(tài)。語態(tài)的判斷主要是確定句子主語與謂語動詞的關(guān)系。如果是主動關(guān)系則用主動語態(tài),泛指如果是動賓關(guān)系,則用被動語態(tài)。

 

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