Mr. Smith ______ a grammar book meant for senior high school students and will almost finish it.
A.has been writingB.has written
C.was writing D.has been written
A

試題分析:考察時態(tài)和語態(tài)。句意:史密斯先生一直在寫一本為高中生使用的語法書,很快就要完成了。根據(jù)句意說明這本書還沒有寫完,在過去這段時間里他一直都在寫。使用現(xiàn)在完成進(jìn)行時表示從過去到現(xiàn)在的一段時間里一直在做的事情,故A正確。
點評:英語中的時態(tài)主要由動詞的形式?jīng)Q定,因此在學(xué)習(xí)英語時態(tài)時,要注意分析動詞形式及具體語境,想象在那個特定的時間動作所發(fā)生的背景,這個動作是經(jīng)常性動作、一般性動作、進(jìn)行性動作、完成性動作還是將要發(fā)生的動作。
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