—Hi, Susan, you look tired.
—I       for months for the coming celebration of our school’s 90th anniversary.
A.was preparingB.have been preparingC.had preparedD.prepare
B

試題分析:考查時(shí)態(tài):句意:--你好,Susan,你看起來很累。--我一直為即將到來的學(xué)校的90周年慶典做準(zhǔn)備。說明這幾個(gè)月一直在準(zhǔn)備,而且一直到現(xiàn)在都很累,用現(xiàn)在完成進(jìn)行時(shí),選B。
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。這題關(guān)鍵是弄清現(xiàn)在完成進(jìn)行時(shí)的基本用法和抓住句子的關(guān)鍵you look tired 和時(shí)間for months。
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