With the development of science, more new technology         to the field of IT.

A.has introduced                         B.is being introduced

C.is introduced                           D.was introduced

 

【答案】

B

【解析】

試題分析:句意,隨著科技的發(fā)展,更多新的技術(shù)被引進(jìn)到IT領(lǐng)域。表示現(xiàn)階段正在進(jìn)行的動作,用現(xiàn)在進(jìn)行時。且主語new technology與動作introduce之間是被動關(guān)系,用現(xiàn)在分詞的被動語態(tài),故選B。

考點:時態(tài)和語態(tài)考查題

點評:動詞是謂語動所表示的動作或情況發(fā)生時間的各種形式。英語動詞有16種時態(tài),但是常用的只有9種:一般現(xiàn)在時、一般過去時、一般將來時、現(xiàn)在進(jìn)行時、過去進(jìn)行時、現(xiàn)在完成時、過去完成時、過去將來時、現(xiàn)在完成進(jìn)行時。當(dāng)句子的主語是動作的執(zhí)行者時,謂語的形式叫主動語態(tài)。句子的主語是動作承受者時,謂語的形式叫被動作語態(tài)。被動語態(tài)由助動詞be + 過去分詞構(gòu)成,時態(tài)通過be 表現(xiàn)出來。

 

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