Question

19．-Why did Tom go to bed so late yesterday？
-Because his homework  _____ on time．

• A． didn't finish
• B． finish
• C． wasn't finished

Answer 1

分析 --為什么湯姆昨天這么晚睡覺？
--因?yàn)樗�的家庭作業(yè)沒有按時(shí)完成．

解答 答案：C  根據(jù)Why did Tom go to bed so late yesterday？推測(cè)可知：是因?yàn)樗�的家庭作業(yè)沒有按時(shí)完成．Because his homework  _____ on time．這句話的主語是his homework，是動(dòng)作的承受者，它和動(dòng)詞finish構(gòu)成被動(dòng)關(guān)系，所以應(yīng)該用被動(dòng)語態(tài)．根據(jù)yesterday，可知事情發(fā)生在過去，應(yīng)該用一般過去時(shí)的被動(dòng)語態(tài)．一般過去時(shí)的被動(dòng)語態(tài)的構(gòu)成：was/were+及物動(dòng)詞的過去分詞．所以應(yīng)該是wasn't finished，故選：C．

點(diǎn)評(píng) 主要考查被動(dòng)語態(tài)，當(dāng)句子的主語是動(dòng)作的承受者時(shí)，應(yīng)該用被動(dòng)語態(tài)，本題考查的是一般過去時(shí)態(tài)的被動(dòng)語態(tài)．