Question

7．我們的教室一天打掃兩次．Our classroom is cleaned twice a day．．

Answer 1

分析 Our classroom is cleaned twice a day．

解答 答案：Our classroom is cleaned twice a day．分析句子說(shuō)教室一天打掃兩次，也就是教室作主語(yǔ)，應(yīng)是被打掃的對(duì)象，用被動(dòng)語(yǔ)態(tài)，這里是說(shuō)客觀事實(shí)用一般現(xiàn)在時(shí)，一般現(xiàn)在時(shí)的被動(dòng)語(yǔ)態(tài)的構(gòu)成是am/is/are+過(guò)去分詞，我們的教室 Our classroom 是主語(yǔ)是單數(shù)，打掃用clean，故 Our classroom is cleaned，一天兩次用twice a day作時(shí)間狀語(yǔ)．故答案是Our classroom is cleaned twice a day．

點(diǎn)評(píng) 這里是考察被動(dòng)語(yǔ)態(tài)的用法，各個(gè)時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)的構(gòu)成要掌握．