--Have you finished your work yet?
--Yes, I have . It ____________ half an hour ago.
A.has been finishedB.finishedC.was finishedD.has finished
C

試題分析:句意:你已經(jīng)完成你的工作了嗎?——是的,我完成了。它是一個(gè)小時(shí)前完成的。It是完成的對(duì)象,故用被動(dòng)語態(tài),結(jié)合時(shí)間狀語an hour ago,可知為過去時(shí)態(tài),故選C。
點(diǎn)評(píng):時(shí)態(tài)和語態(tài)的考察是初中的一個(gè)重點(diǎn)。區(qū)分時(shí)態(tài)的關(guān)鍵就是時(shí)間狀語和時(shí)間副詞,以及上下文,如本題中的yet和anhour ago。判斷語態(tài)主要是從動(dòng)詞和主語的關(guān)系出發(fā),如果是動(dòng)賓關(guān)系就是被動(dòng)語態(tài),反之只是主動(dòng)語態(tài)。
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