—Who do you think will get the first prize?
—Mary, of course. She ________ for the competition for months.
A.is preparing B.was preparing
C.had been preparingD.has been preparing
D

試題分析:考查時(shí)態(tài),本題的關(guān)鍵詞是時(shí)間狀語for months;該短語做時(shí)間狀語的時(shí)候,經(jīng)常和現(xiàn)在進(jìn)行時(shí)或者現(xiàn)在完成進(jìn)行時(shí)連用。句意:—你認(rèn)為誰會(huì)贏得第一名?—也許是Mary,這幾個(gè)月她一直都在準(zhǔn)備,F(xiàn)在完成進(jìn)行時(shí)表示從過去某個(gè)時(shí)間到現(xiàn)在一直進(jìn)行的動(dòng)作,故D正確。
點(diǎn)評(píng):英語中的時(shí)態(tài)主要由動(dòng)詞的形式?jīng)Q定,因此在學(xué)習(xí)英語時(shí)態(tài)時(shí),要注意分析動(dòng)詞形式及具體語境,想象在那個(gè)特定的時(shí)間動(dòng)作所發(fā)生的背景,這個(gè)動(dòng)作是經(jīng)常性動(dòng)作、一般性動(dòng)作、進(jìn)行性動(dòng)作、完成性動(dòng)作還是將要發(fā)生的動(dòng)作。
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