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        1. -How clean and tidy your bedroom is!
          -Thank you. It ________ every day:
          A.cleansB.is cleanedC.was cleanedD.is cleaning
          B

          試題分析:根據(jù)語(yǔ)境可知此題考查的是一般現(xiàn)在時(shí)的被動(dòng)語(yǔ)態(tài)的基本構(gòu)成和用法。臥室天天被打掃,主語(yǔ)是臥室,是動(dòng)作的承受者,并且是習(xí)慣性的動(dòng)作,故用一般現(xiàn)在時(shí)的被動(dòng)語(yǔ)態(tài)。主語(yǔ)是單數(shù)故選B。
          點(diǎn)評(píng):被動(dòng)語(yǔ)態(tài)表示主語(yǔ)是動(dòng)作的承受者。被動(dòng)語(yǔ)態(tài)是動(dòng)詞的一種特殊形式,一般說(shuō)來(lái),只有需要?jiǎng)幼鲗?duì)象的及物動(dòng)詞才有被動(dòng)語(yǔ)態(tài)。漢語(yǔ)往往用“被”、“受”、“給”等詞來(lái)表示被動(dòng)意義。被動(dòng)語(yǔ)態(tài)由“助動(dòng)詞be+及物動(dòng)詞的過(guò)去分詞”構(gòu)成。被動(dòng)語(yǔ)態(tài)的時(shí)態(tài)變化只改變be的形式,過(guò)去分詞部分不變。疑問(wèn)式和否定式的變化也如此。
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